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Chris Siegmund releases his purest example of vintage style tube amplification yet.

The Diamond is a resonating 300B tube amplifier tuned to the natural response of acoustic and electric stringed instruments. The signal flows freely without distortion or limitations in frequency range from the original source directly thorough the speaker to the listener's ears. No capacitors or resistors are in the way, as with conventional tube amplifier designs.

The Diamond's unique design originates from the simple approach of the pioneer days of tube technology. The direct interaction of tubes and components has a resonating effect on the signal. Harmonics can be tightened or released to create an acoustic instrument-like natural resonance.

The input absorbs all the unique character of the introduced signal. Unlike conventional tube amp designs, with typical compression and signal loss, the Diamond embraces every nuance blossoming to full musical potential.

Together with the ideally balanced JBL D130 mahogany speaker cabinet, the Diamond becomes the ultimate clean tube amplifier for discerning musicians perfectly matching refined tone and accomplished technique.

The Diamond has a list price of $2995. - (excl. tubes). A great selection of premium tubes is available at discounted prices. Mahogany JBL D130 speaker cabinet is $999. Every unit is individually handmade to order.


  • Class A push/pull 30 Watts
  • 300B mesh plate output tubes
  • 6J7G or 6K7G mesh plate preamp tubes
  • 83 mercury vapor rectifier tube
  • Adjustable resonance
  • No-loss frequency range selector
  • Point to point wiring
  • 100,120,220,240VAC 50/60Hz
  • Handmade in USA
  • 3-year warranty

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