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Dual op amp to single op amp direct plug to chip adapter board finished circuit boardCheck Product

Dual op amp to single op amp d...

$2.76
The preamplifier microcomputer of the audio amplifier processes the volume control panel to adjust the sound remote control volume.Check Product

The preamplifier microcomputer...

$4.77
CD2399 Microphone Microphone Preamplifier Board with Karaoke Reverb Dynamic Electret Microphone UniversalCheck Product

CD2399 Microphone Microphone P...

$6.45
Bile preamplifier bile duct electronic tube dedicated high voltage for power amplifier filament filter stabilized power supply board kitCheck Product

Bile preamplifier bile duct el...

$10.69
M65831 T62M0001A Karaoke reverb board tone front board high and low bass adjustment DC 12V power supplyCheck Product

M65831 T62M0001A Karaoke rever...

$28.76
NJM2150 tone board front signal BBE sound effect exciter improves high and low bass clarity JRC2150Check Product

NJM2150 tone board front signa...

$4.21
Remote control volume-Audio amplifier preamplifier DIY microcomputer volume control board (automatically adjusts the sound when turned on)Check Product

Remote control volume-Audio am...

$11.58
Audio two-way input computer audio source two-in-one mixer car headphone audio common ground noise isolatorCheck Product

Audio two-way input computer a...

$19.83
hifi grade LM1036N tone board with NE5532 preamplifier high and low bass adjustment balance adjustment amplification board moduleCheck Product

hifi grade LM1036N tone board ...

$13.10
1969M FET power amplifier board black gold version bold PK300B amplifier super 1875LM3886Check Product

1969M FET power amplifier boar...

$12.25
Yamaha power amplifier full-range pure bass balanced stereo gain BTL bridge fever preamp effect input boardCheck Product

Yamaha power amplifier full-ra...

$20.95
HIFI audiophile grade AD828 tone board with superior effect to NE5532 single power supply potentiometer fixed separate versionCheck Product

HIFI audiophile grade AD828 to...

$6.22
A1 preamp amplifier tone boardCheck Product

A1 preamp amplifier tone board...

$14.93
HIFI fever LM1036 front-stage high and low potentiometer adjusts the high-fidelity amplifier audio tone front panelCheck Product

HIFI fever LM1036 front-stage ...

$9.12
Reference Ming NaimNAC 42-line single-ended pure Class A front-end board single power supply kit finished PCB blank boardCheck Product

Reference Ming NaimNAC 42-line...

$3.77
Six-link potentiometer Six-link potentiometer with PCB board 5 1 amplifier volume control board wiringCheck Product

Six-link potentiometer Six-lin...

$4.21
Balanced preamp unbalanced to balanced balanced to unbalanced RCA to XLR board kitCheck Product

Balanced preamp unbalanced to ...

$9.35
Pipe amplifier accessories power supply LED indicator light signal light with 6 3V0 15A bayonet small light bulbsCheck Product

Pipe amplifier accessories pow...

$2.76
30x22mm pure aluminum alloy solid knob volume potentiometer HIFI audio amplifier tone knurled knobCheck Product

30x22mm pure aluminum alloy so...

$4.48
Sound-absorbing cotton acoustic sponge audio-visual room soundproof piano room recording studio studio bass trap audio-visual room broadcast processingCheck Product

Sound-absorbing cotton acousti...

$3.21
AD827JN power amplifier board front stage M1 Class A op amp tuning board fever super 5532 front high school bass adjustmentCheck Product

AD827JN power amplifier board ...

$6.00
3-in and 1-out audio source switcher 3-in and 1-out bidirectional 1-in and 3-out audio signal switcher remote control switchingCheck Product

3-in and 1-out audio source sw...

$33.22
Fever-grade HIFI dual power supply PT2399 microphone amplification digital echo reverberation board KTV karaoke delayCheck Product

Fever-grade HIFI dual power su...

$6.89
TEA5711 radio board high sensitivity FM stereo radio boardCheck Product

TEA5711 radio board high sensi...

$2.32
ALPS power amplifier front and rear stage volume potentiometer Alps 16 27 type DAC sound source adjustment board PCBCheck Product

ALPS power amplifier front and...

$3.77
LM1894 noise reduction circuit DNR dynamic noise reduction circuitCheck Product

LM1894 noise reduction circuit...

$6.89
AD828 preamp board HIFI power amplifier tone board mid-bass balance amplifier board potentiometer single power supply lineCheck Product

AD828 preamp board HIFI power ...

$6.13
New product recommendation: tube 6j1 6AK5 preamp finished board tube amplifier tube preampCheck Product

New product recommendation: tu...

$21.62
Yihe M2 sounds better than A1 audiophile-grade preamp boardCheck Product

Yihe M2 sounds better than A1 ...

$10.24
Relay volume board volume controller with display remote control volume board with input switchingCheck Product

Relay volume board volume cont...

$52.19
1969M field effect tube bile 1969 amplifier board PK300B amplifier 1875 3886 small class A amplifier boardCheck Product

1969M field effect tube bile 1...

$2.88
Stereo four inputs and one output audio mixing active source mixer four in one four in and one outCheck Product

Stereo four inputs and one out...

$16.49
XH-A904 Super Bass Sound Effect Board Amplifier Preamp Tone Board Flexible and Powerful BBE2150 Sound Quality ImprovementCheck Product

XH-A904 Super Bass Sound Effec...

$5.89
Reference A1 preamp board circuit improvement preamplifier tone amplification tone board kit finished board PCB blank boardCheck Product

Reference A1 preamp board circ...

$2.99
All-gold sealed tube amplification fever single-ended transistor preamplifier finished productCheck Product

All-gold sealed tube amplifica...

$200.13
LM3886 power amplifier board Feipu sound GC listening version audiophile grade bile comparable to 1969LM1875LM4766Check Product

LM3886 power amplifier board F...

$2.83
HIFI front tone board NE5532 op amp module active filter front board power amplifier high and low tone sound boardCheck Product

HIFI front tone board NE5532 o...

$16.47
Suitable for Microlab M-200 computer speaker audio 2 1 subwoofer desktop small speaker amplifier boardCheck Product

Suitable for Microlab M-200 co...

$6.45
Huachengshengs new Bluetooth 5 0 subwoofer 2 1 three-channel high-fidelity power amplifier board can be equipped with a USB flash drive AUX remote controlCheck Product

Huachengshengs new Bluetooth 5...

$10.89
Two-channel stereo balanced input gain BTL bridge fever amplifier preamplifier effect amplifier input boardCheck Product

Two-channel stereo balanced in...

$15.37