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Showing 37–72 of 55 results

1% off
Music A1 Preamp Board AD827/OPA2604/MJSE02 Music A1 Preamp Board AD827/OPA2604/MJSE02

Music A1 Preamp Board AD827/OPA2604/MJSE02

$17.81$17.99

40% off
DIY kits HIFI Pre amplifier Passive Tone Board Bass Treble Volume Control Preamp Board diy electronics DIY kits HIFI Pre amplifier Passive Tone Board Bass Treble Volume Control Preamp Board diy electronics

DIY kits HIFI Pre amplifier Passive Tone Board Bass Treble Volume Control Preamp Board diy electronics

$2.15$3.59

6 sold
1% off
Preamp/headphone Amplifier/small Signal Circuit/preamplifier Dedicated Protection Circuit Board WZ-42

Preamp/headphone Amplifier/small Signal Circuit/preamplifier Dedicated Protection Circuit Board WZ-42

$15.70$15.86

1% off
Half LF256Hx2 Gold Seal Single Op Amp Pre-stage DC Amplifier Finished Board, Mellow and Delicate Tone Half LF256Hx2 Gold Seal Single Op Amp Pre-stage DC Amplifier Finished Board, Mellow and Delicate Tone

Half LF256Hx2 Gold Seal Single Op Amp Pre-stage DC Amplifier Finished Board, Mellow and Delicate Tone

$18.01$18.19

Fever 6J1 Tube Pre-amplifier Amplifier Amp Buffer Effect Diy Kit Finished Product Fever 6J1 Tube Pre-amplifier Amplifier Amp Buffer Effect Diy Kit Finished Product

Fever 6J1 Tube Pre-amplifier Amplifier Amp Buffer Effect Diy Kit Finished Product

$9.35$9.35

10% off
115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

$120.16$133.51

3 sold
1% off
Stereo Two-channel 7-segment Equalizer Board, Seven-segment EQ Board, Tone Preamp Board Stereo Two-channel 7-segment Equalizer Board, Seven-segment EQ Board, Tone Preamp Board

Stereo Two-channel 7-segment Equalizer Board, Seven-segment EQ Board, Tone Preamp Board

$12.23$12.35

2% off
115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

$117.60$120.00

31% off
DC12-16V Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater For J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 DC12-16V Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater For J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5

DC12-16V Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater For J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5

$90.56$131.25

1% off
PREAMP 9 Single-ended Pure Class A Transistor Preamplifier PREAMP 9 Single-ended Pure Class A Transistor Preamplifier

PREAMP 9 Single-ended Pure Class A Transistor Preamplifier

$15.81$15.97

MAX9812 Electret Microphone Microphone Microphone Amplifier Board Voice Module Pickup Pre-stage MAX9812 Electret Microphone Microphone Microphone Amplifier Board Voice Module Pickup Pre-stage

MAX9812 Electret Microphone Microphone Microphone Amplifier Board Voice Module Pickup Pre-stage

$10.50$10.50

1% off
Fever Passive Preamp Tone Finished Board, Strong Stereo Sound, No Need for Power Supply Preamp Board

Fever Passive Preamp Tone Finished Board, Strong Stereo Sound, No Need for Power Supply Preamp Board

$11.59$11.71

XH-M546 Pre-set Pre-stage TPA3116D2 Dual-channel Ultra-high-power Digital Power Amplifier Board 150W*2 XH-M546 Pre-set Pre-stage TPA3116D2 Dual-channel Ultra-high-power Digital Power Amplifier Board 150W*2

XH-M546 Pre-set Pre-stage TPA3116D2 Dual-channel Ultra-high-power Digital Power Amplifier Board 150W*2

$22.53$22.53

1% off
OPA2604 Pre-stage 3 Times DC Amplified Finished Board, Transparent Sound, Also Suitable for Other High-end Op Amps OPA2604 Pre-stage 3 Times DC Amplified Finished Board, Transparent Sound, Also Suitable for Other High-end Op Amps

OPA2604 Pre-stage 3 Times DC Amplified Finished Board, Transparent Sound, Also Suitable for Other High-end Op Amps

