Custom Sub Box Questions

[Greeko]

Hello All,

I am just about to pick up my new 2015 Tige Z3 up from the dealer *super excited* lol.

I had listened to the stock sub and was left wanting... So i was thinking about building a custom box and putting in a proper 12" sub and amp for it.

I am using a Hertz Hx300D which requires approx 1.2 cubic foot space for a ported enclosure. I was thinking about increasing this to 1.5 if I could find room for it

Once i remove the sub wall...Should I cut the fiberglass wall in behind to allow the box to sit flush with the drivers foot wall? Or should I leave that wall in tact and just allow the box to protrude?

Any feedback would be appreciated!

[JLG]

Look through my link here for ideas. The boxes are 1.6Cu Ft ea and the under helm wall had to be moved an inch or 2 to fit them. I like the flush factory like it was meant to be look personally.

http://www.tigeowners.com/forum/show...highlight=treo

[Greeko]

Thanks JLG,

I used yours as reference, I was looking to see the difference between cutting that back wall or leaving it and having the box protrude... Just a little nervous about cutting that wall.

[JohnnieMo]

A new sub box is a big job. You need to move the heater, cut the wall, cut out the support stringer, and possibly even move the electronics. Then you need to size and cut your box, finish it and install it.

Alternatively, cut a hole in the back wall and re-wire the existing sub for 600W. (although they might be doing this from factory now).

I'm not saying don't do it.... but I'd call it a winter job.

[Greeko]

A new sub box is a big job. You need to move the heater, cut the wall, cut out the support stringer, and possibly even move the electronics. Then you need to size and cut your box, finish it and install it.

Alternatively, cut a hole in the back wall and re-wire the existing sub for 600W. (although they might be doing this from factory now).

I'm not saying don't do it.... but I'd call it a winter job.

That does seem like a fair amount of work... Dang.. I was hoping to get a new sub in there before I Started the season.

I have a Exile 2500.1 I was going to use instead of the Syn 6 2 channels though... Theres a local shop that will build the box, mount the amp and have it all done in 2 days for $600 ish..I was thinking that was a good deal...

Any Stereo shop guys out there? Does $600 seem fair to Mount and wire an amp, build a sub box and install?

[chpthril]

2 days to build a marine box for a boat is a flag for me. Takes me 4 days just to have the box ready to go in due to the 2-3 coats min of 2-part. That doesnt even include the time needed to test fit the box over and over as you cut out the helm. Thats done after the box is constructed and before the marine coatings.

[chpthril]

double post

[Dandy]

Find out what they plan to build the box out of. If they are using a wood based material as Chp mentioned then you want to make sure they are getting a quality coat/seal on it in a marine environment. My last sub box was build for me out of Starboard (or similar material) so there was no concern of water intrusion. Also, do you have a working relationship with the shop or any quality references. $600 (especially if that is $CAN) seems low and you may not get the quality of work you would like in your NEW boat. This is an area where an experienced shop/installer will defiantly pay off - this is not a job for most of the installers at Best Buy.

[Greeko]

They are building the box out of marine grade Birch Plywood. Last time I built a box out of Marine Ply I coated it with Marine Epoxy afterwards.

What do most shops do? Ply and epoxy, ply alone, mdf and epoxy?... I need to be educated.

This shop was recommended to my by the Local Tige Dealer, he said he has done several installs. The company is 604 AutoSound in Chilliwack.

[gwhite94]

Greeko, my boxes were made out of 3/4 inch MDF, then coted in truck bed liner then carpeted. It seems to work pretty well.

[Greeko]

Greeko, my boxes were made out of 3/4 inch MDF, then coted in truck bed liner then carpeted. It seems to work pretty well.

It bonded decently with the mdf? The carpet had no problem sticking?

[chpthril]

if the material is anything other than a composite, it needs to be waterproofed. A 2-part marine grade is best IMO for this. If the enclosure is made using a Composite like HDPE, those need to be chemically welded in order to seal them. Off the shelf glues and caulks dont stick well to those materials. A leaky enclosure is quick to hear.

[gwhite94]

no issues so far, Rhino Lining and 3M heavy duty adhesive for the carpet.

[BCRider]

Greeko, I doubt 604 would do a crap install for you. They are a pretty big name around here now. I know one of the audio installers there as well (Derek). You could always just call them and see what they usually do for materials.

[Greeko]

Greeko, I doubt 604 would do a crap install for you. They are a pretty big name around here now. I know one of the audio installers there as well (Derek). You could always just call them and see what they usually do for materials.

I didn't think they would, they have a good rep... The owner said he would use 3/4" plywood.