Vacuum Tube Sound for the 21st CenturyMapletree Audio Design offers a unique range of products designed and hand crafted by Dr. Lloyd Peppard, a retired electronics engineering professor. The goal is to increase your enjoyment of recorded music through the use of vacuum tube amplification and signal processing.
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monoloc power amplifier - 50 W with KT88s
running class AB1 ultra-linear with fixed
bias. Triode mode switch. Built on a stainless steel
Dynaco Mk III chassis with Mullard topology
driver circuitry (6SJ7 voltage amplifier and 6SN7GT
long-tail phase inverter) and Dynaco spec output and
power transformers. WIth premium passive components and
a very stiff power supply, the sonics are effortless and
open, espeicially noticable on high level transients.
Available for 240 VAC ( $30 additional).
Super Stealth monobloc
power amplifier. Using the EH 6V6GT tubes
in class AB ultra-linear push-pull, the Super Stealth
delivers a clean 8 W, making it suitable for a wide
range of speaker systems.
Super Stealth SE monobloc power amplifier. The special edition of the Super Stealth includes provision for 12 V or 6 V driver tubes, dc balance adjustment for output tubes, and bias adjustment.
Red octal driver module
for Dynaco Stereo 70 power amplifiers. A drop in,
point-to-pointwired driver board using Mullard
driver topology with 2-6SJ7 and 2-6SL7GT tubes.