David Berning Co Quadrature Z 220 WPC OTL mono-blocks

Two year parts and labor warranty come with these certified amplifiers.

I am the reference dealer for the David Berning company.

Review : http://www.stillpoints.us/images/review_pdfs/hi-fi_plus_issue_61.pdf

Free shipment to continental US only. Shipment to Alaska and Hawaii at actual cost.

Specifications include:

Both single and balanced input, all balanced amplification.
Special triode-like screen-drive output stage.
Low negative feedback, no phase compensation used.
Constant output impedance over entire audio spectrum.
Built-in five-stage power-line filter and surge suppressor.
Non-magnetic chassis prevents skin-effect induced distortion.
Separate shielded enclosure for power supply reduces noise.
Power consumption: idle-125 W; max-500 W. Power factor corrected.
Line voltage required: 100-260 VAC, 50-440 Hz.
Typical output power at onset of clipping: 8 ohms 220 W; 4 ohms 270W.
inputs.
Tube complement: (4) 33JV6 output; (2) 16GK6 driver; (3) 12AT7 input and gain.
Size: 48 cm wide, 48 cm deep, 20 cm high, (19 X 19 X 8 inches), including connectors and feet.
Net weight: 15 kg (32 lb); Boxed, 17 kg (38 lb).
Finish: silver face and back anodized aluminum; top and sides: light gray paint with silver anodized accent bars. Comes equipped with Stillpoints TM isolation feet.