Audio upgrade options

[METAL]

So got some answers back from mObridge:

The MOST25 8.1.1 amp has 6 channels @ 100W RMS @ 4ohms can be bridged. The 2x 200W RMS @ 4ohms can also be bridged but internally they are bridged already but can be doubled again. The 300W RMS @ 4ohms is already fully bridged.

This amp will be the perfect addition to my setup saving money on purchasing MOST25 adapter.

Audison APBMW K4E (3-way passive fronts): running ch1 & ch2 @100w rms 4-ohms
Audison APBMW K4M (3-way passive rears): running ch3 & ch4 @100w rms 4-ohms
Audison AP 8 (3-way active ilo oem subs): running the sub channels @200w rms 4-ohms
JL Audio CP208LG-W3v3: running of the dedicated sub channel @600w rms 2ohms

Sponsored

 

[dazza]

So got some answers back from mObridge:

The MOST25 8.1.1 amp has 6 channels @ 100W RMS @ 4ohms can be bridged. The 2x 200W RMS @ 4ohms can also be bridged but internally they are bridged already but can be doubled again. The 300W RMS @ 4ohms is already fully bridged.

This amp will be the perfect addition to my setup saving money on purchasing MOST25 adapter.

Audison APBMW K4M (3-way passive fronts): running ch1 & ch2 @100w rms 4-ohms
Audison APBMW K4E (3-way passive rears): running ch3 & ch4 @100w rms 4-ohms
Audison AP 8 (3-way active ilo oem subs): running the sub channels @200w rms 4-ohms
JL Audio CP208LG-W3v3: running of the dedicated sub channel @600w rms 2ohms

Mobridge are good. I wished I went this way initially, with their amp. I am still thinking of doing it. But I have the mobridge preamp and it really works well. In the meantime I have been trying to experiment with additional wires to the doors for a fully active setup but I am struggling to do so and gave up.

So I considered the active fronts and the APBMW have nice small crossovers. The APBMWK4M does not fit in the doors I tried them the correct fitment I believe is the K4E's. the holes should line up like OEM. I have a set on order to try. So please check this before you purchase.

My single 10inch Audison sounds amazing BTW very low and deep yet controlled bass in a sealed cabinet.

 

[METAL]

Mobridge are good. I wished I went this way initially, with their amp. I am still thinking of doing it. But I have the mobridge preamp and it really works well. In the meantime I have been trying to experiment with additional wires to the doors for a fully active setup but I am struggling to do so and gave up.

So I considered the active fronts and the APBMW have nice small crossovers. The APBMWK4M does not fit in the doors I tried them the correct fitment I believe is the K4E's. the holes should line up like OEM. I have a set on order to try. So please check this before you purchase.

My single 10inch Audison sounds amazing BTW very low and deep yet controlled bass in a sealed cabinet.

I believe the K4E is the larger basket that is used for the rears. The K4M is the smaller basket for the doors.

 

[dazza]

I believe the K4E is the larger basket that is used for the rears. The K4M is the smaller basket for the doors.

I don't know about tears I think they are the same size but the "M" didn't fit

 

[dazza]

I believe the K4E is the larger basket that is used for the rears. The K4M is the smaller basket for the doors.

Here is a picture I took of my fronts OEM compared to the "M's"

The holes don't line up

The rears I am certain are the same but I am not sure

I have ordered the "E's" not sure when they will get to me.

 

[METAL]

Thats interesting.

If you look at the bavsound speakers even the image shows different speakers front and rear.

https://www.bavsound.com/products/b...MItP71lOq28AIVCyCtBh1eJw5GEAQYASABEgJ7o_D_BwE

Edit: I just watched the Bavsound GR Supra install video closely. The speakers are different front and rear.

It looks like the K4M's (smaller basket) you have are correct, they just fit in the rears and the K4E's (large basket) that you ordered should work. I had it backwards myself.

 

[dazza]

Thats interesting.

If you look at the bavsound speakers even the image shows different speakers front and rear.

https://www.bavsound.com/products/b...MItP71lOq28AIVCyCtBh1eJw5GEAQYASABEgJ7o_D_BwE

Edit: I just watched the Bavsound GR Supra install video closely. The speakers are different front and rear.

It looks like the K4M's (smaller basket) you have are correct, they just fit in the rears and the K4E's (large basket) that you ordered should work. I had it backwards myself.

I hope the ones I ordered are correct??

The pictures that I took shows the two holes line up perfectly but the top hole is off. The picture was with the OEM door speakers. I have not at this stage bothered with the rears. Rears are just for fill. You could get away with keeping them stock and it's a huge cost to replace those with little gain. iMO. They hardly work now with the JBL system. I will connect them if I pull the trigger on the mobridge amplifier..who knows I may get excited and replace them. Not sure about centre speaker yet either. They all supposed to match in theory.

I just hope the "E's" are correct because the "M's" don't fit.

 

[jorligan]

I sent a query to Mobridge USA hoping to order the amplifier. No reply. Are they really selling for $1000 as posted?

