Signum SXE150.4 - Receiver ESX - Free user manual and instructions

USER MANUAL Signum SXE150.4 ESX

4 x RCA (CH 1-4) Via enclosed Cable Jack (CH 1-4) Only via High Level Inputs +12 V (9 – 15 V), negative ground 3 x 30 A 220 x 53 x 390 mm All Specications are subject to change9

IMPORTANT NOTES PRIOR TO INSTALLATION

- This device is only suited for a 12 volt system with negative ground. - The radiated heat while operation requires sufcient air circulation at the place of installation. It is very important that the heat sink ns do not have contact with any metal parts or any surfaces which could impair air circulation. The amplier 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 sufcient protection against vibrations, dust and dirt. - Ensure that the input and output cables are sufciently 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 amplier depends on the quality of installation. Preferably consult an expert to install the system, particularly if you want to install several loudspeakers.

POWER SUPPLY AND TURN-ON-CONNECTION

ATTENTION: Before you start with the installation, disconnect the ground connection from the ve- hicle’s battery in order to prevent short circuits. The power wiring which is usually installed in on-board car networks is not sufcient for a power amplier‘s demands. Make sure that the power wires to GND and to the +12 V terminal has been sufciently specied. A cable cross section of at least 10 mm

must be used to connect the battery to the amplier‘s terminals. First connect the GND terminal of the amplier 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 +12 V terminal of the amplier 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 ac- complished. Then connect the remote turn-on-wire from the head unit with the amplier‘s REM terminal. A cable with a cross-section of 0.5 mm

is adequate. LOUDSPEAKER CONNECTION - In 4-channel operation (i.e. one loudspeaker on each amplier channel), the impedance must not be lower than 2 ohms for each speaker - In bridging mode (two amplier outputs combined) the impedance must not be lower than 4 ohms for the bridged output. - Never connect loudspeaker cables with the ground of the chassis or the +12 V supply voltage. If the amplier is operated with a too low impedance or incorrectly used, the entire sound system may be dam- aged. This means a warranty void in such cases.

When installing the audio cables between the RCA outputs of the head unit and the RCA inputs of the ampli- er (Fig. 1,5), 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.10

INPUT SENSITIVITY CH1/2 & CH3/4

Turn the controller LEVEL INPUT (Fig. 1,4 and g. 1,6) of the amplier to the MIN position. Then turn the vol- ume controller of the head unit to 80 - 90% of its full setting. Now turn LEVEL INPUT clockwise until you hear some distortion. Then turn back the LEVEL INPUT slightly until you hear a cleaner sound.

VARIABLE HIGH PASS FILTER CH1/2 & CH3/4

If the amplier is to be used for mid-range/tweeter loudspeakers, set the switches X-OVER (Fig. 1,3 and g. 1,9) to HP. Then set the desired cross-over frequency on the HIGH PASS controller (Fig. 1,2 or g. 1,8). Thus to that only the frequencies above the chosen cross-over frequency will be amplied. This effectively minimizes distortions and overloads at lower frequencies. A good point to start is at 125 Hz. If you use big loudspeakers (>20 cm) set X-OVER (Fig. 1,3 and g. 1,9) to FULL. In this case, the HIGH PASS controllers (Fig. 1,2 or g. 1,8) are without function.

VARIABLE BASS BOOST CH3/4

By using the controller BASS BOOST (Fig. 1,11) you are able to increase the bass enhancement from 0 to 12 dB. ATTENTION: Use the BASS BOOST wisely!

HIGH LEVEL INPUTS & AUTO TURN ON

The high level inputs under HI INPUT (Fig. 5) is suitable to connect the device input with speaker wires, if your head unit is not equipped with pre-amplier RCA outputs. Extend therefor every regarding speaker cable from your head unit with appropriate speaker cables from your car audio retailer to the mounting location of the am- plier. Then connect the each matching loudspeaker cable with the cables of the included High Level Input jack. CAUTION: Never use the high level inputs and the RCA inputs at the same time. This may damage the device seriously. The amplier detects a voltage rise (6 Volts) with a so called ”DC Offset” over the connected input signal on the high level inputs under HI INPUT (Fig. 5) when the head unit will be switched on. Hence, the amplier will also be turned on. As soon as the head unit will be turned off, the amplier turns also automatically off. In this case the turn-on connection REM (Fig. 2,2) is not needed. NOTE: The Auto Turn On function usually works with 90% of all head units, because they are equipped with ”High Power”-outputs. Only with a few older and head units the Auto Turn On function is not working. INPUT MODE By setting the switch INPUT MODE (Fig. 1,7) to the 2CH position, you switch the inputs to a 2-channel mode, which allows a four-channel operation with only occupying the inputs CH1/2.

