Shengya HPA-1 Hifi tube Hybrid Headphone Amplifier

Shengya HPA-1 Hifi tube Hybrid Headphone Amplifier

Rating: 5.0  |  0 reviews |  Write a review
Model: HPA-1



Add to Cart:
Shipping Weight: 5Kg 5 Units in Stock Manufactured by: Shengya
Ask a question
1.As the amp, the bile pure taste, warm and soft sound
2.Can also be used as a pre-class, small size, does not occupy
3.When the input impedance is very high, the output impedance is very low, easy to drive a variety of impedance headphones
4.Both sides of the aluminum cooling function to ensure long-term stability of the machine

1.The use of tube voltage amplifier circuit directly drive the transistor current amplifier circuit. So that the sound performance of both tube warm, pure thick, delicate features, there are transistors fresh, bright, strong driving force characteristics, the two advantages to play most vividly.
2.High-voltage power supply using field-effect transistor and regulator IC two important devices, high voltage stability, low AC ripple, the local sound stability and SNR play an important role.
3.Power transformer for the special R-type transformers. The advantages of the transformer magnetic flux leakage is small, sound bile taste, no vibration noise.
4.Tube cross-connect and back to connect the capacitor for the German WIMA brand x audio dedicated capacitors, regardless of sound and sound quality and sound field has a good performance.
5.Volume control potentiometer for the Japanese ALPS brand, with a reliable and durable, low noise, good sound, two-channel error small features.
6.Current amplifier consists of field effect transistors and bipolar transistors composed of quasi-IGBT non-negative feedback DC amplifier circuit, which has the advantage of high input impedance and output impedance is very low, easy to drive a variety of impedance headphones.
7.Because the transistor current amplifier for the A class of working condition, the work of heat is relatively large, both sides of the chassis aluminum heat treatment to ensure that the machine long-term work.

Frequency response: 20 Hz - 20 kHz +/- 0.5 dB
Rated output power: 400 mW (300 ohms), 1,75 W (32 ohms)
Output voltage: 2V (max. 4V)
Harmonic distortion: < 0.1% (1 kHz, 100 mW)
Input sensitivity: 600mV
signal to noise ratio:> 90dB
Input impedance: 47 kOhm
Input: 2 x RCA (CD / Aux selection) 1 x RCA Pre Out, 1 x Headphone jack 6,3 mm
Weight: 5kg
Volume (WxHxD): 160 x 265 x 210 mm
Vacuum Tube: 2 x 12AX7, 4 Level Tube dimmer switcher