Reference 7005A - Audio Receiver INFINITY - Free user manual and instructions

Product Type	Audio Receiver (amplifier)
Brand	Infinity
Model	Reference 7005A
Dimensions (W x H x D)	360 mm x 56 mm x 180 mm
Weight	4.02 kg
Power Supply	9-16 V DC, 30 A x 3 fuse
Output Power (4 Ω)	4 x 50 W RMS + 1 x 320 W RMS
Output Power (2 Ω)	4 x 75 W RMS + 1 x 500 W RMS
Bridged Power (4 Ω)	2 x 150 W RMS
Frequency Response	10 - 40 kHz (front/rear), 10 - 320 Hz (subwoofer)
Crossover Filter	High-pass/Low-pass 32-320 Hz, 12 dB/octave
Input Sensitivity (line)	200 mV - 2.0 V RMS
Input Sensitivity (high level)	2.0 V - 20 V RMS
Signal-to-Noise Ratio	80 dB
Total Harmonic Distortion	< 1%
Main Functions	Gain adjustment, variable crossover, bass boost, bass remote
Safety	Overheat, short-circuit, undervoltage and overvoltage protection
Maintenance and Cleaning	Clean with a dry, soft cloth
Spare Parts and Reparability	Replaceable fuse, standard wiring

Frequently Asked Questions - Reference 7005A INFINITY

How to install the Infinity Reference 7005A amplifier?

Choose a dry location with good air circulation. Mount the amplifier so as not to obstruct passengers. Disconnect the negative battery terminal before installation. Wear safety glasses.

How to wire the power and ground?

Connect the BATT+ wire to the positive battery terminal via a fuse. Connect REM to a control signal (ignition). Connect the ground (GND) to a clean chassis ground point. Use 4 AWG gauge cable.

How to adjust the amplifier gain?

Start with the gain at minimum. Turn up the source volume to 3/4. Gradually increase the gain until you hear distortion, then reduce slightly.

What do HPF, LPF and FULL modes mean?

HPF (high-pass) lets high frequencies pass, ideal with a subwoofer. LPF (low-pass) keeps bass, for full-range speakers. FULL passes the entire spectrum, no subwoofer.

How to resolve no sound with power indicator off?

Check voltages at BATT+ and REM terminals with a voltmeter. Ensure ground is correct. Check the fuse and connections.

Why does the protection indicator flash every 4 seconds?

This indicates a DC voltage at output. The amplifier may need servicing. Consult warranty.

How to prevent amplifier overheating?

Mount the amplifier in a ventilated place, do not point the heatsink downward. Ensure nothing obstructs air circulation.

How to eliminate engine noise (whine)?

First check ground connections. Reduce gain. Route RCA cables away from power wires. If necessary, install an alternator filter.

What is the function of the bass remote?

The bass remote (optional) allows remote adjustment of the subwoofer level without accessing the amplifier.

What are the fuse specifications?

The amplifier uses 3 fuses of 30 A each. Use identical replacement fuses.

USER MANUAL Reference 7005A INFINITY

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Owner's Manual EN

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EN

MOUNTING THE AMP

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

ACCESSING CONNECTORS/ CONTROL PANEL

1. Slide the panel cover down
   

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IMPORTANT: Disconnect the vehicle's negative (−) battery terminal 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

At amplifier:

At ground location:

WIRING FOR INPUT SIGNAL

Reference 3004A low-level signals

Note: when using low-level signals and remote turn-on lead, set the "TURN ON MODE" and the " " REM INPUT LEVEL switch to "LO

Reference 7005A low-level signals

Note: when using low-level signals and remote turn-on lead with the Reference 7005A, set the "TURN-ON-MODE REM" and the SUB "INSMICH to " " and EKG" " INPUT LEVEL switch to "LO

Reference 3004A high-level signals

Note: when using high-level signals, set the "TURN-ON MODE switch to "DC" and the "INPUT LEVEL" switch to "HI1". If no sound plays, change the "INPUT LEVEL". HI2

Reference 7005A high-level input signals

Note: when using high-level signals with the Reference 7005A, set the "TURN-ON-MODE" the SUB " " Switch INPUT to "INT", and the "INPUT LEVEL" switch to "HI1". If no sound plays, change the "INPUT LEVEL". HI2

