ELETTROMEDIA Audison LRX 1 400 Owner's Manual

Car power amplifier

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OWNER'S MANUAL

CAR POWER AMPLIFIER

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Page 1 OWNER’S MANUAL CAR POWER AMPLIFIER...
Page 2 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.
Page 3: Table Of Contents
CONTENTS Description ..................p. 4 In-Out panel Functions .
Page 4: Description
DESCRIPTION Audison LRx 1.400: Mono car power amplifier characterised by excellent musical performances, small size and outstanding energy reserve. Its PWM power supply stage is stabilised and oversize. Thanks to its great capacity to supply current and to the use of three 70A Mosfets pairs, this amplifier can easily drive even the hardest loads. 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 altering musical signal quality.
Page 5: In-Out Panel
IN-OUT PANEL FUNCTIONS SPEAKER A/B (LO-BYPASS) Amplifier power outputs. Signal is MONO. The two outputs are in parallel in order to allow the connection of one, two or more speakers. Connect the speakers cables to these outputs according to polarity. Terminal blocks accept cables up to 9 A.W.G.
Page 6: Power Supply Panel
POWER SUPPLY PANEL FUNCTIONS REMOTE IN Terminal to connect Remote cable, which comes from the source and which controls the amplifier switching on. Applied voltage must be between 7 and 15VDC. POWER REMOTE FUSE REMOTE OUT Terminal to repeat the switching on control (Remote IN) coming from the source. It is used to switch on another amplifier or device in the system simultaneously.
Page 7: Fuse Replacement
POWER SUPPLY PANEL FUSE REPLACEMENT 1 - Open the transparent cover by pushing the two teeth in its lowest corners to the direction indicated by the arrows. 2 - Remove the screws which fasten the fuse to eliminate pieces of the broken one; prevent them from going into the device.
Page 8: Controls Panel
CONTROLS PANEL FUNCTIONS AND CONTROLS LIMIT (orange LED) It indicates the Overload Limiter circuit is on. Caution: When this led is on (although sporadically), it means the applied load is a hard one.The activation of Overload Limiter circuit (output power limiter) will anyway allow the amplifier to function without distortions.
Page 9 CONTROLS PANEL LO-PASS F1 Q It permits to choose whether to send a It permits to adjust the LO-PASS filter full range signal (BYPASS) or a 24dB/Oct. Q, varying the filter gain at its cut-off LO-PASS signal for low frequencies (ON) frequency.
Page 10: Setting Panel
SETTING PANEL FUNCTIONS It permits to reach the resistors to set subsonic filter cut-off frequency and to insert VCA modules for the subwoofer volume remote control. Setting panel 1 - Remove the setting panel in the amplifier bottom in order to carry out operations.
Page 11: Subsonic Filter Cut-Off Frequency Modification
SETTING PANEL SUBSONIC FILTER CUT-OFF FREQUENCY MODIFICATION Subsonic filter is pre-adjusted at 20 Hz. In order to modify this value, please act according to what follows. Procedure: Replace FS1, FS2, FS3, FS4 resistors according to the values in the setting panel table.
Page 12: Technical Features
TECHNICAL FEATURES SIZE FOR FIXING Drilling dimensions for fixing LRx 1.400 POWER SUPPLY Output power (RMS) @ 13.8 VDC; THD 1% Voltage: ......11 ÷ 15 VDC - A config.: .
Page 13: Accessories
ACCESSORIES VCR01K,VCRAK and VCRDK LRx 1.400 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 volume control or for level control of any ways in a multichannel system.
Page 14: Clk2 - Lrx Cooling Kit
ACCESSORIES CLK2 - LRx Cooling Kit This cooling system is specially designed to provide LRx amplifiers with the right working temperature. CLK2 should be used when LRx amplifiers work in extremely hard conditions (very low loads) or in installations where space is too narrow and heat sink cooling is not enough. It consists of two units to apply onto the amplifier sides;...
Page 15 ACCESSORIES Installation: Remote First fan Second fan Remote Remote POWER 12 V...
Page 16: Configurations
CONFIGURATIONS BLOCK DIAGRAM...
Page 17: Configurations Table
CONFIGURATIONS CONFIGURATIONS TABLE LRx 1.400 can be configured as follows: Config. 1 = Speaker A/B (Full Range); Pre Out (Full Range) Config. 2 = Speaker A/B (Full Range); Pre Out (Hi 12 dB) Config. 3 = Speaker A/B (Lo 24 dB); Pre Out (Full Range) Config.
Page 18: Configuration Examples
CONFIGURATION EXAMPLES FRONT+SUBWOOFER FRONT (DUAL MONO)+SUBWOOFER...
Page 19: Front (Dual Mono)
CONFIGURATION EXAMPLES FRONT (DUAL MONO) Pre Out Left Right LRx 1.400 LRx 1.400 Config. 1/2 Config. 1/2 Tweeter Tweeter Midrange Midrange Woofer Woofer Left Right FRONT + REAR + SUBWOOFER Pre Out Rear Front Tweeter Tweeter Tweeter Tweeter Woofer Woofer Woofer Woofer Subwoofer...
Page 20: Multichannel
CONFIGURATION EXAMPLES MULTICHANNEL Pre Out Right Left LRx1.400 LRx1.400 Config. 4 Config. 4 Subwoofer Subwoofer Subwoofer Subwoofer LRx1.400 LRx1.400 Config. 4 Config. 4 Woofer Woofer Woofer Woofer LRx2 LRx2 Config. 2/4/6 Config. 2/4/6 mono: Mode mono: Mode Tweeter Tweeter Midrange Midrange...
Page 21: Installation
INSTALLATION LOGO ROTATION 1 - Remove the transparent cover which protects controls and then the 4 screws which block the metal plate by using multispanner. 2 - Remove the plate without damaging the silkscreen printed panel which will have to stay on.
Page 22: Amplifier Fixing
INSTALLATION AMPLIFIER FIXING ELECTRIC CONNECTIONS CAUTION! For the system safer protection, we recommend the use of a strip fuse on the cable that connects the battery positive pole amplifier POWER (+) terminal block. This fuse has to be installed about 10 cm far from the battery;...
Page 23: Audison Cable Products For Electric Connections
INSTALLATION audison cable PRODUCTS FOR ELECTRIC CONNECTIONS...
Page 24: Audison Measurement Standards
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.