[E91toG05]

Have not messed around with car audio much since about 30 years ago. Have always been disappointed with the HK system in my 2022 45e with the HK system and think adding a proper sub may fix it. Thinking of adding a Kicker 51PTRTP12 amplified sub and using the Technic pnp harness. A few questions:
- any thoughts on this setup? I like the idea of using this sub because it faces downward so I can still toss stuff on top of it and lose a minimal amount of storage. 45e has no real under-floor storage so that's not an option for me.
- should I get/use the technic LOC or just use high-level inputs from the technic harness to the sub (it accepts high-level)? If using high-level input, it seems I do not need to use a remote turn-on signal.
- Any thoughts on how to attach this thing to the floor?

Thanks!

[dombi]

Originally Posted by E91toG05

Have not messed around with car audio much since about 30 years ago. Have always been disappointed with the HK system in my 2022 45e with the HK system and think adding a proper sub may fix it. Thinking of adding a Kicker 51PTRTP12 amplified sub and using the Technic pnp harness. A few questions:
- any thoughts on this setup? I like the idea of using this sub because it faces downward so I can still toss stuff on top of it and lose a minimal amount of storage. 45e has no real under-floor storage so that's not an option for me.
- should I get/use the technic LOC or just use high-level inputs from the technic harness to the sub (it accepts high-level)? If using high-level input, it seems I do not need to use a remote turn-on signal.
- Any thoughts on how to attach this thing to the floor?

Thanks!

My setup is:
- Match UP 10DSP (Amp/DSP)
- Audison APBX 10 AS2 (10", active Sub)
- Match UP W8BMW-S (Underseat woofers).

I think that the DSP/Amp is a must.
Then, with a calibrated mic, you can do time alignment, individual EQ, levels on the speakers. This will improve the sound.

You can also add the Sub. With the DSP, and with the Mic again, you can adjust the Sub to sound good. I have to time align it, and EQ it a bit, to make it sound right.

I did the Woofer swap first... it definitely helps, but not sure if it was worth it. I might have been able to make the system sound right without them too. I will never know... since I swapped them right in the beginning.

The Audison 10" sub fits really nicely in the under the trunk area.

Also, there is a great car audio forum with a lot of smart audio guys:
https://www.diymobileaudio.com

They helped me a lot in setting up everything, and dialing in the system.

[TechKid]

Originally Posted by E91toG05

Have not messed around with car audio much since about 30 years ago. Have always been disappointed with the HK system in my 2022 45e with the HK system and think adding a proper sub may fix it. Thinking of adding a Kicker 51PTRTP12 amplified sub and using the Technic pnp harness. A few questions:
- any thoughts on this setup? I like the idea of using this sub because it faces downward so I can still toss stuff on top of it and lose a minimal amount of storage. 45e has no real under-floor storage so that's not an option for me.
- should I get/use the technic LOC or just use high-level inputs from the technic harness to the sub (it accepts high-level)? If using high-level input, it seems I do not need to use a remote turn-on signal.
- Any thoughts on how to attach this thing to the floor?

Thanks!

You can order with the line output and not use it if you don’t want to but the line output has a gain control that might be useful in tuning. Also you do want the amp to shut off so there’s that.

The kicker box is a good unit, I would add some Velcro on the bottom edges (scratchy side obviously) to keep it in place.

[E91toG05]

Originally Posted by TechKid

You can order with the line output and not use it if you don’t want to but the line output has a gain control that might be useful in tuning. Also you do want the amp to shut off so there’s that.

The kicker box is a good unit, I would add some Velcro on the bottom edges (scratchy side obviously) to keep it in place.

Thank! Super helpful. The Kicker unit I believe does auto on and off based on speaker level signal being present or not. Technic was sold out of the LOC so the decision was easy to not get it lol.

[starlights]

Incase you decide to go a simpler route - 20 min install and while initially it didn't sound good, it sounds amazing with HK after about 20-30 hours of breaking in. Good luck with your project.

https://g05.bimmerpost.com/forums/sh...&highlight=sub

[E91toG05]

Originally Posted by starlights

Incase you decide to go a simpler route - 20 min install and while initially it didn't sound good, it sounds amazing with HK after about 20-30 hours of breaking in. Good luck with your project.

https://g05.bimmerpost.com/forums/sh...&highlight=sub

This is a great solution but unfortunately there is almost zero under-floor storage in the 45e hybrid.

[starlights]

Originally Posted by E91toG05

This is a great solution but unfortunately there is almost zero under-floor storage in the 45e hybrid.

Ah! Sorry, I missed that part when reading your post.

[E91toG05]

Originally Posted by starlights

Ah! Sorry, I missed that part when reading your post.

But your part about the wire colors and how the harness works was great!

[starlights]

Originally Posted by E91toG05

But your part about the wire colors and how the harness works was great!

Thanks. Once you have your sub installed, check out this thread below for sound setup. Once I dialed in these settings, especially the surround at full (all the way to right) and fader moved a bit to the back, sound went from good to amazing.

https://g05.bimmerpost.com/forums/sh....php?t=1582200