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POWER/GROUND/REMOTE

D5

amplifiers need proper power and ground connections to deliver maximum

performance and efficiency. This is typically the least understood part of the
installation process. Voltage drops due to poor quality connections and/or
poor grounding practices will rob your audio system of power that could be
used for listening to music. These voltage drops will create increased current
draw and will make it easier for noise to enter your system.

Your new amplifier has a fully regulated power supply. It is designed to make
full power even if the voltage changes. It will draw more current at lower
voltages to make that power. Try to ground your system to 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.

A Word About Batteries
and High Output Alternators…

The battery in your car is a chemical storage device for electrical energy
generated by the alternator. It is capable of briefly supplying high currents for
cold starting the vehicle as well as powering other important electrical loads
either partially or entirely for a limited period when the engine is off.

In order to supply the power required for ignition, lighting, large audio
systems etc. a car needs its own efficient, reliable, and 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 matched as ideally as possible so the entire system is
reliable and trouble-free in operation.

Diamond Audio Technology   4

Summary of Contents for D5 300.4

Page 1: ...nd warranty non warranty repairs Repair or replacement under this warranty is the exclusive remedy of the consumer DAT shall not be liable for any incidental or consequential damages for breach of any expressed or implied warranty on this product Except to the extent prohibited by applicable law any implied warranty of merchantability or fitness for a particular purpose on this product is limited ...

Page 2: ...300 4 600 4 Owner s Manual Serial Number__________________________ Date of Purchase________________________ www diamondaudio com Professional Reference Series Amplifier ...

Page 3: ...ce Fully Variable Electronic Crossovers Nickel Plated Solid Brass Circuit Board Mounted 4 Gauge Direct Power Ground Connector Blocks Nickel Plated Solid Brass Circuit Board Mounted 10 Gauge Direct or Banana Plug Direct Speaker Connectors Fly Cut Billet Aluminum End Plates Fully Adjustable Mounting Feet SPECIFICATIONS Frequency Response 10 50 000 Hz Signal to Noise Ratio 100dB THD 0 03 Channel Sepa...

Page 4: ...Stereo 24 dB oct Lowpass Mono ch 3 4 Alignment Butterworth FUSE RECOMMENDATIONS D5 Professional Reference Series Amplifiers come with circuit board mounted fusing In addition to that 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 v...

Page 5: ...d airtight panels Let the amplifier breathe Without air circulation your amplifier will shut down its power output to protect itself D5 Professional Reference Amplifiers do not utilize any fan driven 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 should be able the flow over the top and ...

Page 6: ...er for both the vehicle AND the audio system a high output alternator should be installed for best performance A Word About Batteries and High Output Alternators The battery in your car is a chemical storage device for electrical energy generated by the alternator It is capable of briefly supplying high currents for cold starting the vehicle as well as powering other important electrical loads eit...

Page 7: ...s brake or fuel lines computers etc Remove any paint and carpet glue to a spot approximately 1 inch in diameter Drill a hole into the middle of this area Cut a length of ground cable long enough to go from the ground point to the amplifier Terminate the ground cable with a ring connector and attach it to the bare metal using a bolt star washer and nut Seal the area from above and below to prevent ...

Page 8: ...e the total wattage number D5 600 4 600 W 4 Ohms Mono 5 1200 W 1200 W 100 A Total Current Draw 12 V Note If you are installing multiple amplifiers add up the total current draw for all of them and choose the appropriate gauge based on the grand total TURN ON CONNECTION REMOTE Locate the terminal labeled REMOTE between the ground and 12V power connection points on the end of the amplifier Your sour...

Page 9: ...he speaker block Remove the set screw completely and insert the Banana Jack into the end of the block BRIDGING All pairs of Diamond Audio D5 amplifier channels are capable of being bridged to a 4 Ohm mono output Creation of the mono channel is accomplished by using the left channel positive output connection of the amplifier for the speaker positive and the right channel negative output connection...

Page 10: ...y are completely out of the audio path The Ch 3 4 crossover also features a mono stereo switch that when pushed in to mono will series the two crossovers to a fourth order 24dB octave filter for subwoofer systems GAIN This control matches the output voltage of the source unit or processor to the amplifier inputs Rotating this control to the MIN mark counterclockwise configures your D5 amplifier to...

Page 11: ...s a subsonic filter if needed HIGHPASS ON OFF Pushing this button IN engages the Highpass filter Pushing this button OUT will bypass the filter HIGHPASS X 10 SELECT Pushing this button IN multiplies the highpass crossover frequencies times 10 1 5 kHz to 15 kHz Leaving the button OUT uses the highpass filter normally see highpass frequency section above for frequency points LOWPASS FREQUENCY Turnin...

Page 12: ...bles in every product installed BEFORE your amplifier until the problem is found Check RCA cables for open connections Repair as necessary No Check the speaker or speaker wires of the dead channel and repair as needed If speaker and wire are OK contact your authorized dealer 3 One or both pairs of amplifier channels squeal when operating One or more speaker wires are shorted or one or more speaker...

Page 13: ...11 Diamond Audio Technology D5 4 Channel 2 way Component Set With Passive Crossovers Source Unit RCA Subwoofer 4 Ohm Min Impedence SYSTEM DIAGRAM 1 ...

Page 14: ...Diamond Audio Technology 12 D5 4 Channel Source Unit 2 way Comp Set With Passive Crossovers Rear Fill Subwoofers 4 Ohm Min Impedence each D5 4 Channel Front RCA Rear RCA bridged SYSTEM DIAGRAM 2 ...

Page 15: ...2 way Component Set with Passive Crossovers 2 way Component Set with Passive Crossovers Subwoofers 4 Ohm Min Impedence each D5 4 Channel D5 4 Channel Source Unit Rear RCA Front RCA Sub Out EQ D5 4 Channel bridged SYSTEM DIAGRAM 3 ...

Page 16: ...e Crossovers 2 way Component Set with Passive Crossovers Subwoofers 1 Ohm Min Impedence D5 Class D Source Unit Right RCA Left RCA Sub Out EQ Subwoofers 1 Ohm Min Impedence D5 Class D Rear Fill Rear Fill D5 4 Channel D5 4 Channel bridged bridged SYSTEM DIAGRAM 4 ...

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