Discover high-quality Amplifier Circuit with various amplifier circuits that suit your choice at Hallroad PK. Enhance your audio experience with us.
₨575.00
18W TDA2030 Mono Low Pass Woofer Amplifier Board only Bass Output Kit
SKU: N/A- 18W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: JRC4558, TDA2030
- Supply voltage: 12+12 VOLTS AC (4A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 18W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency response: 20Hz to 200Hz
₨795.00
3W MP3 Speaker Amplifier Audio Receiver Module with Bluetooth 4.1 MP3 WAV Decoding Board Support USBTFU-DISKIR Remote Control by Elerca
SKU: N/A- Power Supply: 3.7V – 5V.
- Output Power: 3W + 3W
- SNR: 90dB.
- THD+N: -70dB
- Crosstalk: -86dB.
- DNR: 91dB.
- Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP.
- LOS: >15m
- Sold by: Electrica
₨970.00
70W Mono Low Pass Woofer Amplifier Board only Bass Output Kit
SKU: N/A- 70W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: LM324, D1047 & B688 NPN PNP Design
- Supply voltage: 24+24 VOLTS AC (8A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 70W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency responce: 20Hz to 200Hz
- Size: 10.5cmx10cmx5.5cm
₨412.00 Audio Mono Transistor Amplifier Circuit kit 45 Watts Board
SKU: SKU133- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25+25 VOLTS 5A AC
- Output channel: 1 channel Mono
- Output power: 45W
- Power efficiency: over 80%
- Impedance: 4O to 😯
- Frequency response: 20Hz to 2000Hz
- Speaker size: 6 to 8 inches
₨180.00
Bass Tone Treble Stereo Kit Volume Control
SKU: N/A- Bass Tone Treble Kit Volume Control Module
- Better performance, the frequency band is wide and the noise is very small
- Sound warm and distorted, high fidelity
- Working Voltage: DC 12V
- Tune Type: Low/High Pitch/Balance/Volume
- Channel: Double channel (Stereo)
₨640.00
Best Quality D1047 Mono Audio Amplifier Circuit 70 Watts
SKU: 261633084_PK-1479588788- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25 VOLTS 6A AC
- Output channel: 1 channel Mono
- Output power: 70W
- Power efficiency: over 80%
- Impedance: 40 to 80
- Frequency response: 20Hz to 2000Hz
- Dimenssion: 12cm x 7.5cm x 5cm
- Speaker size: 8 to 10 inches (10 inches recommended)
₨1,775.00
D1047 Audio Stereo Transistor Amplifier Circuit kit 70+70 Watts Class AB Board
SKU: 213883131_PK-1422459015Product Name: D1047 Stereo Audio Amplifier Circuit
Chip Type: Class AB
Supply voltage: 25+25 VOLTS AC
Output channel: 2-channel Stereo
Output power: 70W+70W
Power efficiency: over 80%
Impedance: 4Ω to 8Ω
Frequency response: 20Hz to 2000Hz
Speakers size: 8 to 10 inches (10 inches recommended)
₨495.00
DIY Audio Amplifier Bass Tone Echo PCBs Bare Circuit Collection
SKU: N/AThe DIY Amplifier Bare Boards Collection is especially for DIY Project lovers. All components description are mentioned on Boards for easy understanding in installation, 600w and 800W Amplifier boards are specially designed for outdoor sound systems, only experts can install them. (not recommended for beginners).DimmensionsTDA7388 Board: 3.5 inch x 2 inch2.1 TDA2030 Board: 4.5 inch x 2.6 inch2.1 TDA2030 & D1047 Board: 6.6 inch x 3.5 inchD1047 200W Setreo Board: 8.5 inch x 4.5 inchNPN PNP 4 Paired transistors 600W Stereo Board: 8.5 inch x 3.9 inchNPN PNP 6 Paired transistors 800W Stereo Board: 17.7 inch x 4.5 inch
₨309.00
LA4440 BTL 19W+19W Stereo Amplifier Board without ICs Kit
SKU: N/ALA4440 12V pure DC power amplifier board parts level after 2 19W+19W dual channel electronic DIY Kit
Boot without current shock, high signal-to-noise ratio, no ears close to the speakers can hardly hear the noise input conditions; Sound great, high fine, soft, fully, no obvious harsh, bass strong, full, strong, and freely .Recently saw a few customers said calorific value is big, may be not the cause of the radiator or radiator small, to inform customers: the board will be required to have appropriate to the size of the radiator (small) appropriate big unfavorable
ICs and heat sinks are not included in kit.
₨320.00
Low Pass Filter Subwoofer Preamplifier LPF Board
SKU: N/A- Supply voltage: Dual DC Type I: 12V+12V Type II: 25V+25V
- Frequency range: 22Hz-300Hz
- Audio input: mono or two channels
- Audio output: monaural
- Board size: Type I: 4.3x5cmm, thickness: 1.6mm
- Net weight of the plate Finished: 30g
₨420.00
MP3 Bluetooth Stereo amplifier XY-BT-mini Circuit Board Module
SKU: N/A- Model Number: MP3 Bluetooth Decoder Board
- Power Supply: 3.7-5V
- SNR: 90dB
- THD + N: -70dB
- Crosstalk: -86dB
- DNR: 91dB
- Support Profile: A2DP / AVCTP / AVDTP / AVRCP / HFP
- LOS: more than the 15m
- USB-powered Universal Micro- USB 5V power supply
- 3.7-5V Supply Pad External 3.7-5V lithium battery power conversion
- LED indicator Bluetooth mode long blue light
- 3.5mm stereo o interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
- Color: Red, Black
- Material: PC + Metal
₨229.00
PAM8403 5V Power Audio Amplifier Board Module 2 Channel 3W + 3W Volume Control
SKU: N/A- Model: PAM8403 amplifier module.
