DLS CA20 How To Install And Operate Download | Manualshive

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DLS Svenska AB

P.O. Box 13029

Artillerigatan 25

S-40251 Göteborg, Sweden

Tel: +46 31 840060

Fax: +46 31 844021

E-mail: [email protected]

www.dls.se

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Summary of Contents for CA20

Page 1: ...t is sold If the amplifier is returned for service please include the original dated receipt with the product Technical Assistance For technical assistance ask the shop where the product was sold or the distributor in your very coun try You can always phone the DLS Helpdesk in Sweden 46 31 84 00 60 or send an e mail to info dls se Information can also be found on our WEB site www dls se Contents F...

Page 2: ... bridged at 13 8 Volt max 0 1 resp 0 2 THD Installation Before you begin installation Before you begin you need to read the manual to have some tools cables and other materialavailable There is one such list of material on the following page Amplifier location Important Allow air circulation around the amplifier 2 Disconnect Battery Before starting the instal lation always disconnect the negative ...

Page 3: ...f AWG 15 1 5 mm2 wire for remote turn on off cable from radio RCA cable for input from radio 20 feet or 5 meter for trunk installations 12 feet or 2 3 meter for under seat installations Two min 8 gauge ring crimp terminals one for connection to the battery plus and one for the amplifier ground connection Two heavy fork crimp terminals to connect and to amplifer but you do only need them if you use...

Page 4: ...m the car stereo or you want to simplify the in stallation the amplifier can be turned on turned off by the high level input voltage This is done when the Hi level Low level switch is set to Hi level posi tion There is a small disadvantage that this function gives soft turn off operation but some plop sound when switching off Connect the fuse holder as close to the vehicle battery as possible usin...

Page 5: ...rom your head unit Input and controls Input Wiring Inputs may be low level from the RCA output of the car stereo or high level from the car stereo speaker output Low level RCA is to prefer for the best sound quality High Input White A ch White Black A ch Gray Black B ch Gray C ch CA40 The CA40 four channel amplifier is connected likewise however we have four channels You can feed two channels from...

Page 6: ...to protect small speakers like 6 inch and smaller from deep bass It can also be used as subsonic filter to take away the very deepest frequencies from a bass box The typical setting is then around 25 40 Hz In CA21 the high pass filter is designed as a subsonic filter variable from 15 Hz to 150 Hz The slope of the High pass filter is 12 dB octave The filter can be switched off if you want to run th...

Page 7: ... 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 Multiply x1 x10 80 800Hz Off On ...

Page 8: ...ilter is here used as subsonic filter to take away the very deepest frequencies The typical set ting is around 25 40 Hz CA20 CA21 The LPF will allow low frequencies only and blocks higher frequencies A typical setting is 70 100 Hz 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 LPF Off On 8...

Page 9: ...PF HPF 50 500Hz 220 2 k Hz 15 150Hz 500 5 k Hz Off On Multiply x1 x10 LPF Off On 80Hz 200Hz 50Hz 500Hz CA40 Speaker wiring CA 40 Four fullrange speakers to CA40 One pair in front and one pair in rear Rear speakers Front speakers Filter settings A B Channels 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 repr...

Page 10: ...ilter must be OFF The HPF filter switchmust be ON and the multiply swich in x 10 position Now you can adjust the filter setting from 150Hz to 5 kHz Adjust the setting to 4 kHz 10 Two subwoofers connected in bridge mode to CA40 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 HPF Off On 50Hz 2...

Page 11: ...ers 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 The LPF filter switch should be in OFF position Subwoofer to CA50 The CA50 is a five channel amplifier On channel A B C D the filter confoguration is exactly the same as for CA40 For speaker connections on these channels you can use the examples ...

Page 12: ...AFTER 10 30 MINU TES The amplifier is overheating due to inadequate venti lation Check mounting position is free from obstruction Do this 1 Move the amplifier to a place with better ventil ation 2 Install one or two fans to cool down the heat sink 3 Overheating can also be caused by an impedance load below the level permitted NO OUTPUT FROM ONE OR MORE SPEAKERS Check the following 1 Balance contro...

Page 13: ...ttery Tap the wire on to the terminal of the battery and observe the movement of the cone The cone should move outwards when the wire touches the battery and inwards when the battery is removed If it is the other way around the speaker has been connected backwards and it must be removed and connected correctly If your system also has a subwoofer connected through a passive 6 or 12 dB crossover try...

Page 14: ...0 18 dB Filter highpass subsonic 15 500 Hz 15 150 Hz see spec below see spec Filter lowpass 50 500 Hz 50 500 Hz see spec below see spec can be switched in out Power consumption idle 0 7 A 1 0 A 1 0 A 1 0A Fuse 1 x 25A 2 x 25A 2 x 25A 3 x 30A Dimensions mm 51 5x180x290 51 5x280x290 51 5x320x290 51 5x400x290 Dimensions inch 2 03x7 09x11 4 2 03x11 02x11 4 2 03x12 6x11 4 2 03x15 75z11 4 Weight 2 4 kg ...

Page 15: ......

Page 16: ...DLS Svenska AB P O Box 13029 Artillerigatan 25 S 40251 Göteborg Sweden Tel 46 31 840060 Fax 46 31 844021 E mail info dls se www dls se ...

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