WIRING FOR OUTPUT

Reference 3004A 4-channel output (4ohm/2ohm)

Reference 3004A 3-channel output (Font: 4ohm/2ohm; Rear:4ohm)

Reference 3004A 2-channel output (4ohm)

graph TD
    A["Terminal Block"] --> B["Subwoofer"]
    B --> C["Terminal Block"]
    C --> D["Subwoofer"]
    style A fill:#f9f,stroke:#333
    style D fill:#bbf,stroke:#333

Reference 7005A 5-channel output (4ohm/2ohm)

CONNECTING THE REMOTE BASS CONTROLLER (REFERENCE 7005A ONLY)

SETTING GAIN, CROSSOVERS, AND BASS BOOST

Setting the gain

1. Start with GAIN control set to 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 34 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 7005A only)

Switch the PHASE back and forth to determine which setting provides the most clean bass output.

Selecting the bass boost (Reference 7005A only)

Adjust the BASS-BOOST control clockwise or counterclockwise to suit your taste.

SPECIFICATIONS

	Reference 3004A	Reference 7005A
Power output @ 4 ohms	75 watts RMS x 4	50 watts RMS x 4, 320 watts x 1
Power output @ 2 ohms	100 watts RMS x 4	75 watts RMS x 4, 500 watts x 1
Power output in bridged mode	200 watts RMS x 2 at 4 ohms	150 watts RMS x 2 at 4 ohms
Frequency response	10-40 K Hz	10-40 K Hz / 10-320 Hz
Crossover frequencies	32-320 Hz variable, 12 dB/ octave	32-320 Hz variable high- and low-pass (front and rear); 32-320 Hz low-pass (subwoofer); 12 dB/ octave
Line-level input sensitivity	200 mVrms - 2.0 Vrms	200 mVrms - 2.0 Vrms
High-level input sensitivity	2.0 Vrms - 20 Vrms	2.0 Vrms - 20 Vrms
Signal-to-noise ratio >80 dB >80 dB
THD+N @ rated power	<1% <1%
Fuse rating 30 x 2 30 x 3
Operating voltage 9~16 V 9~16 V
Dimensions (W x H x D)	12-5/8" x 2-3/16" x 7-1/8" (320 mm x 55.5 mm x 180 mm)	14-3/16" x 2-3/16" x 7-1/8" (360 mm x 56 mm x 180 mm)
Weight 3.15 kg 4.02 kg
Recommended wire gauge	8	4

TROUBLESHOOTING

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 properly. 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 are not connected properly. 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.

HVAD ER DER I AESKEN

1. Fjern paneldækslet
   

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DA

MONTERING AF FORSTÆRKEREN

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1. Abdeckung entfernen
   

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MONTAJE DEL AMPLIFICADOR

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VAHVISTIMEN ASENTAMINEN

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JOHDOTUS, VIRTA JA MAA

Vahvistimessa:

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1. Retirez le couvercle.
   

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MONTAGE DE L'AMPLIFICATEUR

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MONTAGGIO DELL'AMPLIFICATORE

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1. Verwijder het kapje
   

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DE VERSTERKER MONTEREN

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Reference 3004A low-level signals
NL

Reference 3004A high-level signalen

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VERSTERKING (GAIN), CROSSOVERS EN BASVERSTERKING INSTELLEN

Versterking (gain) instellen

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1. Usuń pokrywę panelu
   

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MONTAŻ WZMACNIACZA

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1. Retire a tampa do painel
   

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MONTAGEM DO AMPLIFICADOR

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MONTERING AV FÖRSTÄRKAREN

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STÄLLA IN FÖRSTÄRKNING, DELNINGSFILTER OCH BASFÖRSTÄRKNING

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AMPLIFIKATÖRÜN MONTAJI

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GÜÇ VE TOPRAKLAMA KABLOLAMA

Amplifikatörde:

1. 取下面板盖
   

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安装放大器

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2.取下面板蓋

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安装功放

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MEMASANG AMPLIFIER

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SAMBUNGAN KABEL DAYA DAN GROUND

Pada amplifier:

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アンプの取り付け

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電源とアース用配線

アンプでの配線:

2.패널 덮개를 분리합니다.

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앤프 장착

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