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View Full Version : RF 1001BD vs RF Power 800a2


LiftedSilverado
02-13-2008, 02:06 PM
I have a RF Power 800a2 right now and my buddy is selling the RF 1001BD for $150

You guys think its worth it to upgrade to the 1001BD? I have 2 dual 4ohm subs that can handle the power. But what did these 1001BDs bench at?

I dont think Ill be getting double the wattage out of them

Jimi77
02-13-2008, 02:44 PM
800rms vs 1000rms doesn't even equate to 1db (roughly ~27% increase in power = 1db in spl). Save you $150 for the strip club.

neillio
02-13-2008, 03:12 PM
The RF Power 800a2's usually did right around 1100 watts. You may see a 100 watt nominal increase in power. Not worth the price, really.

-neillio

PuffDaddy_d
02-13-2008, 07:20 PM
what subs do you have anyway? You keep saying what impedence they are, but you've never even mentioned what brand/model they are or how much power they actually need.

LiftedSilverado
02-14-2008, 04:14 PM
what subs do you have anyway? You keep saying what impedence they are, but you've never even mentioned what brand/model they are or how much power they actually need.

Eclipse alum 7200 series

N2Audio
02-14-2008, 04:28 PM
that's a great price on a good amp.
What you hear won't change much, but the load on your alt may actually be reduced even though power will increase slightly.
I like efficiency so I would strongly consider it. If that doesn't matter to you the change might not be worth it.

buddha73
02-14-2008, 05:35 PM
that's a great price on a good amp.
What you hear won't change much, but the load on your alt may actually be reduced even though power will increase slightly.
I like efficiency so I would strongly consider it. If that doesn't matter to you the change might not be worth it.

i was kinda thinkin along the same lines.
you could watch this auction, and roughly see what you'd get for your 800a2.

http://cgi.ebay.com/Rockford-Fosgate-Punch-800a2-Car-Audio-Amplifier-800-a2_W0QQitemZ180215079752QQihZ008QQcategoryZ39732QQ ssPageNameZWDVWQQrdZ1QQcmdZViewItem

LiftedSilverado
02-14-2008, 09:12 PM
What stats do I look at to see how much of a load a amp puts on my eletrical?

I dont get how a 1000 puts less draw on my setup than the 800?

Jimi77
02-14-2008, 10:01 PM
What stats do I look at to see how much of a load a amp puts on my eletrical?

I dont get how a 1000 puts less draw on my setup than the 800?

Class D vs Class A. The best easy indicator is to look at the fuse ratings.

N2Audio
02-15-2008, 01:01 PM
generally a class D will run around 75% at all power levels.
class a/b is usually stated at 60%

So if you have a 1000w amp that's 75% eff you'll have a max test tone current draw around 95A.

If you have an 800w amp that's about 60% eff you end up with the same current draw.

however - the real advantage of class D over a/b is when it's operating at less than full output because class D remains steady, but a/b's will drop to about 30% at 1/3 rated rms power.

So at 333w that class d only draws 30A
At 266 the a/b could draw as much as 60A