Transcendent Sound       Vacuum Tube OTL Audio Amp Kits

The Son of Beast

Low Cost Push-Pull Stereo OTL Amp

The Mini Beast

Single Ended Class A OTL Amp

The Pinnacle

Push-Pull 300B OTL Amp.  The Best OTL Ever

The Masterpiece

Combo  Headphone/LineStage Preamp  300B Based.  

The Grounded Grid Preamp


Phono Preamp


The Fixer

Line Stage Control Center with Active Tone and Balance Controls

The Bruiser

50 Watts into 2 ohms

The Beast Jr.

40W OTL Monoblocks, Classic OTL Sound

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New!  The Slider Preamp

Variable Gain--Zero Feedback with Phono Stage

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A DIY Project For You

Discontinued Products Below

Circuit Boards Only