Hehe, guess what I'm doing!

[elwesso]

Hey PMQ,What size woofer would your "stealthbox" accommodate? I hope a 10".

D.

He said he can make them accomodate up 10 and 12, MAYBE 15...

12 would probably be best...

[PoorManQ45]

Hey PMQ,What size woofer would your "stealthbox" accommodate? I hope a 10".

D.

Yep, it'll accoomidate a 8, 10, 12, and I may be able to get a 15 in there if I angle the baffle slightly upwards.

Now, when I actually finish the first one and you see if you like it or not, if you decide that you want one it would be best if you would tell me what sub you are planning on using in it. That way I could cut the hole to the exact size(not all drivers have the same mounting diameter), and I could decrease the air volume(if require), and possibly even port it for you.

I'm thinking a sliding scale for the price would be appropriate. Like if you wanted it ported that be like an extra $20, this isn't because I'm trying to screw you or anything, it's just that it requires quite a bit more effort then just a sealed enclosure.

I have a question. Do all G50s have that "charcoal" grey/black trunk liner?

[elwesso]

Yes......

[ddrumman]

Hey PMQ,

The sub would be an ID MAX (Image Dynamics).There are two choices on the 10”. One is: 10 v.3 D2, and the second is 10 v.3 D4. Same goes for the 12”.

I will definitely make up my mind between the 10 and 12 by the time you finish your prototype. I am more of an SQ guy rather than SPL. Chances are I’ll go with the 10.

Here’s a list of good quality subs that you guys can play around with:SQ1.Image Dynamics 2.Resonant Engineering - HC (SQ/SQL)3.Adire Audio - Brahma (SQL/SQ)4.JL Audio - W7 (SQ/SQL) or 10w3.v25.Eclipse6.Onyx7.Elemental Designs E10A, E12A

SPL1.Resonant Engineering - XXX/SE (SQL/SPL)2.Digital Designs3.Beyond Audio4.Shocker5.Treo Engineering

D.

Here's what the IDMAX looks like.

[PoorManQ45]

Ok, when I get home I'll find out the Thiel parameters.

[Rex]

PMQ - Why not suggest a good, better, best 10" and 12"?

[PoorManQ45]

That's a good idea, but you know that sound quality is subjective. I mean, it'd be better off for the customer if they audition and choose a sub, and then I customize the enclosure to suit it. That way the customer doesn't feel as if they're taking a shot in the dark for sound quality.

Make sense?

[USsil80]

i know that you said that is would accomidate a wide varity of subs... but does the box air size change to haddle the bigger sizes

[Rex]

... Make sense?

Not coming from the guy that always quotes sensitivity numbers like they're the end all be all factor when choosing speakers .

[PoorManQ45]

i know that you said that is would accomidate a wide varity of subs... but does the box air size change to haddle the bigger sizes

Do you mean, is the enclosure for larger drivers going to have more airspace? No. That'd require quite a bit more work. What I'm doing is maximizing the beginning airspace, and if needed I can REDUCE the air volume.

Not coming from the guy that always quotes sensitivity numbers like they're the end all be all factor when choosing speakers .

Hehe, Sensitivity is very important. I wish Altec Lancing still made their 15s/18s that had 99dB 1w/1m sensitivity and handled like 50 watts RMS.

[USsil80]

yea the air space is what i was talking about.... 15 take alot more than 8

[Rex]

yea the air space is what i was talking about.... 15 take alot more than 8

Yes, but if he makes it as big as he can, then poly-fil can be used to effect more air space and other materials can be used to effect less air space.

[PoorManQ45]

Update: Mold is out. Reinforcing some of the areas that are a little thin. Oh, I've found that it's alot easier to just take the angle grinder to it instead of trying to sand it down.

[DrewQ45]

Having spent some time lately laying on my back in the trunk - (working on my audio system) I can confirm a few things.

1. There is a pass-thru from the trunk to the gas tank area via the jack compartment. This means that you can port the sub through that hole. The scissor jack would have to be relocated (preferably to a garbage can since it's a POS... and too flimsy to support the weight of the Q anyway)

2. There is no room for an effective sub of any kind in the enclosed gas tank area. Years ago I installed a power amp in this area by screwing it to the underside of the package shelf...that's about all you can fit there.

3. PoormanQ45, you are one sharp individual for thinking this up. Hats off to you. I've done a bit of sound work on the Q so anything I can do to help....

Have pics and will post when I get a chance.

...Drew...
Modified by DrewQ45 at 11:30 AM 5/16/2005

[PoorManQ45]

1. There is a pass-thru from the trunk to the gas tank area via the jack compartment. This means that you can port the sub through that hole. The scissor jack would have to be relocated (preferably to a garbage can since it's a POS... and too flimsy to support the weight of the Q anyway)

Good idea, but that'd be a really big PITA because it'd be really hard to remove sinse the enclosure would be covering up the port. Thus you couldn't remove the port without removing th esub first. But good idea.

