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» Termpro Audio Forum » Component Specific Topics » Amplifiers » 1100a2 at 1 ohm?

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Author Topic: 1100a2 at 1 ohm?
Team BIO-Zac...WCA
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I have a RF 1100a2 with my subs wired as a 4 ohm load bridged down to 2 ohms at the amp. A friend told me my amp could handle a 2ohm load bridged down to 1 ohm if I got 2 duel 2 ohm subs! What do you think: a. could my amp handle it and if it can, just for comp or all the time? and b. would it realy produce more wattage or would it go into protection mode?

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Posts: 1074 | From: Ione, CA | Registered: Dec 2001  |  IP: Logged | Report this post to a Moderator
ptownTSI
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They were made to run 4ohm mono... so 2ohm is already pushing it past stock specs. Dont even try 1ohm, thats just stoopid.

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retired from the heavy dB's.

Posts: 1289 | From: CA Sacramento | Registered: Oct 2001  |  IP: Logged | Report this post to a Moderator
JDW
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Some can some can't but I would just stay at 2 ohms.

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Team Street Sounds
2002 M4 and MR4 TN Record Holder
2001 MR6 World Record and M6 TN Record
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Posts: 537 | From: carthage,tn | Registered: Feb 2001  |  IP: Logged | Report this post to a Moderator
Team BIO-Zac...WCA
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Maybe I wasnt clear. I'm showing the amp 4 ohms (bridged) and I'm thinkin about hookin up a 2 ohm load (bridged) to it. Thanx and keep the helpful comments coming

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Posts: 1074 | From: Ione, CA | Registered: Dec 2001  |  IP: Logged | Report this post to a Moderator
debezt1
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maybe he was thinking a 2ohm load ends up as a 4ohm after adding the box impedense rise
Posts: 32 | From: Zurich | Registered: Oct 2001  |  IP: Logged | Report this post to a Moderator
DaveY
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It will probably do ok at 2 ohm mono. I ran a Power 360a2 that way for a while...it went into protection if played hard for longer than 20 minutes or so, but never blew.
Posts: 339 | From: Dahlgren, VA | Registered: Oct 2000  |  IP: Logged | Report this post to a Moderator
LowandBlazed
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Go for it! I've run every RF amp I've ever owned at either 2 ohm mono or 1 ohm mono. Amps I have run at this impedance are as follows; 360a2, 120a2, and bd1000.1. The 360a2 I ran at 1 ohm mono and it would get hot but only shut down 2 twice after extended play. I also ran my bd1000.1 at 1 ohm mono and it never even got warm. The 120a2 I ran at 2 ohm mono and it would get rather warm after about 3 hours of continous play but would never shut off. The 360a2 and bd1000.1 ran subs and the 120a2 ran a set of components. If you are still shaky about doing it run it at 1 ohm for awhile if it shuts down and you get concerned then rewire it. If not enjoy the extra power!
Posts: 27 | From: Cincinnati Ohio | Registered: Jan 2002  |  IP: Logged | Report this post to a Moderator
Juggalo Mitch
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man my bd1000a1 shut off after 20 minutes of 1 ohm running to it.

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My set up is currently as follows:

Pioneer p835r
Pioneer Deq 7600
Sony Xplod Eqx 4channel about 400 watts
Crystal Mobile 7" compset
Rockford Power bd1000a1
3 Rockford HE2 12's

Posts: 44 | From: Kettering, Ohio | Registered: Dec 2001  |  IP: Logged | Report this post to a Moderator
Team BIO-Zac...WCA
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hey people keep the RF 1 ohm experiences comin! thanx for the help!!

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Posts: 1074 | From: Ione, CA | Registered: Dec 2001  |  IP: Logged | Report this post to a Moderator
hb
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I would not recommend rf bd1000.1 in 1ohm
it is not stable.

bd1000.1 is stable down 2 2ohm

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Alpine HU, Alpine Pre-Amp/EQ Crossover
Front RF 6 1/2" Mid's & Pyramid 1" Titanium Bullet Tweeter's
Rear Audax 8" Mid's & Pyramid 1" Titanium Bullet Tweeter's
RF 250a2, RF 360a2, RF bd1000.1
2 JLAudio 12W34D
160 amp Ohio Gen Alt


Posts: 53 | From: jamaica | Registered: Jan 2002  |  IP: Logged | Report this post to a Moderator
mike_m
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quote:
Originally posted by hb:
I would not recommend rf bd1000.1 in 1ohm
it is not stable.

bd1000.1 is stable down 2 2ohm


my punch experiences:

2 BD1000A1's ---- ran at 1 ohm everyday no problems. I tried one at .5 ohm and it would go into protect when i cranked it immediately.

2 Punch 200.2's from @1997---- ran at 1 ohm everyday no problems.

Punch 225.2----ran at 2 ohm everyday and then 1 ohm everyday, no problems.

Punch 400.4 Ran at 1 ohm stereo, amp got hot, but no problems.

Punch 100IX from @1996 i think, ran at 1 ohm everyday no problems

Punch Power 250x2 @1996 ran at 2 ohm everday no problems, then i let my friend have it and he blew it up at 2 ohm. I think it was a bad ground causing a voltage drop.

Punch 40's and 45's I've ran at 2 ohm mono no problems ever. I've probably had some more Punch amps but i can't remember. My all time favorite amps as you can see are made by Rockford.

If you plan on running these amps below 4 ohms use your head. Don't crank it up all day long. Make sure you have a good electrical system and proper wire size to feed the amp power.

good luck with your system,

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Mike Miguez

All motor CRX! Who wants some?
 - In memory of 9/11/2001
THE FLAG STILL FLIES!


Posts: 2209 | From: Beaumont TX, USA | Registered: Jan 2000  |  IP: Logged | Report this post to a Moderator
csuho
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oh come on jackie give ur exprience there with ur 800a2. .3ohm baby. ha ha. but i would do the 2ohm mono. i have a 55.2 that would do a lil under 1ohm mono. but it didn't like it much.

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Team FU!!!!
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Posts: 1395 | From: nashville TN | Registered: Apr 2000  |  IP: Logged | Report this post to a Moderator
Q
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The only way I'd recommend you run that 1100 at a show I'm at is 4-8 ohms, or else you might be too loud...

I'm not yet sure, but I doubt I'll be able to do the D2s Zac, dang it! - but maybe you can do all 4 4ohm coils in parallel for a reactive 1.5 - 2 ohm load, and try a different amp that wants 1-2ohms.

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"I'm feeling very humble lately, but I'm sure I have the strength of character to fight it"
-Bob Hope

"Only YOU can prevent AMPLIFIRES!"
-jarfunkz


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Q
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Original Member # 740
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Posts: 1934 | From: Somewhere Out Mountainbiking The Sierra Nevada | Registered: Nov 2001  |  IP: Logged | Report this post to a Moderator
Team BIO-Zac...WCA
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Oh no Q found me!! Well if your sayin dont do it, it must be a good thing! Cant do the d2s huh! THAT SUCKS! I'll talk at you soon, if not see ya at the next comp.
P.S. the new box is lookin good!

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Posts: 1074 | From: Ione, CA | Registered: Dec 2001  |  IP: Logged | Report this post to a Moderator
   

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