Installation – Speck Electronics ASC User Manual
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The following information should give you the basics on how to install 
the Model ASC and PS-4 power module. The proper installation of the 
Model ASC as part of a larger system requires a clear understanding of 
audio wiring, AC distribution, grounding, and shielding techniques. 
 
When the Model ASC is being installed into a larger system it may be 
necessary to retain the services of someone experienced in these matters. 
 
 
The Model ASC is delivered in a special, protective container and was 
carefully inspected both mechanically and electrically before shipment. 
It should be physically free of mars and scratches and in perfect 
electrical order upon receipt. To confirm this, the product should be 
inspected for physical damage that may have occurred in transit. Any 
damage should be reported to your delivery company as soon as 
possible. 
 
 
The Model ASC will operate satisfactorily over a wide range of ambient 
temperatures. The Model ASC will operate from 10 to 50 degrees C and 
the external power module will operate from 0 to 30 degrees C. If 
installed in an equipment rack that also contains heat producing 
equipment, adequate ventilation should be provided. This will prolong 
component life and maximize operational stability. 
 
While the internal circuitry of the ASC is fully shielded by the steel 
chassis, installation should nevertheless be planned to avoid locating it 
or any low level audio equipment immediately adjacent to power 
amplifiers, power supplies, or any source of low frequency 
electromagnetic emissions. 
 
 
To protect operating personnel, the National Electrical Manufacturers 
Association (NEMA) recommends that the instrument panel and rack 
cabinet be grounded. 
Merely affixing the Model ASC into an equipment rack is no guarantee 
that the product is making a reliable ground connection. The mounting 
rails in the equipment rack should never be depended upon for a ground 
connection. 
 
Upon loss of the protective ground connection, all accessible conductive 
parts, including knobs and controls that may appear to be insulating, can 
render an electric shock. 
 
Installation
General
Unpacking and Inspection
Environmental
Considerations
Electrical
Grounding Safety
Chapter 2 Installation Section
