i'm trying to plan for a new sub + sub amp. For the sub the IDMAX 12 looks like my prefered choice now since it will be avaliable again soon.

i'm a bit unsure about what to power it with thou. i know there is dual 2 or 4 ohms version giving me the choice of 1, 2 or 4 ohms.

i was thinking maybe a cadence z7000 from jb as they seem within my budget. 1400rms for around 1k seemed pretty good value.

but i remember reading before like the higher the ohms the better SQ or something. so would it be better getting something around 1000rms at 2 ohms?

also how does it effect the demands on my electrical system? is 1 ohms a lot more demanding?

my preference is about 60% SQ, 40% SPL.

thanks.

[ March 04, 2003, 18:24: Message edited by: adrianf ]

As long as you don't push the amplifier beyond its rated impedance, then there will be no SQ difference..

oh ok

how about with the sub? impedance is not a factor of sq aswell?

you could argue that a lower impedence will affect things like damping factor, but a good quality monobloc will have no problems with low impedences, so it's a moot point.

a class D amp will be relatively easy on the car's electrics, which is advantageous. running 1ohm is not going it increase power consumption compared with 2ohm until you start utilising power beyond what the amp would produce at 2ohm. that is, up to 750WRMS output (for the Z7000) will consume the same power running at 2ohm or 1ohm; go beyond 750WRMS running at 1ohm, and the amp will consume more power obviously.

the Z7000 would be a good amp. otherwise, you maybe able to score a cheap JL audio 1000/1 from a jb hifi (i don't think they sell many ).

good luck