HARMAN Reference 3004A Amplifiers Owner’s Manual

HARMAN Reference 3004A Amplifiers

WHAT’S IN THE BOX

ACCESSING CONNECTORS/ CONTROL PANEL

1. Slide the panel cover down
2. Remove Panel Cover

MOUNTING THE AMP

Note:
It is recommended that you make all wire connections before mounting the amplifier.

IMPORTANT:
Disconnect the vehicle’s negative (-) battery tenninal before beginning the installation.

• Always wear protective eyewear when using tools.
• Choose a safe mounting location, away from moisture. Check clearances on both sides of a planned mounting surface. Be sure that screws or wires will not puncture brake lines, fuel lines, or wiring harnesses and that wire routing will not interfere with the safe vehicle operation. Use caution when drilling or cutting in the mounting area.
• Choose a location that provides enough air circulation.
• Do not mount the amplifier with the heat sink facing downward, as this interferes with cooling.
• Mount the amplifier so that it will not be damaged by the feet of backseat passengers or shifting cargo in the trunk.

WIRING FOR POWER AND GROUND

WIRING FOR INPUT SIGNAL

Note:
when using low-level signals and remote tum-on lead with the Reference 7005A, set the ‘TURN-ON MODE” switch to REM’ and the SUB “INPUT’ switch to ‘EXT’ and the “INPUT LEVEL’ switch to ‘LO’.

Note:
when using high-level signals, set the “TURN-ON MODE’ switch to ‘DC’ and the “INPUT LEVEL’ switch to ‘ Hl1 ‘. If no sound plays, change the ‘INPUT LEVEL’ switch to ‘Hl2’.

Reference 7005A high-level input signals

Note:
when using high-level signals with the Reference 7005A, set the ‘TURN-ON MODE’ switch to ‘DC’, the SUB ‘INPUT’ switch to iNT’, and the ‘INPUT LEVEL’ switch to ‘Hl1’. If no sound plays, change the ‘INPUT LEVEL’ switch to ‘Hl2″.

WIRING FOR OUTPUT

CONNECTING THE REMOTE BASS

CONTROLLER (REFERENCE 7005A ONLY)

SETTING GAIN, CROSSOVERS, AND BASS BOOST

Setting the gain

1. Start with GAIN control set to a minimum, and the crossover control rotated midway.
2. For the front and rear channels, choose music you’re familiar with. For the subwoofer channel on the Reference 7005A, choose music with substantial bass content.
3. Turn the volume control on your receiver to ¾ of its total output.
4. Adjust the GAIN control clockwise, listening carefully to the bass output. If you hear distortion, turn the GAIN control counterclockwise to decrease the gain.

Selecting the crossover mode
On the front and rear channels, you can select your preferred crossover mode.

• Choose HPF to allow only frequencies above a certain point to reach your speakers. Recommended if you’re using a subwoofer in your system, as it keeps low base from your full-range speakers.
• Choose LPF to allow only frequencies below a certain point to reach your speakers. Recommended if you’re bridging the front or rear channels to power a subwoofer.
• Choose FULL to allow all frequencies to reach your speakers. Recommended if you’re not using a subwoofer in your system.
  Note: The crossover mode for the subwoofer channel of the Reference 7005A is low-pass only.

Selecting the crossover frequency
Choose the crossover point to suit listening preferences. Turn the dials to the left to lower the crossover point and to the right to raise the crossover point. Exact crossover settings for coaxial speakers and subwoofers depend on your listening preferences.

• Selecting the subwoofer phase (Reference 7005Aonly)
  Switch the PHASE back and forth to determine which setting provides the cleanest bass output.

• Selecting the bass boost (Reference 7005Aonly)
  Adjust the BASS-BOOST control clockwise or counterclockwise to suit your taste.

SPECIFICATIONS

SPECIFICATIONS

• No audio and POWER INDICATOR is off.
  No voltage at BATT+ and/or REM terminals, or bad or no ground connection. Check voltages at amplifier terminals with VOM.

• No audio and PROTECT INDICATOR flashes every 4 seconds.
  DC voltage on amplifier output. Amplifier may need service; see enclosed warranty card for service information.

• No audio and PROTECT and POWER INDICATORS flash.
  Voltage less than 9V on BATT+ connection. Check vehicle charging system.

• No audio and PROTECT INDICATOR is on.
  Amplifier is overheated. Make sure amplifier cooling is not blocked at mounting location. Or, there may be voltage greater than 16V (or less than 8.5V) on BATT+ connection. Check vehicle charging system.

• Amplifier fuse keeps blowing.
  The wiring is connected incorrectly or there is a short circuit. Check wiring connections.

