Here's my stuff.
2 Sony Xplod XS-L101P5 10" subs
Max 1100 Watts
RMS 300 Watts
Sony Xplod XM-D400P5 Monoaural amp rated at :
Max 400 Watts at 4 ohms
Max 800 Watts at 2 ohms
RMS 200 Watts at 4 ohms
RMS 400 Watts at 2 ohms
The amp has these connections (from left to right)
Remote - Power (12v) - Ground - Speaker Neg - Speaker Pos - Speaker Neg - Speaker Pos
I connected each sub to it's 'own' pair of pos and neg, but since both the pos's and neg's are internally connected according to the amp's scheme this would mean they are hooked in parallel which drops the resistance from 4 to 2 ohms, right?
This is according to the amp's manual too.
The subs are not out of phase because the woofer comes out at both of them at the same time.
Can the subs be working against each other?
They are oppposite of each other, but not directed at each other, they are at an angle.
I don't have the capacitor in yet, might take a week or two (shipping from us to the netherlands)
About the Capacitor:
I know a 2.4F powercap is way too much, but the price-difference was only 15 usd with a 1F cap.
0.5F cap was 50 usd
1.0F cap was 90 usd
2.4F cap was 106 usd
And since my motto is 'The bigger the better'
This way I have the chance of hooking up way more amps