VARIABLE LOW PASS FILTER CH3/4

If the amplier is used to drive a subwoofer on CH3/4, set the switch X-OVER (Fig. 1,9) to LP/BP. Set the desired cross-over frequency by using the controller LOW PASS (Fig. 1,10). Thus to that only the frequencies below the chosen cross-over frequency will be amplied and the subwoofer plays more precise and efcient. In LP/BP mode, the controller HIGH PASS (Fig. 1,8) can also be used to limit the frequency response down- wards, for example to produce a bandpass/subsonic signal. NOTE: If the controller HIGH PASS (Fig. 1,8) is set higher than the he controller LOW PASS (Fig. 1,10), no audio signal is heard.11 FIGURES (P. 28-31) CONNECTIONS AND CONTROLLERS (FIG. 1) (1) Power-/Protection-LED (2) HIGH PASS controller CH1/2 (3) Selector HP (Highpass) – FULL CH1/2 (4) LEVEL INPUT controller CH1/2

(5) LINE INPUT CH1/2 & CH3/4

(6) LEVEL INPUT controller CH3/4 (7) Selector INPUT MODE 2CH/4CH (8) HIGH PASS lter controller CH3/4 (9) Selector HP (Highpass) – FULL – LP/BP (Lowpass/Bandpass) CH3/4 (10) LOW PASS / BAND PASS controller CH3/4 (11) BASS BOOST controller CH3/4 POWER SUPPLY AND TURN ON CONNECTION (FIG. 2) (1) GND terminal for the ground (2) REM terminal for the turn on connection (3) +12 V 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(s) 4-CHANNEL OPERATION STEREO (FIG. 3) If you want to run the amplier with the 4 line output channels* from the head unit to drive four loudspeakers in stereo, connect the following setup: (1) To the head unit, line output left FRONT L/CH1 (2) To the head unit, line output right FRONT R/CH2 (3) To the head unit, line output left REAR L/CH3 (4) To the head unit, line output right REAR R/CH4 (5) Loudspeaker left REAR L/CH3 (6) Loudspeaker right REAR R/CH4 (7) Loudspeaker left FRONT L/CH1 (8) Loudspeaker right FRONT R/CH2 3-CHANNEL OPERATION STEREO & MONO (FIG. 4) If you want to run the amplier with the 4 line output channels* the head unit to drive a pair of loudspeakers and a subwoofer, connect the following setup: (1) To the head unit, line output left FRONT L/CH1 (2) To the head unit, line output right FRONT R/CH2 (3) To the head unit, line output left REAR L/CH3 or subwoofer output (4) To the head unit, line output right REAR R/CH4 or subwoofer output (5) Loudspeaker left FRONT L/CH1 (6) Loudspeaker right FRONT R/CH2 (7) Subwoofer

• If your head unit only has two output channels, connect CH1 and CH2 and set the switch INPUT MODE to position 2CH.12 TROUBLESHOOTING If you are having problems after installation follow the Troubleshooting procedures below. Procedure 1: Check Amplier for proper connections. Verify that POWER/PROTECTION LED lights up green. If this is the 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 amplier. 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 amplier, stereo, and battery/fuse holder. Repair/replace if necessary. Procedure 2: POWER/PROTECTION LED lights up red. 1. If the PROTECT lights up red, this 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 amplier at very high power gains without adequate airow around the amplier. Shut off the system and allow amplier 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 amplier. In this case you should contact your dealer. Procedure 3: Check Amplier for audio output.

1. Verify good RCA input connections at stereo and amplier. 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 Amplier for a popping noise while turning on.

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

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

Procedure 5: Check Amplier if you experience excess Engine Noise.

1. Route all signal carrying wires (RCA, speaker cables) away from power and ground wires.

2. Bypass any and all electrical components between the head unit and the amplier(s). Connect stereo

directly to input of amplier. If noise goes away the unit being bypassed is the cause of the noise.

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.

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