tube stereo preamplifier,vacuum tube stereo preamplifiers
SAS Audio Labs TM
48 years experience with Tubes
10A Vacuum Tube Stereo Preamplifier
Where Music Comes Alive TM
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What Makes SAS Audio Preamplifiers Different? | 7A Preamplifier Kit | 11A Vacuum Tube Stereo Preamplifier
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Bound for Sound, Issue #163 SAS Audio 10A Tube Preamp is one of only 3 listed in "Exceptional Merit" catagory.
"I expecially feel that way about the SAS 10A, a tube unit of moderate expense that simply stomps a mud hole in just about every active unit made - regardless of price."
Rich Weiner: "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." The 10A has been Rich's reference preamp for over 4 years. However, Richard then purchased the 11A preamplifier as his reference preamplifier.
10A Vacuum Tube Stereo Preamplifier Features, Specs, Shopping Cart Below:
Welcome to SAS Audio Labs. The 10A tube preamplifiers are known for pure, emotional, unadulterated, lifelike accuracy. This is one serious preamplifier.
SAS Audio offers two models, the "Basic" 10A and "Standard" versions. Both are identical except the "Basic" has 3 inputs while the "Standard" has 5 inputs. Swapping out tubes requires simply removing the cover. One or more the inputs can be setup for lower gain and a home theatre bypass can be added upon request. As seen in the reviews, this is one serious preamplifier.
10A tube preamplifier Features:
- Can drive 20k and higher input impedance amplifiers.
- Vacuum tube regulation in the high voltage supply; NO solid state regulators or solid state current sources.
- The tubes I use have approx 1/4th (-15 to -18db less) harmonic distortion than a nos 6sn7 or 5687 tube, measured, not figured from the generalized tube curves.
- Simplicity of the signal path. "Lead to lead connecting" (copyright©) whenever possible.
- No frequency dependent musical/signal feedback from stage to stage through the power supply. Again cleaner music.
- Most accurate sounding parts. This results in more accurate timbre of instruments and voices.
- High quality Jenalabs 6N pure, cryogenically treated wire in the direct signal path.
- IEC receptacle for AC power cord rolling.
- A three way switch in which one can "tweek" the tonal balance for more flexibility and better synergy with one's audio system. No more take it or leave it scenario.
- A robust 5 stage power supply provides better isolation from hash and interference from/through the rectifiers, transformer and AC line, for a cleaner, more open sound.
- Power Line (AC) reversal switch. One position always sounds better. Now you can choose the correct position.
- 45 second Parallel mute function relay, not series connected and not solid state. (The mute function is designed to prevent catastrophic failure in case of power outage. I still strongly recommend the standard procedure of turning off the amplifier first, then the preamplifier.)
10A Tube Preamplifiers Guarantee and Warranty
We believe in backing our 10A tube preamplifier with a 30 day money back guarantee. Warranty, 5 years labor and parts, 1 year on tubes, from the date of purchase. (Guarantee/Warranty/Return Instructions)
10A Vacuum Tube Stereo Preamplifiers SPECIFICATIONS:
Frequency Response: 10 - 25 khz (+0, less than -.1db, 100pf, 100k load), Above 100khz -1db
Gain: 21db gain, approx.
Maximum Output Voltage:
9 vrms
Total Harmonic Distortion at 2 vrms: 0.015% or less. (typically 76 db down, No global feedback)
Signal Polarity:
Inverts
Input Impedance:
25k ohms
Min. Amplifier Input Impedance:
20k
Volume Controls:
2
Tape Loops:
1 (for dubbing etc.), None for B10A, Optional
Line Inputs:
5 (3 for basic B10A)
Preamp.Outputs:
2
Tube Regulation:
Yes
Tubes: JJ E88CC* (Superior to other E88cc/6dj8 types for low distortion.)
Line Cord Length:
6 feet standard
Power Consumption:
27 watts
Power Requirements:
120 Volts AC, 50/60hz.
Dimensions: 17 3/4" wide
19" black rack front
4" high
10 1/2" deep
Actual Weight:
14 lbs.
Shipping Weight:
(Charged 30lb rate because of dimensions)
Factory Direct Price Basic 10A:
$1595.00
Factory Direct Price Standard 10A:
$1795.00
* Each tube should have low noise and balanced sections.
Shipping and Handling costs included within the Continental USA.
To Audition or Purchase the 10A Stereo Tube Preamplifiers
Payment can be made from a Paypal account, credit card through Paypal (do Not need a paypal account: use sasaudio@omnilec.com for email address), or Postal Money Order for fastest clearance. Please allow time for Cashiers Check, Money Order (US dollars), or Personal Check to clear. Make checks payable to SAS Audio Labs. Normal shipping is DHL ground unless specified differently. Guarantee/Warranty
B10A Linestage Tube Preamplifier, $1640.00, ($45.00 Paypal fee included, non-refundable):
Standard 10A Linestage Tube Preamplifier, $1795.00 ($50.00 Paypal fee included, non-refundable):
Design and parts subject to change without notice.
SAS Audio Labs
503 W Jefferson St #2
Morton, Illinois USA 61550
TEL: (309) 263-0736
1:00 PM - 6:00 PM CST Monday - Friday
Email, sasaudio@omnilec.com
Specifications, Prices subject to change without notice.
"* tm, sas audio labs, SAS Audio Labs,
SAS AUDIO LABS, and the SAS AUDIO LABS banner are trademarks of SAS Audio Labs."
copyright©: 4-29-1997. Updated: 1-09-2012. SAS Audio Labs and all contents of this article, including graphics,
components, component layouts, any and all schematics, regulator design/circuit, "tonal balance circuitry", "lead to lead wiring" are copyrighted.
All rights reserved. No portion of this article may be reproduced without the written permission from
Steve Sammet at SAS Audio Labs. SAS Audio Labs is registered with the state of Illilnois.