Adcom 2-CHANNEL GFA-5275 User Manual
Page 4
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THE BALANCED CONCEPT;
The advantaoa of a batanced line system is simóle: Noise reduction. Any
noise that is induced into the signal path is automatically canceled at the Input of
the amplifier. Therefore, induced noise is no longer a problem or concern for car
audio installers. In order to have a ‘balanced* ayatem, you need 3 Items:
1: a Balanced Line Driver (GFI-S2Ó0).
2; a Balanced-type Cable
(two pairs of
RCA cables).
3: a Balanced Amplifier (GFA-5225.GFA-5250 or GFA-5275). ..
If we follow the signal from the source (CO. Tape deck), to the amp, we can
see exactly how a Balanced Line System works.
As the signal exits the source unlL H is converted to a balanced signal by
the GFI-5200. It is then transmitted through the cables (two pairs of RCA cables)
to the balanced amplifier. If, while the signal is being transmitted, H picks up.any
induced noise. It will travel
with the orii^nal
to the input of the amplifier.
The amplifier's differential input will ignore the noise that was added, and only
amplify the original signal.
CARTON CONTENTS:
The Adcom GFA-S225, 6FA-S2S0 and GPA-5275 amplifiers are shipped
from the factory with the GFI-5200 2-channei Balanced Une Driver.
Also included vdth your Balanced System is a fiise holder vrith an
appropriately sized fuse. For proper connection of the fuse, see the
CONNECTING POWER secfion. There should also be a Warranty Registration
card included. Fill this out and drop it in the mail; there is no postage needed.
Even though you send in-the Warrarity card, you should
atways
keep
your
original sales receipt for proof of purchase date. '.
UNPACKING;
Be sure to verify that the serial number printed on the bottom of the amplifier
is the same as the serial number on the carton. If either number is missing or
altered, you should contact ADCOM immediately at (908). 390-1130. Before
each ADCOM Car Amplifier System leaves our fadlity in New Jersey, it is
carefully inspected for physical imperfections and electrical performance as a
routine part of ACCOM's Quafity Assurance system. This is to ensure flawless
performance- and appearance when you receive H.
After you have unpacked your amplifier, inspect it for physical .damage. In
the unlikely event that damage has occurred during shipping, a freight claim to
cover shipping damage can be initiated. THE RIGI^ TO CLAIM A(3AINST A
PUBLIC CARRIER CAN BE FORFEITED IF THE CARRIER IS NOT
NOTIFIED
PROMPTLY
AND
IF
THE
SHIPPING
CARTON
AND
PACKING MATERIAL ARE NOT AVAILABLE FOR INSPECTION. SAVE
ALL PACKING MATERIAL UNTIL THE CLAIM HAS BEEN SETTLED.