[GTATX]

Originally Posted by ResidualJinx

Man GTATX you got some pretty decent mods going on bro!! Looking forward to the installed pics. I'm still looking to score a 12.3 screen but couldn't find anything promising on eBay

I'll post some pics tomorrow. Sound is amazing and bass is great. I'm sure install could have between better but works for me without screwing things up or tearing anything apart.

[GTATX]

Originally Posted by ResidualJinx

Man GTATX you got some pretty decent mods going on bro!! Looking forward to the installed pics. I'm still looking to score a 12.3 screen but couldn't find anything promising on eBay

Here u go. I had it behind seat, between pass through but this set up was the best sound and fitment. Thx

[devil84]

Hi. Does anyone know what ohms are the oem BW underseat woofers. Thinking of adding them to.my HK set up as I understand the BW woofers can take 250watts

[omgmike]

Originally Posted by shellbmb

Talked to another shop and they recommend a custom enclosure with the speaker mounted directly behind the ski pass-through opening. That's the weakest part of the sealed trunk so in his experience, that allows for the best sound into the cabin. He was recommending a JL Tw3 compact speaker in a custom sealed enclosure.

Which shops have you been talking to? (I realize I'm like three years late to this post, lol) Mothers? Custom Sounds?

B&W wasn't even an option when I placed my order at the beginning of October, so I'm definitely going to spend some coin upgrading the audio. Was thinking a custom sub box and swapping out the cabin H/K speakers for Focal or similar.

[subterFUSE]

If sound quality is the primary consideration, I would mount the sub as close to the rear of the trunk as possible. Less cancellation that way. Putting a sub up against the rear seat backs will result in a phase cancellation from the trunk lid reflection.

[Jacob_Tyler_Freed]

Originally Posted by shellbmb

Just curious if anyone has added a subwoofer to their B&W system. And if so, how easy it is and where do you tap into? Obviously the battery is very easy to access in the trunk, but curious where you would tap into a signal. My plan is to take it to a reputable stereo place to see what can be done. I'll update this thread if nobody else chimes in.

Just some info, BMW placed two subs on the floor underneath the front seats of the car to prevent rattling and unwanted vibrations in the cabin.

I'm surprised though that the Bowers&Wilkins is not enough to deliver the right sound for you.

Best of luck.

[neoprufrok]

Originally Posted by Jacob_Tyler_Freed

Just some info, BMW placed two subs on the floor underneath the front seats of the car to prevent rattling and unwanted vibrations in the cabin.

I'm surprised though that the Bowers&Wilkins is not enough to deliver the right sound for you.

Best of luck.

I'm guessing OP is aware of the subs. I am. And it's nowhere near enough bass for the car. The car is going in soon for a new amp and a replacement of the 8" subs and adding a 10" sealed sub in the trunk to help with bass extension and control. I'll report back on what it's like afterward. For reference, I am a home audiophile... run CaryAudio Amps, Paradigm Signature speakers and Rega Turntable. So for me, the B&W is better but has a lot to be desired.

[Jamesmick]

Originally Posted by neoprufrok

I'm guessing OP is aware of the subs. I am. And it's nowhere near enough bass for the car. The car is going in soon for a new amp and a replacement of the 8" subs and adding a 10" sealed sub in the trunk to help with bass extension and control. I'll report back on what it's like afterward. For reference, I am a home audiophile... run CaryAudio Amps, Paradigm Signature speakers and Rega Turntable. So for me, the B&W is better but has a lot to be desired.

I'm interesting in hearing about your upgrades (I love my Paradigm speakers)!

[Camarejh]

Check out Bavsound. Had it in my wifes X5M for the underseat subs. Sounded amazing

[crypto]

Originally Posted by Camarejh

Check out Bavsound. Had it in my wifes X5M for the underseat subs. Sounded amazing

Been getting Facebook ads for them for a week now. The ad has them pulling the sub from out from under the seat and installing theirs. This is quite an old thread but first thing I just thought of thanks to those ads lol.

