GPX2200.1D - Receiver Crunch - Free user manual and instructions

Product type	Monoblock amplifier
Brand	Crunch
Model	GPX2200.1D
RMS output power	1 x 500 W @ 4 Ω 1 x 800 W @ 2 Ω 1 x 1100 W @ 1 Ω
Maximum output power	1 x 1000 W @ 4 Ω 1 x 1600 W @ 2 Ω 1 x 2200 W @ 1 Ω
Speaker impedance	1 - 8 Ω
Frequency response	10 - 160 Hz (-3 dB)
Total harmonic distortion	< 0.5 % (80 Hz)
Signal-to-noise ratio	105 dB
Input sensitivity	0.2 - 5 V
Input impedance	10 kΩ
Low-pass filter (LPF)	40 - 150 Hz, 12 dB/octave
Subsonic filter	10 - 35 Hz, 12 dB/octave
Bass boost	0 - 12 dB @ 40 Hz
Power supply	12 V (9 - 15 V), negative ground
Fuses	3 x 30 A
Dimensions (L × H × D)	254 × 46 × 300/330 mm
Special features	MASTER/SLAVE, remote bass level control, protection circuit (thermal and short-circuit)
Maintenance and cleaning	Clean with a dry, lint-free cloth. Avoid moisture and abrasive products.
Safety	Disconnect the battery before any installation. Use appropriate fuses. Respect polarity.

Frequently Asked Questions - GPX2200.1D Crunch

What is the power of the Crunch GPX2200.1D amplifier?

The RMS power is 500 W @ 4 Ω, 800 W @ 2 Ω and 1100 W @ 1 Ω. The maximum power reaches 2200 W @ 1 Ω.

How to connect the amplifier?

First connect the GND terminal to the battery ground, then the +12V terminal via a fuse (within 30 cm of the battery), and finally the REM terminal to the head unit's remote wire. Use a power cable of at least 10 mm².

What to do if the POWER/PROTECTION LED is red?

This indicates a short circuit, too low impedance, or overheating. Check the speaker connections and impedance (min. 1 Ω). Let the amplifier cool down if necessary.

How to adjust the input sensitivity (GAIN)?

Set the head unit volume to about 75% of its maximum, then turn the GAIN potentiometer until you get a moderate volume without distortion.

Can I use two GPX2200.1D amplifiers in MASTER/SLAVE?

Yes, connect the BRIDGE OUT output of the master to the RCA input of the slave. The master controls the crossover settings for both amplifiers.

What minimum impedance for speakers?

The impedance must not be lower than 1 Ω. Too low impedance can damage the amplifier.

How to use the remote bass level control?

Connect the supplied cable to the designated connector (Fig. 1, item 8) and place the remote within reach. You can then adjust the bass level from the driver's seat.

How to adjust the subsonic filter?

Turn the SUB SONIC potentiometer (Fig. 1, item 5) between 10 and 35 Hz. Make sure its value is lower than that of the low-pass filter (LPF), otherwise no sound will be audible.

Where to install the amplifier in the car?

Choose a well-ventilated place, preferably in the trunk. Avoid confined spaces or under carpets. Ensure the heat sinks are not obstructed.

What to do in case of engine noise in the speakers?

Keep audio cables (RCA) away from power cables. Check ground connections and clean contact points. Add an additional ground wire if necessary.

USER MANUAL GPX2200.1D Crunch

MONO CLASS D SUBWOOFER AMPLIFIER

INHALTSVERZEICHNISTABLE OF CONTENTTABLE DES MATIÈRESOMMARIOINDICE

DEU BEDIENUNGSANLEITUNG 3
ENG USER'S MANUAL 8
FRA MODE D'EMPLOI 13
ITA MANUALE D'USO 18
ESP MANUAL DE USO 23

ABBILDUNGEN / FIGURES / FIGURES / FIGURI / FIGURES 28

Please read the user's manual carefully before the installation and the first operation of the amplifier.

