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Old 01-27-11, 09:35 AM   #31
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Re: Building Custom Subwoofers!!!!


i know in car audio amps. both channels are used in the bridge mode.. i looked at the back of the amp and it showed + and - hooked to the positive channels on the amp...



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Old 02-05-11, 11:45 PM   #32
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Re: Building Custom Subwoofers!!!!


hey mike.. either a ep 2500 or a ep2000.. Which should i get..


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Old 02-07-11, 06:20 AM   #33
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Re: Building Custom Subwoofers!!!!


The 2000 would be enough for these subs but the 2500 could also be used for a future project. It's up to you.


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Old 02-09-11, 08:44 PM   #34
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Re: Building Custom Subwoofers!!!!


hey here is a update of the boxes as of an hour ago.. screwed 2 inches on center, and glued. should have the face done tomorrow night.. Also there is a couple pics of what the subs look like..

the sub will be front firing along with the port. i'll upload pics tomorrow or the next day..

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Old 02-10-11, 10:47 AM   #35
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Re: Building Custom Subwoofers!!!!


Procast - I saw another post of yours and wanted to clarify something.

An EP2500/4000 won't overpower or damage your subs (unless you run it at excessive levels). It'll have power in reserve and handle peaks well - but you actually want to overbuy wattage - rather than underbuy.

You're more likely to have clipping and higher levels of distortion - if you buy a small amp, and then power speakers that have a higher wattage than the amp (and run the small amp at high gain).

A higher wattage amp just means you adjust the gain lower to get the desired output.


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Old 02-10-11, 11:51 AM   #36
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Quote:
Zeitgeist wrote:
Procast - I saw another post of yours and wanted to clarify something.

An EP2500/4000 won't overpower or damage your subs (unless you run it at excessive levels). It'll have power in reserve and handle peaks well - but you actually want to overbuy wattage - rather than underbuy.

You're more likely to have clipping and higher levels of distortion - if you buy a small amp, and then power speakers that have a higher wattage than the amp (and run the small amp at high gain).

A higher wattage amp just means you adjust the gain lower to get the desired output.
Very true. I should of realized that too


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Old 02-12-11, 10:53 PM   #37
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Very true. I should of realized that too
Mike what do you think about a tube port made of pvc... I prefer the square but would like your opinion and could you help me get the specs for a tube port if you think I should go that route.. I want to finish these monday. Thanks jon


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Old 02-12-11, 11:01 PM   #38
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Re: Building Custom Subwoofers!!!!


It would have to be a 4" flared port like Parts Express sells, the air speed is high. The port would need to be 22.5" long.


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Old 02-13-11, 08:22 AM   #39
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Mike P. wrote:
It would have to be a 4" flared port like Parts Express sells, the air speed is high. The port would need to be 22.5" long.
Should I stick with building a slotted port or do the tube port.


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Old 02-13-11, 02:48 PM   #40
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Re: Building Custom Subwoofers!!!!


Personally I'd go with the slot port, it will have a lower air speed.


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