posted
I saw somebody mention that the power was 1 ohm stable, any truth to this? Is that one of the diff.s between them? Is it worth the extra $$ to go with the power. I want to run to punch DVC 15"s off of this amp, any suggetsions or comments???? THANXXX
posted
Power series in the past has always been built a little beefier (bigger power supply caps and stuff) to make them able to take low impedances. I run old power 250.1's at 1 ohm, and I have many friends that either bridge 250.2's at 1 ohm and run 250.1 at .5 ohm... They (and I) have never had a problem.
The power 800 should be able to take a 2 ohm mono, which means that it will be better for a single DVC or for four (all subs parraleled, two groups of two in series, all parraleled to the amp for 2 ohm mono)
The punch is only rated to take 4 ohm mono, but I would personally run it at 2 ohm mono without worry. Haven't had too much experience with rockfords newer stuff... Not impressed with their new image.
Well, it's up to your pocketbook, but they sound like pretty close to the same amp, with a couple of different circuits and maybe an extra cap or two inside the power version...
Running DVC fifteens... Any suggestions... Yeah. Buy two DVC fifteens and buy one of the mmats d200hc's thats floating around on this site for small $$$, and you'll get more power. Easier on your alt too..
ShadowStar
(Just my Opinion )
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Computers are a lot like air conditioners.. Open Windows and they become useless..
The day Microsoft makes something that doesn't suck is the day they make vacuums.
Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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posted
According to a local dealer the difference is in the built-in crossover it is supposed to be a much better crossover in the power but if you are not going to use it (i don't know if you are) then they are practically the same.
posted
Well, according to exploding punch 800's and powerful power 800's, the 800's are a little more stable. I wouldn't say it is a great deal more stable, but hey, if it is JUST right, then you get all you can. Like I said, the 2 ohm mono thing is something I do because I've never had problems with it, you would need to experiment a little yourself.
Seriously, look into the mmats amps if you don't have the charging system on steroids that big A/B amps require... I started liking that company when i saw the (?) D100 reviewed in i think carsound, and have been impressed with the quality ever since... For sub, much more so than RF in my opinion.. Just much better suited to task of powering subs..
ShadowStar
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Computers are a lot like air conditioners.. Open Windows and they become useless..
The day Microsoft makes something that doesn't suck is the day they make vacuums.
Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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posted
I've been thinking and I might just go with an 1100a2. Anybody work with them much. I'm planning on having it in a daily driver and was wondering what upgrades I might want to look into to keep my amps and my car happy. Thanks again for all the responses. As for the MMats I don't know much about them I want want to know what you guys think of them.
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Well, I've already given you my opinion.. I used to love rockford, but now I just don't like where the company is going.. Its an idiosyncratic feeling on my part..
I think that if you are buying a sub amp, MMats is pretty much the way to go at this point in time. Crossfire, Memphis audio, and a few others, are making large class D amplifiers for sub use, but mmats was there before them, with IMO a better product judging solely from word of mouth. I have no experience with crossfire or memphis, so I can't give a real opinion on them.
Also.. Your charging system will be much happier with class D sub amps.
ShadowStar
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Computers are a lot like air conditioners.. Open Windows and they become useless..
The day Microsoft makes something that doesn't suck is the day they make vacuums.
Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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posted
The Power Series amplifiers from rockford have to distinct additions over the Punch Series amplifiers. 1)Trans-nova: A proprietary circuit that simplifies the signal path of the amplifier, allowing the signal to travel through the amplifier at a low voltage. The result: Greater reliability, cleaner performance and exceptional musicality with the speed, durability and power of MOSFETs 2)DIAMOND (Dynamically Invariant AMplification Optimized Nodal Drive) A circuit that drives large arrays of MOSFET output transistors. DIAMOND provides 20 dB of current headroom for superb sound quality and incredible dynamic range.
As to the 1100 it hase a variable phase shift to allow correct phasing of multiple amplifiers and woofers. It also has an outboard 45hz boost control.
I don't know what problems you have had with the new RF amps, but they are more bullet-proof now than they ever have been and I attribute it to the MEHSA technology.
And as always, It's Just my opinion, as well!!!
------------------ With repect to the stewed prunes, is 3 enough or is 4 too many???
Posts: 3485 | From: Retirement Village in Branson Missouri. | Registered: May 1999
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posted
The d200hc is 1600watts at 1 ohm if I am not mistaken which is better for several subs... The Fosgate amps have one distinct advantage, with the class A/B power supply you can always use them for any channel not just bass... Flexability is a nice thing... However they are pretty close so its basicly what do you want to show off to your buddies...
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Posts: 186 | From: Grande Prairie, Alberta, Canada | Registered: May 1999
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