Subwoofer Amp Help

[MStrickland1988]

Hey guys, I'm building a DIY sub with the Dayton 15" HF driver and I'm looking for an EXTERNAL amplifier. I bought the ED sub pre-amp so the HP filter is taken care of. I have a very limited budget and am looking to spend 150-250. 250 is the most I want to spend but I would like to not have to. My options I've found so far seem to mostly be live audio amps by brands like Crown, Behringer, QSC and a few others. I don't like the idea of having to use an rca to xlr for the input but I guess I might have to live with that. I need 300 watts minimum which hasn't been hard to find at that price but they're all 2 channel and can't be bridged at 4ohms. What brands do you guys like? All help is welcome. Thanks!

 

[MStrickland1988]

I forgot to add that some of them list the output as 20-20k hertz. This means they will output lower than 20hz but not at the rated power, correct?

 

[MStrickland1988]

I've found an Audiosource amp three locally for a pretty good price. It is listed at 150watts x 2 at ohm or 400 watts bridged at 8 ohm. The sub I have is 4 ohm though and I'm not sure if it can do 4 ohm. Is there a way to run the sub at 8 ohm?

 

[Josuah]

I'm using a Behringer EP2500, which is the same as the EP4000. It'll do 4 ohms bridged or 2 ohms each channel and fits in your budget. There is some roll off below 20Hz but that's not uncommon.

Unless you stick a pro amp into a hush enclosure, you may wish to replace the stock fan with a quieter one. Doing so will probably void the warranty though.

 

[TLS Guy]

I've found an Audiosource amp three locally for a pretty good price. It is listed at 150watts x 2 at ohm or 400 watts bridged at 8 ohm. The sub I have is 4 ohm though and I'm not sure if it can do 4 ohm. Is there a way to run the sub at 8 ohm?

No, there isn't. Bridging is problematic for the reason you have found.

 

[TLS Guy]

I'm using a Behringer EP2500, which is the same as the EP4000. It'll do 4 ohms bridged or 2 ohms each channel and fits in your budget. There is some roll off below 20Hz but that's not uncommon.

Unless you stick a pro amp into a hush enclosure, you may wish to replace the stock fan with a quieter one. Doing so will probably void the warranty though.

In your price range the Behringer will give the most for your money.

 

[MStrickland1988]

I got an Audiosource amp three with the intent of using it to power the sub but it sounds so amazing with my mains I think I'm going to keep it to run them. It puts out 150w x 2 at 8ohm or 400 bridged at 8 ohm. Sound quality is very very good and at 29lbs it's a very well built little amp.

 

[j_garcia]

Audiosource makes a stand alone sub amp as well, though I don't think it is 300W and it may be out of your price range.

You could always get a plate amp and mount it in a box yourself. www.rythmikaudio.com The Dayton 500W plate amp was on sale really cheap recently.