Rockford Fosgate Power 100HD, Руководство по установке, Страница: 4 / 12

INTRODUCTION
The Rockford Power 100HD is an automotive stereo power amplifier which will provide state-of-the-
art sound in cars, vans, boats, or wherever a 9 to 16 volt battery is available.
The Power 100HD adjustable input circuits are designed to match almost any music source, from
low preamp levels to speaker levels, with negligible noise. The amplifiers will drive all normal speaker
types, impedances, and configurations.
Internal fusing in the Power 1OOHD amplifier prevents damage due to shorts, system power
problems, or internal failures. The Power 1OOHD incorporates new internal battery line filtering and
extensive noise prevention circuitry.
The Power 100HD amplifier should be PROFESSIONALLY INSTALLED. The length and nature of
warranty are dramatically affected if the customer attempts to install it (see Warranty).
AMPLIFIER BRIDGING
Operating an amplifier in the “bridged” or “strapped mono” mode means driving one speaker or
speaker system with two amplifier channels. Each channel will put out full power into its half of the
speaker load, so the system can drive the speaker with double the power that a single amplifier
channel would be capable of. (See Figure Two)
When amplifiers are bridged into a single speaker, each amplifier output “sees” half of the total
speaker impedance.
New Rockford-Fosgate amplifiers are designed so that connecting the amplifier for bridged mode is
a simple matter of using the correct speaker leads as shown in the appropriate system diagram. In
these amplifiers, one channel of each pair is inverted in the amplifier. In normal stereo use, the
inverted channel output is connected to the negative lead of its speaker load, thus preserving the
system polarity. In the bridged mode, the inverted channel is connected to the negative lead of the
speaker to be bridged, and the positive lead is connected to the non-inverted channel. This provides
the out-of-phase drives required for bridged operation.
The Power 1OOHD MOSFET is designed so that the four amplifier sections can be bridged in several
ways. Right and Left Front channels can be bridged, The Right Low and Left Low-Frequency
channels can be bridged, the Right High and Right Low channels can be bridged together, and the
Left Low and Left High channels can be bridged. These combinations allow an unmatched flexibility
in designing stereo, biamplified, and hybrid bridged systems. (See Figure Two)
INPUT CONNECTIONS (RCA PIN JACKS)
The amplifier’s signal input female RCA jacks should be connected to the source unit’s signal outputs.
(See Figure Four For Connections)
If the source unit has “RCA" jack outputs, connect the Power 100HD to the source with an “RCA"
adapter cable. In most cases, system noise rejection will be improved by using high-quality
braided-shield or double-shielded interconnecting cables. We recommend Perfect Power intercon-
nects.
When the source unit does not have RCA jack outputs, wire the left signal output to the black center
conductor of an adapter cable; the right signal output to the red conductor, and the ground to the
shield lines, or use Rockford
adapter cable No. AS-524 .
Some higher-powered source units employ “bridged” output circuits ("BTL” outputs). Units with
bridged outputs are normally rated at 15 to 25 Watts output by the manufacturer. To connect this
type of unit to a Power 100HD amplifier, the speaker positive (+) wires should go to the adapter cable
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