2. amps-preamps
  3. 178503-114571

Which would you choose for good sounding tube preamp for an audiophile new to tubes.

I need your help guys. I would like to add a tube preamp to pair with my reference 200.2 B&K amplifier. My speakers are large ADS L1590 towers ( 90 DB efficiency rating). They were a flagship back in the day. I have had them restored by an ads tech. I am l looking at  a QUICKSILVER LINESTAGE LS PREAMPLIFIER, VTL 5.5 preamplifier, and a Sonic Frontiers SFL-1. All are currently used and on audiomart or audiogon. The Sonic Frontiers is for sale on hi-fi heaven. I purchased from them before and they check out the equipment that is preowned. My system is a little bright and dynamic sounding using the sonata B&K preamp. (There best at the time). I am looking for a little warmth in the sound and no harshness. I want some slam and afraid I will lose it if I go with tubes.  I have had success buying certain units because of the knowledge dispensed through this forum I am a member of Audiogon in good standing. Any help would be great. I appreciate the feedback. 

128x128arichison

Showing 1 response by yogiboy

yogiboy's avatar
yogiboy
5,791 posts
 

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
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