I just dig mine so much I had to post.
If your looking to get more out of your 2/ch rig and an honest evaluation of how your rig truly sounds. Check out this auction on Audiogon. No affil.
The starting bid is very reasonable as I paid $100 more and still got a very good deal. If you want clean transparency and killer bass from a line drive don't pass this up. You must have a smooth front end on your rig or this will make a harsh sounding system worse. It also has balanced inputs and outputs. This was Parasounds best 2/ch pre and smokes all of that HALO crap.
Here are the specs.
Complementary MOSFETs Gold-Plated Audiophile Jacks Noted John Curl Design
All Relay Switching 20 Gold-Clad Precision Relays Gold-Clad FR4 Circuit Boards
Audiophile-Grade Capacitors 92,000 uF Filter Bank Dual-Mono Topology
Pure Class A Discrete Circuit Direct Input Function Silver-Plated Wiring
DC Servo Direct Coupled Circuit High Current Design Fully Remote Controlled
IEC Removable AC Cord Motorized Alps Volume Control Pure Silver XLR Input Wire
Balanced Inputs and Outputs 0-180o Polarity Invert Control Vishay Resistors in Critical Areas
5 Hz - 150 kHz, +0/-2 dB, full output
Total Harmonic Distortion
<= 0.003%, 1 kHz
<= 0.005%, 20 kHz
> 10 V before clipping
Unbalanced inputs 30 k ohms, ±5 %
Balanced inputs 30 k ohms per leg, ±5%
Line outputs <= 60 ohms
Recommended line load >= 600 ohms
Recommended headphone >= 8 ohms
All inputs 150 mV, ±5%
Max Input Level 10.5 V before clipping
>110 dB, A weighted, full output
>90 dB, unweighted, full output
>110 dB, < 10 kHz, full output
>100 dB, 20 kHz, full output
<= 0.2 dB
19" W x 3-1/2" H (4-1/8" high with feet) x 15-3/4"
110 V - 120 V AC, 12 W; may be rewired for 220 V - 240 V, 50 Hz