 

[dazza]

I sent a query to Mobridge USA hoping to order the amplifier. No reply. Are they really selling for $1000 as posted?

Try msg him through this forum.

 

[dazza]

I hope the ones I ordered are correct??

The pictures that I took shows the two holes line up perfectly but the top hole is off. The picture was with the OEM door speakers. I have not at this stage bothered with the rears. Rears are just for fill. You could get away with keeping them stock and it's a huge cost to replace those with little gain. iMO. They hardly work now with the JBL system. I will connect them if I pull the trigger on the mobridge amplifier..who knows I may get excited and replace them. Not sure about centre speaker yet either. They all supposed to match in theory.

I just hope the "E's" are correct because the "M's" don't fit.

I can confirm the BMW Audison K4E's fit perfectly like OEM in the doors and the tweeters click in place of the JBL's like OEM too. The crossover sits perfectly behind the door panels. They sounds very clear. Tweeters are set to -3db

So here is my system spec so far.

Currently running a single Audision 10 Inch Sub (Dual Coil) in a sealed box placed behind the seats taking up minimal Space in my trunk with the Audison Component K4E's in the doors.

All running off a single Alpine 4 channel Amplifier connected to the Mobridge Pro Preamp

Sounds 1000 times better in all respects to the JBL 12 speaker system. Louder, Clearer, Clean and as much Bass and you need in a car this size.

No centre channel, no rear fill speakers.

Its that good I think I may leave it and not bother adding more channels or amplifier.

 

[METAL]

Glad to hear @dazza,

So I needed up visiting my local audio shop for a consultation.

Based off of what we discussed we will be doing the following:

Mobridge MOST25

Center channel delete

Focal K2's (ES 100 K) in front. Installed as a 2-way active setup utilizing the first 4 channels of the amp.

Stock rears on channels 5&6. At time of tuning it will be decided to have them playing or not.

Focal Flax Evo 8" subs (P20 FE) on the 9th ch @2-ohms. Oem enclosure will be removed and a custom backfiring ported enclosure will be built.

 

[jorligan]

I think that you will really appreciate the Focal K2. I bought mounting rings on EBAY from a guy in England who 3D printed them. Makes them fit directly into the factory locations with no issues. I have a set of Focal Access which I will be fitting in the rear, rears were going to either Dynaudio 8", Focal 8" or the Morel Elate 9". Using the center channel and mounting the Focal K2 in that spot.

 

[dazza]

Glad to hear @dazza,

So I needed up visiting my local audio shop for a consultation.

Based off of what we discussed we will be doing the following:

Mobridge MOST25

Center channel delete

Focal K2's (ES 100 K) in front. Installed as a 2-way active setup utilizing the first 4 channels of the amp.

Stock rears on channels 5&6. At time of tuning it will be decided to have them playing or not.

Focal Flax Evo 8" subs (P20 FE) on the 9th ch @2-ohms. Oem enclosure will be removed and a custom backfiring ported enclosure will be built.

That setup sounds fantastic. I am certain it will turn out well. I am keen to see how they rebuild the rear subwoofer section. Please send photos.

 

[Tsuki]

I sent a query to Mobridge USA hoping to order the amplifier. No reply. Are they really selling for $1000 as posted?

FYI, I was able to get my order through for one of these, through PM on this forum. $1000, $70 shipping to the US (from Australia). They shipped Thursday or Friday, and I received it this past Monday.

It's going to be a while before I get a chance to play with it, as I've just started buying things, but did want to let people know that this amp DOES exist! Has the MOST connectors on it, and with the "Logic7/HK/EPS/Individual Audio/Bang & Olufsen/Bowers & Wilkins MOST OEM amp replacement hardware kit for MOST Converter applications" harness from TechnicPnP, it should be pretty much plug-and-play.

Now - tuning this thing is going to be insanely daunting. I'm probably going to pay someone for that part, because the scale of this thing is just way above my capabilities, unless anyone knows of a good, high-resolution RTA for cheap!

I haven't decided 100% on the rest of the system yet. I'm not looking to go too insane. My thoughts are going with a good component set in the front (Audison or Focal K2), something to replace the rears for good fill, and then the debate is about the rears. Since they're used for midbass, I've been considering doing what a few have done, and going with a custom enclosure where the stock woofers are, and including a pair of JL 6.5" drivers, and something like a 13TW5.

I've also thought about putting something a bit better in place of the factory woofers, and seeing how that sounds, since they'll have some better amplification. Has anyone done that yet, especially with Tadda's mods in place?

I'm not interested in losing virtually any of my storage space, but I'm flexible on the rest, if anyone has any great suggestions!

 

[jorligan]

So I have the Focal K2 in the door and the front center. Focal Access in the rear surround. Putting Dynaudio MW172 in the rear with LOTS of damping and some fill. Will then have a separate removable subwoofer if necessary. Also ordered the Mobridge unit. At least for now, will be using the Focal passive crossovers. Mobridge crossovers will be between the Focal units, the Dynaudio woofers and the subwoofer if necessary.

Sponsored