Product Description :
Adcom GFA-565se Bridgeable High Current StereoPower Amplifier
Adcom GFA-565SE is a very powerful ampli?er capable of delivering very large peaks into low
impedances, exceeding 70 amperes per channel. The GFA-565SE ampli?er can drive a very
broad range of loudspeakers, including those with very low impedances, at sustained high-
power levels, even when the impedances are highly reactive. The GFA-565SE's circuitry is
directcoupled internally to minimize the sonic deterioration which capacitors, when used between
stages of amplification, can cause. As a result, the GFA-565SE can amplify DC and has no limit
as to low-frequency or peak-bass energy delivery. In particular, the driver stages are designed to
provide all the current required by the output devices without limiting, compressing, or otherwise
distorting the signal coming into the power ampli?er. All internal point-to-point wiring is OFC and
the highest-grade parts, consistent with their application and voltage requirement, have been
used in its construction. In especially critical circuits, the ?nest quality film capacitors have been
used. Among its other design improvements are the following:
•Larger potted transformer provides better overall regulation for driving lower impedances at
high power levels; also provides greater peak-current capability into loudspeaker loads
•No electrolytic capacitors in the low-frequency signal path or feedback-loop path. Only precision
non-polarized capacitors are used.
•Addition of a servo circuit minimizes DC-offset voltage at the loudspeaker outputs; this insures
that there is no woofer "biasing" with attendant low-frequency distortion.
•Larger outside double heats inks for each channel for greater heat dissipation and better
temperature and dynamic bias tracking. Greater thermal stability is thereby insured.
•More cooling vents on top cover and chassis for greater cooling efficiency and cooler operation
into lower impedances.
•High-quality, gold-plated brass RCA input jacks with Teflon insulators.
•Thermal overload indicator LED on front panel