- With power ON-OFF & volume control button.
- Good sound quality
- Super mini design allows it to be easily placed in a variety of digital products.
- Filterless, Low Quiescent Current and Low EMI
- Can use the computer USB port, USB power bank, or a mobile phone charger to supply the 5V support power
- Battery power can also be used 3-5V
- Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω or 8Ω speaker load and 5V power supply
- CMOS class D amplifier design for high efficiency and low cost
- The noise-canceling circuit built into the amplifier board
- Power on / off without popping noise
- The module has short-circuited current protection, under-voltage lockout, and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)
- Operating voltage: 2.5V-5.5V
- Speaker Load: 4-8 Ohms
- Length: 29mm
- Width: 20mm
- The overall height after installation is about 16mm.
₨295.00
PAM8610 15W + 15W Two Channel Stereo Class D Amplifier Board
SKU: N/A1. Supply voltage: DC 7V-15V
2. Output power: 10w + 10w (8 load)
3. Efficiency: 90%
4. Shutdown Current: 4uA
5. Quiescent current; 20mA
6. SNR: 86%
7. Total harmonic distortion: 5W / 1KHz / 8 —- 0.1%
8. Frequency range: 20Hz-20KHz
9. Input impedance: 15K
10. Output Impedance: 4-8
11. Amplifier board size: 30mm * 25mm * 2.5mm
1. The power supply voltage limit is 16.5V, do not use more than this voltage.
2. The power supply is recommended for a 12v, 3A power supply filter better
3. 4-8 inch stereo speakers recommended.
4. Do not short-circuit the audio output to each other or short to ground.
5. Carefully check before electricity, and ensure wiring is correct before electricity.
₨850.00
PT2399 Echo board Audio Microphone Preamplifier Reverberation Echo sound
SKU: 274163163_PK-1487563354- Product model: 4-Channel Echo Board
- Working Voltage: DC 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: mono
- Input: AUX + four Microphones
- Frequency response range: 25hz~17KHZ
- Size: 218*54*25mm
- Weight: 75g
- Notice: Only can used for moving-coil microphone
₨849.00
PT2399 Echo Microphone Bass Tone Treble Pre Amplifier Board Karaoke Reverb Kit
SKU: SKU117- Product model: SK177
- Working Voltage: Dual DC 12V + 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: Stereo
- Input: AUX + two Microphones
- Frequency response range:25hz~17KHZ
- Size:15CM X 5.4CM
- Weight:75g
- Notice: Only can used for moving-coil microphone
₨440.00
PT2399 Karaoke Kit Microphone Board Reverberation Echo Sound Circuit
SKU: N/A- PT2399 Microphone Karaoke board
- Reverberation Echo sound
- Double electric PT2399 reverberation board
- CMOS Technology
- Auto Reset Function
- Low Noise, No<-90dBV Typical
- Low Distortion, THD<0.5% Typical
- External Adjustable VCO
- High sensitivity
- Low power consumption
- Size 7.5*4*2.2cm
₨820.00
TDA2030 2.1 Channel 54 Watts Audio Amplifier Board Subwoofer
SKU: N/A- Product Name: 2.1 Channel Circuit TDA2030 54 Watts Audio Amplifier Board Subwoofer
- Chip Type: Class AB
- Chip model: TDA2030 & JRC4558
- Supply voltage: 12+12 VOLTS AC
- Output channel: 2.1 channel
- Output power: 18W+18W+18W
- Power efficiency: over 90%
- Impedance: 4Ω to 8Ω (Use 4Ω for Double Power)
- Frequency response: 20Hz to 2000Hz
- Woofer Frequency response: 20Hz to 250Hz
- Size: 11*6.5*4cm
₨284.00
TDA2030 TDA2030A 15W Mono Audio Amplifier Board Module
SKU: N/A- On-board audio amplifier chip TDA2030A
- Mono 15W Amplifier Circuit Design
- On-board speaker terminal block
- On-board 10K adjustable resistance, you can adjust the amplified volume
- Onboard power indicator
- The main board has pins leads, you can directly input audio signal (GND, IN)
- The working voltage: 6 ~ 15V
- Board size: 32 (mm) x24 (mm)
₨832.00
TDA7297 15W+15W Audio Amplifier Module
SKU: 203- 100% brand new and high quality
- Working voltage: 9 to 15 v
- The on-board TDA7297 audio power amplifier chip. double-channel 15W+15W
- The board size: is 55 (mm) x 55 (mm)
- The onboard TDA7297 audio power amplifier chip, double channel 15W+15W, speaker for 4-8 10-50W use
- main pin has LED chips, convenient external device control,
- Onboard potentiometer, can adjust the volume of output size
- Support for DC, terminals, pin 3 power supply input mode, the default for the DC,
₨549.00
TEA2025 2.1 Channel 6W+6W+10W Audio Amplifier Board
SKU: N/A- Amplifier chip: TEA2025B
- Channel: 2.1 channels
- Input voltage: AC 6V or DC 6V-9V
- Output rated power: 6W+6W+10W
- Speaker impedance and size: 4-8Ohm (3 – 5 inch)
18W TDA2030 Mono Low Pass Woofer Amplifier Board only Bass Output Kit
- 18W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: JRC4558, TDA2030
- Supply voltage: 12+12 VOLTS AC (4A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 18W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency response: 20Hz to 200Hz
3W MP3 Speaker Amplifier Audio Receiver Module with Bluetooth 4.1 MP3 WAV Decoding Board Support USBTFU-DISKIR Remote Control by Elerca
- Power Supply: 3.7V – 5V.
