User manual DLS CLASSIC06

[. . . ] Contents Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amplifier installation kit. . . . . . . . . . . . . . . . Routing Wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] It is mostly used with a front system connected to channels C/ D and a subwoofer connected to channel A/B. You will find speaker wiring and filter setting example on page 10. Please observe the proper settings of the channel A/B LPF multiplier switch and of the channel C/D HPF multiplier switch. The CA41 can also be used to feed a 2­way front system with active crossovers between midbasses and tweeters. This is described in a speaker wiring and filter setting example on page 11. LPF Multiply 80/800Hz 200/2(k)Hz The CA31 is a three channel amplifier. It has a variable high pass filter, 50-150 Hz, for channel A/ B. The C channel is for subwoofers and has a subsonic filter, a variable low pass filter, 50-120 Hz, and a phase control variable from 0 - 180 degrees. The subsonic filter can be switched IN-OUT and has a fixed frequency of 25 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 Channel A/B is equipped very much like the CA22 and CA23, 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/D , operate from 4 kHz upwards using the HPF in multiplier position x 10 150 Hz ­ 5 kHz. The CA51 is a five channel amplifier. On channel A/B, C/D the filter configuration is exactly the same as for CA41. Channel E is a subwoofer mono channel with a lowpass filter adjustable from 60 to 120 Hz. Channel E has also a subsonic filter that can be switched INOUT. The subsonic filter has a fixed frequency of 25 Hz. The CA51 has also a phase control variable from 0 - 180 degrees. 7 CA22, 23 Speaker wiring CA 22 & CA23 Two fullrange speakers to CA22 or CA23 One subwoofer connected in bridge mode to CA22 or CA23 Filter settings HPF 50Hz 220Hz Subsonic 40Hz 100Hz 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 15Hz 500Hz 15Hz 150Hz Off On Off On HPF 50Hz 220Hz Subsonic 40Hz 100Hz CA22 CA23 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 15Hz 150Hz Off On Off On CA22 CA23 LPF 80Hz 200Hz The HPF filter is here used as subsonic filter to take away the very deepest frequencies. [. . . ] 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. Out of phase speakers will cause a lack of bass, and a poor stereo soundstage. [. . . ]