Tom Evans Audio Design-USA

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The Tom Evans Linear A and Linear B amplifiers are truly revolutionary, groundbreaking designs.

Both the Linear A stereo amp, and the Linear B monoblock amps are ultrawide bandwidth designs with vanishingly low levels of distortion. More importantly, unlike some other amps with those same two qualities, these amps are incredibly involving and a joy to listen to.

The Linear A is a single ended, Class A, ultralinear stereo amp with a power rating of 25WPC. Four EL84 tubes per side, in parallel, create a composite tube with characteristics almost identical to the legendary Japanese No.10 tube. The amp measures as an almost perfect model triode, promising to deliver the often sought but rarely realized linearity benefits of triode topology without it's usual limitations.

Paired with an appropriate speaker, this amp can do it all in a way nothing else in our experience has ever been able to do; luscious midrange combined with rarely realized frequency extension. The absence of distortion has to be (not) heard to be fully understood. The clarity and detail retrieval are astonishing, but not at the expense of musicality. It's a combination of qualities we have never heard outside of the two Tom Evans amps. We invite and welcome comparison with any amp in the world, at any price.
---LINEAR A SPECIFICATIONS---
Frequency Response: 12Hz to 90kHz-these are 0dB down points! Flat.
Power: 25.2wpc Class A
Output Noise: 150dB down 700microvolts(!)(not millivolts)
Output Impedance: 0.5 Ohm
Input Sensitivity: .7millivolts

Price: $8900




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Linear A Special Edition
(differs only in casework)

Linear A Reviews: In a very comprehensive review of the Linear A and associated Tom Evans equipment, Jeff Day writing for 6moons.com, says"they represent the most startling advancement in the reproduction of music that I have experienced in my home....it also represents the most significant advancement in the reproduction of musical realism that I have encountered short of sitting in with a band....you'll most likely be stunned too when you hear the whole Tom Evans stack of gear playing the tunes....simply the finest amplifier I have encountered in all my years in audio."
You are encouraged to visit the 6moons site and read the entire review here. Also, Roy Gregory in Hi Fi+ issue 38, says that the Linear A "is capable of a glorious, breathtakingly convincing musical delivery.....one of the biggest bargains out there in high-end audio land."

Rarely has a set of audio components so outdistanced the competition. Anyone in the market for an amplifier owes it to themselves to audition either a Linear A or Linear B. We are quietly and happily confident that it will easily outperform anything else currently available.


The Tom Evans Linear B monoblock amps differ in design from the Linear A stereo amp. The Linear B is not simply a monoblock iteration of the Linear A.
The Linear B is a push-pull fully differential design.
Listening comments which apply to the Linear A also apply to the Linear B, but more so.

---LINEAR B SPECIFICATIONS---
Frequency Response: 12Hz to 90kHz 0dB down
Power: 50wpc
Output Noise: 700 microvolts (not millivolts)
Output Impedance: .125 Ohm (!)
Input Sensitivity: .7 millivolts

Price: $17,000 pair




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Linear B is in same casework as Linear A, however there are two of them.