- Output Power: 3W + 3W
- SNR: 90dB.
- THD+N: -70dB
- Crosstalk: -86dB.
- DNR: 91dB.
- Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP.
- LOS: >15m
- Sold by: Electrica
70W Mono Low Pass Woofer Amplifier Board only Bass Output Kit
- 70W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: LM324, D1047 & B688 NPN PNP Design
- Supply voltage: 24+24 VOLTS AC (8A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 70W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency responce: 20Hz to 200Hz
- Size: 10.5cmx10cmx5.5cm
Audio Mono Transistor Amplifier Circuit kit 45 Watts Board
- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25+25 VOLTS 5A AC
- Output channel: 1 channel Mono
- Output power: 45W
- Power efficiency: over 80%
- Impedance: 4O to 😯
- Frequency response: 20Hz to 2000Hz
- Speaker size: 6 to 8 inches
Bass Tone Treble Stereo Kit Volume Control
- Bass Tone Treble Kit Volume Control Module
- Better performance, the frequency band is wide and the noise is very small
- Sound warm and distorted, high fidelity
- Working Voltage: DC 12V
- Tune Type: Low/High Pitch/Balance/Volume
- Channel: Double channel (Stereo)
Best Quality D1047 Mono Audio Amplifier Circuit 70 Watts
- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25 VOLTS 6A AC
- Output channel: 1 channel Mono
- Output power: 70W
- Power efficiency: over 80%
- Impedance: 40 to 80
- Frequency response: 20Hz to 2000Hz
- Dimenssion: 12cm x 7.5cm x 5cm
- Speaker size: 8 to 10 inches (10 inches recommended)
D1047 Audio Stereo Transistor Amplifier Circuit kit 70+70 Watts Class AB Board
Product Name: D1047 Stereo Audio Amplifier Circuit
Chip Type: Class AB
Supply voltage: 25+25 VOLTS AC
Output channel: 2-channel Stereo
Output power: 70W+70W
Power efficiency: over 80%
Impedance: 4Ω to 8Ω
Frequency response: 20Hz to 2000Hz
Speakers size: 8 to 10 inches (10 inches recommended)
DIY Audio Amplifier Bass Tone Echo PCBs Bare Circuit Collection
The DIY Amplifier Bare Boards Collection is especially for DIY Project lovers. All components description are mentioned on Boards for easy understanding in installation, 600w and 800W Amplifier boards are specially designed for outdoor sound systems, only experts can install them. (not recommended for beginners).DimmensionsTDA7388 Board: 3.5 inch x 2 inch2.1 TDA2030 Board: 4.5 inch x 2.6 inch2.1 TDA2030 & D1047 Board: 6.6 inch x 3.5 inchD1047 200W Setreo Board: 8.5 inch x 4.5 inchNPN PNP 4 Paired transistors 600W Stereo Board: 8.5 inch x 3.9 inchNPN PNP 6 Paired transistors 800W Stereo Board: 17.7 inch x 4.5 inch
LA4440 BTL 19W+19W Stereo Amplifier Board without ICs Kit
LA4440 12V pure DC power amplifier board parts level after 2 19W+19W dual channel electronic DIY Kit
Boot without current shock, high signal-to-noise ratio, no ears close to the speakers can hardly hear the noise input conditions; Sound great, high fine, soft, fully, no obvious harsh, bass strong, full, strong, and freely .Recently saw a few customers said calorific value is big, may be not the cause of the radiator or radiator small, to inform customers: the board will be required to have appropriate to the size of the radiator (small) appropriate big unfavorable
ICs and heat sinks are not included in kit.
Low Pass Filter Subwoofer Preamplifier LPF Board
- Supply voltage: Dual DC Type I: 12V+12V Type II: 25V+25V
- Frequency range: 22Hz-300Hz
- Audio input: mono or two channels
- Audio output: monaural
- Board size: Type I: 4.3x5cmm, thickness: 1.6mm
- Net weight of the plate Finished: 30g
MP3 Bluetooth Stereo amplifier XY-BT-mini Circuit Board Module
- Model Number: MP3 Bluetooth Decoder Board
- Power Supply: 3.7-5V
- SNR: 90dB
- THD + N: -70dB
- Crosstalk: -86dB
- DNR: 91dB
- Support Profile: A2DP / AVCTP / AVDTP / AVRCP / HFP
- LOS: more than the 15m
- USB-powered Universal Micro- USB 5V power supply
- 3.7-5V Supply Pad External 3.7-5V lithium battery power conversion
- LED indicator Bluetooth mode long blue light
- 3.5mm stereo o interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
- Color: Red, Black
- Material: PC + Metal
PAM8403 5V Power Audio Amplifier Board Module 2 Channel 3W + 3W Volume Control
- Model: PAM8403 amplifier module.
