MUSIC HALL HA25.3 HYBRID TUBE 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)