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Headphone Amplifier Kit


3.5mm AUX Digital HiFi Headphone Amplifier 8.3V/1A USB Rechargeable Portable Kit

$20.99


LM1875T Hifi 6j1 Valve Drive Power Amplifier Board Kits Headphone Amp Kits 20W

$15.92


Stereo Class A SRPP 6N5P Vacuum Tube Headphone Amplifier Kit DIY Hifi Preamp

$27.99


***NEW*** Lot of 4. SHA1C STEREO HEADPHONE AMPLIFIER KIT.

$99.00


Classic 47 Headphone Audio Amplifier Board DIY Kits AMP DC 9-24VH3 JH

$8.45


PROJECT SOLSTICE TUBE HEADPHONE AMPLIFIER / US BUILT / DIY KIT!

$229.99


G1217 PROJECT SUNRISE III TUBE HEADPHONE AMPLIFIER / PRE AMP/ DIY KIT

$229.99


AC12V 6J1 Valve Pre-amp Tube Board Headphone Amplifier+Acrylic Case DIY Kits

$6.30


PROJECT STARLIGHT TUBE / QUAD OPAMP / HEADPHONE AMPLIFIER / DIY KIT / US SELLER

$159.99


PROJECT STARLIGHT TUBE / QUAD OPAMP / HEADPHONE AMPLIFIER / DIY KIT

$159.99


Classic 47 Headphone Audio Amplifier Board DIY Kits AMP DC 9-24V YLP ce

$6.08


DIY OTL Tube Headphone Amp Kit (PCB, Case, Extras) Aikido WCF 6SN7, 6BX7

$199.99


DIY Kit Valve 621Tube Headphone Buffer Amplifier Preamp AMP Pre-Amplifier Board

$6.13


Portable 3.5mm AUX Digital HiFi Headphone Amplifier 8.3V/1A USB Rechargeable Kit

$21.11


Audio Hifi Headphone Amplifier Kit Base On SOLO Headphone Amp Diy Kits

$13.99


DIY Beta 22 Headphone Amplifier kit Genuine  AMB  β22 2 boards avoid fakes

$214.98


AC12V 6J1 Valve Pre amp Tube Board Headphone Amplifier+Acrylic DIY Kit A4D7 V3Q6

$12.31


Class A FET HIFI Headphone Amplifier Diy Kit Reference AT-HA5000 for K701 HD650

$39.78


1x DA47 Single Power Supply Portable HIFI Headphone Amplifier PCB AMP DIY Kit UE

$11.26


Lehmann AMP Headphone Amplifier Kit Board BD139 BD140 LM833

$33.34


DIY Parts Headphone Amplifier 47 pieces Amplifier DIY Kit with Case Classic

$14.95


A2-PRO Headphone Amplifier HIFI Reference Beyerdynamic A2 Headhpone AMP Kit

$99.99


Class A 6J5 Vacuum Tube Preamp Preamplifier HiFi Headphone Amplifier DIY Kits

$16.89


Portable HiFi Audio Set Headset Headphone Amplifier Metal Kit Black Brand New

$25.75


AC 12V 6J1 Valve Pre-amp Tube PreAmplifier Board Headphone Amplifier + Case

$10.55


Headphone Amplifier Board Portable Kit AMP Module Kit For Classic 47 DIY +case

$7.31


6N3*2+6Z4 Tube Amplifier + Lehmann AMP Headphone Amplifier Kit Assembled Board

$53.00


DIY Kit PASS ZEN single-end Class A Headphone amplifier 5w DC 24V

$27.25


HIFI A2 Headphone Amplifier Board DIY Kit Reference Beyerdynamic A2 Amp

$69.99


A2-PRO HiFi Headphone Amplifier DIY Kit Refer Beyerdynamic A2 AMP 110V

$99.99


AC12V 6J2 Valve Pre-amp Tube Board Headphone Amplifier+Acrylic Case DIY Kits

$9.53


PROJECT POLARIS SS HEADPHONE AMPLIFIER / PRE AMP / DIY KIT WITH ALL PARTS!

$229.99


AC12V 6J1 Valve Pre amp Tube Board Headphone Amplifier+Acrylic Case Kit DIY S6I9

$12.18


HiFi A2-PRO Professional Headphone Amplifier Refer Beyerdynamic A2 Kit DIY

$99.99