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  #1  
Old 05-03-2011, 10:37 AM
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AR-15 AR-15 is offline
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Default How to set up this amp?

This is the most confusing crossover set up I have ever seen....How in the hell would you set thios up for 4 Polk Audio DB57i? I want it to be hP @ 80-100hz
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Old 05-03-2011, 10:42 AM
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That is no different then any other 4 channel Set the switch to HPF for all 4 channels. Then dial in the knob to your XO point you want. Adjust gain to suit....
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Old 05-03-2011, 10:42 AM
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Are you wiring all 4 polks to each channel separately? If so, the top and bottom would be set to HP and set them up identically as far as gain and X-over.
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Old 05-03-2011, 10:46 AM
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Originally Posted by audioarsonal View Post
That is no different then any other 4 channel Set the switch to HPF for all 4 channels. Then dial in the knob to your XO point you want. Adjust gain to suit....
there is more than just a HPF switch, theres one that says LP/HP freq, then a seperate HP, and then a switch that says low pass 50-800hz and 250hz-4khz.
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Old 05-03-2011, 10:49 AM
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Originally Posted by BlackWaterOp View Post
Are you wiring all 4 polks to each channel separately? If so, the top and bottom would be set to HP and set them up identically as far as gain and X-over.
yes each seperately, i hear your by setting them up identically but the crossover pots on the top and bottom arent the same range. owners manual might as well be used for TP
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Old 05-03-2011, 10:53 AM
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And then set gains accordingly, and of course "fine tune" my suggestions as needed (xover freq)
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Old 05-03-2011, 10:55 AM
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Originally Posted by AR-15 View Post
there is more than just a HPF switch, theres one that says LP/HP freq, then a seperate HP, and then a switch that says low pass 50-800hz and 250hz-4khz.

Both do the same thing. They are just set up to be able to run 2 channels for highs and 2 for bass if needed. In your case both switches would be on HPF. the XO won't be turned to the same place but both can be XO'd at 80hz. The bass boost to the right should both be off and the other switch won't be used since you aren't running it in LPF.

That only leaves the gain knob to adjust.
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Old 05-03-2011, 10:56 AM
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And then set gains accordingly, and of course "fine tune" my suggestions as needed (xover freq)

He cannot set both filters to 1/4 turn as they are not the same filters. The bottom one will get turned more like 1/2 way and the top maybe 1/4.
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Old 05-03-2011, 10:57 AM
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He cannot set both filters to 1/4 turn as they are not the same filters. The bottom one will get turned more like 1/2 way and the top maybe 1/4.
like this?
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  #10  
Old 05-03-2011, 11:20 AM
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You got it. We cannot tell you the exact position on the XO. You will have to experiment and see what works. But that gives you a general idea of location they should be in.
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