Scotts97C4

I want to see how you installed your sub or subs.

I'm thinking of puting a sub in my 87 coupe behind the passenger seat.
maybe behing both seats. with the amp in the locking compartments in the back.

GQ-ROD

You need to make sure the amps have cool air and the compartments won't provide adequate air flow to cool them unless you are going to run fans.

rrt898

If you use digital amps, you will not have a heat problem at all. I have 2 PDX amps on the drivers side and the sub enclosure on the passenger side.

Scotts97C4

I love that look, but i want to install behind the seat into the box.
So it wont be seen.

Polo Vert

I don't mean to hijack but I would like to see an intall on a convertible so I get get ideas for mine.

rrt898

The amps won't be a problem. You can stack them in any space, anyway. As for the sub, You would have to invert the sub but; I don't know if you have enough room. Just make sure you have enough cubic air space for the sub you choose or it will look great but; sound horrible. Then you could keep the compartment frame and doors for the stock look. I thought about that look also. You can't tell from the picture but; the whole floor in the back is carbon fiber vinyl.

Good Luck with the build...

RandyJ75

If you want a good sounding stealthily system in your C4, there are several things you can do.

1. Raise the sound stage in the front of the car; You do this by using a component speaker system and installing the tweeters in the upper door, dash, or in pods attached to the A pillars.

2.Rear fill, or rear speakers are a waste.

3. You can mount 8" subs in the rear speaker compartments.

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This is a picture of my old car. This works well because it you do not lose any space.

Hope this helps.

Randy

Goldcylon

I had a wedge shape sub box installed. Does not interfer with the spare top and still plenty of room in the rear

WGlen C4

Here are some pictures I took this morning. Plenty of Sub for the car!

https://plus.google.com/photos/11700...I6ZpL-5-9bv2QE

PowerJunkie

Here are a couple of photos of the install I am currently in the middle of in my 96 vert. Subs are in the stock rear locations. Amp rack raises the entire floor of the trunk up about 1.5"

AGENT 86

Another with 8" subs in factory rear locations. 4x150 amp under passenger seat.

Eakster

I have my amp flat on the back shelf behind passenger seat, screwed to MDF under the carpet, with a very thin black cloth covering it - totally invisible from the outside and not heavy carpentry. Then you have the choice of two 8 inches as above or a 10 or 12 in the storage bin. The Audio/Electronics forum was a huge help in my build

GREGGPENN

Dual 8's and a 4x150 amp. Acoustic "ozite" as speaker grills. Looks like carpet but lets more sound through. (Maybe I'll redo and raise the speaker plateau -- making everything flush?)

Need to make an amp trim piece/border...or figure out a way to hold the carpet tighter around the top of the amp.....

5abivt

That's the setup I would want. Are you guys custom building enclosures for the 8s? Also what kind of liner are you using there is it pre cut or self applied? Looks like a fantastic job very clean.

I used to have 2 10s in the back with the amp mounted below the passenger seat. Absolutely pounded and it was just too much for me and weighed more than I liked and killed trunk space.

I switched to a amplified bazooka bass tube. For $100 or so it sounds fantastic and barely takes any room . Like someone mentioned above I added tweeters to the door panels and it made the biggest difference. Pioneer head unit with Boston acoustics in the factory Bose enclosures front and rear. Makes my buddies 96 with factory speakers sound like an absolute joke.

AGENT 86

My speaker cavities were lined from factory. I left it in tact and made mounts for speakers. I removed the inner wheel well and applied the same deadener(2 layers) you see in the pic, to the backside of enclosure. They supply more than enough base for me.
Like you, I did not want to give up any cargo space.

therbst

After the install I covered the subs and the side boards in black leather

Eakster

This is very cool ! Nice use of the lettering

GKK

Here's my 10" Bazooka Tube setup.

WGlen C4

I have always installed subs with the rule that you should not try to create frequencies that have a wavelength larger than the inside of your car. That's why I used 2-6"s and 1-8".

I maybe be wrong but, I was always told that a frequency has to travel a 1/4 wavelength in order for you to hear it.. Ex. 40Hz wavelength (the lowest a 8" can usually produce) is a little over 28 feet. So if you don't have 7 feet of distance in the cockpit then you are only feeling the air pressure not really hearing the direct sound unless it is ricochets off of something. When you ricochets sound it gets loose and muddy sounding.

That's why a 18" sub sounds good outside of a car but there is just vibration inside the car. It needs 15.5 feet to get 1/4 wave to hear 18Hz. I argue with my son that I install my stereos for me in the car not everyone else outside the car. I found this to be a good rule of thumb for true Bass, i'd rather see multiple 6's and 8's and have crisp sound you can hear than rattle my license plate and mirrors. Sorry I must be getting old. :^)

Putting subs in a Vette is definitely a challenge, for sure. But the car being a large fiberglass and glass enclosure sure helps.

My $.02

GREGGPENN

Thanks! How'd you know it was the rare A1 (amp RPO)?

It actually made me a bit nervous to install the lettering. After removing the cover, I found the output transistors mounted along the underside of the lettering "plateau". I had to remove them before being able to remove the OEM lettering.

It was a closeout amp so if I messed it up, the amp was "mine". LOL