SPECIFICATIONS

GPX2200.1D

Output Power RMS

1 x 500 W @ 4 Ohms

1 x 800 W @ 2 Ohms

1x1100W@1Ohms

Output Power Max.

1 x 1000 W @ 4 Ohms

1 x 1600 W @ 2 Ohms

1 x 2200 W @ 1 Ohms

Loudspeaker impedance (stereo)

1-8 Ohms

Frequency Response

10-160 Hz (-3 dB)

Total Harmonic Distortion

< 0.5% (80 Hz)

Signal-to-Noise Ratio

105dB

Input Sensitivity

0,2-5V

Input Impedance

10 kOhm

Low Pass Filter

40-150Hz @ 12 dB/Octave

Subsonic Filter

10-35Hz@12dB/Octave

Bass Boost

0-12 dB @ 40 Hz

Operating Voltage

+12 V (9 - 15 V), negative ground

Fuse Rating

3 × 30 ~A

All Specifications are subject to change

DISPOSAL

If you need to dispose the device and its components, please note that no electronic devices may be disposed with the household waste.

Dispose the device and its components at an appropriate recycling facility in accordance with local waste regulations. If necessary, consult your local authority or dealer.

IMPORTANT NOTES PRIOR TO INSTALLATION

• This device is only suited for a 12 volt system with negative ground.
• The radiated heat while operation requires sufficient air circulation at the place of installation. It is very important that the heat sink fins do not have contact with any metal parts or any surfaces which could impair air circulation. The amplifier may not be installed in small closed location or spaces without air circulation (e.g. spare wheel recess or below the vehicle carpeting). We recommend the installation in the vehicle's trunk. Ensure sufficient protection against vibrations, dust and dirt.
• Ensure that the input and output cables are sufficiently separated from the power supply cables. Otherwise interferences may occur.
• Ensure the accessibility of the fuse and the operating elements after installation.
• The reliability and performance of the amplifier depends on the quality of installation. Preferably consult an expert to install the system, particularly if you want to install several loudspeakers.

INTERCONNECTION

POWER SUPPLY AND TURN-ON-CONNECTION

ATTENTION: Before you start with the installation, disconnect the ground connection from the vehicle's battery in order to prevent short circuits.

The power wiring which is usually installed in on-board car networks is not sufficient for a power amplifier's demands. Make sure that the power wires to GND and to the +12V terminal has been sufficiently specified. A cable-cross section of at least 10mm^2 must be used to connect the battery to the amplifier's terminals.

First connect the GND terminal of the amplifier to an appropriate ground connection at the chassis. To ensure a good connection, residue dirt and dust from the connection point. A loose connection may cause malfunctions or interferences noise and distortion.

Then connect the +12V terminal of the amplifier with the battery by using an appropriate cable including an in-line fuse. This fuse should be located very close to the battery; for safety reasons not more than 30~cm away. Only insert the fuse when the installation, including the connection of the loudspeakers, has been accomplished.

Then connect the remote turn-on-wire from the head unit with the amplifier's REMOTE terminal. A cable with a cross section of 0.5mm^2 is adequate.

LOUDSPEAKER CONNECTIONS

• The total impedance must not be lower than 1 ohm.
• Never connect loudspeaker cables with the ground of the chassis or the +12V supply voltage.

If the amplifier is operated with a too low impedance or incorrectly used, the entire sound system may be damaged. This means a warranty void in such cases.

AUDIO SIGNAL CABLES

When installing the audio cables between the RCA outputs of the head unit and the RCA inputs of the amplifier, the audio and power supply cables should, if possible, not be routed along the same side of the vehicle. We recommend a separated installation, e.g. routing the power cable through the cable channel on the left side and the audio cables through the cable channel of the vehicle on the right side or vice versa. This prevents interferences due to crosstalk into the audio signal.

