Adcom GFP-345 - Manual (Page 10)

standard amplifiers and speakers having medium-to-low sensitivities, the position of thiscontroi wiil beat its normai 12:30
to 1:30 o'clock position. There are many factors which will affect the position of the LEVEL control for any given
iistening levei. Among these are; the specific sensitivity of the power amplifier for maximum output; the sensitivity (or
"efficiency") of the speakers being used; the size of the room in which the speakers are located; the output levels of the
sources being used and plugged into the GFP-345 (cassette machines, tape recorder, CD piayer, etc.): the moduiation
ievei of the station being received by yourtuner; etc. The position of the LEVEL ® controi isareiative indication to permit
you to return to a simiiar level setting again and again. It is not an absolute indication of how much power the amplifier
is delivering to the speakers or "how powerful” a system is. It is quite possibie, with different component systems, to have
the same power output from an amplifier, and sound level from the speakers, but with different LEVEL © control settings
of the GFP-345, It is also quite common to have to set the LEVEL ® control to a different position, when switching from
one source (say CD) to another (such as a cassette machine), to achieve the same, or approximate volume level from the
loudspeakers. Similarly, different FM and AM stations received by your tuner may require adjustment of the LEVEL
® control depending ontheamount of audio "limiting" and “compression" used by the particular station and/or the type
of music it broadcasts.
NOTE
For the reasons described above, it is good practice to lower the LEVEL i
o selector to a different source. control before changing the INPUT
The design of the GFP-345 makes it usable with the gamut of power amplifiers presently available, as well with all
loudspeakers presently in use. The LEVEL control was designed to befully operable throughout its complete rotation.
CARING FOR YOUR GFP^5
Great care has been taken by ADCOM to assure that your preamplifier is as flawless in appearance as it is electronically.
The front panel is a heavy-gauge, high-grade, anodized-aluminum extrusion, bead-blasted for durability. The bottom
cover, chassis, top cover and rear panel are of heavy-gauge steel, both painted and baked. If the front panel, top or sides
should become dusty or fingerprinted, they can be cleaned with a soft, lintless cloth, slightly dampened with a very mild
detergent solution.
NOTE
DO NOT SPRAY OR USE LIQUIDS OF ANY KIND ON THE
SURFACES OF THE GFP-345.
SERVICING
ADCOM has a Technical Service Department to answer questions pertinent to any difficulties you encounter in the
operation of your unit. If you encounter problems obtaining advice or resolving your problems locally, please contact us
by mail or fax for a prompt recommendation. If your problem cannot be resolved directly through instructions from us,
we may refer you to an authorized representative near you for resolution.
Please address mail inquiries to:
ADCOM Service Corp.
11 Elkins Road
East Brunswick, NJ 06816
US.A.
Should you find it more expedient to contact us via fax, the number is (908-390-9152). Please include a return fax number
so that we can reply.