Transcendent Sound       Vacuum Tube Audio Amp Kits

The Son of Beast OTL

Lowest Cost 15W Stereo OTL Amplifier

Full kit: Only $799 without tubes.  With tubes: $1249

Outstanding Features Include:

●  Lowest Price

●  Dead Quiet

●  Simpler Circuit

●  Tremendous Bottom End

●  Lowest Heat

●  Classic OTL Sound

The Son of Beast OTL is the latest in the on-going evolution of Transcendent Sound circuitry.  This new design to reduces cost without any sacrifice in performance.  Specific improvements over previous designs are:

●  Reduction of driver circuitry from 3 tubes to 2.

●  Elimination of the separate high voltage transformer.

●  Elimination of the bias transformer.

●  Reduction of noise.

●  Reduction of heat.  Draws only 1.4 amps at 120V.  (0.7 amps on 230-240V)

These developments greatly lower costs allowing many more people to enjoy the unmatched sonic qualities of OTL amplification.  A power output of 15 watts per channel will drive many high-performance loudspeakers on the market.  As speakers move up on the efficiency scale, the need for high-power amplifiers declines.  Our new DIY Speaker design is an excellent match and will provide extremely loud sound levels.

Nothing sounds better than an OTL.  No transformer coupled amp, no solid state amp can match the sound.  It cannot be imitated.  Striking imaging causes instruments to be layered in a three dimensional sound stage that recreates the experience of a live performance. The music "opens up" and leaps out of the loudspeaker eliminating any box like sound. The most minute and subtle sounds are revealed producing uncanny realism. Musical voices are warm and lifelike yet completely neutral with a razor sharp focus. Nothing else can compare.  Don't just listen to your music.... experience it.

All of the clarity, openness, air, and naturalness that Transcendent Sound OTLs are famous for have been retained in this  design.  There is no loss in performance.  Be the first kid on the block to own one and order today!

Easy to Build!  The assembly manual uses 100% color photographs.  No diagrams are used.  Eight different colors of wire are included to further ease assembly.  

Size: 17 inches wide by 10 inches deep.

Weight: 19 pounds

Input Sensitivity:  2.2 volts.  (Preamp Recommended)

Gain:  14 dB.

Power Bandwidth: 10 Hz to 25 kHz.

Noise: Can’t hear any.

Distortion: Less than 1%.

Output Impedance:  0.8 ohms.

Power Consumption: 1.4 amps at 120V or 0.7 amps at 230-240V

Tube Compliment: 8-EL509 and 4-12AT7 (ECC81)