SAS Audio LabsTM
Over 48 years experience with Tubes
World's Most Natural Sounding, Accurate, Best Preamplifier:
Low Gain, High Gain Conversion Selectable:
Where Music Comes Alive TM
Bernie (spab), 11A. "I have also tested the 11A in terms of comparing the sound from my excellent cd source directly to amps versus inserting the 11A pre between. I could detect no difference whatsoever.... So, my two cents: the SAS preamps are stellar – with my 11A I hear no compression or any other alteration of the originating signal."
Bob: "Hey guys. . .if anyone's interested, I'm selling my Tram 2 preamp since my SAS B11A is so awesome...." (Tram 2 uses 45, 2A3s)
Terence: "I have been using the 11A since I received it but I didn't want to be premature in my assassment, although my initial assessments were favourable. Now, I must say that the 11A is certainly the best preamp I have ever owned, and the best I have ever heard-ss or tube. Thank you for a wonderful product, Steve."
Richard Weiner, 10A:"The SAS 10A is the most musically truthful preamp I'm aware of, and I will expand that statement by listing some of the line stages I've had in my otherwise very stable system: Herron VTSP-1, VAC CPA III, VAC Standard LE, Audio Research 3A, ARC 8, ARC 10, Mark Levinson ML-1, Levinson ML-7, Levinson ML-10A, Original Aronov PS-100 and Musical Concepts modification, Nagra PL-P, Beveridge RM-1, Rappaport, Placette Passive - there are more, but you get the point. Until I got the 10A, I struggled to make the other components live up to their potential."
Ray: "your prees are somewhat legendary in there reviews."
Welcome to SAS Audio Labs. SAS Audio Labs is a small speciality manufacturer who caters to those who wish the finest, most accurate, most natural musical reproduction in the world. Steve Sammet, an Electronics Engineer with decades of experience, developed the special proprietary listening testing setup/procedure (not dbt/abx) to test the 11A in absolute terms; not simply "voice", "audition", which leaves us no closer to the musical truth.
Near perfection in absolute terms means the 11A does not change the dynamics, tonal quality, inner detail soundstage etc. You can absolutely know that the 11A is one component that you can trust, and you can work on other weaknesses to improve your system. (My loyal customers can attest to that.) I think we all know that the audio market and forums is geared towards turnover. As one can see, I do not need to offer new models. I also build in small quantities for the highest quality.
The 11A does not need a power conditioner thanks to the 5 stage, properly designed power supply. In fact the 11A eliminates RF and EMI problems without the hassle of batteries, with their charging cycles, changing internal resistance with discharge, battery failure, and different materials in the signal path such as lead or nickel-cadmium. Check out the 11A power supply measured noise at the second stage of filtering.
The scope is set to 5 millivolts/div (5 thousands of one volt/div) because even early in the filtering circuitry, little if any RFI or EMI is present. Of course virtually zero after 5 stages. By the way, my shop is near manufacturing, and within 5 miles of at least one high powered TV station antenna etc.
For sonic consistency, critical parts are within 0,5% tolerance. No solid state regulation or solid state CCS etc.
Tube dampers, and chassis resonance control incorporated. Internal damping minimizes the need for special feet.
No cathode followers, buffer stages, or Mu circuit (all include ultra high feedback). The fewer the properly designed stages the better.
Super quality. Only one 11A has been repaired since the 11As inception in 2006, a noisy military grade resistor. Tube life approximately 28,000 hours (powered on 24/7).
The 11A comes in two configurations, with options.
Take advantage of our 30 day money back guarantee, 7 year warranty. You have nothing to lose and everything go gain. (Check out our Specials page for once in a while deals.)
Please feel free to contact Steve at firstname.lastname@example.org with any questions or comments.
Frequency Response: 0,6hz - 110khz -1db (100pf, 100k load), Gain: 8db or 20db Total Harmonic Distortion at 2 vrms: 0.015% high gain (JJ E88CC, 18db < 6SN7GTA/B) Channel Separation at 10khz: 90db typical Signal Polarity: Inverts Input Impedance: 25k ohms (50k optional) Min. Amplifier Input Impedance: 15k ohms Volume Controls: 2 Tape Loops, HT bypass: Optional Line Inputs: 3 (5, Standard version) Preamp. Outputs: 2 Tube Regulation: Yes Line Cord Length: 6 feet standard cryod Jenalabs "Basic" Power Consumption: 27 watts Power Requirements: 120 Volts AC, 50/60hz Dimensions: 19" front 4" high (with stock feet) 14 1/4" deep (counting knobs and jacks) Actual Weight: 17 lbs. Factory Direct Price B11A: $2949.00 Factory Direct Price Standard 11A: $3149.00 Factory Direct Price 1 meter "V" IC: $140.00Shipping included within the Continental USA. Outside USA, check on shipping charges.
30 day money back guarantee. Payment can be made from a Paypal account, a credit card through Paypal (do Not need a paypal account, use email@example.com for email address ), a Cashiers Check, Post Office Draft, Money Order (US dollars), or Personal Check (allow time for all checks to clear) payable to SAS Audio Labs. Normal shipping is FedEx ground unless specified differently. For second day or overnight shipping, please contact me. Guarantee/Warranty
For purchase the Basic 11A Line Preamplifier, 3 inputs and 2 outputs.
To purchase the Standard 11A Line Preamplifier, 5 inputs and 2 outputs.