OPERATING ELEMENTS

INPUT SENSITIVITY

Turn the GAIN (Fig. 1,3) controller of the amplifier to the MIN position. Then turn the volume controller of the head unit to 80 - 90% of its full setting. Now turn GAIN clockwise until you hear some distortion. Then turn back the GAIN slightly until you hear a cleaner sound.

The PHASE SHIFT controller (Fig. 1,4) allows to adjust the phase between 0^ and 180^ to match the output signal with the vehicle's interior acoustic.

VARIABLE SUBSONIC FILTER

With the SUB SONIC controller (Fig. 1,5) you can adjust the lower crossover frequency, to filter the very low frequencies to relieve the subwoofer or to generate a bandpass signal. If you don't want to use this function, turn the controller (Fig. 1,5) to the very left to the 10Hz position.

NOTE: The adjusted value of the SUB SONIC (Fig. 1,5) should not be higher than the adjusted value of the LPF controller (Fig. 1,6). Otherwise no sound will be audible.

VARIABLE LOW PASS FILTER

Set the desired crossover frequency by using the controller LPF (Fig. 1,6). Thus to that only the frequencies below the chosen crossover frequency will be amplified and the subwoofer plays more precisely and efficient.

VARIABLE BASS BOOST

With the bass boost controller (Fig. 1,7) you are able to adjust the bass level from 0 - 12 dB. Attention: Use the BASS BOOST wisely!

With the included bass level cable remote controller you are able to adjust the bass level e.g. out of the driver's seat.

The MASTER/SLAVE Operation allows to link two identical GPX2200.1D amplifiers. The advantage of this function is, that the crossover section of amplifier 2 will be bypassed and for both amplifiers the same crossover settings come into operation, which can be adjusted on the MASTER amplifier. Then b work together as one big monoblock. Please refer to section "MASTER/SLAVE OPERATION WITH TWO GPX2200.1D" on page 11 and the figures 5a to 5c on the very last page.

PROTECTION CIRCUIT

The POWER/PROTECTION LED (Fig. 1,9) lights up green, if the amplifier is in operation.

The POWER/PROTECTION LED (Fig. 1,9) lights up red, when the amplifier is overheated, or a short circuit occurs resp. a too low impedance load is connected to the speaker outputs. If this events, the internal built-in protection circuit shuts down the amplifier automatically. The amplifier should work again properly after you have solved the problems.

FIGURES (P. 28-31)

CONNECTIONS AND CONTROLLER (FIG. 1)

(1) Mono audio input (OUT), leading to an additional GPX2200.1D
(1b) Mono audio input (LINE INPUT), coming from an additional GPX2200.1D
(2) Audio signal inputs
(3) Gain level controller
(4) Phase Shift controller
(5) Subsonic filter controller
(6) Low Pass filter controller
(7) Bass Boost controller
(8) Connector for the included bass level remote controller
(9) Power-/Protection-LED

POWER SUPPLY AND TURN ON CONNECTION (FIG. 2)

(1) GND terminal for the ground
(2) REM terminal for the turn on connection
(3) +12V terminal for the positive-connection of the battery
(4) Vehicle's battery
(5) In-Line Fuse (not included in the scope of delivery)
(6) Turn on wire from the head unit or the electrical antenna
(7) Fuse

1-CHANNEL OPERATION MONO 1 SUBWOOFER (FIG.3)

If you want to run the amplifier with the 2 line output channels from the head unit to drive a subwoofer, connect the following setup:

(1) To the head unit, line output left or subwoofer output
(2) To the head unit, line output right or subwoofer output
(3) Bass level remote controller
(4) Subwoofer (1 - 8 Ω)

1-CHANNEL OPERATION MONO 2 SUBWOOFERS (FIG. 4)

If you want to run the amplifier with the 2 line output channels from the head unit to drive two subwoofoers, connect the following setup:

