My opinion
 

I think you spent some good time on that box. I purchased this and have never been happer. The seats sit on the box so anyone looking inside the car would never know. You can even pack luggage on top of it... just did for Monterey last weekend.

Before it was carpeted and installed.

http://forums.pelicanparts.com/uploa...1250734967.jpg

http://forums.pelicanparts.com/uploa...1250734992.jpg

http://forums.pelicanparts.com/uploa...1250735012.jpg

After, the flash never does black carpet justice...

http://forums.pelicanparts.com/uploa...1250735068.jpg

not every sub can be run IB. actually, most sound terrible when you try it. ok maybe not terrible but no where near what they can do. i would bet my car that if you listened to a set of 8" subs in the CAI "enclosure" and then again with it sealed the difference would be night and day.


you got a tl rusty?


-edit-

here is a listing that shows what the CAI "encolsure" is... $400 for a pre-cut piece of mdf with some carpet.

http://cgi.ebay.com/ebaymotors/Porsche-911-930-911s-Stealth-Sub-Woofer-Enclosure_W0QQcmdZViewItemQQ_trksidZp3286Q2ec0Q2em 14QQhashZitem3a51e807c1QQitemZ250482264001QQptZCar Q5fSpeakers

I put a stainless steel muffler on with an 84 mm tip, opened up the air cleaner box and added a cat bypass. I can't remember what my stereo used to sound like. It's been a while.

x98boardwell - that looks interesting - what is it called & where did you get it?

is it FG?

I like educating people, and learning from them too. As I said, I don't own an IPOD, nor even know what AIFF even means. So I do need to read up on it, but I do know what my instruments read when measuring freq response and dB's. Tight verse muddy bass can even be subjective.

a good read here:.

http://members.chello.nl/~m.heijligers/ipod/Compression/compression.html


yes with audio, there is no "one" perfect answer.

aiff is a different form of an audio file with better sq. other versions that are comparable to a cd are flac and apple alac (my personal choice) which is a true lossless compression, but compression is not the best choice of terms.

What it is
 

The box is made from Audio Innovations in CA. I think they sell it for around $1,200 but I could be wrong. I bought it for $300 at a swap meet and put $120 for carpet and wiring with my JBL's which of course cost extra. I bought it mainly so I can have the sunroof and windows open at highway speeds and still hear good quality sounding music.

Bryan

I obviously need to do something about my muffler/exhaust, because it is so damn loud that all off this heavy audio stuff won't do a damn thing as long as my engine is running and I'm driving:D

---

Tom '75 targa

AIFF = Audio Interchange File Format. It's basically an uncompressed audio file directly from the CD. Its similar to WAV, but not Windoze specific. I'm a Mac guy and used to work with audio a fair amount in the olden days, and everything was AIFF. It's not a mac specific format but is often found there. Its easily convertible to red book format for CD audio.

As the original poster, it has been very interesting watching this thread evolve. Some critical comments, attempts to sell other systems, how my box could be improved, and audiophile discussions concerning the perfect bass response with no expense spared have taken this thread to an unintended galaxy far far away.
The philosophy behind the construction was to build a box that provided clear bass, was economical, didn't alter the usefulness of the back seat and was easily reversible. I successfully met those objectives. The bass response is fantastic with no vibration, allowing clarity to differentiate the difference between a bass drum and a bass guitar.
I already owned the speaker, had some fiberglass and MDF in stock so my cost was minimal. It was labor intensive but being retired I have all the time I need. Not counting the speaker and amp, you certainly could make one for less than $40.00.
We occasionally carry two young grandchildren or our 13 pound dog, so it is important not to alter the usefulness of the back seat. The carpet and the grill over the speaker prevents the dog from damaging the speaker and the fact that I can pull it out in seconds and store it in the trunk frees up the seat if needed.
If you like it or not is not important to me, I just thought that the construction technique may be appreciated. It would work for any car to make an enclosure where there is an odd shaped space available.
Cheers, Rob


'Tis better to have loved a short woman than never to have loved a tall

Heh heh, welcome to Pelican Rob! Don't let it get to you. As forums go, Pelican is far and away the best. You'll find out that threads can take on a life of their own (search for "How many Pelicans does it take to change a light bulb?" for a more humorous look at how this happens). Sometimes you have to reign things back in to keep on topic as you've done here.