- With power ON-OFF & volume control button.
- Good sound quality
- Super mini design allows it to be easily placed in a variety of digital products.
- Filterless, Low Quiescent Current and Low EMI
- Can use the computer USB port, USB power bank, or a mobile phone charger to supply the 5V support power
- Battery power can also be used 3-5V
- Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω or 8Ω speaker load and 5V power supply
- CMOS class D amplifier design for high efficiency and low cost
- The noise-canceling circuit built into the amplifier board
- Power on / off without popping noise
- The module has short-circuited current protection, under-voltage lockout, and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)
- Operating voltage: 2.5V-5.5V
- Speaker Load: 4-8 Ohms
- Length: 29mm
- Width: 20mm
- The overall height after installation is about 16mm.
PAM8610 15W + 15W Two Channel Stereo Class D Amplifier Board
1. Supply voltage: DC 7V-15V
2. Output power: 10w + 10w (8 load)
3. Efficiency: 90%
4. Shutdown Current: 4uA
5. Quiescent current; 20mA
6. SNR: 86%
7. Total harmonic distortion: 5W / 1KHz / 8 —- 0.1%
8. Frequency range: 20Hz-20KHz
9. Input impedance: 15K
10. Output Impedance: 4-8
11. Amplifier board size: 30mm * 25mm * 2.5mm
1. The power supply voltage limit is 16.5V, do not use more than this voltage.
2. The power supply is recommended for a 12v, 3A power supply filter better
3. 4-8 inch stereo speakers recommended.
4. Do not short-circuit the audio output to each other or short to ground.
5. Carefully check before electricity, and ensure wiring is correct before electricity.
PT2399 Echo board Audio Microphone Preamplifier Reverberation Echo sound
- Product model: 4-Channel Echo Board
- Working Voltage: DC 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: mono
- Input: AUX + four Microphones
- Frequency response range: 25hz~17KHZ
- Size: 218*54*25mm
- Weight: 75g
- Notice: Only can used for moving-coil microphone
PT2399 Echo Microphone Bass Tone Treble Pre Amplifier Board Karaoke Reverb Kit
- Product model: SK177
- Working Voltage: Dual DC 12V + 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: Stereo
- Input: AUX + two Microphones
- Frequency response range:25hz~17KHZ
- Size:15CM X 5.4CM
- Weight:75g
- Notice: Only can used for moving-coil microphone
PT2399 Karaoke Kit Microphone Board Reverberation Echo Sound Circuit
- PT2399 Microphone Karaoke board
- Reverberation Echo sound
- Double electric PT2399 reverberation board
- CMOS Technology
- Auto Reset Function
- Low Noise, No<-90dBV Typical
- Low Distortion, THD<0.5% Typical
- External Adjustable VCO
- High sensitivity
- Low power consumption
- Size 7.5*4*2.2cm
TDA2030 2.1 Channel 54 Watts Audio Amplifier Board Subwoofer
- Product Name: 2.1 Channel Circuit TDA2030 54 Watts Audio Amplifier Board Subwoofer
- Chip Type: Class AB
- Chip model: TDA2030 & JRC4558
- Supply voltage: 12+12 VOLTS AC
- Output channel: 2.1 channel
- Output power: 18W+18W+18W
- Power efficiency: over 90%
- Impedance: 4Ω to 8Ω (Use 4Ω for Double Power)
- Frequency response: 20Hz to 2000Hz
- Woofer Frequency response: 20Hz to 250Hz
- Size: 11*6.5*4cm
TDA2030 TDA2030A 15W Mono Audio Amplifier Board Module
- On-board audio amplifier chip TDA2030A
- Mono 15W Amplifier Circuit Design
- On-board speaker terminal block
- On-board 10K adjustable resistance, you can adjust the amplified volume
- Onboard power indicator
- The main board has pins leads, you can directly input audio signal (GND, IN)
- The working voltage: 6 ~ 15V
- Board size: 32 (mm) x24 (mm)
TDA7297 15W+15W Audio Amplifier Module
- 100% brand new and high quality
- Working voltage: 9 to 15 v
- The on-board TDA7297 audio power amplifier chip. double-channel 15W+15W
- The board size: is 55 (mm) x 55 (mm)
- The onboard TDA7297 audio power amplifier chip, double channel 15W+15W, speaker for 4-8 10-50W use
- main pin has LED chips, convenient external device control,
- Onboard potentiometer, can adjust the volume of output size
- Support for DC, terminals, pin 3 power supply input mode, the default for the DC,
TEA2025 2.1 Channel 6W+6W+10W Audio Amplifier Board
- Amplifier chip: TEA2025B
- Channel: 2.1 channels
- Input voltage: AC 6V or DC 6V-9V
- Output rated power: 6W+6W+10W
- Speaker impedance and size: 4-8Ohm (3 – 5 inch)
18W TDA2030 Mono Low Pass Woofer Amplifier Board only Bass Output Kit
- 18W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: JRC4558, TDA2030
- Supply voltage: 12+12 VOLTS AC (4A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 18W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency response: 20Hz to 200Hz
3W MP3 Speaker Amplifier Audio Receiver Module with Bluetooth 4.1 MP3 WAV Decoding Board Support USBTFU-DISKIR Remote Control by Elerca
- Power Supply: 3.7V – 5V.
