1-ohm stable?

[D Money]

I just got a diamond 15, It has dual 2 ohm voice coils so i need an amplifier which can put out about 600 watts rms at 1 ohm. Does anyone know of a good amp that can do this? i might be able to trade the speaker for a dual 4 ohm sub. does anyone know the downsides of running an amp at 1 ohm? do i get less maximum power? thanks a lot

[PoorManQ45]

does anyone know the downsides of running an amp at 1 ohm?

A 1 Ohm load is very hard on an amplifier. 1 Ohm is extremely close to a short circuit. This causes alot of strain on the amp. It will cause it to put out alot more heat than a 2Ohm load would on the same amp. Also, this extra strain on the amp may cause a premature failure.

do i get less maximum power?

No. You actually get more power by going with a lower Ohm load. By going from a 2 Ohm load to a 1 Ohm load, you will get approximately 75% more power. But, as I stated before, this causes alot more strain on the amp.

[D Money]

should i get another speaker then? thanks

[PoorManQ45]

should i get another speaker then?

nah.

1Ohm is ok. Other than the problems that I stated before, it's ok. As long as your amp is made to handle a 1Ohm load, you should be ok.

What is the speaker? Can you give a link to a site with information on it?

[base9se]

I just got a diamond 15, It has dual 2 ohm voice coils so i need an amplifier which can put out about 600 watts rms at 1 ohm. Does anyone know of a good amp that can do this? i might be able to trade the speaker for a dual 4 ohm sub. does anyone know the downsides of running an amp at 1 ohm? do i get less maximum power? thanks a lot

Try Soundstream (Old School...Reference Series, Rubicon). They run 1 Ohm Stereo, 2 Ohm Mono Stable. Had a Reference 405 and it ran my whole system without any problems. New lines are not what they use to be, but they're worth the look.

[D Money]

http://www.diamondaudio.com/Mo...ofers its the cm315d2i am gonna be running it mono arent i? does anyone make a good amp that can take a 1 ohm mono load? can i just get a overly powerful amp and keep the gain all the way down to keep the stress down ? thanks for all the replys

[Silvia007]

Hifonics, great prices on Ebay. Check them out. I have a Brutus 1500 with 2 infiniti kappa 10's with dual 4 ohm voice coils wired to 1 ohm. The sub's suck as much power as the amp can throw out at 1 ohm and it's still kicking hard. I can go on long long road trips and the amp will be fine.

[PoorManQ45]

http://www.diamondaudio.com/Mo...ofers its the cm315d2

The sensitivity/efficiency is a little too low for my liking. 88db 1w/1m. With that sub, you can "only" get 116db SPL out of it. But, since you already have it, it's ok.

How much did it cost?

[D Money]

i got it for a little under 200.

[Rex]

The KINGS of running low ohm loads (even less than 1 during competition) was Orion HCCA and Pheonix Gold MS & MPS series.

I recall one Car Audio review stating the PG was stable to a nail.

[D Money]

is their anyway to run a dual 2 ohm voicecoil sub at 2 or 4 ohms, if not im gott atart looking for amps

[Rex]

is their anyway to run a dual 2 ohm voicecoil sub at 2 or 4 ohms, if not im gott atart looking for amps

You can either wire it as a

Series Circuit - A circuit configuration in which a single current path is arranged among all components. Connecting the positive speaker output of an amplifier channel to the positive terminal of speaker # 1 , connecting the negative terminal of # 1 to the positive terminal of speaker # 2, and the negative terminal of # 2 to the negative output of the same amplifier channel is a series connection. NET increases (numeric) ohm load seen by the amplifier.

or

Parallel Circuit - A circuit configuration in which the same voltage is applied to all components, with current divided among the components according to their respective resistances or impedances. Example: All positive leads of two or more speakers connected together and all negative leads connected together. NET decreases (numeric) ohm load seen by the amplifier.

(taken in part from http://www.the12volt.com)

[D Money]

so if the wire goes from amplifier positive, to voice coil #1+, #1 negative, to #2 positive to, #2 negative to, negative amplifer , it would be a 4 ohm load, or is it 2 ohm, or am i wrong? Thanks

Modified by CrazyS14240 at 1:00 AM 10/4/2004
Modified by CrazyS14240 at 1:03 AM 10/4/2004

[Rex]

The amp's 2 wires should connect to the #1 positive and the #2 negative, then connect the other 2 terminals to each other. Does that make sense? (pretty sure that's what you have posted)

Connecting 2 - 2 ohm voice coils together in that manner should result in the amp seeing a 4 ohm load, bridging on that 4 ohm load will actually have the amp running "bridged 2 ohm" which most "quality" amps can handle.

[D Money]

so my amp will see a 2 ohm load with 1 dual 2 ohm voice-coil speaker wired that way?,do you think 8 gauge power wire would make good speaker wire? would a capacitor give me significantly more bass? thanks a lot for everyones help

[Rex]

Yes, wired as we've described will have the bridged amp "seeing" a 2 ohm load.

IMHO 8 gauge is more like amplifier power wire, I think it might be overkill for speaker wire, IIRC 12 gauge should handle your needs.

I've never used a capacitor, and what I've read about them is mixed. I'd say unless you plan on competing or doing some heavy duty pounding, you won't need one. Just make sure your charging system and battery are in good working order. Your whole car can benefit from a good quality battery (i.e. Optima).

(I'm waiting for Simmsled to chime in for some vaildation)

[D Money]

hey, thanks for all the good advice from everyone, i already have an optima in the trunk, i probably wont get a capacitor then, until i start to lose my hearing and need more bass. thanks again

[Rex]

Red or Yellow Top? There's an ineteresting thread about Yellow Top Optima's in here somewhere worth finding and reading.

[D Money]

its a redtop