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INSTALLATION

TOOLS NEEDED FOR INSTALLATION

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1/16" Allen Key (Included): Crossover Security Cover Top Screws

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3/16" Allen Key: Up to 1/0 AWG Power Rings, Power / Ground

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5/32" Allen Key: Up to 4 AWG Direct Input, Power / Ground

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1/8" Allen Key: Up to 8 AWG Speaker and Remote Terminal
(Also Accepts Banana Jacks)

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7/64" Allen Key: Amplifier Mounting Flanges

A WORD ABOUT PROFESSIONAL INSTALLATION…

We, the folks at Diamond Audio, highly advise the use of a factory authorized
installation technician. System performance ultimately depends on proper
installation. Your D7 Series amplifier is an awesome component that deserves
to be professionally installed. If this last-chance plea for dealer assistance
doesn’t sway you, the following instructions will make the installation of your
new amplifier a little easier.

Before starting your installation, remove the negative battery cable before
working on the positive terminal to prevent a short to ground. If a short does
occur, current will continue to flow until the short is opened, the main fuse
blows, or the wire melts (possibly taking out any nearby flammable object,
wire loom, etc. causing a fire or possibly even a tear in the fabric of time and
space). Reconnect the negative terminal after all connections have been made.

MOUNTING YOUR AMPLIFIER

WARNING — AMPLIFIERS GENERATE HEAT!

You can mount your amplifier in any position, even upside down.
However, airflow must be maintained. Do not install your amplifier
under carpets or behind airtight panels. Let the amplifier breathe.
Without air circulation, your amplifier will reduce its power
output to protect itself.

D7 Professional Reference Amplifiers 

utilize a forced-air cooling system.

Care must be taken to provide a sufficient flow of air around the amplifier
for the thermal management system to operate at peak efficiency. Air is drawn
into the system along the sides of the amplifier, over the circuit board, through
the bottom heat sink and is exhausted through the vents on the end panels.
Be sure to allow at least 2 inches of space around the amplifier. Never mount
your amplifier where it can get wet. Water damage is not covered by the

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SYSTEM DIAGRAM 2

Four Channel System with

Subwoofer and Biamplified Front Stage

D7 two channel amplifier

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Source: Front RCA outputs

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Channels 1/2 Highpass to tweeters

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AUX. OUTPUTS to 2nd D7 amplifier

D7 two channel amplifier

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Input: AUX. OUTPUT (full range)
from D7 tweeter amplifier

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Channels 1/2 Bandpass to a pair of midbass drivers

D7 two channel amplifier

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Source: Rear RCA outputs

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Channels 1/2 Highpass to a pair of
rear fill coaxial components

D7 two channel amplifier

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Source: Subwoofer RCA outputs

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Channels 1/2 Lowpass to a pair of
bridged 8 Ohm subwoofers

D7152 and D7402 manual #135.p65

8/30/2002, 2:34 PM

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Summary of Contents for D7152

Page 1: ...he CH 3 4 INPUTS X OVER INPUT SELECT button set to the OUT position These signals can then be processed by the third AUXILIARY crossover This additional independent crossover can be used with a separate amplifier not equipped with its own on board crossover for the ultimate in system flexibility 11 D7 CROSSOVER FREQUENCIES Diamond Audio D7 Professional Reference Series Amplifiers feature fully var...

Page 2: ...ifiers in your system Please refer to the Diamond Audio Level Setting Technical Brief available from the Tech Department for a comprehensive level setting procedure 12 Note It is important that a 4 Ohm minimum total speaker impedance load is observed If an impedance load of less than 4 Ohms is used you will eventually damage your amplifier and void your warranty RCA INPUTS AND OUTPUTS As seen in t...

Page 3: ...ovide a separate fully independent crossover for the output RCA jacks providing filter control of any other amplifier 13 THERMAL MANAGEMENT SYSTEM All D7 Professional Reference Series Amplifiersfeature our Intelligent Thermal Management System All amplifiers feature one or two depending on model internally mounted temperature controlled cooling fans Care should be taken to allow adequate breathing...

Page 4: ...d constantly available source of energy When the engine is stopped the battery is the vehicle s energy source When the engine is running the alternator is the on board electricity generating plant It is the job of the alternator to supply power to all current consuming loads including the audio system Alternator output battery capacity and power demand of all electrical loads and systems must be m...

Page 5: ...if your vehicle s charging system needs to be upgraded consult your Authorized Diamond Audio Dealer They will be happy to set you up with everything necessary for you to enjoy a listening experience in your vehicle without equal BASIC TROUBLESHOOTING 1 Amplifier has no output Is LED located on power ground endpanel lit Yes Make sure audio signal is present at RCA inputs If no signal is present use...

Page 6: ...ution block and tighten the Allen screw Insert the other end of the cable into the ground block on the amplifier and tighten the screw A ring terminal may be used here Repeat for each amplifier installed Run a cable the same gauge as the main power cable from the ground distribution block to the negative terminal of the system battery Your D7 Professional Reference Series Amplifieris designed to a...

Page 7: ...a single point in the vehicle The gauge of the power and ground cables must be capable of handling the current needed by the entire system Power and ground cables must be of the same gauge If the alternator is not capable of supplying enough power for both the vehicle AND the audio system a high output alternator should be installed for best performance POWER 12V Strip approximately 1 2 inch of in...

Page 8: ...en made MOUNTING YOUR AMPLIFIER WARNING AMPLIFIERS GENERATE HEAT You can mount your amplifier in any position even upside down However airflow must be maintained Do not install your amplifier under carpets or behind airtight panels Let the amplifier breathe Without air circulation your amplifier will reduce its power output to protect itself D7 Professional Reference Amplifiersutilize a forced air...

Page 9: ...voltage at the input of the power supply resulting in increased current draw We recommend that you install the correct size fuse holder combination to the main power cable within 18 inches of the battery This will protect your vehicle from fire damage due to a short circuit to the chassis or vehicle body If a single amplifier is installed follow the fuse recommendation below If installing multiple...

Page 10: ...Blocks 24 Karat Gold Plated Solid Brass Circuit Board Mounted 10 Gauge Direct or Banana Plug Direct Speaker Connectors Tinted Plexiglas Circuit Board Viewing Panel Solid Billet CNC Machined End Panels with Adjustable Mounting Flanges SPECIFICATIONS Frequency Response 3 50 000 Hz Signal to Noise Ratio 96dB D7152 102dB D7402 THD 0 02 Channel Separation 80dB Input Sensitivity 5 to 12VRMS Input Impeda...

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