• Distorted audio.
  Gain is not set property. Check setting. Check wires for shorts or grounds. Amplifier or source unit may be defective.

• Distorted audio and PROTECT INDICATOR flashes.
  Short circuit in speaker or wire. Remove speaker leads one at a time to locate shorted speaker or wire, and repair.

• Music lacks dynamics or “punch”.
  Speakers have not connected property. Check speaker connections for proper polarity.

• Engine noise-whining or clicking-in system when the engine is on.
  Amplifier is picking up alternator noise. First, check ground connection on the amplifier – a loose or improper ground is one of the main causes for noise. Turn down gain. Move RCA audio cables away from power wires. Installing an alternator noise filter on power line between battery and alternator might also be necessary.

Series of high-performance mono, 4 and 5-channel car amplifiers

Infinity’s Reference 3004A amplifier will add plenty of muscle to your music without breaking a sweat, and it’ll look good doing it. This 4-channel powerhouse delivers 75 watts RMS to each of the front and rear speakers in your car. Into planning ahead? You could use this amp in 2-channel mode now to drive a couple subwoofers with 200 watts RMS each, then reassign it to your front and rear speakers when you get a bigger sub amp. Speaker-level inputs allow this amplifier to work in almost any system, even if you’re keeping your car’s factory radio. You can use the separate high- and low-pass filters on the front and rear channels to maximize the performance of your speakers or subs.

Features

• Compact size
• High and low-level input
• Variable crossover
• Low noise and distortion
• Input Level Control
• Full on-board protection
• Preamp Outputs
• Class H amp technology
• Turn-on mode

High performance 4 channel car amplifier

Compact size
Infinity Reference amplifiers have been engineered with a compact footprint to fit in more vehicles even if available space is limited.

High and low-level input
Speaker-level and low-level inputs allow the Reference 3004A to integrate with both aftermarket and factory car stereo systems.

Variable crossover
Unlike many amplifiers available at similar prices, the Infinity Reference 3004A features variable electronic crossovers circuits allowing for precise system tuning and performance.

Low noise and distortion
The Reference 3004A has been engineered using Balanced Differential Inputs to ensure low noise and distortion even at high output levels. This also makes it far less susceptible to line-induced radiated engine noise.

Input Level Control
When low-level inputs are used, this control adjusts the input sensitivity between 200mVrms and 2.0Vrms. When high-level inputs are used, this control adjusts the input sensitivity between 2Vrms and 20Vrms.

Full on-board protection
On-board circuitry protects the Reference 3004A from shorts, high-temperature, overvoltage and under-voltage. An LED indicator is provided to let you know when one of these conditions exists.

Preamp Outputs
Using multiple amplifiers, the Reference 3004A has full range preamp outputs allowing you to feed an additional amplifier without using splitters.

Class H amp technology
The Infinity Reference 3004A 4 channels subwoofer amplifier delivers 400-Watts RMS using a Class H amplifier design to ensure high output and minimum current draw.

Turn-on mode
This switch changes DC to REM to adapt with low-level signals or high-level signals, this is especially helpful as part of the remote turn-on lead of your installation more choice. A selectable “Turn-on mode” can protect battery to avoid current drain, when you don’t expect to turn on your amplifier.

What’s in the Box:

• One Reference 3004A four-channel amplifier
• 4 Bare wire-to-RCA adapters
• Four 30A ATO fuses (2 installed, 2 spares)
• Owner’s Manual
• 4 Mounting screws (M4 x 53mm)
• 2 Infinity decals
• 1 logo badge

Specifications:

• 4-channel car amplifier
•  75 watts RMS x 4 at 4 ohms
• (100 watts RMS x 4 at 2 ohms)
• 200 watts RMS x 2 at 4 ohms in bridged mode
• (4-ohm stable in bridged mode)
• Variable high- and low-pass filters (32–320Hz,
• 12dB/octave) on front and rear channels
• Preamp and speaker-level inputs
• Preamp outputs
• Fuse rating: 30A x 2
• 8-gauge power and ground leads recommended –
• wiring and hardware not included with amplifier
• W x H x D = 320mm x 55.5mm x 180mm
• W x H x D = 12-5/8″ x 2-3/16″ x 7-1/8″

HARMAN International Industries, Incorporated 8500 Balboa Boulevard, Northridge, CA 91329 USA www.infinityspeakers.com

© 2019 HARMAN International Industries, Incorporated. All rights reserved. Infinity is a trademark of HARMAN International Industries, Incorporated, registered in the United States and/or other countries. Features, specifications, and appearance are subject to change without notice.

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