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Specifications

Power: 150

30Hz to 15KHz at no more than 1.5% total harmonic distortion

(can be re-connected internally for 16 ohm loads).

Sensitivity: 1.0 V rms to rated power

Small Signal Distortion: less than .25% at mid-band

Frequency Response: 20Hz to 20 kHz +0/-.25 dB

Hum and Noise: 108 dB below rated power output

Phase: phase correct

Input Impedance: 100 kOhms

Tube Complement: 3 x 6922, 4 x KT150

Important Note: output tubes must be replaced with matched pairs

selected for use in this amplifier.

Mechanical

Dimensions: 16.3125"D x 19"W x 8.75"H

Net Weight: 80 lb net

Fuses

The ART 150 Amplifier power transformer is protected by a fuse

on the ac power line (F5, located in a compartment in the ac line-

cord receptacle mounted on the back of the amplifier), and by four

separate internal fuses on the secondary circuits of the transformer

(F1 – F4) located on the bottom of the pc board. A failure of any of

these fuses is a symptom of a more serious problem, and a

competent service technician should be consulted. In no event

should fuses be replaced with a value or type different than that

originally supplied. The correct fuse values and types are:

Watts rms both channels driven into 4 ohms from

F5:

5x20mm 12 amp T-type if configured for 100 or 120V:

5x20mm 6.3 amp T-type if configured for 220 or 240V.

F4:

5x20mm 3.15 amp T-type

F1, F2, and F3: 5x20mm 200ma T-type

Conrad-Johnson ART 150 Amplifier Owner's Manual