- Output Power: 3W + 3W
- SNR: 90dB.
- THD+N: -70dB
- Crosstalk: -86dB.
- DNR: 91dB.
- Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP.
- LOS: >15m
- Sold by: Electrica
70W Mono Low Pass Woofer Amplifier Board only Bass Output Kit
- 70W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: LM324, D1047 & B688 NPN PNP Design
- Supply voltage: 24+24 VOLTS AC (8A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 70W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency responce: 20Hz to 200Hz
- Size: 10.5cmx10cmx5.5cm
Audio Mono Transistor Amplifier Circuit kit 45 Watts Board
- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25+25 VOLTS 5A AC
- Output channel: 1 channel Mono
- Output power: 45W
- Power efficiency: over 80%
- Impedance: 4O to 😯
- Frequency response: 20Hz to 2000Hz
- Speaker size: 6 to 8 inches
Bass Tone Treble Stereo Kit Volume Control
- Bass Tone Treble Kit Volume Control Module
- Better performance, the frequency band is wide and the noise is very small
- Sound warm and distorted, high fidelity
- Working Voltage: DC 12V
- Tune Type: Low/High Pitch/Balance/Volume
- Channel: Double channel (Stereo)
Best Quality D1047 Mono Audio Amplifier Circuit 70 Watts
- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25 VOLTS 6A AC
- Output channel: 1 channel Mono
- Output power: 70W
- Power efficiency: over 80%
- Impedance: 40 to 80
- Frequency response: 20Hz to 2000Hz
- Dimenssion: 12cm x 7.5cm x 5cm
- Speaker size: 8 to 10 inches (10 inches recommended)
D1047 Audio Stereo Transistor Amplifier Circuit kit 70+70 Watts Class AB Board
Product Name: D1047 Stereo Audio Amplifier Circuit
Chip Type: Class AB
Supply voltage: 25+25 VOLTS AC
Output channel: 2-channel Stereo
Output power: 70W+70W
Power efficiency: over 80%
Impedance: 4Ω to 8Ω
Frequency response: 20Hz to 2000Hz
Speakers size: 8 to 10 inches (10 inches recommended)
DIY Audio Amplifier Bass Tone Echo PCBs Bare Circuit Collection
The DIY Amplifier Bare Boards Collection is especially for DIY Project lovers. All components description are mentioned on Boards for easy understanding in installation, 600w and 800W Amplifier boards are specially designed for outdoor sound systems, only experts can install them. (not recommended for beginners).DimmensionsTDA7388 Board: 3.5 inch x 2 inch2.1 TDA2030 Board: 4.5 inch x 2.6 inch2.1 TDA2030 & D1047 Board: 6.6 inch x 3.5 inchD1047 200W Setreo Board: 8.5 inch x 4.5 inchNPN PNP 4 Paired transistors 600W Stereo Board: 8.5 inch x 3.9 inchNPN PNP 6 Paired transistors 800W Stereo Board: 17.7 inch x 4.5 inch
LA4440 BTL 19W+19W Stereo Amplifier Board without ICs Kit
LA4440 12V pure DC power amplifier board parts level after 2 19W+19W dual channel electronic DIY Kit
Boot without current shock, high signal-to-noise ratio, no ears close to the speakers can hardly hear the noise input conditions; Sound great, high fine, soft, fully, no obvious harsh, bass strong, full, strong, and freely .Recently saw a few customers said calorific value is big, may be not the cause of the radiator or radiator small, to inform customers: the board will be required to have appropriate to the size of the radiator (small) appropriate big unfavorable
ICs and heat sinks are not included in kit.
Low Pass Filter Subwoofer Preamplifier LPF Board
- Supply voltage: Dual DC Type I: 12V+12V Type II: 25V+25V
- Frequency range: 22Hz-300Hz
- Audio input: mono or two channels
- Audio output: monaural
- Board size: Type I: 4.3x5cmm, thickness: 1.6mm
- Net weight of the plate Finished: 30g
MP3 Bluetooth Stereo amplifier XY-BT-mini Circuit Board Module
- Model Number: MP3 Bluetooth Decoder Board
- Power Supply: 3.7-5V
- SNR: 90dB
- THD + N: -70dB
- Crosstalk: -86dB
- DNR: 91dB
- Support Profile: A2DP / AVCTP / AVDTP / AVRCP / HFP
- LOS: more than the 15m
- USB-powered Universal Micro- USB 5V power supply
- 3.7-5V Supply Pad External 3.7-5V lithium battery power conversion
- LED indicator Bluetooth mode long blue light
- 3.5mm stereo o interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
- Color: Red, Black
- Material: PC + Metal
PAM8403 5V Power Audio Amplifier Board Module 2 Channel 3W + 3W Volume Control
- Model: PAM8403 amplifier module.
