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Art Audio > Push-Pull Amplifiers > Quartet MB

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Quartet MB

Art for the eyes. Art for the ears. At the heart of these words is where we live every day. We are Art Audio. Ours is a crusade that carries on where each circuit is pursued with the utmost passion for both performance and musicality. 

And where industrial design meets old world craftsmanship in a family of products that speaks to a singular level of presentation … where hand polishing, indeed triple polishing of the accessories, is the standing order. 

Our goal is attaining an unequivocal

$ 13000.00          Back

Quantity:    


Type: 
 
845 Push-pull, pure class A monoblock amplifier 
Output Power:
Input Sensitivity: 
Input Impedance: 
Output Impedance: 
Frequency Response: 
Tube Complement: 

Dimensions: 
Weight: 

Warranty:
45-50 wpc
650 mV, 800 mV (0 feedback) 
180 K ohms 
4 and 8 ohms (optional impedance taps are available by special order)
5Hz-60kHz ± 0.5 dB. @1 w. 10Hz-50kHz ± 0.5 dB. @ full power 
2 x 845, 1 x 12AU7, 2 x 12BH7A 

18.25" x 13.75" (incl. heat sinks & terminals) x 10" [ W x D x H ]
lbs.

3 years parts and labor/90 days on tubes 
 
Mil-spec PC board

Automatic bias circuits for each output tube to require no end user adjustmens. Matched output tubes in this unique design are not essential. 

Split-core type transformers: 150-watt devices fitted with grain-oriented laminations and perfectly balanced and symmetrical primary windings.

Solid-state rectifier: 2 stage choke filters.

No cathode followers

Solid-state, DC PI filtered heaters

Feedback switching from 0 to 6dB 

Valve Art 845 are standard, Optional power tubes are available upon request.


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