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Rockford Fosgate amps


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wbw3434 
Member - Posts: 4
Member spacespace
Joined: June 10, 2005
Location: United States
Posted: June 21, 2005 at 9:02 PM / IP Logged  

I got some Rockford Fosgate amps really cheap from Best Buy. I used to have PPI  Art series which I loved. I know PPI is better than Fosgate , but how do the Fosgates match up? Are the Fosgates better for SQ or SPL. I have a Punch 500s and a Punch 500x.

Thanks in advance,

WBW3434

D 3rd
haemphyst 
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Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: June 21, 2005 at 11:23 PM / IP Logged  
SPL, and not even really good for that. I don't like to beat on RF amps, as they tend to eat their own power supplies when you do... I can't think of even ONE RF amp that could ever be considered a good SQ amp... Just my opinion tho...
Why did you - why WOULD you - switch to RF from Art series?
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Francious70 
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Joined: July 26, 2004
Location: United States
Posted: June 22, 2005 at 1:41 PM / IP Logged  
Enh, RF's not that bad. But you could definately get better gear for your money.
Now some of their older stuff, that's descent stuff, but no where near as good as some Art series amps.
Paul
wbw3434 
Member - Posts: 4
Member spacespace
Joined: June 10, 2005
Location: United States
Posted: June 22, 2005 at 6:42 PM / IP Logged  
Basically the car I had my PPI amps in got stolen, had 10 speakers in the car plus 2 SAS bazooka tubes.(Pissed as hell), but I got the Rockford amps at about half price or less than half price(used to work at Best Buy).
D 3rd
dwarren 
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Joined: December 03, 2004
Location: California, United States
Posted: June 22, 2005 at 6:46 PM / IP Logged  
so use them and report what you think, after all you are the one using them.
Nodestiny 
Copper - Posts: 85
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Joined: May 26, 2005
Location: United States
Posted: June 23, 2005 at 8:16 AM / IP Logged  
RF amps, as much as i hate to say it, are actualy very good. SQ wise they have potential, but SPL wise they can put some DAMN crazy power out. On termpro, somebody bought a 3000x1 RF amp and the birthsheet gives high 3900's!!! So they can put out a ton of power with ease... if you want SQ there are other amps to go with, but if you got a good deal, then why bother? Im sure you will be happy with it.
04 dodge neon SXT
(2) Oz Audio Matrix Elite 12"s sealed in 4 cube fiberglass enclosure, powered by HiFonics BX1605D
Oz Audio Matrix 180cs 6.5" component set power by HiFonics ZX4000
forbidden 
Platinum - Posts: 5,352
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Joined: November 01, 2003
Location: Alberta, Canada
Posted: June 23, 2005 at 8:40 PM / IP Logged  
The reason why these amps seem to go through power supplies is simple. Resistance on the ground return. Took me blowing a 1000a2 4 times to figure this out.
Top Secret, I can tell you but then my wife will kill me.
Nodestiny 
Copper - Posts: 85
Copper spacespace
Joined: May 26, 2005
Location: United States
Posted: June 24, 2005 at 12:57 PM / IP Logged  
As in your install had grounding problems, or the amp(s) had bad grounds internaly?
04 dodge neon SXT
(2) Oz Audio Matrix Elite 12"s sealed in 4 cube fiberglass enclosure, powered by HiFonics BX1605D
Oz Audio Matrix 180cs 6.5" component set power by HiFonics ZX4000
forbidden 
Platinum - Posts: 5,352
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: November 01, 2003
Location: Alberta, Canada
Posted: June 24, 2005 at 1:22 PM / IP Logged  
As in the days before I started to actaully check return resistance and relied on the assumed correct method of grounding, which was to a nice big bolt, clean and no paint. After 4 blown amps in as many days, Rockford asked me to check the return resistance which was 26 ohms.... OMG. At lower volume levels all is well but at higher volume levels with higher current draw, this became a nightmare that led to the power supply doing the crispy critter.
Top Secret, I can tell you but then my wife will kill me.
Nodestiny 
Copper - Posts: 85
Copper spacespace
Joined: May 26, 2005
Location: United States
Posted: June 24, 2005 at 1:44 PM / IP Logged  
dang man, thats some scary resistance! glad you got that fixed.. I blew 3 HiFonics amps in a row due to a fuse not holding tight enough at my fused dis block, as the bass made the fuse vibrate rapidly, giving and killing power very quickly. This was in my newb days, too.
04 dodge neon SXT
(2) Oz Audio Matrix Elite 12"s sealed in 4 cube fiberglass enclosure, powered by HiFonics BX1605D
Oz Audio Matrix 180cs 6.5" component set power by HiFonics ZX4000
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