- With power ON-OFF & volume control button.
- Good sound quality
- Super mini design allows it to be easily placed in a variety of digital products.
- Filterless, Low Quiescent Current and Low EMI
- Can use the computer USB port, USB power bank, or a mobile phone charger to supply the 5V support power
- Battery power can also be used 3-5V
- Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω or 8Ω speaker load and 5V power supply
- CMOS class D amplifier design for high efficiency and low cost
- The noise-canceling circuit built into the amplifier board
- Power on / off without popping noise
- The module has short-circuited current protection, under-voltage lockout, and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)
- Operating voltage: 2.5V-5.5V
- Speaker Load: 4-8 Ohms
- Length: 29mm
- Width: 20mm
- The overall height after installation is about 16mm.
PAM8610 15W + 15W Two Channel Stereo Class D Amplifier Board
1. Supply voltage: DC 7V-15V
2. Output power: 10w + 10w (8 load)
3. Efficiency: 90%
4. Shutdown Current: 4uA
5. Quiescent current; 20mA
6. SNR: 86%
7. Total harmonic distortion: 5W / 1KHz / 8 —- 0.1%
8. Frequency range: 20Hz-20KHz
9. Input impedance: 15K
10. Output Impedance: 4-8
11. Amplifier board size: 30mm * 25mm * 2.5mm
1. The power supply voltage limit is 16.5V, do not use more than this voltage.
2. The power supply is recommended for a 12v, 3A power supply filter better
3. 4-8 inch stereo speakers recommended.
4. Do not short-circuit the audio output to each other or short to ground.
5. Carefully check before electricity, and ensure wiring is correct before electricity.
PT2399 Echo board Audio Microphone Preamplifier Reverberation Echo sound
- Product model: 4-Channel Echo Board
- Working Voltage: DC 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: mono
- Input: AUX + four Microphones
- Frequency response range: 25hz~17KHZ
- Size: 218*54*25mm
- Weight: 75g
- Notice: Only can used for moving-coil microphone
PT2399 Echo Microphone Bass Tone Treble Pre Amplifier Board Karaoke Reverb Kit
- Product model: SK177
- Working Voltage: Dual DC 12V + 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: Stereo
- Input: AUX + two Microphones
- Frequency response range:25hz~17KHZ
- Size:15CM X 5.4CM
- Weight:75g
- Notice: Only can used for moving-coil microphone
PT2399 Karaoke Kit Microphone Board Reverberation Echo Sound Circuit
- PT2399 Microphone Karaoke board
- Reverberation Echo sound
- Double electric PT2399 reverberation board
- CMOS Technology
- Auto Reset Function
- Low Noise, No<-90dBV Typical
- Low Distortion, THD<0.5% Typical
- External Adjustable VCO
- High sensitivity
- Low power consumption
- Size 7.5*4*2.2cm
TDA2030 2.1 Channel 54 Watts Audio Amplifier Board Subwoofer
- Product Name: 2.1 Channel Circuit TDA2030 54 Watts Audio Amplifier Board Subwoofer
- Chip Type: Class AB
- Chip model: TDA2030 & JRC4558
- Supply voltage: 12+12 VOLTS AC
- Output channel: 2.1 channel
- Output power: 18W+18W+18W
- Power efficiency: over 90%
- Impedance: 4Ω to 8Ω (Use 4Ω for Double Power)
- Frequency response: 20Hz to 2000Hz
- Woofer Frequency response: 20Hz to 250Hz
- Size: 11*6.5*4cm
TDA2030 TDA2030A 15W Mono Audio Amplifier Board Module
- On-board audio amplifier chip TDA2030A
- Mono 15W Amplifier Circuit Design
- On-board speaker terminal block
- On-board 10K adjustable resistance, you can adjust the amplified volume
- Onboard power indicator
- The main board has pins leads, you can directly input audio signal (GND, IN)
- The working voltage: 6 ~ 15V
- Board size: 32 (mm) x24 (mm)
TDA7297 15W+15W Audio Amplifier Module
- 100% brand new and high quality
- Working voltage: 9 to 15 v
- The on-board TDA7297 audio power amplifier chip. double-channel 15W+15W
- The board size: is 55 (mm) x 55 (mm)
- The onboard TDA7297 audio power amplifier chip, double channel 15W+15W, speaker for 4-8 10-50W use
- main pin has LED chips, convenient external device control,
- Onboard potentiometer, can adjust the volume of output size
- Support for DC, terminals, pin 3 power supply input mode, the default for the DC,
TEA2025 2.1 Channel 6W+6W+10W Audio Amplifier Board
- Amplifier chip: TEA2025B
- Channel: 2.1 channels
- Input voltage: AC 6V or DC 6V-9V
- Output rated power: 6W+6W+10W
- Speaker impedance and size: 4-8Ohm (3 – 5 inch)
18W TDA2030 Mono Low Pass Woofer Amplifier Board only Bass Output Kit
- 18W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: JRC4558, TDA2030
- Supply voltage: 12+12 VOLTS AC (4A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 18W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency response: 20Hz to 200Hz
3W MP3 Speaker Amplifier Audio Receiver Module with Bluetooth 4.1 MP3 WAV Decoding Board Support USBTFU-DISKIR Remote Control by Elerca
- Power Supply: 3.7V – 5V.
