Art Audio concerto Plus MB [Template]

VERY RARE, EXOTIC  ALL HANDMADE BRITISH CONCERTO PLUS MONO BLOCK
FROM ART AUDIO

PURE CLASS A PARALLEL PUSH PULL SELF-BIASING KT88 CAN ALSO USE 6550 AND KT90
TUBES

HANDMADE POLISH CHASSIS WITH OPTIONAL TRANSFORMER CAGES ( $1000.00 OPTION )



Concerto is a push-pull amplifier that provides single-ended sound at a truly
surprising price point that offers maximum flexibility by allowing our
listeners to use their choice of three different output tubes -- without having
to adjust bias.

Low-level 1.5dB. of feedback
 
 Self-biasing circuits (one per channel)
. 
 Flexibility
of three different output tube choices
 
 Output
transformers are 100-watt devices fitted with grain-oriented laminations
 
 High quality
mil-spec, multi-layered 2-oz. copper trace circuit boards
 
 Capacitors
are low ESR/ESL types for increased high- frequency performance
 
Push-pull,
transformer-coupled, pure class A, parallel output, low-feedback, ultralinear
monoblock amplifier

. Output
transformers - Split core type, laminations with perfectly balanced and
symmetrical primary windings. Solid State with choke filter

Power output: 60-80 wpc


Input sensitivity: 450mV


Input impedance: 180K ohms


Output impedance: 6 ohms

Frequency response: 15Hz to 45kHz ± 0.5dB

Dimensions: 10" x 18 " x 9" [ W x D x H ]


Weight: 45 pounds per amp



NO ORIGINAL BOXES

BUT THE AMPS WILL BE SAFELY PACKED FOR SHIPPING IN CANADA OR USA

I CAN DELIVER AROUND MONTRÉAL, QUÉBEC AND ONTARIO



NEW WAS $ 13,000 (CAD)

Includes:

MATCHED OCTET
(8 TUBES) GENALEX GOLD LION KT88 (LESS THAN 500 HOUR)

2 MATCHED EH 6922

2 MATCHED RFT 12AU7