Rockford Fosgate POWER 1000 MOSFET Bedienungsanleitung

Rockford

Corporation

613 South

Rockford Drive

Tempe

Arizona

85281

(602) 967-3565

(800) 821-2349

POWER 1000 MOSFET

OWNER'S MANUAL

INDEX

INTRODUCTION ................................... Page

SYSTEM FLEXIBILITY ..............................

Page 2

AMPLIFIER BRIDGING .............................

Page 2

INPUT CONNECTIONS .............................

Page 3

INPUT LEVEL CONTROLS ..........................

Page 4

POWER CONNECTIONS ............................

Page 4

GROUND CONNECTION ...........................

Page 5

INPUT MODE SWITCH .............................

Page 5

BLOCK DIAGRAM .................................. Page 6

TURN ON CONNECTION ............................ Page 7

SPEAKER CONNECTIONS .......................... Page 7

SPEAKER WIRE ....................................

Page 8

SPEAKER IMPEDANCE .............................

Page 8

SPEAKER FUSING .................................

Page 8

PASSIVE CROSSOVER IMPEDANCE ................

Page 9

6 dB/OCTAVE CROSSOVER VALUES ..............

Page 10

12 dB/OCTAVE CROSSOVER VALUES .............

Page 11

SPEAKER POWER RATINGS .......................

Page 12

PIEZOELECTRIC TWEETERS ......................

Page 12

BATTERY AND CHARGING SYSTEM ............... Page 13

CROSSOVER SETTINGS .......................... Page 13

POWER 1000 MOSFET SPECIFICATIONS ..........

Page 14

WARRANTY .......................................

Page 15

BIAMPLIFIED MODE DIAGRAM .................... Page 17

BIAMPLIFIED STEREO DIAGRAM .................. Page 18

BIAMPLIFIED STEREO BRIDGED

MONO WOOFER DIAGRAM .................... Page

DUAL STEREO DIAGRAM ......................... Page 20

BRIDGED STEREO DIAGRAM .....................

Page 21

BRIDGED MONO BIAMPLIFIED DIAGRAM .........

Page 22

-WARNING-

Continuous exposure to sound pressure levels over 110

may

cause permanent hearing loss. High-powered autosound

systems may produce sound pressure levels well over 130 dB.

Use common sense as you enjoy your system, and preserve

your hearing.

INTRODUCTION

The Rockford Power 1000 MOSFET 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 1000 MOSFET 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 protection circuitry in the Power 1000 MOSFET

amplifier prevents damage due to shorts, system power

problems, or internal failures. The Power 1000 MOSFET

incorporates internal battery line filtering and extensive noise

prevention circuitry.

The Power 1000 MOSFET amplifier should be PROFESSIONALLY

INSTALLED. The length and nature of your warranty are

dramatically affected if you attempt to install it yourself (see

Warranty).

This is because professional installers are experienced with

making your car sound right the first time. They make their

installation durable because they don’t want continuing problems

and complaints

their reputations are valuable.

-1-

SYSTEM FLEXIBILITY

Four bridgeable channels in the Power 1000 MOSFET provide

unmatched system flexibility with simple wiring changes. Some

of the possibilities are:

Biamplified Stereo

A pair of channels drives mid- and high-

frequency speakers; another pair drives the woofers, The

external crossover (XV-l) is set to separate the input

frequencies into high and low frequencies for each speaker

system.

Biamplified Stereo with Bridged Mono Woofer

Otherwise

similar to the Biamplified Stereo system above, this arrange-

ment bridges the two low channels into a single woofer.

Bridged Stereo

Each pair of channels on the Left and Right

sides is bridged into a full-range speaker system.

Bridged Mono Biamplified

This configuration produces full

power into one mono channel. The front channel pair is

bridged into a mid-tweeter speaker system and the rear

channel pair is bridged into a woofer. The external crossover

(XV-l) is set to separate woofer and midrange frequencies.

Dual Stereo

The power amp acts as two separate stereo

amplifiers, one channel pair for rear full range speakers, one

for front full range speakers. If only one set of speakers can

handle bass frequencies, an external high crossover (XV-l)

can be set to cut off the front speakers’ low frequency drive.

Stereo Woofer Amp

Similar to Bridged Stereo except that the

inputs are driven by an external crossover (XV-l) with the high

frequency drive going to a different amp.