[Camarejh]

Originally Posted by crypto

Been getting Facebook ads for them for a week now. The ad has them pulling the sub from out from under the seat and installing theirs. This is quite an old thread but first thing I just thought of thanks to those ads lol.

Haha they sound really good

[bariszop]

any info on what sub and where you put it in the car please let me know I want to do the same for my harmon kardon wendy's lunch time surveyzop.com

[620turbo]

So, massively dissapointed in the Bowers and Wilkins in my 2022 M5.

Had a G30 540i with HK before and this was better. I believe the issue is the complete lack of warm and substantial bass.

Started investigating subs and amps but had a mess about before I pressed the button as this is a new car and I don't want to be messing about, nor should I have to considering the expense of this option.

So, I have been messing around with the EQ and settings, a lot the last 2 months since I picked up my brand new car.

In EQ, obviously boosted 100Hz, the lowest frequency to try and address the woeful lack of bass depth. This seemed to make it worse or at least did not address the lack of warmth in the overall sound.

I therefore got some test tones on a USB stick, 40Hz, 60Hz, and 80Hz.

I was flabbergasted to see that when playing these test tones, my adjustment of the lowest eq band, 100Hz did absolutely nothing.

I then moved the Bass up and down and this changed the amplification of the sub 100Hz frequencies.

However, when you move Bass or Treble, it pulls up the other frequencies, which makes it sound crap again.

The solution is to therefore counter this effect of increased mid bass by the eq.

My eq setting are therefore as follows and have addressed the issue. It now sounds acceptable to me and has at least a decent amount of depth.

Set everything to middle (0), including bass and treble:

100Hz -3
200Hz -3
500Hz -2
1KHz -0
2KHz 0
5KHz 0
10KHz 0

Bass +10
Treble +2 to +6 depending on tune
Fader -2 to -3 depending on tune

Sound stage - Studio. Some of the other sound stages sound good but as other posts, seem to lose some of the already seriously lacking sub-bass.

Hope the above helps.

No idea why the system is like this in these cars. Someone seriously messed up. The above settings address this to a certain extent and make the system sound much more premium.

I will still consider getting a sub but at least now I can listen to it and smile, albeit more marginally than I would perhaps have liked.

[Pzl1nz00]

Originally Posted by BlueBMWM5CP

I agree the B&W sounds great with excellent recorded sources but missing a true sub with separate adjustment.

I have B&W 802's at home and been fan of hifi audio since young kid but it seems regular driving around music does not sound as good as it could in the M5 B&W system.

It's extremely clear but missing warmth if someone figures out how to fix this let me know.

I almost wonder if the HK is better for everyday music seems to have more warmth smoother highs and deeper bass when listing to average recordings but the brand and the lights sold me lol.

Has anyone else had this issue or do I need to play with the EQ more

Plus the exhaust sounds so fantastic with engine in Sport Plus with transmission in D3 I keep turning off the sound system!

I had 802s and upgraded to Focal Sopra 3s, truly amazing and some of best under $50k.

We have Revel Salon 2s as well.

Follow setup instructions for EQ and system gets incredibly good for a vehicle based system!

[josec70]

Originally Posted by Pzl1nz00

I had 802s and upgraded to Focal Sopra 3s, truly amazing and some of best under $50k.

We have Revel Salon 2s as well.

Follow setup instructions for EQ and system gets incredibly good for a vehicle based system!

Thanks for taking the time to post the video.

[ResIpsaLoquitur]

Originally Posted by GTATX

Here u go. I had it behind seat, between pass through but this set up was the best sound and fitment. Thx

GTATX, sorry to revive a dead thread. I’ve now been through 5 sets of BavSound’s under seat Ghost sub kit, and I’ve been doing a lot of research on the Kicker Hideaway based on your post because I am sick of dealing with replacing them.

Today, I went to the installer and showed them this thread (your post mainly) and told them this is what I wanted to have done. I was going to PM you about this, but I thought asking you on the thread would leave some info for someone else needing help with this in the future.

