Instruction/ maintenance manual of the product LRX 4.300 Audison
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OWNER’S MANUAL CAR POWER AMPLIFIER PRINTED IN IT AL Y - Code 10125770 62018 P otenza Picena (MC) Italy T el. 0733.870870 • Fax 0733.870880 • http://www .audison.com • e -mail: com@audison.com is a division of Audison measuremen t standards (Po wer measures taken accor ding to audison standard, 1998 edition) - 12VDC and 13.
2 INTRODUCTION INTRODUCTION Audison thanks you f or preferring this product and compliments you on y our choice since it was designed in order to insure outstanding musical and instrumental performances.
3 C ONTENTS Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4 In-Out panel Functions . . . . . . . . . . . . . .
4 DESCRIPTION Audison LRx 4.300: F our channel car power amplifier characterised by ex cellent musical performances, small size and outstanding energy reserve. Its PWM power supply stage is made with two pairs of 70A MOSFET s; it is stabilised and oversiz e.
PPS (Phantom P ower Supply) Po wer supply socket for audison external audio accessories. 2 IN B/OUT Lef t ( L ) and right ( R ) inputs of the amplifier B channels or amplifier HI/BYP ASS preamplified outputs (see “ Configurations table ” ). Connect only the right ( R ) channel input in order to use the amplifier in mono.
6 POWER SUPPL Y P ANEL REMO TE IN T erminal to connect Remote cable, which comes from the source and which controls the amplifier swit ching on. Applied voltage must be between 7 and 15VDC. 1 REMO TE OUT T erminal to repeat the switching on contr ol (Remote IN) coming from the source .
7 7 POWER SUPPL Y P ANEL 1 - Open the transparent cov er by pushing the two teeth in its lowest corners to the dir ection indicated by the arrows. 4 - Close the transparent cov er . 3 - Check the value of the new fuse to assemble , then fix it by gradually and alternately fastening the tw o screws.
8 C ONTROLS P ANEL 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 limit er) will anyway allow the amplifier to function without distortions.
9 C ONTROLS P ANEL F1 It permits to adjust L O-P ASS filter cut-off frequency between 40 Hz and 5 kHz. 9 F2 It permits to adjust 12dB/Oct. HI-P ASS filter cut-off frequency between 40 Hz and 5 kHz. 10 F1 SL OPE It permits to choose L O-P ASS filter slope between 12dB/Oct.
SET TING P ANEL 10 It permits to reach the switches for the amplifier configuration, the resistors to set subsonic filter cut-off frequency and to inser t VCA modules for the subwoofer volume r emote control. AMPLIFIER C ONFIGURA TION A C CESSORIES 15 LRx 4.
11 SET TING P ANEL SUBSONIC FIL TER CUT-OFF FREQUENCY MODIFICA TION Replace FS1, FS2, FS3, FS4 resistors according to the v alues in the setting panel table. 10 mm 5 mm Remark: Cut the new resistors rheophores according to the size in the picture. Proc edure: VCA-V CA1D MODULES INSERTION LRx 4.
Remote Out IN OUT REMOTE FUSE POWER - + Batter y VCR 01 Control Y ellow/White VCRD/V CRA VCR01 Y ellow/White Blue Black Black (250mA) Red Red (250mA) Orange Lights switch FUSE Ground Ground min max 0 FUSE 13 A C CESSORIES LRx 4.300 can accept one of the optional kits that allow the subwoofer volume r emote control.
An important point after buying a device Audison LRX 4.300 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Audison LRX 4.300 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Audison LRX 4.300 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Audison LRX 4.300 you will learn all the available features of the product, as well as information on its operation. The information that you get Audison LRX 4.300 will certainly help you make a decision on the purchase.
If you already are a holder of Audison LRX 4.300, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Audison LRX 4.300.
However, one of the most important roles played by the user manual is to help in solving problems with Audison LRX 4.300. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Audison LRX 4.300 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
