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Professional self powered speakers and surround sound

Posted on 2007-07-20
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Last Modified: 2013-11-13
Hello,

I have been asked to set up 4 self powered speakers in surround sound for a temporary outdoor theater. The problem is that the speakers only have XLR and 1/4 inch inputs while the receiver I am supposed to use only outputs to amplified bare wire. Since the speakers are self powered, what kind of device can I use to take the digital output from a DVD player and send the appropriate sound channels to the right speaker vial XLR or 1/4 inch? What if I turned the volume down on the receiver, and found adapters from "bare wire" to XLR or 1/4 inch?


Thank you for your assistance,
Max
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Question by:Maxwellb
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Expert Comment

by:MerijnB
ID: 19537386
First of all you're not on the right forum for this question :)
This forum is for IT related things only.

I'll give it a shot anyways, so some questions:

In your text, what do you mean with 'receiver'?
What kind of DVD player do you use? Normally you can just plug 'bare wire' into DVD players (5 of them, not 4).
How is your DVD player connected to your amplifier at the moment?
Is there a gain control / peak led on the 4 powered speakers?
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Author Comment

by:Maxwellb
ID: 19540593
MerijnB,

Thank you for attempting to assist me with my question. By 'receiver' I mean a run-of-the-mill home theater amplifier with speaker outputs for Dolby digital surround sound. I have a Toshiba DVD player, about 4 years old. Now I think about it, I have seen DVD players with outputs for "left-front" "left-surround" right on the back of them... unfortunately, my DVD player does not have these outputs (just digital optical and digital coax - as well as just stereo). Although...if it works, purchasing a DVD player that had those outputs would not be a bad idea! My DVD player is connected to the home theater amplifier via optical. Yes, there is a gain control on the powered speakers as well as a primitive EQ (high/low).


Thank you for your assistance,
Max

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MerijnB earned 2000 total points
ID: 19542242
ok, all together I think you don't want to go with your optical outputs, I'll explain why.
Surround normally consists of '5.1'. 5 Channels (left front, right front, left rear, right rear, and mid front) and a subwoofer channel.

Of those 6 channels you will be able to use only 4 with your 4 powered loudspeakers.

What seems to best to me is to use the stereo output, and crosslink it to your 4 powered amplifiers, so like:

DVD L -> left front and right rear
DVD R -> right front and left rear

This is not real surround, but you won't get real surround with only 4 speakers anyway. Besides that, for this solution you don't need extra amps or decoders and the output level of your stereo output should be correct for your powered speakers (line level).

Crosslinking a stereo channel gives a quite nice 'surround feel'.

If you want to go with this, only think left is what the connectors are your DVD player has for the stereo output, my guess is cinch, is this right?

hope it helps!
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Author Comment

by:Maxwellb
ID: 19630256
Sorry MerijnB,

In the craziness of summer I forgot to close this question. Full points awarded!

Thank You,
Max
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Expert Comment

by:MerijnB
ID: 19643500
what solution did you choose in the end (btw, question is still open)
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Expert Comment

by:MerijnB
ID: 19672308
point taken, thanks
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Author Comment

by:Maxwellb
ID: 19673490
Sorry, I must have forgotten to award the points. Thank you MerijnB, for your assistance - I chose to Switch the front and rear left and right channels as you suggested.

-Max
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