Help wiring these speakers.

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=51346
Printed Date: September 18, 2025 at 1:46 PM

Topic: Help wiring these speakers.

Posted By: tmorefi
Subject: Help wiring these speakers.
Date Posted: March 05, 2005 at 2:26 PM

I could use some help figuring out the best way to wire my set-up. I have 1 Soundstream Van Gogh VGA500.4 amp with the specs listed below.

RMS @ 4 OHMS: 125W x 4 CH
RMS @ 2 OHMS: 250W x 4 CH·
RMS BRIDGED POWER @ 4 OHMS: 500W x 2 CH

I have 4 8ohm (100rms / 200max) midbass speakers and 2 8 ohm (100rms / 200max) compression horns. Can you help me figure out the best way to wire them to my amp to get the most watts out?

Thanks for your help.

Tony-

Replies:

Posted By: DYohn
Date Posted: March 05, 2005 at 2:43 PM

Do you simply want "the most power out" or do you want it to sound right? What's the installation? What kinds of crossovers are you planning to use?

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Posted By: tmorefi
Date Posted: March 05, 2005 at 2:56 PM

I definitely want it to sound right. The installation is in a custom fiberglass box for my wakeboard boat tower. I tried attaching a pic but it's way too big. I have not ordered the crossovers for the horns yet but will be. I'm just waiting for the recommendation from the mfgr. Assuming I go with this set-up (including the crossovers), how would you recommend I wire it?

Posted By: tmorefi
Date Posted: March 05, 2005 at 2:59 PM

Posted By: DYohn
Date Posted: March 05, 2005 at 4:04 PM

I'd use two channels to run your horns in stereo, and a set of mid-basses paralleled to each of the other two channels. Use an active crossover and high-pass the horms at around 1600 to 2000Hz (most comprression drivers are great down to 600 or so but don't go that low) and bandpass the woofers between 80Hz and whatever you choose for the horns. You'll also want a sub for the low bass below 80Hz.

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Posted By: tmorefi
Date Posted: March 05, 2005 at 4:55 PM

Is the drawing the same of what you're recommending? (square's are horns and rounds are mids) I think that would have all of the speakers running at 4ohms and only 65 watts to each or am I doing something wrong. I have 4 Image Dynamics IDv.3 8" subs for the bass so I should be ok there. Thanks again. posted_image

Posted By: DYohn
Date Posted: March 05, 2005 at 5:14 PM

No, I'd run the horns at 8-ohms, one to a channel, not bridged in parallel.

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Posted By: tmorefi
Date Posted: March 05, 2005 at 5:28 PM

Oh yes, I missed that... Am I correct with watts per each mid? 65? At ohms, how many watts would I be getting to the horns?