General Discussion General discussion about all things car audio, from pioneer, orion, alpine and eclipse.

Which amp is better to use for these subs? Rockford Fosgate or Sony?

Old 08-07-2007, 08:47 AM
  #1  
0 Watt CAFz'r
Thread Starter
 
Join Date: Aug 2007
Posts: 3
Which amp is better to use for these subs? Rockford Fosgate or Sony?

Hey everyone,

I have two amps, a Rockford Fosgate 800a2 stereo amp and a Sony XMD9001GTR mono block.

Now my situation is as follows:

I have 2 MTX MXS1204 12" subwoofers with 4 ohm DVC's so which means my impedence would be 1 ohm in parallel for both of them, or 4ohm's in series if i connect them to either amp.

now the Fosgate bridged gives me roughly 750 watts (last i checked) of power bridged @ 4 ohms (as thats wat its stable out), which sounds like the better bet as fosgate is better than sony (from what i know about 2 years ago) but the downside: its an A/B amp, so not entirely efficient, and its an old amp.

The Sony however is roughly 900watts (based off birthsheet) stable @ 2ohms but which I cannot connect @ 2 ohms and its a brand new amp. downside: i dont know how much power something with a 30a fuse can really dish out, especially 900watts.

That being said, help what are your suggestions?

Thanks!
catalyst007 is offline  
Old 08-07-2007, 09:08 AM
  #2  
50 Watt CAFz'r
iTrader: (5)
 
Join Date: Apr 2005
Posts: 307
My vote goes to the Rockford, it should do better than 750 bridged.
Sr SQ is offline  
Old 08-07-2007, 09:10 AM
  #3  
0 Watt CAFz'r
Thread Starter
 
Join Date: Aug 2007
Posts: 3
It probably could, but i never pushed it too high. Remember its an old amp, maybe 99 or 98? but then again, it was hand built from the fosgate factory (sticker still on the back ) so i'm thinking essentially the same way too.
catalyst007 is offline  
Old 08-07-2007, 09:23 AM
  #4  
50 Watt CAFz'r
 
Join Date: Jun 2007
Posts: 300
Rockford all the way, and the older stuff was really well built.
bland is offline  
Old 08-07-2007, 11:35 AM
  #5  
50 Watt CAFz'r
iTrader: (1)
 
Join Date: May 2006
Posts: 254
My vote goes to your RF amp.
The early 90s RF gear is 1000 times better than the late 90s RF gear IMO.

The Rockford amp is better suited for your speaker load, so it gets my vote. That 800a2 WILL get hot enough to fry eggs with, so make sure it isn't buried under a seat or anywhere where it can't cool properly.
unholysavage is offline  
Old 08-07-2007, 02:42 PM
  #6  
4000 Watt CAFz'r
iTrader: (66)
 
MR2NR's Avatar
 
Join Date: Dec 2003
Posts: 6,420
Indeed that Rockford amp is going to get hot. The nice thing about it is that you can barbeque on it. Make sure you have a very good ground for it. Don't just attach it to metal scraped clean, measure the return resistance and get it as low as possible. Most of those old amps made over the 1000w into 4 ohm for output, it will do a great job with the subs wired in series / parallel.
MR2NR is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
carlionne1
General Discussion
2
09-12-2009 09:30 AM
hoponpop
General SQ
13
10-29-2008 06:19 PM
barley418
General Discussion
2
03-08-2006 02:04 PM
crazy_canuck999
General Discussion
3
03-10-2004 10:47 AM


Thread Tools
Search this Thread
Quick Reply: Which amp is better to use for these subs? Rockford Fosgate or Sony?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.