Music Hall ha25.3 Headphone Amplifier

The music hall HA25.3 headphone amplifier is designed to deliver an unparalleled musical experience to even the most discerning headphone listeners. The fully balanced tube & solid-state hybrid design makes it a standout in the world of headphone amps, while its unique ability to double as a two-input standalone tube pre-amp adds an extra layer of versatility.

On the outside, the HA25.3 may appear basic, but under the hood, it boasts a sophisticated marriage of tube pre-amp and solid-state amplification. This combination delivers the rich, robust sound of tubes along with the speed and punch of solid-state, resulting in an unparalleled musical experience that is sure to move you.

The HA25.3 is a fully balanced headphone amplifier that features 2 x line-level inputs, 2 x Philips JAN tubes (type 6112), a differential tube input amplification stage, and a discrete output buffer. It also includes 3 x headphone outputs (3.5mm, ¼ in., and balanced XLR) and 2 x analog outputs (1 pair RCA fixed and 1 pair RCA variable) for added flexibility. With its high output power, the HA25.3 delivers the best sound experience possible.

Minimum Headphone Impedance: 8 ohms
Output Power: 268mW/300ohms, 770mW/33ohms, 500mW/8ohms 340mW/8ohm – balanced
Signal To Noise Radio: -101dB (100mW/33ohm)
THD + N: <0.06% @ 100mW/33ohm
Gain: 4dB (33ohm)
Crosstalk: Better than -98dB, 100mV, 10kHz
Frequency Response: 20Hz-80kHz (+/- 0.2dB)
Input Impedance: 15kOhm
Outboard Power Supply: 18V/1000mA DC
Power Consumption: 450mA DC, 0.0W in standby
Dimensions (WxDxH): 6.7" x 6.5" 2.24" (170 x 165 x 57 mm)
Weight (Without PSU): 1.72 lbs. (780 g)