Stereo Newb - Kicker Sub and Amp

[MLA]

My fault on the misinformation.

MLA, help me out on my understanding because I'm still learning

4 ohms: 70 watts x 4 chan. + 210 watts x 1 Class D Sub channel: This is the scenario I was working from. Can you drop the ohm load to 2 for just the sub channel? If so, that doesn't necessarily double the output, right?

2 ohms: 85 watts x 4 chan. + 420 watts x 1 Class D Sub channel: This one confuses me completely

4 ohms (bridged): 130 watts x 2 chan. + 420 watts x 1 chan. (2 ohms sub channel, 210 watts @ 4 ohms): This is the way you get the 420 watts of power to the sub, right? But when you are bridged can you show a 2 ohm load to the 130 x 2? Because you will have 4 speakers on those 2 channels.

Maybe I just don't understand dual voice coil at all. If you have 2 voice coils at 2 ohms each, do you not have to take your amp readings from a 4 ohm standpoint? Taking them from a 2 ohm listing and x 2 gives you a 1 ohm load, no?

Ok, lets just focus on the Class-D mono sub chnl. If a 4 Ohm speaker load is wired to the chnl # 5, the chnl will deliver 210 watts RMS (root mean sq.) other wise called continuous power. A dual voice coil basically has two sets of windings and each needs to be powered.

If a 2 Ohm speaker load is wired, then the chnl will deliver 420 watts RMS. So, this amp can run a moderate 4 Ohm single voice coil @ 210, like the KM10, or a higher power handling 4 Ohm dual voice coil sub like an L3 or a CVR.

Most typical DVC subs come in the 2 ohm or 4 ohm configuration. With a dual 4, we wire the coils + to + and - to - and we get 2 Ohm and receive 420W. A dual 2 ohm can be wired in series (coil 1 + to amp, coil 2 - to amp and coil 1 - to coil 2 +). This nets us 4 ohm and allows up to bridge the sub on a 2 chnl amp. Or, we can wire it in parallel for a 1 Ohm load for a mono amp. Just keep in mind, that not all mono amp are stable with a 1 ohm load. Too low an ohm load causes problems.

The loads placed on the sub chnl has no bearing on the out put of the 4 full-range chnls and vise-verse. A single 4 ohm in-boat speaker wired to one of the 4 full-range chnl will net 70W to that speaker. Wiring two 4 ohm speakers in parallel is a 2 ohm load, and the chnl output is now 85W. This 85W is then divided by the two similar speakers with each netting 42.5. Bridging a 4 ohm speaker across two chnls is equal to each chnl "seeing" a 2 ohm load as the 4 ohm bridged load is divided internally. I think the bridged output of the 700.5 is 170, but im not sure as ive never used it bridged. I always use it for 4-6 in-boats, but have used it for a pair of tower speakers and a sub.