Transcendent Sound       Vacuum Tube OTL Audio Amp Kits



Transcendent Sound produces vacuum tube audio amplifier kits that utilize OTL (output transformerless) technology.  This is where the vacuum tubes directly drive the loudspeaker with no intervening transformer. The result is an unbelievable clarity and realism that no other configuration can achieve.  The music leaps out of the loudspeaker and floats in the room eliminating any “box” like sound.  It is silky smooth yet possesses uncanny detail and three dimensional imaging.  It has to be heard to be understood.  Words alone cannot reveal the OTL tube amp experience.  We also have a world class tube line level preamps and tube phono preamp.  Our tube amps and preamps are renown for their extremely low noise and musicality.

Our designs emphasize simple, trouble free operation.  They are extremely long lived and reliable.  We have tube amps that have been performing flawlessly for 20 years.  They just keep working.  Our equipment is hard to find on the used market simply because people rarely sell them.   To support the DIY tube audio hobbyist, all equipment is available in kit form.  Our instruction manuals are superb with dozens of color pictures and each assembly step is accurately detailed.  If you can solder, you can build a Transcendent Sound product.  

Browse our complete line of high end audio amps and preamps.

We have books and plans for sale that allow the DIY constructor to scratch build their own projects.

Join our forum for help and discusion on audio projects.  This is a friendly, non judgemental discussion zone.




Kit Specialist in Vacuum Tube OTL Amplifiers and Preamps

Build it Yourself and Save  

Our products easily outperform dealer supplied equipment that costs over four times as much.

Proof?  Ask someone who owns one.

Where?  Thousands of products sold worldwide.

Making tube amps since 1995.

Your Music

Your Experience

If You Love Music...

  If You Love Audio...

     You Will Love Transcendent Sound!

No Nonsense, No Hype.

    Just Performance.  

We Specialize In

Vacuum Tube Audio Amps

OTL Amps and Kits

DIY Tube Audio Books

Tube Preamps


High End Audio for the Rest of Us