- Output Power: 3W + 3W
- SNR: 90dB.
- THD+N: -70dB
- Crosstalk: -86dB.
- DNR: 91dB.
- Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP.
- LOS: >15m
- Sold by: Electrica
70W Mono Low Pass Woofer Amplifier Board only Bass Output Kit
- 70W Mono Low Pass Amplifier Board only Bass Output Kit
- Chip Type: Class AB
- Chip model: LM324, D1047 & B688 NPN PNP Design
- Supply voltage: 24+24 VOLTS AC (8A Transformer Recommended)
- Output channel: 1 channel Bass only
- Output power: 70W
- Power efficiency: over 90%
- Impedance: 4O to 😯 (Use 4O for Double Power)
- Woofer Frequency responce: 20Hz to 200Hz
- Size: 10.5cmx10cmx5.5cm
Audio Mono Transistor Amplifier Circuit kit 45 Watts Board
- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25+25 VOLTS 5A AC
- Output channel: 1 channel Mono
- Output power: 45W
- Power efficiency: over 80%
- Impedance: 4O to 😯
- Frequency response: 20Hz to 2000Hz
- Speaker size: 6 to 8 inches
Bass Tone Treble Stereo Kit Volume Control
- Bass Tone Treble Kit Volume Control Module
- Better performance, the frequency band is wide and the noise is very small
- Sound warm and distorted, high fidelity
- Working Voltage: DC 12V
- Tune Type: Low/High Pitch/Balance/Volume
- Channel: Double channel (Stereo)
Best Quality D1047 Mono Audio Amplifier Circuit 70 Watts
- Product Name: Mono Audio Amplifier Circuit Kit
- Chip Type: Class AB
- Supply voltage: 25 VOLTS 6A AC
- Output channel: 1 channel Mono
- Output power: 70W
- Power efficiency: over 80%
- Impedance: 40 to 80
- Frequency response: 20Hz to 2000Hz
- Dimenssion: 12cm x 7.5cm x 5cm
- Speaker size: 8 to 10 inches (10 inches recommended)
D1047 Audio Stereo Transistor Amplifier Circuit kit 70+70 Watts Class AB Board
Product Name: D1047 Stereo Audio Amplifier Circuit
Chip Type: Class AB
Supply voltage: 25+25 VOLTS AC
Output channel: 2-channel Stereo
Output power: 70W+70W
Power efficiency: over 80%
Impedance: 4Ω to 8Ω
Frequency response: 20Hz to 2000Hz
Speakers size: 8 to 10 inches (10 inches recommended)
DIY Audio Amplifier Bass Tone Echo PCBs Bare Circuit Collection
The DIY Amplifier Bare Boards Collection is especially for DIY Project lovers. All components description are mentioned on Boards for easy understanding in installation, 600w and 800W Amplifier boards are specially designed for outdoor sound systems, only experts can install them. (not recommended for beginners).DimmensionsTDA7388 Board: 3.5 inch x 2 inch2.1 TDA2030 Board: 4.5 inch x 2.6 inch2.1 TDA2030 & D1047 Board: 6.6 inch x 3.5 inchD1047 200W Setreo Board: 8.5 inch x 4.5 inchNPN PNP 4 Paired transistors 600W Stereo Board: 8.5 inch x 3.9 inchNPN PNP 6 Paired transistors 800W Stereo Board: 17.7 inch x 4.5 inch
LA4440 BTL 19W+19W Stereo Amplifier Board without ICs Kit
LA4440 12V pure DC power amplifier board parts level after 2 19W+19W dual channel electronic DIY Kit
Boot without current shock, high signal-to-noise ratio, no ears close to the speakers can hardly hear the noise input conditions; Sound great, high fine, soft, fully, no obvious harsh, bass strong, full, strong, and freely .Recently saw a few customers said calorific value is big, may be not the cause of the radiator or radiator small, to inform customers: the board will be required to have appropriate to the size of the radiator (small) appropriate big unfavorable
ICs and heat sinks are not included in kit.
Low Pass Filter Subwoofer Preamplifier LPF Board
- Supply voltage: Dual DC Type I: 12V+12V Type II: 25V+25V
- Frequency range: 22Hz-300Hz
- Audio input: mono or two channels
- Audio output: monaural
- Board size: Type I: 4.3x5cmm, thickness: 1.6mm
- Net weight of the plate Finished: 30g
MP3 Bluetooth Stereo amplifier XY-BT-mini Circuit Board Module
- Model Number: MP3 Bluetooth Decoder Board
- Power Supply: 3.7-5V
- SNR: 90dB
- THD + N: -70dB
- Crosstalk: -86dB
- DNR: 91dB
- Support Profile: A2DP / AVCTP / AVDTP / AVRCP / HFP
- LOS: more than the 15m
- USB-powered Universal Micro- USB 5V power supply
- 3.7-5V Supply Pad External 3.7-5V lithium battery power conversion
- LED indicator Bluetooth mode long blue light
- 3.5mm stereo o interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
- Color: Red, Black
- Material: PC + Metal
PAM8403 5V Power Audio Amplifier Board Module 2 Channel 3W + 3W Volume Control
- Model: PAM8403 amplifier module.
