Ok, perhaps I misunderstood since we were discussing options to go into the rear bulkhead.
Sorry. My first post on this was in response to Patrick's last where he said he just wanted to replace the door speakers as the stock ones were not worth anything.
[quote}Correct me if I'm wrong, but after I looked up your speaker set, you are using a mid/woofer range in the doors' mid range position and a tweeter in the doors' tweeter position? (With nothing behind the seats?)[/quote]
Correct. Nothing behind the seats as yet. I am using just the 2-way door positions. The thing is I chose that specific set as the bass driver specification suggest that it could actually produce quite deep bass, which turns out to be correct!
(May I ask where you mounted the cross-over? And, what does the OEM do for the cross-over? (I suspect that the OEM uses just various band-pass filter methods?)
Behind the door panels at the top front. In fact it looks very much like Murat's from the other thread. The non-Bose OEM uses a first order (6db cap) for the tweeter, and a second order (12db combo) for the bass. However, it also uses a rather nifty plastic horn on the bass driver to direct sound into the car so it does not get lost behind the panel. This is something I need to think about. Honestly, the OEM stock speakers are not good, but the installation is brilliant, and as I said before, 90% of the sound is the installation.
If I understand your setup now, I can go for your answer since it pretty much describes my suggestion with the doors . . . when I thought you were speaking of the OEM rear woofers. (ie "Don't underestimate the stock speakers.") I don't know if patrick56 has woofers in the back or not, but even if he does (and I do) changing out the door speakers has to be a lot easier!!
I am not 100%, but do your doors have only a tweeter and small mid, or are there three speakers in there? If you only have a small mid in the doors I would definitely put some 6.5" in there, even if you have to try to get different door panels. The engineering that has gone into those mounting positions is brilliant.
It sounded to me like Patrick does not have the rears, as with mine. I am still undecided as to what to do. I have a test CD of frequencies and sweeps, etc., I intend to have a play with that setting things up. If it all works out well, I may not bother with rears as the way the Focals sound is really good. I just feel a tiny bit more bass would help. However, that tiny bit more bass can also be achieved by reducing roadnoise. Most of my road noise seems to be coming from behind so I will be applying dead sheet there first.
I can't put my finger on my sound issues yet, I have the BOSE 3 element per side OEM speaker set up now being driven by my new HU's amp. This means I have (up to) 18 watts (rms) going to each door, and each woofer behind the seats. (4 X 18) It's ok . . . but it just sounds a little off even though I've done everything I can, including the HU's, rear channel low pass base enhancement for the woofers.
I'm wondering if the OEM woofers just can't keep up with the fronts now and are just being overwhelmed a little.
Try playing with the sub woofer cross over frequency and level. You may have to raise/ lower it to get the best sound. Another thing that is really useful on these Sonys os the Position feature. If you set that for Front L, the soundstage is digitally positioned right in front of you. It uses a combination of digital delay and slight volume adjustments to achieve this. There is also a fine adjustment to get it perfect. Apart from putting the sound stage where it is best for you, it tightens the improves the bass, in that if you think, you have the two bass drivers at different distances from you, so the sound is reaching your ears with a slight delay from one of them. This can sound slightly disorientating. When you use the Position feature it digitally delays the first bass signal in order to improve that timing. Definitely worth a play. I am still learning and playing with this Sony all the time, and there is still much to learn.
Let me know how you get on. If you come across any fantastic tips I would apprieciate them. However, experimentation is all part of the fun.