That's the route I'm going when I upgrade, shallow 10" inside the spare ................ SQ :tup:

I'm a little confused - you say 200 watts is not needed the recommend looking at 400-500 watts?

You can turn the gain down and the amp will not produce to much power. It is better to have a amp with leg room than one that is struggling.

I built a subwoofer box out of MDF for a 10" Pioneer flat piston "shollow" woofer. I made the box fit inside the spare tire, where the Bose woofer usually goes. Its a .3cu sealed box and its holding up perfectly well. I used 16ga steel grating for the grill and its strong enough to stand on top of. With about 3-400 Watts the system would sound awsome; alas I'm running with 200Watts from a pos Class-D Pioneer and its not so hot. I had a Zed/Hifonics Thor pushing it with 400w and it sounded awsome, but alas the 17 year old amplifier gave its final breath just the other day do to having a very noisy gain control.

The pioneer amp is not that great, but the woofer has gotten as many or more complements as some of the big db waggon settups.

Very stealthy.

I'll take some pictures if anyones interested.

Still doesn't seem to explain this statement to me - what did you mean? If you don't need 200 watts, why is it struggling?

This entire thread is struggling.

An 8" would be interesting lots of midbass but not much on the downlow. Single 10 would be best if your looking minimal bass, buy an amp with a remote bass control so you can tune it to your music that your playing. That's what I would do for minimal Bass, once you upgrade the Bass you will be upgrading the rest. Atleast that's what happend to me anyway.

I went with two 10" Alpine type R's pushing around 800watts I love Bass so thats why I went that route. One member here went with two 8" in a real nice custom blue fiberglass enclosure. I think he was saying he wouldn't do the eights again for lack of downlow punch. Search for the install you will know when you find it. CAS enclosure with a shallow 10" powered with a PDX 5 upgrade your fronts and you would be lovin it.

He also had them aimed towards the front of the car and not reverberating to the back of the car first. I do agree that a 10 is going to go lower than a 8 but than you could argue that a 12 is going to go lower or louder than a 10.

I went out and got a whole bunch of nice stuff,Alpine PDX-5 amp,Polk Audio db6501's,Kenwood 10in.Excelon shallow sub,MTX re-Q5(for now I haven't decided on a HU).
I can't put any of this in on the weekend b/c the Z nationals are 2hrs.away from me.:tup:

Nice take your time no rush.

Nice choices, what sort of enclosure you looking at for the 10?

Yea I suppose you could argue that but a 10" covers more of the good stuff than an 8" but going to a 12" from an 8" don't think that would be the sound he was looking for.

The 10 he picked is perfect for his application, figured he would upgrade the fronts wise choice.

I was going to pic up one by Wicked C.A.S. but after thinking about the $450.00 and all the installs and boxes I did in the past,I'm going to make a flush mount .325-.350 cu ft box in the spare tire well(material undecided at this point)one thing I always like to do after I'm done I take it to my local Line-X bed liner place have them place the box upside down and shoot it with the bed liner stuff it adds protection and seals the box well then I carpet the top.

Yea they are expensive, fiberglass time and make your own.

Just make sure the sub will "work" in that small of a box, some shallow subs need a little more. and don't forget to take the volume displacment of the sub.

This would be best, box goes where you want and you don't waste space with thick MDF.

Yeah glass takes time but I think I have found a way to get .35cu ft using MDF and still remain flush,lucky for me that my car is a weekend driver only and occupies a 2 car garage by itself so I have plenty of time to build this.

I know how to use fiberglass (we use it at my work auto body)but I really think I can swing the MDF it will be tight but that's what I want so I have very little movement in the spare tire well.

actually I rechecked and the box would be more like .45-.50cu ft.:tup:

That would cover most shallow 10's, giver!

Someone did a MDF a while back and it came in close to .35, if my memory is correct. He stacked cut out circles of 3/4 inch MDF to create the enclosure. It was loaded with a 10" Pioneer thinline. Jeff Smith measured the internal volume of the spare cavity and it was .64 .... more info here:

http://www.the370z.com/audio-video/4...html#post66212

Keep us posted, I look forward to your finished product :tup:

John

In another month or so mine will be out if you can wait. Having a few z owners get a test fit run soon.

Yeah I know of him he used glass which will yield you a little more room(I personally don't like using it)but with the MDF I have a little freedom elsewhere,the box that I'm making is a stacked ring set up too,but if you look at the people who have made them the rings are too thick,cutting down on volume plus I seen one that the bottom was on top of the spare tire hold down bolt mine will go to the bottom of the spare tire.

It is allot of extra work but I have the time and patience and I want it to like it was suppose to come that way from Nissan.:icon17:

Yup I made one just like that for my 280z spare tire well. I used my router to cut out the rings stacked and glued it all together worked well, till it got wet somehow anyway swelled and split. That was a long time ago though, I would do the bed liner trick if I were to do it again.

If you got the time might as well do a top notch custom job.

Pics on your progress would be awesome, nice to see people doing their own work.

Yea, I look forward to seeing the finished product. I think this is the way to go for the DIYer......... and the bedliner trick would finish it off nicely.

Do you have any preliminary pics or info like material,size,weight.

Fiberglass probably, not going to stick out of the top of the floor going to have two options with or without spare tire and may have an option of a alpine pdx5 to fit in it as well.