The Helix should match the bazooka in output with similar power. The Helix can play quite low when the signal is not filtered....I measured down to 30 HZ after I was done with measurements and dsp eq filters. You do not want to parallel all the wires together when hooking up to the amp as it will be a 0.5 ohm load. It is 4 x 2 ohm connector so you will need to wire each driver in series then connect both drivers in parallel for a 2 ohm final load....which should get you full power from the ACM.Thank you for sharing your knowledge and experience with the Helix kit. I purchased the kit when I bough a 2017 e-golf last year. Great kit, worth the money no doubt. However, I find the bass rather underpowered and I miss the low frequencies it seems to rolloff. So I bought the ACM 1.300 in the hopes it will get me where I want to be with the bass.
I plan to use pins 2, 3, 6, and 7 to carry signal to the ACM 1.300, but how did you connect back to the Helix sub connector? Did you connect all 8 wires by connecting two pairs on the sub connector to each pair coming from the ACM? I'm concerned if I only connect 4 of the wires I won't be connecting all 4 voice coils. I could also just replace the Helix sub, but I would rather not if the Helix sub can still get me to where I want to be.
*edit - I remembered that the 8" bazooka I have in my truck matches the ACM specs perfectly so worst case I can always bring that over. Comparing to that in my truck is part of why I'm not happy with the Helix as is, so that could be what I need.
You will most likely need to take apart the sub to view how the wires flow to the connector to identify each voice coil...then after the connectors connect each drivers voice coil in a series pattern (google) and the same with the other driver, then connect both in parallel (negative + negative and positive + positive) and you should have a 2 ohm load.