Conrad-Johnson ART 150 Owner's Manual - Page 5

Browse online or download pdf Owner's Manual for Amplifier Conrad-Johnson ART 150. Conrad-Johnson ART 150 11 pages.

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Installation

As is the case with any vacuum-tube power amplifier, the ART 150

Amplifier dissipates a significant amount of heat. Provision must be

made for adequate ventilation. Mount the unit on a flat, hard

surface, taking care that the ventilation holes in the bottom are

unobstructed. Maintain at least four inches of clearance above the

unit, and at least three inches on the sides. The cabinet or shelf

should be open at both front and back. For more restricted

installations, cooling fans are essential.

All ART 150 Amplifiers sold in the United States are configured for

operation on a 60Hz ac power line producing between 108 and 126

volts. Export versions of the ART 150 Amplifier will have the

correct operating voltage and frequency clearly marked on the

back panel of the unit, near the ac power cord. In all cases, the

actual line voltage should be within + 5/- 10% of the nominal rated

voltage.

Considerable care has been taken in the design of the ART 150

Amplifier to minimize its susceptibility to radio frequency

interference and other forms of EMI. Choice of materials, physical

layout, grounding practice, and power supply design have all been

specified with a view to reducing the impact of electromagnetic

fields on the performance of this unit. At the same time, however,

our primary goal is the accurate reproduction of recorded music in

the normal home environment, and we have elected not to

compromise this objective by the application of heavy-handed RFI

filters, or by using grounding practices that reduce RFI at the

expense of degraded audio performance. We find that the

approach we have taken has worked extremely well, resulting in

only rare instances of EMI problems which could be treated locally

as needed, rather than compromising the performance of our

product in the 99.9% of installations where EMI is not a problem.

Care in installation can often avoid EMI induced problems. The

following

practices should generally be observed in any

application, and will be especially important where EMI may be a

problem.

Interconnect cables should be kept as short as possible (3 meters

or less), and shielded cable should be used (cable which has two

Conrad-Johnson ART 150 Amplifier Owner's Manual