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Audison measurement standards
(Power measures taken according to audison standard, 1998 edition)
- 12VDC and 13.8VDC;
- 1 kHz or crossover cut-off frequency;
- 0.3% THD @ nominal power; 1% THD @ continuous power;
- Tolerance: +10%; -5%;
- Continous power given by RMS Voltage measured on resistive load;
- The nominal power of the amplifier is measured upon a battery voltage of 12 Volts with
a 4 Ohm load and with all channels in function.
OWNER’S MANUAL
CAR POWER AMPLIFIER
is a division of
62018 P
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INTRODUCTION INTRODUCTION Audison thanks you for preferring this product and compliments you on your choice since it was designed in order to insure outstanding musical and instrumental performances. Before use instructions, please carefully read the safety norms you have to respect in order to avoid unpleasant inconveniences and to enjoy this product at best. PRECAUTIONS - Avoid to install the amplifier where temperature is below 0°C or above 55°C and in non ventilated places. - The amplifier n
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CONTENTS INSTALLATION audison cable PRODUCTS FOR ELECTRIC CONNECTIONS Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4 In-Out panel Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Power supply panel Functio
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DESCRIPTION INSTALLATION Audison LRx 4.300: AMPLIFIER FIXING Four channel car power amplifier characterised by excellent musical performances, small size and outstanding energy reserve. Its PWM power supply stage is made with two pairs of 70A MOSFETs; it is stabilised and oversize. Input stage is provided with a special circuit (LNS) which permits the system disturbances rejection, reducing noise that is usually due to the vehicle electric parts (alternator, electronic injection, etc.), without
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INSTALLATION IN-OUT PANEL LOGO ROTATION FUNCTIONS 1 - Remove the transparent 1 cover which protects controls and then the 4 CH A/HI-PASS, CH B/LO-PASS screws which block the Power outputs of the amplifier left and right channels. metal plate by using Connect the speakers cables to these outputs according multispanner. to polarity. Terminal blocks accept cables up to 9 A.W.G. max (see “audison cable products for electronic connections” as far as their size is concerned). We recommend the use
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+ + + + + POWER SUPPLY PANEL CONFIGURATION EXAMPLES FUNCTIONS FRONT+REAR+SUB 1 REMOTE IN Terminal to connect Remote cable, which comes from the source and which controls the amplifier switching on. Applied Pre Out voltage must be between 7 and 15VDC. Front Rear 2 POWER IN OUT REMOTE LRx 1.400 LRx 4.300 Config. 4 Config. 1 Config. 1 3 1 FUSE + + 4 + 5 2 REMOTE OUT + Terminal to repeat the switching on control (Remote IN) coming from the source. It is used to switch on another amplifier or devic
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+ + + CONFIGURATION EXAMPLES POWER SUPPLY PANEL FRONT+SUB FUSE REPLACEMENT Pre Out LRx 4.300 Config. 1 1 - Open the transparent cover by pushing the two teeth in B Ch: mono ( ) its lowest corners to the direction indicated by the arrows. + + Subwoofer Tweeter Woofer Woofer Tweeter 2 - Remove the screws which fasten the fuse to eliminate Front R Front L pieces of the broken one; prevent them from going into the device. FRONT + REAR + SUB Pre Out Rear 3 - Check the value of the new fuse to ass
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CONTROLS PANEL CONFIGURATIONS FUNCTIONS AND CONTROLS CONFIGURATIONS TABLE LRx 4.300 can be configured as follows: 1 Config. 1 = Front (Hi 12 dB) + Sub: (Lo 12/24 dB); IN A (1 IN) – Pre Out (Hi 12 dB) Config. 2 = Front (Hi 12 dB) + Sub: (Lo 12/24 dB) ; IN A-B (2 IN) – Ch. B mono (Lo 12/24 dB) LIMIT (orange LED) Config. 3 = Ch. A (Full Range) + Ch. B (Full Range); IN A (1 IN); Pre Out (Full Range) It indicates the Overload Limiter circuit is on. Config. 4 = Ch. A (Full Range) + Ch. B (Full Range);
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CONFIGURATIONS CONTROLS PANEL BLOCK DIAGRAM 4 8 B CHANNELS (Level) F1 SLOPE It adjusts the amplifier B channels input It permits to choose LO-PASS filter slope sensitivity and sets its output level. between 12dB/Oct. (stereo) and 24dB/Oct. (mono, L+R). 5 9 A CHANNELS (Stereo/Mono) It permits to configure A channels outputs F1 signal as stereo or mono. It permits to adjust LO-PASS filter cut-off frequency between 40 Hz and 5 kHz. 6 10 B CHANNELS (Stereo/Mono) It permits to configure B channe
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SETTING PANEL ACCESSORIES Installation: FUNCTIONS It permits to reach the switches for the amplifier configuration, the resistors to set subsonic filter cut-off frequency and to insert VCA modules for the subwoofer volume remote control. Setting panel Remote First fan Second fan 1 - Remove the setting panel in the amplifier bottom in order to carry out operations. Remote Remote 2 - Once operations have IN OUT been carried out, please + POWER close the setting panel. AMPLIFIER CONFIGURATION LRx
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SETTING PANEL ACCESSORIES CLK2 – LRx Cooling Kit SUBSONIC FILTER CUT-OFF FREQUENCY MODIFICATION This cooling system is specially designed to provide LRx amplifiers with the right working Subsonic filter is pre-adjusted at 20 Hz. In order to modify this value, please act according to what temperature. follows. CLK2 should be used when LRx amplifiers work in extremely hard conditions (very low loads) or in Procedure: installations where space is too narrow and heat sink cooling is not enough. It c
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TECHNICAL FEATURES ACCESSORIES VCR01K,VCRAK and VCRDK SIZE FOR FIXING LRx 4.300 can accept one of the optional kits that allow the subwoofer volume remote control. VCR01K and VCRAK are analogue and special for sub; VCRDK is digital and can be used for master 375 mm volume control or for level control of any ways in a multichannel system. 342 mm These kits are available as accessories and consist of three elements: 1) Volume adjuster (VCR01/VCRA/VCRD); 2) VCA/VCA1D module to put inside the ampli
