What you are looking at is a scalled down, non production version of the Purity Audio Design Harmonia 300B vacuum tube source buffer but with the addition of a 4 input relay based source selector and volume control. By scaled down, this means it is a single ended unit only and built into one of our remaining Musica bella Spitit linestage chassis. This is not a prototype.
We are considering bringing this model to market this summer after having chassis' designed.
The Harmonia BP is designed as a 300B buffer output stage for any source component. Can also be used as a preamp to be used into a power amplifier but may cause noise in higher effeciency speakers. See details below.
DETAILS: Price does NOT include 300B tubes or power cord. Shipping included to lower 48.
2 years parts and labor warranty
1 300B per channel
Solid state power supply with high current toroidal transformer.
Power supply is choke filtered
Plate choke on each 300B tubes
Pete Millett regulators for each 300B's filament (one per tube)
Each 300B has a high end Raven Audio Teflon capacitor across the filament pins
Clarity Cap acrylic encapsulated coupling capacitors bypass with film capacitor and Raven Audio Teflon capacitor.
Alps Blue volume control
Preamp/Buffer switch (bypasses volume control)
4 single ended inputs
2 single ended outputs
Output Impedance: 90 ohms
Asking $1,600 OBO
Please contact us with any questions comments or concerns you may have prior to purchase.