708B is a tube headphone amplifier that can also be used as a tube pre-amplifier.

With an excellent circuit and sophisticated components, the 708B amplifier delivers superior performance in sound quality and tone. Through practical audition, this amplifier proves to be dynamic, highly analytical, with clear and refreshing treble, and a pleasant overall experience. The mid-frequency range is full and rich in voice, while the low-frequency response is full and flexible.

Technical Specification:

• Output Tube : rectifier 6Z4x1, driver 6N11 x 2, 6N3 x1
• Input Impedance : 100k ohms (HIFI EXQUIS co limited)
• Preamp output impedance : 600 ohms ;
• Headphone output impedance :32 - 600 ohms ( recommended use high impedance headphones )
• Harmonic Distortion : less than 0.01%
• Headphone amp output power :
- 500mW x2 (32 ohm) (HIFI EXQUIS co limited)
- 300mW x2 (300 ohm)
- 250mW x2 (600 ohm)
• Frequency: 20Hz-30KHz +/-1db
• Signal/Noise Ratio : 89dB
• Input Jack : 2 pairs
• Output Jack : 1 pair
• Size Dimension : Width 180mm x Height 80mm x Depth 270mm
• Voltage is switchable for 115 and 230V.