class A amp HIFI headphone amplifier Q701 HD600 650     


Product advantages:

 

     
Adopt mature mainstream op amp + transistor structure, pure class A!  16~600 ohm headphones without pressure! With earphone protection circuit, original Omron relay, no switch machine shock sound! Lehman's multi-capacitor power supply design, 4 large capacitors , 6 high-frequency capacitors, linear regulated power supply circuit! ±15V power supply. OPA2604, LME49720, and LME49720 are available! Round gold-plated op amps, you can change the op amp yourself! For the transistor, the BD139-16/BD140-16 used by many famous amps is used as the power output! Original imported, suffix ‘-16’ is not a common model, it has a good linearity and layering! Built-in 0 times / 5 times / 11 times / 15 times 4 times magnification adjustment, easy to adapt to a variety of sound source front!

 

Performance parameters:

 

 

Supply voltage: AC 15V (DC can not work, can not be powered by charger or constant current power supply!) This amp is not a portable machine, there is no battery inside, you need to have power supply to work.

Output power: 320mW+320mW (600Ω) 1300mW+1300mW (32Ω) Please be sure to adjust from a small volume when using! Can't be used as a power amplifier!

Maximum output voltage swing: ±13.8V (equivalent to 27.6V)

Amplification gain: 0 times / 5 times / 11 times / 15 times (built-in jumper cap adjustment, default 11 times)

Frequency response: 2Hz~80KHz

Total harmonic distortion: <0.002%

Signal to noise ratio: >101dB

Output impedance: 47 ohms

Input terminal: analog line input (1 set of RCA, 1 3.5mm) When one set is input, the other set can be used as output!

Headphone output: 3.5mm × 1

MAHP0179-01

MAHP0179-02

MAHP0179-03

MAHP0179-04

MAHP0179-05