All of these system configurations are obtained with simple

wiring variations; there are no special “black boxes” to buy and

the system may be modified at any time.

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.

-2-

When amplifiers are bridged into a single speaker, each amplifier

“sees” half the total speaker impedance.

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 theseamplifiers, one channel of each pair is inverted

in the amplifier. In normal stereo use, the inverted channel

output isconnected to the negative lead of its speaker load, thus

preserving the system’s 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 1000 MOSFET is designed so that the four amplifier

sections can be bridged in several ways. Right and Left High-

Frequency 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.

The Power 1000 MOSFET amplifier can deliver 500 Watts into a

bridged 4-Ohm speaker. This is enough power to destroy almost

any speaker made. Be sure to use fuses.

INPUT CONNECTIONS (RCA PIN JACKS)

Theamplifier’ssignal inputfemalepin jacksshould beconnected

to the source unit’s signal outputs.

If the source unit has “RCA” pin jack outputs, connect the Power

1000 MOSFET to the source with a standard male to male “RCA”

cable. In some cases, system noise rejection will be improved by

using high-quality braided-shield or double-shielded inter-

connecting cables.

When the source unit does not have pin jack outputs, get an

appropriate adapter from your dealer, or use Rockford adapter

cable No. AS-524.

Some higher-powered source units employ “bridged” output

circuits (“BTL”outputs). Units with bridged outputsare normally

rated at 15 to 25 Watts output by the manufacturer. To connect

-3-

this type of unit to a Power 1000 MOSFET amplifier, the speaker

positive (+) wires should go to the adapter cable center

conductors, but the cable shield ground must be connected to

the source chassis, NOT the speaker negative (-) wires.

Be sure to route the Power 1000 MOSFET signal input cable

away from the Orange power wire and the car’s wiring harnesses,

to avoid noise coupling.

Pre-assembled interconnector adapters are available from

Rockford Corporation for a wide variety of source units.

NOTE: In most Pioneer pre-amp output units, and some others,

the audio shield ground is not at the source chassis common.

For these units, connect the shield lines to both the audio shield

and the chassis common.

INPUT LEVEL CONTROLS

The Power 1000 MOSFET input level controls are accessible

with a jeweler’s screwdriver through four holes in the cover. The

controls are factory-preset to a level which matches most 500

millivolt to 1 Volt rated preamp-output source units.

If you are using the amp in bridged stereo or 2-channel mode

adjust only the controls labeled 2-channel/4-channel front. If

you are using a fader or crossover before the amplifier then

adjust all four channels.

If you are using the speaker-output leads of the source unit, turn

the Power 1000 MOSFET input controls fully counterclockwise

to their minimum gain position.

If the volume control of the source is “touchy” and/or noisy

that is, if just a little volume from the source drives the amplifier

into distortion-reduce the Power 1000 MOSFET input gain

controls so that the distortion doesn’t start until the source

volume is at about 3/4 of its rotation.

If maximum volume from the source won’t drive the Power 1000

MOSFET into distortion, increase the Power 1000 MOSFET

input gain controls until distortion starts at about 3/4 volume.

POWER CONNECTION (ORANGE 4-GAUGE WIRE)

The Orange wire must be connected directly to the positive

terminal of the battery to provide a power source with a low

-4

voltage drop and low noise. If the power is connected to any

other point (the fuse block, for instance) the amplifier’s power

output will be reduced and oscillations and noise may distort the

sound. If the power wire must be extended, use only 6-gauge or

larger wire and make a good splice.

It is best to use as short a wire run as possible. DO NOT run the

power wire next to the input cabling to the amplifier; it wil induce

noise.

Avoid running the Orange power wire near the radio’s antenna

or power leads, or near sensitive equipment or harnesses. The

Orange power wire carries substantial currents and could

induce noise.

The Orange wire is provided with an in-line 100 ampere fuse. Do

not use a larger fuse or the amplifier will not be adequately

protected, and you risk damage to your car’s electrical system.

GROUND CONNECTION (BLACK 6-GAUGE WIRES)

The ground wires must be connected directly to the car chassis,

near the amplifier. Connect the ground wires to separate spots

on the chassis at least one foot apart. Ground loops are

aggravated by the length of the ground wire orany resistance in

the ground path. For this reason we don’t recommend extending

the ground wires in any installation.

