Hafler HA15 Headphone Stereo Amplifier

The Hafler HA15 is a high performance analog headphone amplifier that has been meticulously designed to provide an accurate picture of the source material no matter the impedance of the headphone in use.


The design begins with a 100% discrete circuit that is completely void of IC's.

As the HA15 employs single transistors, negative feedback can be scrupulously added so that the phase cancelling effects are minimized.

Connecting to the HA15 is done using gold-plated RCA connectors that will not tarnish, thus ensuring a positive connection is maintained.

A unique Focus control allows the user to activate a matrix that simulates listening to speakers in the open air

Hafler HA15 Headphone Stereo Amplifier


Circuit: Solid state with quasi class-A output
Inputs: RCA and XLR (left/right)
Thru-puts: RCA (left/right)
Output: 1/4″ TRS Headphone
Impedance: 8 Ohm ~ 400 Ohm
Gain: 20 dB
Max Output: 3 V RMS