Atma-Sphere S-30 mkIII

Amazing imaging and sound staging. One of the BEST OTL amps ever!

Low hours.

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 those who seek the ultimate in amplifier design the S-30 gives you the same precision and sound quality for which Atma-Sphere is known. Featuring automatic bias and a large VU meter, operation is elegantly simple.

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.
Details:
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