$17.43$17.61

1% off
Diy Electric Guitar Amp Preamp Tuning Board Driver Overload Distortion Preamp Board Diy Electric Guitar Amp Preamp Tuning Board Driver Overload Distortion Preamp Board

Diy Electric Guitar Amp Preamp Tuning Board Driver Overload Distortion Preamp Board

$29.70$30.00

9 sold
50% off
NE5532 Preamplifier music audio signal Pre amp amplifier 20db gain RCA 3.5MM Headphone phone sound Volume Control dc 12v NE5532 Preamplifier music audio signal Pre amp amplifier 20db gain RCA 3.5MM Headphone phone sound Volume Control dc 12v

NE5532 Preamplifier music audio signal Pre amp amplifier 20db gain RCA 3.5MM Headphone phone sound Volume Control dc 12v

$83.18$166.36

14 sold
1% off
Power Amplifier/preamp/headphone Amplifier with Dynamic Compression VU Meter Driver Board, Professional Driver Chip BA6138 Power Amplifier/preamp/headphone Amplifier with Dynamic Compression VU Meter Driver Board, Professional Driver Chip BA6138

Power Amplifier/preamp/headphone Amplifier with Dynamic Compression VU Meter Driver Board, Professional Driver Chip BA6138

$13.51$13.65

2 Band Active Bass Guitar EQ Equalizer Preamp Circuit Pickup Black 2 Band Active Bass Guitar EQ Equalizer Preamp Circuit Pickup Black

2 Band Active Bass Guitar EQ Equalizer Preamp Circuit Pickup Black

$8.60$8.60

3 sold
1% off
Music A1 Preamp Board AD827/OPA2604/MJSE02 Music A1 Preamp Board AD827/OPA2604/MJSE02

Music A1 Preamp Board AD827/OPA2604/MJSE02

$17.81 $17.99

Categories: Tools, Tool Parts

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40% off
DIY kits HIFI Pre amplifier Passive Tone Board Bass Treble Volume Control Preamp Board diy electronics DIY kits HIFI Pre amplifier Passive Tone Board Bass Treble Volume Control Preamp Board diy electronics

DIY kits HIFI Pre amplifier Passive Tone Board Bass Treble Volume Control Preamp Board diy electronics

$2.15 $3.59

6 sold

Categories: Tools, Tool Parts

Buy Now
1% off
Preamp/headphone Amplifier/small Signal Circuit/preamplifier Dedicated Protection Circuit Board WZ-42

Preamp/headphone Amplifier/small Signal Circuit/preamplifier Dedicated Protection Circuit Board WZ-42

$15.70 $15.86

Categories: Tools, Tool Parts

Buy Now
1% off
Half LF256Hx2 Gold Seal Single Op Amp Pre-stage DC Amplifier Finished Board, Mellow and Delicate Tone Half LF256Hx2 Gold Seal Single Op Amp Pre-stage DC Amplifier Finished Board, Mellow and Delicate Tone

Half LF256Hx2 Gold Seal Single Op Amp Pre-stage DC Amplifier Finished Board, Mellow and Delicate Tone

$18.01 $18.19

Categories: Tools, Tool Parts

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Fever 6J1 Tube Pre-amplifier Amplifier Amp Buffer Effect Diy Kit Finished Product Fever 6J1 Tube Pre-amplifier Amplifier Amp Buffer Effect Diy Kit Finished Product

Fever 6J1 Tube Pre-amplifier Amplifier Amp Buffer Effect Diy Kit Finished Product

$9.35 $9.35

Categories: Tools, Tool Parts

Buy Now
10% off
115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

$120.16 $133.51

3 sold

Categories: Tools, Tool Parts

Buy Now
1% off
Stereo Two-channel 7-segment Equalizer Board, Seven-segment EQ Board, Tone Preamp Board Stereo Two-channel 7-segment Equalizer Board, Seven-segment EQ Board, Tone Preamp Board

Stereo Two-channel 7-segment Equalizer Board, Seven-segment EQ Board, Tone Preamp Board

$12.23 $12.35

Categories: Tools, Tool Parts

Buy Now
2% off
115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

115-230V Audio Transformer R Type 35W 220V × 2 + 6.3V × 2 R Cattle Power Transformer Tube Preamp