Back on topic... Nice work. Neat, functional and doesn't disrupt the integrity of the car. Well done!

Yup, I salute the post starter for sharing his creative talents.

........and I do want to retract one of my earlier statments.........."aluminum foil worn on the head is inneffective against mind control and disturbing voices from exterior sources. Use TINFOIL instead."

More research has uncovered this fact, I read it on the internet, so it has to be true

I quote; "USE OF ALUMINUM WILL FACILITATE MENTAL INSTABILITY MAKING THE WEARER MORE SUSEPTABLE TO MIND CONTROL RAYS!!! The best metallic hats to use are molded TINFOIL lined with circular dispersal radiators (items that resemble the springs found in retractable fountain pens.) These springs should be placed every 1/4 inch and all turned opposite directions of each other... one turning clockwise, one turning counter clockwise, etc.

Remember, ALUMINUM KILLS. This is serious, I AM NOT A KOOK!!! YOU MUST LISTEN TO ME, I AM ONLY TRYING HELP!!! "


My source: http://www.amazon.com/Aluminum-Foil-Deflector-Beanie-Protection/dp/1581603762#

The CAI panel is not sealed on any side other than the front. The top is simply the carpet. The bottom, sides and over the hump are just a good appoximate fit. Sure it could be better with some sort of foam, but in the true sense, the wood front is all that's sealed.

That said, it's a great fit, looks great, sounds great, and almost invisible.

z box rear side panel enclosures
 

Hi All,
Interesting conversation,I wanted to see if any one had used the Z box enclosures on the rear side panels, they use 7 inch subs in sealed enclosures each side
I will try posting some pics of these as well as the rear enclosure for seperates on the rear deck

Still looking for a set of ads 325is to complete that period sound

Chris

It would be helpful if people posted on technical issues here on the 911 technical board, and confined their rants on other topics to PARF.

Okay, spot on technical Audio commentary then. My knob goes to 11. and reproduces 18 hz and 110 dB at that setting, using several methods of bass audio reproduction.

for good Bass you need to move air. Simple as that. push pull push says the driver in tight form.


I'm sure the prior poster RWebb has always been accurately posting in the right arena and all forums and all posts both Technical and Off Topic for all 9 thousand 7 hundred and 45 posts I'm sure............has to be.........

So thank you Rwebb for keeping this post active and at the top of the list and on point.

Putting my TinFoil Hat back on to keep the other voices at bay, unsubscribing from this thread.

cheers to all, thump thump thump.

SHHHHH, everyone be very quiet, the thread police have arrived! :D

On a serious note....
I've seen folks build custom enclosures using an old t-shirt, stretched to fit some 3D shape and then Fiberglass resin is applied to set it up. From there, fiberglass matting is applied with more resin for strength. End result would be very similar to the OP's clever use of readily available building materials.

And again less serious........with its solid construction, you could use it for a wheel chock for a semi or boat anchor if such a need arises :D

this is very technical and porsche oriented so ... a bump a bump bump

if not intrested in the audio end of the p-tech quickly go to the top right of your screen and close the window violently.

personally i have the blau brisbane 48 a media deck w/ sd on front and usb out the back lwith 6x9 tri at rear deck 6.5 component at the doors, polk audio speakers around, looking for a little bost with an amp , still like to hear the motor but thats why there is a mute button

when you are young loud music is a need
when you are old its a need to hear it :cool:

I think this is why no one buys from you... http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/493234-issue-rusty-heap.html?highlight=rusty+heap

Talk about being off topic. :rolleyes: