User manual DLS CLASSICAMPENG03

[. . . ] Contents How to install and operate the DLS CA20, the CA21, CA40 and the CA50 amplifiers. Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amplifier installation kit. . . . . . . . . . . . . . . . Routing Wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Channel A and B is equipped very much like the CA20 and CA21, however the LPF has a multiplier. Thus the frequency range of the LPF can be varied from 50 Hz ­ 500 Hz in the x1 position or 500 Hz ­ 5 kHz in the x10 position. This way we can use this amplifier to feed a 2-way system, where the midbasses are feed from 80 Hz ­ 4 kHz. The tweeters connected to channel C and D , operate from 4 kHz upwards using the HPF in multiplier position x 10 150 Hz ­ 5 kHz. The Lowpass filter is switched off. LPF Multiply 80/800Hz 200/2(k)Hz Off On 50/500Hz 500/5(k)Hz x1 x10 HPF Multiply 50/500Hz 220/2(k)Hz Off On 15/150Hz 500/5(k)Hz x1 x10 Crossovers of CA50 The CA50 is a five channel amplifier. On channel A, B, C &D the filter confoguration is exactly the same as for CA40. Channel E is a subwoofer mono channel with a lowpass filter adjustable from 50 to 500 Hz. Channel E has also a subsonic filter that can be switched IN-OUT. The subsonic filter has a fixed frequency of 25 Hz. 7 CA20, 21 REM Speaker wiring CA 20 & CA21 Two fullrange speakers to CA20 or CA21 One subwoofer connected in bridge mode to CA20 or CA21 Filter settings HPF 50Hz 220Hz NOTE!4 ohm minimum load when using bridge mode connection. Lower impedances may damage the amplifier. In bridge mode the amplifier sees a 4 ohm load as 2 ohm. Filter settings HPF 50Hz 220Hz 15Hz 500Hz Off On With the HPF-filter in OFF position the amplifier allows the speakers to play fullrange. If you for some reason want to limit the low bass reproduction switch on the HPF-filter. The typical setting is then around 25 ­ 40 Hz. LPF 80Hz 200Hz 15Hz 500Hz Off On LPF 80Hz 200Hz The HPF filter is here used as subsonic filter to take away the very deepest frequencies. The typical setting is around 25 ­ 40 Hz. LPF LPF 80Hz 200Hz 50Hz 500Hz 50Hz 500Hz 80Hz 200Hz 50Hz 500Hz 50Hz 500Hz Off On Off 24 dB 12dB CA20 CA21 Off On Off 24 dB 12dB The LPF-filter should be OFF. CA20 CA21 The LPF will allow low frequencies only and blocks higher frequencies. In the CA21 amplifier you can select between two different slopes, 12 dB/ octave or 24 dB/ octave. Choose the slope and the setting that sounds best in your car. 8 CA40 Speaker wiring CA 40 Four fullrange speakers to CA40. Two fullrange speakers and one subwoofer to CA40. Rear speakers Filter settings A/B Channels Front speakers Rear subwoofer Rear or front speakers Filter settings A/B Channels HPF 50Hz 220Hz HPF 50Hz 220Hz LPF Multiply LPF Multiply 80/800Hz 200/2(k)Hz 80/800Hz 200/2(k)Hz 15Hz 500Hz x1 x10 Off On 50/500Hz 500/5(k)Hz Off On 15Hz 500Hz x1 x10 Off On 50/500Hz 500/5(k)Hz Off On With the HPF-filter in OFF position the amplifier allows the speakers to play fullrange. If you for some reason want to limit the low bass reproduction switch on the HPF-filter. The typical setting is then around 60 ­ 80 Hz. [. . . ] If the noise does not return, reroute original cable away from source of interference. If noise remains regardless of cable position, try to use so called Quasi-balanced signal cables. DLS PRO-cables are Quasibalanced. Professional Tip: SPEAKER POLARITY CHECK. All speakers in a car audio system should be connected in phase (the same polarity). All speaker cones must move in the same direction. [. . . ]