Mandala Modules PS8
Over the past year I’ve been obsessed with high-efficiency full-range drivers powered by low power single-ended triode tube amplifiers. These speakers represent my efforts to create a new way of experiencing the resolution and transparency of point source speakers coupled with the smoothness and harmonic richness of tube amplification.
The cuboctahedron enclosure is a very rigid structure with very little cabinet resonance. I use 13-ply 19mm baltic birch as my material of choice, dampened with heavy asphalt-impregnated rubber. Internal resonances are damped with pyramidal acoustic tiles. Silver-plated copper wiring is used throughout.
The driver is an 8" full-range speaker from Dayton Audio with a Kevlar-reinforced paper cone and parasitic high-frequency "whizzer cone." The neodymium magnet offers high-efficiency at 96.5 dB @ 2.83V/1m. I chose this driver for its ability to render amazing detail while extending bass response down to 50Hz. High frequencies are reproduced by the whizzer cone without the phase issues that plague multi-driver designs with timbre-robbing crossovers. The voice coil becomes an extension of the amplifier circuit, revealing all the subtlety and nuance of your favorite recordings.
Point Source Twin Modules
- Sealed enclosure + aperiodic vent
- 8" full-range driver, neodymium motor
- 96.5 dB sensitivity
- Recommended power: 2 - 50 watts tube amplification
- Impedance: 8 ohms
- Dimensions: 28.5" H x 14.25" W x 14.25" D
I recommend checking out the wonderful tube amplifiers built in the U.S.A. by Steve Deckert. He runs a family business and makes some of the most beautiful sounding amplifiers I've ever heard at reasonable prices for audiophiles of modest means. The 6-watt per channel SE34I.5 is powerful enough to drive this speaker to a very satisfying volume level.