Ok...I know these are a little hard to find. This one is used, and it has served me well the past several years. I recently replace it with a Cafe Walter which is a little smaller and lighter so suits my needs better.

This lil baby is both a fine headphone amp, and a real nice preamp. It can drive a pwr amp nicely or can be inserted to an fx return to give your "old" amp a new voice. Made by SWR's Steve Rabe it definitely has a clean "west coast" sound (squeaky clean, in fact)--think the SWR kinda sound without the enhancer/mid-scoop. Three band eq, dual discrete inputs, aux send, stereo/mono aux return, line out and dual headphone outs (each with own vol cntrl). Runs on two 9v batts:
Power source: Dual 9 volt batteries. Over 50 hours life expectancy under normal use. Frequency Response: -3dB from 30Hz to 60KHz Distortion: Preamp/Line Out: 0.008% @ 1KHz, +4dB Headphone Amp: 0.06% @ 1KHz, +4dB @ 75 Ohms Noise: -85dB typical (Tone Controls in "flat" position) Maximum Gain: 7.5X (17.5dB) Maximum Input Level: 2 volts RMS Input Impedance: Hi & Lo Inputs: 3.9 Meg ohms Left and Right Mix In inputs: 20K ohms minimum Maximum Output: Preamp/Line Out only: 3.2 volts RMS Headphone Out, 75 Ohms Impedance: 2.2 volts RMS (65 milliwatts) Output Impedance: Line Out, Auxiliary Send: 100 ohms Hi and Lo Inputs Gain Difference: The Low input has 3.5dB less gain. Resistors: 1%, 1/4 watt. Capacitors: Mylar (German Wima) Chassis: Steel, powder coated. Dimensions: 6.7" W x 1.75"H x 6"D Weight: 2 lbs., 3 oz.

Pretty cool little unit...has some cosmetic scars from trying to squeeze a chasis which is "just" bigger than a single rack space into a single rack space, but fully functional.

from the defucnt Raven Labs site:
The PHA-1 is a professional unit that can be used as a headphone practice amp, versatile preamp, or to create your own mix in the studio. The PHA-1 will allow up to two players to plug in and practice together while monitoring their sound via the dual stereo headphone jacks. Using the patch chord provided, a stereo source (such as a portable CD player or cassette) can be blended into the overall sound. The left and right mix volumes adjust the levels of the external source, providing the ultimate environment for silent rehearsing, solo or with a fellow musician. Make sure you are in key by hooking up a tuner to the Auxiliary send. The sound of your instrument can be tailored using the 3 band EQ. Immediately noticable will be the sound quality, dynamic range and lack of annoying hiss. The PHA-1 will faithfully reproduce anything from a 5 string bass to the variety of sounds from a synthesizer. Are you done practicing and ready for the gig? The PHA-1 makes the ideal buffer between your instrument and amp. The high input impedance assures that ALL of you instruments tonal characteristics reach your audience. As well, the PHA-1 will provide additional gain and tone adjustments. The Auxiliary send and Stereo mix inputs can now act as a side chain effects loop. Being on a "side chain" insures the integrity of the natural sound of your instrument, while lowering the overall noise created by your effects unit. Use the Line Out to send the signal to your amplifier. The PHA-1 is powered by a pair of 9 volt batteries. Battery installation is easy using the battery compartment on the outside of the chassis. No "unassembly" is required. Battery life will be around 50 hours. Each unit comes with a 3 year guarantee against parts and workmanship.

$150 plus shipping........

Max

Edited by Max Valentino (02/29/08 07:51 AM)
_________________________
...it's not the arrow, it's the Indian.