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DEALER AD: Atma -Sphere S-30 MK 3.3 Stereo Amplifier

Item #649359577
Info: Atma -Sphere S-30 MK 3.3 Stereo Amplifier

Asking Price:
CAD $5995.00
Payment method: Cash, Paypal, Cheque, Money Order, Money Wire, Interac/EMT
Condition: 11 - New (?)
Date Posted: Jan 01, 18 6:13pm (PST)
About Seller: C.N.Thomas Imports
cnthomas is a dealer or commercial user
Fonthill, ON
Canada
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Description

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ATMA-SPHERE S-30MK 3.3 - THE FINEST TRIODE, PURE CLASS A, STEREO VACUUM TUBE AMPLIFIER AT ANY PRICE!

A fast tight bass, warm fluid mids, super smooth highs. Very three dimensional, holographic. Very Musical.

The S-30 is the unchallenged state-of-the-art in low power vacuum tube amplifiers. With its simplicity of operation, small footprint, and all the features of our larger amps, the S-30 represents the high-water mark of compact OTL design.

For audiophiles who seek the ultimate in amplifier design and are realistic about their budget, the S-30 gives you the same precision and sound quality that Atma-Sphere is known and recognized for. Featuring automatic bias and a large VU meter, operation is elegantly simple.

And because it utilises decades-proven patented handwired circuitry, it is stable with any load and both performs and sounds better than any single-ended amplifier ever produced, let alone conventional push-pull designs. Its fully-balanced design and proven class-A triode operation make the S-30 the ideal choice for the discriminating audiophile.

• Balanced Differential Design®

• Class-A operation

• Patented Circlotronic® direct-coupled (OTL) output stage

• Dual-mono chassis construction

• Automatic bias - no adjustment needed

• Built in VU meter for tube and output monitoring

• Easily monostrapped for greatly increased power

• Uses only one gain stage for supreme clarity of sound

• Proprietary precision components used throughout

• Low-noise "star" grounding topology

• Fully hand-wired point-to-point electronics - no circuit boards!

• Stable with all input and load conditions

• Exclusively uses Octal-Triode based vacuum tubes

• Classic open chassis construction with Wrinkletex™ finish

• Three-year general coverage warranty, one year warranty on output tubes

SPECIFICATIONS

Output power

30 watts per channel into 8 Ω load

45 watts per channel into 16 Ω load

Impedance

Input Impedance: 100 KΩ single-ended, 200 KΩ balanced

Output Impedance: 7 Ω

Input

3 V sensitivity

RCA and XLR true balanced input

Tube complement

10 x 6AS7G output tube

6 x 6SN7 driver tube

Gain

23dB ( for 8 Ω )

Power Bandwidth

2Hz-75KHz within ½ dB

Frequency response

( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable

1Hz-200KHz within 3 dB

Hum and noise

Less than -75db below 1 watt, -95db below full power (30 watts)

Distortion

Total Harmonic Distortion ( THD ) typically 1% at full power

Intermodulation ( IM ) distortion typically under .04% at full power

Phase shift less than 1° @ 20KHz

Output section risetime

600 V/µs

Feedback

2 dB

Warranty

Three year general coverage

One year for output tubes


Balanced Differential Design®
Class-A operation
Patented Circlotronic® direct-coupled (OTL) output stage
Dual-mono chassis construction
Automatic bias - no adjustment needed
Built in VU meter for tube and output monitoring
Easily monostrapped for greatly increased power
Uses only one gain stage for supreme clarity of sound
Proprietary precision components used throughout
Low-noise "star" grounding topology
Fully hand-wired point-to-point electronics - no circuit boards!
Stable with all input and load conditions
Exclusively uses Octal-Triode based vacuum tubes
Classic open chassis construction with Wrinkletex™ finish
Three-year general coverage warranty, one year warranty on output tubes



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