2. There is no room for an effective sub of any kind in the enclosed gas tank area. Years ago I installed a power amp in this area by screwing it to the underside of the package shelf...that's about all you can fit there.

Yep, that's what I've been saying. BUT there is room in the rear deck. Where that little compartment is. There's enough space there to fit a 10, possibly a 12, in an Aperiodic Mat enclosure.

3. PoormanQ45, you are one sharp individual for thinking this up. Hats off to you. I've done a bit of sound work on the Q so anything I can do to help....

Thank you. I'll ask if I need any help.

Having spent some time lately laying on my back in the trunk - (working on my audio system) I can confirm a few things.

Did you get gagged and bagged...again

[DrewQ45]

“Good idea, but that'd be a really big PITA because it'd be really hard to remove sinse the enclosure would be covering up the port. Thus you couldn't remove the port without removing th esub first. But good idea.”

It was actually Wess’ idea… I won’t take credit since you don’t think it will work ( jk Wess!). What if the port was simply a hole in your fiberglass glass enclosure with a tube intruding inwards into the enclosure (sorta like most ports)? The exterior would have a rubber gasket around the hole (stolen from around the trunk lid, who cares if it leaks ) that would mate up to the lip of the jack enclosure. The jack enclosure would need to be modified to have a corresponding hole the size of the port…maybe even a small lip extending ½ inch to create a good seal but still leaving room for removal. If one wanted to get fancier, a separate tube from the jack opening could run into the gas tank area or even right into the package shelf… (car owner’s responsibility of course). Don’t know if my words paint a clear picture… let me know if I need to elaborate.

“There's enough space there to fit a 10, possibly a 12, in an Aperiodic Mat enclosure.” … WTF??? Did you just insult me? Aperiodic whatchamacallit? (running for Google) Take it easy with those fancy terms as I am a mere DIY’er. Use those terms on me again and I may have to gag and beat you with the jack as it’s good for nothing else.

[elwesso]

Just let the jargon fly over, Drew.....

PMQ get the damn box finished, so that i can put it in there... once its done, its going to be sexy.. a 12in sub, NOS, fuel cell, battery and golf clubs all in my trunk... And still room to spare!!

[elwesso]

PMQ, hows it coming????

[PoorManQ45]

You are an impatient one Wes

Just got back from a small fishing trip(weekend). So no progress. More info later

[gloucester Q]

hey as long as this is back at the top, i'm getting interested too... 10 or 12.

[ddrumman]

You are an impatient one Wes

Just got back from a small fishing trip(weekend). So no progress. More info later

Hey PMQ maybe it's not just Wes that's being inpatient.

I looked around the web and found some cool info that might give you ideas that you can use or inspire new ones of your own.

http://web.njit.edu/~cas1383/proj/main/

Peace.

[PoorManQ45]

Oh thanks man, now I'm going to have to start a new project

Thanks for the link though.

[skywise6854]

hey man this is really cool that your workin on something like this i had a guy quote me some astronomical number to make me that same box i am definitely interested

[elwesso]

Sky, I see your in MD. Theres a new meets scene growing out there that is gonna be HUGE.... Check this out zeroforum?id=155

[ddrumman]

Oh thanks man, now I'm going to have to start a new project

Thanks for the link though.

No problem. I've been into car audio for quite a while, and I've NEVER seen a Q done right.

The one that would be my absolute favorite would be the "sound deadening" part. I'd love to see someone rip everything out and start from scratch.

It'd be cool to see a Q with Maybach type of "sound deadening" materials.

Maybe one day.....

[elwesso]

I agree... Thatd be a great weekend project, to pull the entire interior of the Q and dynomat the crap out of it... Floor panels, roof, doors, and so on... It would be great......

[PoorManQ45]

The one that would be my absolute favorite would be the "sound deadening" part. I'd love to see someone rip everything out and start from scratch.

That's coming

I agree... Thatd be a great weekend project, to pull the entire interior of the Q and dynomat the crap out of it... Floor panels, roof, doors, and so on... It would be great......

. Have I not taught you anything? Dynamat is overpriced CRAP. Raamat is half the price with the same results. Also, rubber coating in a can works wonders . I'm about to take out the back seat deadning and spray the metal with it. I'll probably build it up to ~1mm(very thick). THEN I'll put dedicated sound deadning material on it.

*edit* Project postponed today. Building another enclosure from MDF for that diamond audio sub. I feel it is completely unworthy of being in the Q

[elwesso]

I was using dynomat as a universal term... Im sure anything would be better, especially if you use a LOT of it.

[PoorManQ45]

Yeah, I really don't like how dynamat has become synonymous with sound deadning.

It's kind of how NOS is synonymous with Nitrous Oxide

[elwesso]

Must... have.. bass..... cant... take... treble... much longer.... quickly... *gasp*... PMQ before its too... late......