(1) To the head unit, line output rear left or subwoofer output
(2) To the head unit, line output rear right or subwoofer output
(3) Bass level remote controller
(4) Subwoofer 1 (2 - 8 Ω)
(5) Subwoofer 2 (2 - 8 Ω)

MASTER/SLAVE OPERATION WITH TWO GPX2200.1D (FIG. 5a-5c)

If you want to run amplifier 1 (MASTER) with two line output channels from the head unit and the additional amplifier 2 via BRIDGE OUT (Fig. 1,1a), connect the following setup:

(1) To the head unit, line output left
(2) To the head unit, line output right
(3) Bass remote control to adjust the bass level out of the driver's seat
(4) RCA Connection between MASTER and SLAVE

If each of both amplifiers should drive one subwoofer, connect the following setup:

(5) Subwoofer 1 (1-8 Ohms)
(6) Subwoofer 2 (1-8 Ohms), connected with reversed polarity on the SLAVE amplifier (- to +) .

If both amplifiers should drive one subwoofer together, connect the following setup:

(7) Subwoofer (2-8 Ohms)
(8) The subwoofer must be connected at the Slave amplifier with reverse polarity (- to +)
(9) MASTER and SLAVE must be connected at both minus/negative speaker terminals

IMPORTANT!

Always observe the correct polarity of all connections!

TROUBLESHOOTING

If you are having problems after installation follow the Troubleshooting procedures below.

Procedure 1:

Check Amplifier for proper connections.

POWER/PROTECTION LED lights up green. In this case skip to Step 3, if not continue.

1. Check in-line fuse on battery positive cable. Replace if necessary.
2. Check fuse(s) on amplifier. Replace if necessary.
3. Verify that Ground connection is connected to clean metal on the vehicle's chassis. Repair/replace if necessary.
4. Verify there is 9 to 16 Volts present at the positive battery and remote turn-on cable. Verify quality connections for both cables at amplifier, stereo, and battery/fuse holder. Repair/replace if necessary.

Procedure 2:

POWER/PROTECTION LED lights up red.

1. If the LED lights up red it is a sign of a possible short in the speaker connections. Check for proper speaker connections and use an ohm meter to check for possible shorts in the speaker wiring. Too low speaker impedance may also cause PROTECTION to light. This can also be a sign of driving the amplifier at very high power gains without adequate airflow around the amplifier. Shut off the system and allow amplifier to cool. Check that the vehicle charging system is maintaining proper voltage. If the previous items do not solve the problem, a fault may be in the amplifier. In this case you should contact your dealer.

Procedure 3:

Check Amplifier for audio output.

1. Verify good RCA input connections at stereo and amplifier. Check entire length of cables for kinks, splices, etc. Test RCA inputs for AC volts with stereo on. Repair/replace if necessary.

Procedure 4:

Check Amplifier for a popping noise while turning on.

1. Disconnect input signal to amplifier and turn amplifier on and off.

2. If the noise is eliminated, connect the REMOTE lead of amplifier to source unit with a delay turn-on module.

Procedure 5:

Check Amplifier if you experience excess Engine Noise.

1. Route all signal carrying wires (RCA, Speaker cables) away from power and ground wires.
   OR
2. Bypass any and all electrical components between the head unit and the amplifier(s). Connect stereo directly to input of amplifier. If noise goes away the unit being bypassed is the cause of the noise.
   OR
3. Remove existing ground wires for all electrical components. Reground wires to different locations.

Verify that grounding location is clean, shiny metal free of paint, rust etc.

OR

1. Add secondary ground cable from negative battery terminal to the chassis metal or engine block of vehicle.

OR

1. Have alternator and battery load tested by your mechanic. Verify good working order of vehicle electrical system including distributor, spark plugs, spark plug wires, voltage regulator etc.

Bass Boost

0 - 12 dB @ 40 Hz

Dimensioni (L x A x P)

254 x 46 x 300/330 mm

CONTROLLO REMOTO DAL LIVELLO DEI BASSI

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