TA1800 - Receiver Autotek - Free user manual and instructions

USER MANUAL TA1800 Autotek

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

SPECIFICATIONS	TA1800
Output Power RMS	1 x 400 W @ 4 Ohms 1 x 600 W @ 2 Ohms 1 x 800 W @ 1 Ohms
Output Power Max.	1 x 800 W @ 4 Ohms 1 x 1200 W @ 2 Ohms 1 x 1600 W @ 1 Ohms
Loudspeaker impedance (stereo)	1 - 8 Ohms
Frequency Response	20 - 250 Hz (-3 dB)
Total Harmonic Distortion	< 0,1 % (80 Hz)
Signal-to-Noise Ratio	> 90 dB
Input Sensitivity	0,2 - 2 V (High) 2 - 8 V (Low)
Input Impedance	47 kOhms
Low Pass Filter	30 - 250 Hz @ 12 dB/Octave
Subsonic Filter	20 - 50 Hz @ 12 dB/Octave
Phase Shift	0 - 180°
Bass EQ	0 - 18 dB @ 45 Hz
Line Outputs	Stereo, fullrange
Operating Voltage	+12 V (9 - 15 V), negative ground
Fuse Rating	2 x 40 A
Dimensions (B x H x L)	223 x 63 x 320/346 mm
All Specifications are subject to change

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 heatsink 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 REM terminal. A cable with a cross-section of 0.5mm^2 is adequate.

LOUDSPEAKER CONNECTIONS

• The total impedance must not be lower than 1 ohms.
• 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.

SIGNAL OUTPUTS FOR ADDITIONAL AMPLIFIERS

The input signal on the LINE INPUT jacks (Fig. 1,5) will be routed in stereo to the output jacks LINE OUTPUT (Fig. 1,6). Thus the LINE OUTPUT jack allows the connection of a additional amplifier.

OPERATING ELEMENTS

INPUT SENSITIVITY

Turn the GAIN controller (Fig. 1,3) 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 (Fig. 1,3) slightly until you hear a cleaner sound.

The "Input Sensitivity" (Fig. 1.2) switch allows to set the input sensitivity from "0.2V - 2V" to "2V - 8V".

VARIABLE LOW PASS FILTER

Set the desired cross-over frequency by using the controller LPF (Fig. 1,7). Thus to that only the frequencies below the chosen cross-over frequency will be amplified and the subwoofer plays more precisely and efficient.

VARIABLE BASS EQ

With the BASS EQ controller (Fig. 1,8) you are able to adjust the bass level from 0 - 18 dB.

Attention: Use the BASS EQ wisely!

VARIABLE SUBSONIC FILTER

With the SUBSONIC controller (Fig. 1,4) you can adjust the lower cross-over frequency, to filter out 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. 1,4) to the very left to the 20Hz position.

NOTE: The adjusted value of the SUBSONIC (Fig. 1,4) should not be higher than the adjusted value of the LPF controller (Fig. 1,7). Otherwise no sound will be audible.

VARIABLE PHASE

The PHASE controller (Fig. 1,10) allows to set the phase between 0^ and 180^ to match the run time of the output signal with the vehicle's interior acoustic.

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 TA1800 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 amplifier 1. Then both amplifiers work together as one big monoblock. Please refer to section "MASTER/SLAVE OPERATION WITH TWO TA1800" on page 12 and the figures 5a to 5c on the very last page.

PROTECTION CIRCUIT

The Operation-LED (POWER, fig. 1,1) lits up, if the amplifier is in operation.

The protection LED (PROTECT, fig. 1,1) lits up, 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) PROTECT-LED and POWER-LED
(2) Input Sensitivity Switch
(3) Gain level controller
(4) Sub Sonic filter controller
(5) Audio signal inputs
(6) Audio signal outputs for additional amplifiers
(7) Low Pass filter controller
(8) BASS EQ controller
(9) Connector for the included bass level remote controller
(10) PHASE controller

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(s)
(8) MASTER/SLAVE switch
(9) Connector for the included MASTER/SLAVE DATA LINK cable

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 left or subwoofer output
(2) To the head unit, line output 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 TA1800 (FIG. 5a-5c)

If you want to run amplifier 1 with the 2 line output channels from the head unit and amplifier 2 should be controlled via BRIDGE MODE (Fig. 2,9), 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

Note: Set the switch BRIDGED MODE (Fig. 2,8) on amplifier 1 to position "MASTER" and on amplifier 2 to position "SLAVE".

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

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

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

(7) Subwoofer (2 - 8) , connected with reversed polarity on the amplifier SLAVE (-t o +) .
(8) 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.

Verify that POWER LED is on. If POWER LED is on 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, head unit, and battery/fuse holder. Repair/replace if necessary.

Procedure 2:

PROTECT LED is on.

1. If the PROTECT light is on, 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 amplifier at very high power levels 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 head unit and amplifier. Check entire length of cables for kinks, splices, etc. Test RCA inputs for AC volts with head unit 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.

OR

1. Use a different 12 Volt source for remote lead of amplifier (i.e. battery direct).
2. If the noise is eliminated, use a relay to isolate the amplifier from noisy turn-on output.

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

1. Bypass any and all electrical components between the head unit and the amplifier(s). Connect head unit directly to input of amplifier. If noise goes away the unit being bypassed is the cause of the noise.

OR

1. 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.

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