2 ohm woofers?

[andrewwynn]

Good tip on phase matching with the AA battery

[wpoll]

Originally Posted by andrewwynn

Good tip on phase matching with the AA battery

It is, as long as it's a standard carbon or maybe an alkaline battery. An AA NiCad or NiMH battery could possibly generate a current high enough to damage a speaker coil (esp. a tweeter). The high internal resistance of standard carbon batteries will prevent this.

[crystalworks]

Originally Posted by Happy

And boy it sounds dreamy! LoL..

Thanks bro. I still have a small alternator whine, but ordered an Audiocontrol Matrix that I'm going to try and use to get a cleaner audio signal to the DSP. If that's not it... must be something with the wiring. I'll find it eventually. When I have time to work on it anyway. It's a minor whine that I don't notice most of the time.

Here you go OP. I removed my previous post that had DSP pinout. Sorry for the size, I wanted it easy to read and/or print. This is the correct pinout for the "HiFi Loudspeaker System" vehicle option 676. Also, I verified that the wire colors DO NOT change between the amp and the door. At least not according to the diagrams.

[X5chemist]

Wow crystalworks! When it comes to electrical work, I'd rather do a M54 starter swap!

A chart like that makes it so simple. A single male/female connector with enough pins makes an upgrade easier. Especially to add a big woofer amp. I'll start looking for a connector.

Thanks for all the input! I'll have to put this project off for a bit. I have two HKA codes to deal with. Plus a hitch install to complete. I'll add to this post when I come back around to this project. I'll make notes to add to my X5 notebook.

[crystalworks]

Originally Posted by X5chemist

Wow crystalworks! When it comes to electrical work, I'd rather do a M54 starter swap!

A chart like that makes it so simple. A single male/female connector with enough pins makes an upgrade easier. Especially to add a big woofer amp. I'll start looking for a connector.

Thanks for all the input! I'll have to put this project off for a bit. I have two HKA codes to deal with. Plus a hitch install to complete. I'll add to this post when I come back around to this project. I'll make notes to add to my X5 notebook.

No problem. I found the easiest way to find a suitable connector was to just buy a non-functional amp on Ebay. I have a whole thread about how I made my adapter. Have a read through if you're interested. Spoiler: it took some time.

https://xoutpost.com/bmw-sav-forums/...g-pinouts.html

[X5chemist]

CX360.4 4 channel amplifier. Any opinions on the the CX360.4? I can upgrade the woofers to 4 ohm. What would happen to 2 ohm upper door speakers?
How many channels does an amp need to power all the speakers? 10 speakers in a business CD SAV, right?

[crystalworks]

Originally Posted by X5chemist

CX360.4 4 channel amplifier. Any opinions on the the CX360.4? I can upgrade the woofers to 4 ohm. What would happen to 2 ohm upper door speakers?
How many channels does an amp need to power all the speakers? 10 speakers in a business CD SAV, right?

That's a nice 4 channel amp. Always liked Kicker gear, especially the old Stillwater Designs days. But anywho, how were you planning on using that amp? Meaning what were you planning on hooking up to the 4 channels?

10 channels of amplification is only required if you are trying to go "full active." Basically that means a dedicated channel of amplification for each driver and the individual crossover settings that go with it. Totally not required for good audio. And really only recommended if you are going nuts with a full audiophile build. At which point I'd recommend a DSP amplifier or standalone.

BTW, if you go full active... lol you end up with something that looks like this unless you go with the new tiny Class D 4 channel amps. It sounds amazing... but it's not really practical for most ppl if you know what I mean.

[X5chemist]

I have no idea on how to connect 10 speakers to the amp! The RCA connections can go to a 10" woofer. Right? My brother recommended the amp. He upgrade his Bose equipped Chevy with one. It sounds great.

[crystalworks]

Originally Posted by X5chemist

I have no idea on how to connect 10 speakers to the amp! The RCA connections can go to a 10" woofer. Right? My brother recommended the amp. He upgrade his Bose equipped Chevy with one. It sounds great.

Alright. If you are trying to have all 10 speakers amplified, + a subwoofer... you're talking real work. And cost.

You would need a 5 channel amplifier at minimum. And you would need to replace ALL of the speakers. The fronts with a 3-way component setup that has a passive crossover. And the rears with a 2-way component setup that has a passive crossover.

If you go the above route, 1 channel of the amp will drive the left front speakers (all 3 of them), 1 channel the right front speakers (all 3 of them), 1 channel the left rear speakers (2 in the door I believe), 1 channel the right rear speakers (2 in the door), and the final channel will power your subwoofer.

It's... a lot of work. What are your ultimate goals with the setup? Sounds like a friend's nice gesture has turned into a real task here. Just noticed those front speakers they gave you are 2 way also. The reason you aren't getting volume out of them is that all the frequencies above (guessing here) ~200hrz are removed in the factory amplifier. Those frequencies are fed to the mid (dash) and even higher frequencies to the tweeters (on the door). The factory amps for the DSP and business 10 channel amps do a lot of crossover work internally before passing signals on to the speakers.

[X5chemist]

One speaker not working is getting complicated. So, how about something else. Depin the door woofers and do an amp add on those?
I just want all the speakers to work. I've been given the go head to replace the radio display if necessary.