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Thirty-four years building premiere Triode, Class A, balanced OTL amplifiers and balanced all-tube preamplifiers; proven top audio performers.

Electronics for those who prefer music: customer comments

Our patented Circlotronic® circuitry is a direct, simple and elegant means of making music, from source to loudspeaker. Balanced Differential Design® is our total design philosophy- a balanced approach to audio.

"These OTL amps are arguably the most beautiful sounding amps in the world regardless of price"
Handwired with our custom wire, custom resistors, custom capacitors and the ultimate circuitry- the good stuff!

The Mk 3.1 lineup is now in production! more


Award-winning technology:

The Absolute Sound Golden Ear and Editor's Choice:
Golden Ear Award
MP-3 preamp
Golden Ear Award
M-60 Mk II.2
Golden 
		Ear Award
MP-1 Mk II
Golden Ear Award
MA-1 Mk II.2
Golden Ear Award
MA-2 Mk II.2
Golden Ear Award
MA-2 Mk II.2
Editor's Choice Award 2010
M-60 Mk 3.1 amplifier
Editor's Choice Award 2010
MP-3 Mk 3.1 preamp
Editor's Choice Award 2009
M-60 Mk III amplifier
Editor's Choice Award 2009
MP-3 preamp
Editor's Choice Award 2008
M-60 Mk III amplifier
Editor's Choice Award 2008
MP-3 preamplifier

Reviewer's Choice
M-60 Mk II.2
Reviewer's Choice
M-60 Mk II.2
Reviewer's Choice
Hall of Fame
Reviewer's Choice
MA-2 Mk II.3
Reviewer's Choice
M-60 Mk.III
Reviewer's Choice
S-30 Mk.III
Reviewer's Choice
MA-2 Mk.III
Reviewer's Choice
MP-1 Mk.III
Soundstage Reviewer's Choice

"Dragging high end audio (kicking and screaming) into the future for over 3 decades..."

Updated: Jan. 28rd 2010. W3C certified. On the web since 1992.