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Item specifics
  • Model Number: HV1
  • Place of Origin: CN
Product Description

 Assembled HV1 Headphone amplifier board with  ALPS pot + 30W R-core Transformer

 

                    --(base on Beyerdynamic A1) --New design

 

    The amp board Power transistor are using original ST BD139 BD140. potentiometer is ALPS Dual 50K.Opamp is ST 33078N

• effective Vp-p 23.47
  Frequency response, 20 HZ-20 KHZ (+ 0.01, 0.09),
  signal-to-noise ratio:-90 DB or below,
  the dynamic response, more than 91 DB
• total harmonic distortion (THD) : < 0.007%
• intermodulation distortion: < 0.007%
• stereo separating degree: > 88 DB (1 KHZ)

 

input Voltage: recommned AC15V-0-AC15V

 

PCB size:160X110mm

 

 

Package include:   Assembled HV1 Headphone amplifier board   X 1 (with ALPS Dual 50K potentiometer)

                         30W R-core transformer   X 1 (suitable for 115V or 230V voltage)

Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 16cm x 12cm x 5cm (6.30in x 4.72in x 1.97in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 16cm x 12cm x 5cm (6.30in x 4.72in x 1.97in)
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