D1 vs D2 and series vs parallel wiring

[goldmax99 0]

I'm in the market for a sub but not sure if I need to buy a dual 1 ohm or dual 2 ohms voice coil. Furthermore, how should I wire it in series or parallel. What are the pros/cons of a D1 vs a D2? Then what are the pros/cons of wiring up the coils in series vs parallel? I'll be running a 12" sub with a Soundstream Rubicon 702 which does 700 watts RMS X 1 at 2 and 4 ohms bridged. Also does 350W X 1 at 8 ohms bridged.

[KU40 173]

you basically just wire the sub to match your amp. If you have a 2 ohm optimized amp and have a sub with dual 4 ohm coils, you'll wire the coils in parallel to the amp. Conversely, if you have a 4 ohm amp and a dual 2 ohm sub, you would wire the coils in series.

I try to wire in parallel if possible but it's not a big deal to wire in series. Really not much difference.

[Adrian_D 520]

As far as I know, coils in series vs coils in parallel doesn't make a big diffrence.

[helotaxi 46]

With multiple coils on the same sub, series and parallel don't make a difference at all.

[mrray13 30]

D1 vs D2 doesn't affect performance to the point of it being noticeable to the ear, if any at all, everything else being the same. series vs parallel, same answer, to a point. once one gets into huge multipule sub setups that might change, but not to my knowledge.

as mentioned, you choose to match your amp, to optimize it's performance.

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

[Adrian_D 520]

What's your guys take on wiring 2 dvc subs ? Coils in series / subs in parallel vs coils in parallel / subs in series

[mrray13 30]

i always try to series the coils, it's easier to keep track of, lol.

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

[KU40 173]

i always try to series the coils, it's easier to keep track of, lol.

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Yeah I've heard that's best too. There is some technical jargon for why but I forget. Wiring coils in series/parallel does make a difference in Le I believe (series has higher Le). But I wouldn't change everything else up just for that.

[helotaxi 46]

Back EMF distortion is the term. The inductance and EMF generated by the moving coils of subs wired in series causes a change in the signal going to the other subs in the series. Wiring individual subs in parallel allows the amp to act as a shunt for this.

[goldmax99 0]

So for my amp which works at full power 700W at 2 and 4 ohms bridged I should aim for a D2 wired in series since 4 ohms is easier on the amp than 2 ohms.

[KU40 173]

I would.

[goldmax99 0]

Thank you all once again. This is an incredible forum.