I’d love to pick your brain on a couple of things based on my conversation with the installer if you don’t mind…

There is some concern that the rear deck under the windshield isn’t too solid. Seems like just banging on with my hand hard enough gets it to rattle. Does you rear deck rattle underneath the sub with music playing?

And how strong are those straps, doesn’t it shift around? It looks like it could slide and inch or two in each direction constantly. And do you have the straps secured to the two posts for the head rest? Does it stay out?

Did you have the bass knob installed? Where did they run/hide the wires and where did you place your bass knob?

Booked my appointment already, but still unsure if I am going to go through with it. I trust your experience way more than the shop’s installer.

And finally, I know you addressed this with your comment about having massaging seats, but how hard does this hit? Like you, I am not looking for extreme bass. Just looking to fill the (bass) hole of my HK system.

Thanks in advance for any advice you have!

[devil84]

I know what you are going through and I have recently added an amp and sub to great effect. The general advice is that you need a big sub as the 5 series is so well insulated.

I can provide more details when I get on computer later this week

[GTATX]

Originally Posted by ResIpsaLoquitur

GTATX, sorry to revive a dead thread. I’ve now been through 5 sets of BavSound’s under seat Ghost sub kit, and I’ve been doing a lot of research on the Kicker Hideaway based on your post because I am sick of dealing with replacing them.

Today, I went to the installer and showed them this thread (your post mainly) and told them this is what I wanted to have done. I was going to PM you about this, but I thought asking you on the thread would leave some info for someone else needing help with this in the future.

I’d love to pick your brain on a couple of things based on my conversation with the installer if you don’t mind…

There is some concern that the rear deck under the windshield isn’t too solid. Seems like just banging on with my hand hard enough gets it to rattle. Does you rear deck rattle underneath the sub with music playing?

And how strong are those straps, doesn’t it shift around? It looks like it could slide and inch or two in each direction constantly. And do you have the straps secured to the two posts for the head rest? Does it stay out?

Did you have the bass knob installed? Where did they run/hide the wires and where did you place your bass knob?

Booked my appointment already, but still unsure if I am going to go through with it. I trust your experience way more than the shop’s installer.

And finally, I know you addressed this with your comment about having massaging seats, but how hard does this hit? Like you, I am not looking for extreme bass. Just looking to fill the (bass) hole of my HK system.

Thanks in advance for [...]

So I don’t have the car anymore but if u secure straps to middle headrest it will not move and I didn’t have any rattle from what I recall. I tapped into the factory sub wires from trunk for the signal. I don’t have f90 anymore and on my current f93 I went with JL Audio 12inch w7 in a ported box with JL HD 750/1 amp setup. Bass is crazy and can’t imagine putting anything else.

[ResIpsaLoquitur]

Originally Posted by GTATX

So I don’t have the car anymore but if u secure straps to middle headrest it will not move and I didn’t have any rattled from what I recall. I tapped into the factory sun wires from trunk for the signal. I don’t have f90 anymore and on my current f93 I went with JL Audio 12inch w7 in a ported box with JL HD 750/1 amp setup. Bass is crazy and can’t imagine putting anything else.

I really appreciate you taking the time to respond! Thank you very much!

[ResIpsaLoquitur]

Originally Posted by ResIpsaLoquitur

I really appreciate you taking the time to respond! Thank you very much!

Thanks again GTATX for all the advice. Based on my visit with a different installer, this isn’t the route I’m going — but if I were, I’d be tempted to grab a pair and install them in the rear seat at the back of the footwell under the bench on both sides of the hump. The height is absolutely perfect for them. You do lose 5ish inches of room down there (in the depth of the footwell), but no one has ever sat in my back seat.

[Nolaf10m5]

Originally Posted by jeffscott1

JL audio amps to all speakers and a dedicated JL 1000 watt amp to the w7 12 sub

I have so many questions if you’re still around!

[Sam_M550i]

I added to my 2018 M550i an Audio Audiocontrol 1.300 Amp with built in LOC and a JL Audio 10W3 in a side enclosure. Plug and play utilizing a Technicpnp harne.