$117.60 $120.00

Categories: Tools, Tool Parts

Buy Now
31% off
DC12-16V Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater For J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 DC12-16V Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater For J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5

DC12-16V Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater For J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5

$90.56 $131.25

Categories: Tools, Tool Parts

Buy Now
1% off
PREAMP 9 Single-ended Pure Class A Transistor Preamplifier PREAMP 9 Single-ended Pure Class A Transistor Preamplifier

PREAMP 9 Single-ended Pure Class A Transistor Preamplifier

$15.81 $15.97

Categories: Tools, Tool Parts

Buy Now
MAX9812 Electret Microphone Microphone Microphone Amplifier Board Voice Module Pickup Pre-stage MAX9812 Electret Microphone Microphone Microphone Amplifier Board Voice Module Pickup Pre-stage

MAX9812 Electret Microphone Microphone Microphone Amplifier Board Voice Module Pickup Pre-stage

$10.50 $10.50

Categories: Tools, Tool Parts

Buy Now
1% off
Fever Passive Preamp Tone Finished Board, Strong Stereo Sound, No Need for Power Supply Preamp Board

Fever Passive Preamp Tone Finished Board, Strong Stereo Sound, No Need for Power Supply Preamp Board

$11.59 $11.71

Categories: Tools, Tool Parts

Buy Now
XH-M546 Pre-set Pre-stage TPA3116D2 Dual-channel Ultra-high-power Digital Power Amplifier Board 150W*2 XH-M546 Pre-set Pre-stage TPA3116D2 Dual-channel Ultra-high-power Digital Power Amplifier Board 150W*2

XH-M546 Pre-set Pre-stage TPA3116D2 Dual-channel Ultra-high-power Digital Power Amplifier Board 150W*2

$22.53 $22.53

Categories: Tools, Tool Parts

Buy Now
1% off
OPA2604 Pre-stage 3 Times DC Amplified Finished Board, Transparent Sound, Also Suitable for Other High-end Op Amps OPA2604 Pre-stage 3 Times DC Amplified Finished Board, Transparent Sound, Also Suitable for Other High-end Op Amps

OPA2604 Pre-stage 3 Times DC Amplified Finished Board, Transparent Sound, Also Suitable for Other High-end Op Amps

$17.43 $17.61

Categories: Tools, Tool Parts

Buy Now
1% off
Diy Electric Guitar Amp Preamp Tuning Board Driver Overload Distortion Preamp Board Diy Electric Guitar Amp Preamp Tuning Board Driver Overload Distortion Preamp Board

Diy Electric Guitar Amp Preamp Tuning Board Driver Overload Distortion Preamp Board

$29.70 $30.00

9 sold

Categories: Tools, Tool Parts

Buy Now
50% off
NE5532 Preamplifier music audio signal Pre amp amplifier 20db gain RCA 3.5MM Headphone phone sound Volume Control dc 12v NE5532 Preamplifier music audio signal Pre amp amplifier 20db gain RCA 3.5MM Headphone phone sound Volume Control dc 12v

NE5532 Preamplifier music audio signal Pre amp amplifier 20db gain RCA 3.5MM Headphone phone sound Volume Control dc 12v

$83.18 $166.36

14 sold

Categories: Tools, Tool Parts

Buy Now
1% off
Power Amplifier/preamp/headphone Amplifier with Dynamic Compression VU Meter Driver Board, Professional Driver Chip BA6138 Power Amplifier/preamp/headphone Amplifier with Dynamic Compression VU Meter Driver Board, Professional Driver Chip BA6138

Power Amplifier/preamp/headphone Amplifier with Dynamic Compression VU Meter Driver Board, Professional Driver Chip BA6138

$13.51 $13.65

Categories: Tools, Tool Parts

Buy Now
2 Band Active Bass Guitar EQ Equalizer Preamp Circuit Pickup Black 2 Band Active Bass Guitar EQ Equalizer Preamp Circuit Pickup Black

2 Band Active Bass Guitar EQ Equalizer Preamp Circuit Pickup Black

$8.60 $8.60

3 sold

Categories: Tools, Tool Parts

Buy Now