i was thinkin about puttin 2 alpine r 10" subs in teh compartments behind the seats, ive seen it done before but not sure about the sound quality. i dont want a huge *** box sitten in the back of my car, i dont think it needs the advertising :P i was also thinkin taht since the subs are facing upwards it may just be overkill for the system. any suggestions would be greatly appreciated!

 

The big *** box sitting right under the hatch is gonna give you the best sound quality. If you dont care about sound quality you can stick 8" subs in the rear strut towers instead of speakers. I can't think of anyway to mount them in the bins without fabing something ghetto yourself, or paying someone else to do it right. Could be expensive, might be cheaper to get the hatch tinted or something.
I like my amps in the bins personally cause it makes them convenient to get too and tweak, and it looks like there locked up.

 

the search function is your friend...
this is the result of a "subs in bins" search on the appearance/audio section of the forum. i imagine that it would be even better on the 2nd gen forum
https://www.rx7club.com/search.php?searchid=1909960

 

this is just one of the comments in the searched stuff. it is prettyh much accepted that the bin mount looks good, but sounds bad...but hey, its your car and your $
Quote:
Originally posted by brownmound
I was planning on making a box for a single 8 or 10" (depending on what i can get to fit, based on the required air) and putting it in the driver side storage bin area. the box would be mdf, sealed and bolted to the frame of the car. It wasn't clear if this is what you had done in the past or if you had just let the space in the bin be the sub box, which I doubt.

So, what do you think the results would be of a single 8" or 10" JL sub in a sealed enclosure in the driver side bin? Power?

Thanks


Actually that was the first thing I tried in my 87 sport...

I made a 3/4" fiberglass bottom and sided enclosure with resin bonded and coated 3/4" MDF for a top/mounting surface. It came out to just about 1CF.

An eight was useless, more bass out of the 7" ScanSpeaks I put in each tower. The 10-inch was better, but still didn't get below 45hz.

A JL 12W6 and a Gous 12inch (both about the same) sounded best, but still had a weird standing wave, even with a custom vent tube (similar to transmission line or a small vent side of a band pass) added on later. Tune porting while increased the upper end volume also increased the low end cut off. Both woofers I should say needed at least 400-watt mono or sub amp running them.

After getting frustrated with that (I didn't think accurate and low bass was too much to ask) I tried a JL 10W6 in fiberglass and MDF enclosure in the spare tire well. This was the magic number.

I had since tried two 10s and 2 12s replacing the bins with band pass, f'glass/MDF, Plexi, Plexi/MDF/Dynamat, and conventional only MDF and conventional Birch ply only enclosures in multiple FCs, and they always never compared to a single 10 or 12 in the spare tire well. I even tried transmission lines in there.

In the various enclosures, I have tried JL, Alpine, Gous, Kicker, Eclipse, Earthquake, Lanzar, almost every woofer available for both home and car audio... Only the JL consistently gave me reasonably accurate bass, that had some snap to it.

Hell in desperation I once even used 4 IB (Infinite Baffle) 10s across the top of the bins on a birch ply shelf, and it still didn't sound as good as a single 10 ported in the spare tire area.

I really want the bin area to work... it is the perfect spot... it just doesn't. Kinda like its tough to get bass in a 93-98 accord sedan... something about the car just doesn't allow decent bass unless you use an un conventional location. The bins are conventional.

Now remember the SA models are different. The whole bin design has different accoustics. One of the best sounding 81's I ever did had just woofers mounted on a panel and the panel replaceing the bin lid.

 

I have 6 x 9's mounted in the storage boxes behind my seats and my amp in one of them. I have two 10" subwoofers in a box in the back, yes it takes up alot of room but the sound is worth it. I made a cover to go over the subwoofers which also covers anything stored back there. The design of these cars really enhances the sound quality, in my opinion. However, I went through 4 stereos, several sets of speakers and 2 different subwoofers before I got the sound quality I wanted.

 

Speed/performance > sound