The ground points in the car should be pieces of chassis metal

that are welded to the main body of the car. Painted surfaces

should be scraped or sanded clean before the ground lugs are

bolted down. (Cover the bare-metal areas with paint or grease to

prevent rust.) A dab of Panduit CMP-200-1 between the lugs and

the chassis will improve grounding performance.

INPUT MODE SWITCH

The input of the Power 1000 MOSFET normally comes from the

2-channel/4-channel front RCA connectors. However, there are

some cases where it is desirable to be able to drive the rear

channels independently. For instance, if one wanted to drive the

system as two completely independent stereo amplifiers, one

would need to drive the front channel with one stereo pair, and

the rear channel with another.

The 2-channel/4-channel switch (located on the amplifier front

panel) switches the rear channel inputs over to the rearchannel

RCA connectors. To use the amplifier with 4-channel inputs

push the switch in.

TURN-ON CONNECTION

(RED WIRE FROM 9-PIN CONNECTOR)

The Power 1000 MOSFET is turned on by applying Positive 12

Volts to the red wire. Usually, the red wire is connected to the

source unit’s “Accessory” or “Auto-Antenna” lead, either of

which will go positive when the source is turned on.

Although the majority of high-quality automotive source units

have an Accessory or Auto-Antenna output, there are many

which may require different turn-on methods. If the source has

no Auto-Antenna lead (or if Auto-Antenna goes down during

tape operation):

Find the internal switched power voltage inside the

source unit and solder a lead to it. Run the lead out

through the back of the unit (being sure to use a grommet

for insulation from the case) and connect to the amplifier

turn-on wire.

Or: Install a switch in the car with one terminal connected

+12

Volts and the other to the Power 1000 MOSFET red

lead.

Or: Connect the Power 1000 MOSFET red lead to the

accessory point at the car’s fuse block. In this case the

amplifier will be on whenever the car is on. This method

will allow the amplifier to amplify any noise and turn-on

and turn-off transients, and may therefore be unsatis-

factory.

SPEAKER CONNECTIONS

(WIRES FROM 9-PIN CONNECTOR)

Be certain to observe speaker terminal polarity throughout the

system. It is critical for the Power 1000 MOSFET to use the

correct negative leads for the right and left channels, since the

right negative lead (brown) is the “hot” lead for the right

speaker. DO NOT chassis ground any of the speaker leads.

Unstable operation may result.

-7-

SPEAKER WIRE

We recommend that you always use substantial wire for speaker

wiring harnesses. For short runs, 18-Gauge wire is the smallest

we suggest; for runs over 6 feet, 16-Gauge should be used. Many

users find that sound quality is improved by the use of specially-

made heavy-duty speaker wiring from one of several manu-

facturers. The Power 1000 MOSFET output harness uses short

runs of 16-Gauge wire and should not reduce any benefits

gained from specialized speaker wiring.

SPEAKER IMPEDANCE

The Power 1000 MOSFET is rated for operation into loads of

2-Ohms or greater in stereo operation.

The primary load on the amplifier comes from directly connected

speakers (not isolated by capacitors), and the measured

resistance for each side cannot be less than 1.8-Ohms. Single

4-Ohm woofers or parallel 4-Ohm pairs per side will form a

high-performance system. The maximum direct load per side is

a 4-Ohm speaker in parallel with a 4-Ohm speaker.

If the amplifier load drops below approximately 1 S-Ohms, the

Power 1000 MOSFET amplifier will protect the outputs, causing

distortion.

The heaviest load on the power amp normally comes from the

woofers. In speaker systems where midrange speakers are

isolated with crossover capacitors, only the woofers impedance

usually needs to be considered.

SPEAKER FUSING

The Power1000 MOSFET amplifier issupplied with in-linefuses

for speaker protection. The Power 1000 MOSFET amplifier is

fully protected internally against loading problems, and external

fuses are not required for amplifier protection. However,

speakers are not normally capable of continuous full-power

operation and should be fused to prevent damage due to

overheating. The Power 1000 MOSFET is capable of destroying

almost any speaker.

The amplifier is provided with Type AGC (3AG) -/-ampere fuses.

This fuse value was selected to provide adequate protection for

most high-power 4-Ohm speakers. If a light-duty speaker is

-8-

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