- With power ON-OFF & volume control button.
- Good sound quality
- Super mini design allows it to be easily placed in a variety of digital products.
- Filterless, Low Quiescent Current and Low EMI
- Can use the computer USB port, USB power bank, or a mobile phone charger to supply the 5V support power
- Battery power can also be used 3-5V
- Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω or 8Ω speaker load and 5V power supply
- CMOS class D amplifier design for high efficiency and low cost
- The noise-canceling circuit built into the amplifier board
- Power on / off without popping noise
- The module has short-circuited current protection, under-voltage lockout, and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)
- Operating voltage: 2.5V-5.5V
- Speaker Load: 4-8 Ohms
- Length: 29mm
- Width: 20mm
- The overall height after installation is about 16mm.
PAM8610 15W + 15W Two Channel Stereo Class D Amplifier Board
1. Supply voltage: DC 7V-15V
2. Output power: 10w + 10w (8 load)
3. Efficiency: 90%
4. Shutdown Current: 4uA
5. Quiescent current; 20mA
6. SNR: 86%
7. Total harmonic distortion: 5W / 1KHz / 8 —- 0.1%
8. Frequency range: 20Hz-20KHz
9. Input impedance: 15K
10. Output Impedance: 4-8
11. Amplifier board size: 30mm * 25mm * 2.5mm
1. The power supply voltage limit is 16.5V, do not use more than this voltage.
2. The power supply is recommended for a 12v, 3A power supply filter better
3. 4-8 inch stereo speakers recommended.
4. Do not short-circuit the audio output to each other or short to ground.
5. Carefully check before electricity, and ensure wiring is correct before electricity.
PT2399 Echo board Audio Microphone Preamplifier Reverberation Echo sound
- Product model: 4-Channel Echo Board
- Working Voltage: DC 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: mono
- Input: AUX + four Microphones
- Frequency response range: 25hz~17KHZ
- Size: 218*54*25mm
- Weight: 75g
- Notice: Only can used for moving-coil microphone
PT2399 Echo Microphone Bass Tone Treble Pre Amplifier Board Karaoke Reverb Kit
- Product model: SK177
- Working Voltage: Dual DC 12V + 12V
- Reverberation chips: PT2399
- former op-amp: JRC4558
- output channel: Stereo
- Input: AUX + two Microphones
- Frequency response range:25hz~17KHZ
- Size:15CM X 5.4CM
- Weight:75g
- Notice: Only can used for moving-coil microphone
PT2399 Karaoke Kit Microphone Board Reverberation Echo Sound Circuit
- PT2399 Microphone Karaoke board
- Reverberation Echo sound
- Double electric PT2399 reverberation board
- CMOS Technology
- Auto Reset Function
- Low Noise, No<-90dBV Typical
- Low Distortion, THD<0.5% Typical
- External Adjustable VCO
- High sensitivity
- Low power consumption
- Size 7.5*4*2.2cm
TDA2030 2.1 Channel 54 Watts Audio Amplifier Board Subwoofer
- Product Name: 2.1 Channel Circuit TDA2030 54 Watts Audio Amplifier Board Subwoofer
- Chip Type: Class AB
- Chip model: TDA2030 & JRC4558
- Supply voltage: 12+12 VOLTS AC
- Output channel: 2.1 channel
- Output power: 18W+18W+18W
- Power efficiency: over 90%
- Impedance: 4Ω to 8Ω (Use 4Ω for Double Power)
- Frequency response: 20Hz to 2000Hz
- Woofer Frequency response: 20Hz to 250Hz
- Size: 11*6.5*4cm
TDA2030 TDA2030A 15W Mono Audio Amplifier Board Module
- On-board audio amplifier chip TDA2030A
- Mono 15W Amplifier Circuit Design
- On-board speaker terminal block
- On-board 10K adjustable resistance, you can adjust the amplified volume
- Onboard power indicator
- The main board has pins leads, you can directly input audio signal (GND, IN)
- The working voltage: 6 ~ 15V
- Board size: 32 (mm) x24 (mm)
TDA7297 15W+15W Audio Amplifier Module
- 100% brand new and high quality
- Working voltage: 9 to 15 v
- The on-board TDA7297 audio power amplifier chip. double-channel 15W+15W
- The board size: is 55 (mm) x 55 (mm)
- The onboard TDA7297 audio power amplifier chip, double channel 15W+15W, speaker for 4-8 10-50W use
- main pin has LED chips, convenient external device control,
- Onboard potentiometer, can adjust the volume of output size
- Support for DC, terminals, pin 3 power supply input mode, the default for the DC,
TEA2025 2.1 Channel 6W+6W+10W Audio Amplifier Board
- Amplifier chip: TEA2025B
- Channel: 2.1 channels
- Input voltage: AC 6V or DC 6V-9V
- Output rated power: 6W+6W+10W
- Speaker impedance and size: 4-8Ohm (3 – 5 inch)