Z4-forum.com

Looks very nice and I'll be doing similar to mine in a couple of months.
One question - is the sub meant to be running 'free air' or is it designed to run in a small enclosure?

The sub is designed for an enclosure, but works well free air.

thats a quality setup... Looks stock too!

Nice to see the car bare aswell - can see how the roof bars meet with the sub frame!

With all that dynamat are the doors noticeably heavier now?




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Doors are certainly quieter, don't feel heavier.

Been over to Audiofile today to get the system tuned up after allowing two weeks for the speakers to bed in. The difference now is amazing, the Audison Bit 10 has been fully set up now and adjusted. The sound is now absolutely incredible, I was pleased when I got the system done, but now it is just simply excellent. Anyone in a essex fancies a listen, just let me know.

Did you also keep the 6" subs behind the seats in addition to the central sub you added?

I honestly wonder just how disappointing the OEM systems sound, even the premium one. Of course we all have different standards and expectations for such things, and what sounds good poodling about town with the roof up will sound considerably un-good at 80 top-down (if it sounds at-all...). It's one thing to demand a loud, clear soundstage with lots of detail in the highs and punchy, dry bass and another to get a shrill distorted mess with nasty rumbling lows that sound like so much farting, lol.

I'll definitely be upgrading the Professional system to Premium as a matter of principle, and I'll probably be satisfied overall. The car's engine and exhaust sound great after all...

Visionist wrote:...I honestly wonder just how disappointing the OEM systems sound....

Agreed, this is the one thing I'm seriously disappointed about, but I couldn't justify the kind of money that's gone into this setup... Great writeup.

No the 6 inch subs were disconnected as they didn't really add much to the sound. The single 10 inch JL Audio sub gives just the right amount without being overpowering.

I'm curious...

If I wanted to add a 10" Sub to my already very good 14 speaker setup, where could I tap into to get the signal?

Anyone have any ideas?

A final update, after a month or so, I was unhappy with resonating from the shelf, so gave Audiofile a call, they asked me to come back in and let them have a look. Car was in for half a day and they took the shelf out, added more dynamat and it turns out the resonating was coming from where the shelf was resting on the metal, causing vibation. All sorted and sounding good.

System is fully bedded in now and sounds pretty good.