I have an Alto HPA6 headphone amp. I traded some stuff to a local store for it and just haven't used it.
Here is a link to info and a picture
http://www.directproaudio.com/produc...directid=13538
* Professional, universal headphone amplification system for studio and live sound applications
* 6 independent stereo high-power amplifiers in one rack unit
* Maximum audio quality - even at high volume levels
* 6 independent input/mix sections for 6 stereo mixes
* Stereo AUX IN per channel for additional signal source
* OUTPUT LEVEL control per channel
* MONO and LEFT/RIGHT MUTE buttons per channel for additional flexibility
* 3 headphone outputs per channel on front and rear panels
* Precision 4-segment LED output level display per channel
* DIRECT IN on the front panel for additional stereo signal sources
* Paralleled main outputs to chain several headphone amplifiers
* Servo-balanced, gold-plated XLR and 1/4" TRS connectors
* High-quality components and exceptionally rugged construction ensure durability
* Internal power supply
$85 shipped
