I’ve been using QS gear for years. That LS has a low output impedance and it will be fine with any amp. The gain is on the high side (18db). It is a no frills preamp with no balance or mono feature. If you don’t need those features then I doubt you would go wrong with the QS!
Specifications
Bandwidth | 0.1 Hz to 100 KHz +0,-3db |
IM Distortion | less than 0.08% at 1v output |
Harmonic Distortion | less than 0.08% at 1v output from 10 Hz to 40 KHz |
Gain | 18 db |
Input Impedance | 100 Kohm, 20 Hz-20 KHz |
Output Impedance | 100 ohms, 20 Hz-20 KHz |
Output Polarity | inverted |
Maximum Input | 30 volts RMS, 20 Hz-20 KHz |
Maximum Output | 60 volts RMS, 20 Hz-20 KHz |
Noise | 20 microvolts RMS residual IHF weighted noise output with gain control at minimum |
Tube Complement | 2-12AT7 |
Dimensions | 3″H, 9 1/2″D, 15″W |
Front Panel | 3 1/4″H, 17″W |
Weight | 12 lbs. |
U.S. Warranty | 3 years parts and labor Tubes 90 days |