Test 1, 2, 3...

Interesting. You purposefully spin my question and then begin to argue against your own claim. A strawman at its "best." I asked whether the individual read the whole thread, as his comments did not follow what was already posted. There's a world of difference between that and your disingenuous assertion asking whether one can read. Too, if you can illustrate how I misrepresented a post, please do so. Just saying it is equivalent to blowing smoke. How does he know without listening to the setup in the car, as he as no idea as to the room gain and in-cabin response. Why do I feel like I'm repeating myself? Clearly, you've read my others posts and we still get this gem of…

(somehow I doubt that you're laughing) If you can explain how to model room gain with nothing to go on other than a pic, you may revolutionize audio as we know it. If you can do the same with in-cabin response, the AES would make you an honorary member. Who the fruck make this guy a member of the tech team? This is Audio101. That's equivalent to asking, "When did you stop beating your wife?" Please illustrate your claiming the enclosure is too small. I'd love to see this. Ahhh...so all 8" subs are the same. Brilliant. So what? 1. As was already illustrated, the enclosure is not too small, regardless of your wishful thinking. 2. <sigh> Are you another poster who …

double post ?

1) New style heat-sink 2) Updated crossovers - not like these, but still very flexible 3) Upgraded power supply FETs 4) Part number change to SAX-125.2 (it really is ridiculously underrated so we adjusted the part # a bit) The 100.2 that are currently for sale have the new heat-sink design right? I have seen it advertised that they have them in stock w/ new heat-sink or is that a type-o?

Sorry, folks, but I have to go. Work calls and I've spent way too much time playing around. BJ, I will be in touch. All the best and good luck to all!

Sorry, I missed your question. It's not a racecar; it's a street - legal racecar that I drive as much as possible. As you mentioned, in a (pure) racecar an audio system is ridiculous. FWIW, my road course machine is just a shell. ---------------------------------------------------------------------------------------------------------------------------------------------------- Sorry, folks, but I have to go. Work calls and I've spent way too much time playing around. BJ, I will be in touch. All the best and good luck to all!

Guys, I'm asking for ideas as to making the box better, given my constraints. I'm not here to fight. If you can't do that, please don't post. My original question has been answered. Unless there's some relevant information to read, there's no reason to stay around. My thanks to BJ and Denim. I apologize if I forgot anyone

(somehow I doubt that you're laughing) If you can explain how to model room gain with nothing to go on other than a pic, you may revolutionize audio as we know it. If you can do the same with in-cabin response, the AES would make you an honorary member. Who the fruck make this guy a member of the tech team? This is Audio101. That's equivalent to asking, "When did you stop beating your wife?" Please illustrate your claiming the enclosure is too small. I'd love to see this. Ahhh...so all 8" subs are the same. Brilliant. So what? 1. As was already illustrated, the enclosure is not too small, regardless of your wishful thinking. 2. <sigh> Are you another poster who …

Estimate the lows? Impossible? Lol, so what makes you assume you know better then? Ever built an enclosure that is too small and listened to it? I haven't used that 8, but every ID sub that I have played with preferred the enclosure on the larger side of their recommendations. Their marketing department is eager to put smaller enclosures as recommendations, but that doesn't mean they really should be recommended. Could I be wrong? Sure, but I really doubt it. Go ahead and build an undersized enclosure for your 8's and see how it is. I'd guarantee though that a single 10 in an optimized box will give you nicer output and definitely act more like a sub. Take a step…

I ask questions so people can get answers, most are predecided and want someone to just reiterate what they like even if it is the wrong answer. I won't do that. It's not the questions; it's the firm opinions on configs/gear that you've never heard. That doesn't exactly make one credible. Exactly why I rounded down to 10lbs or 66% of the weight of MDF. It won't be quite that light though. .9 came from ID direct: http://www.imagedynamicsusa.com/manuals/iD/ID8D2%20V.pdf .35-.45 is recommended. I used the lower of the two and then added the volume of the two drivers which gets us to .8-.9. I did read that you said .6, but again you ask to have a nice sounding system an…

I ask questions so people can get answers, most are predecided and want someone to just reiterate what they like even if it is the wrong answer. I won't do that. Exactly why I rounded down to 10lbs or 66% of the weight of MDF. It won't be quite that light though. .9 came from ID direct: http://www.imagedynamicsusa.com/manuals/iD/ID8D2%20V.pdf .35-.45 is recommended. I used the lower of the two and then added the volume of the two drivers which gets us to .8-.9. I did read that you said .6, but again you ask to have a nice sounding system and for that it means the sub is supposed to play the lows. Putting two of them in that small box won't help with that. As I sai…

Sorry to come across that way. It wasn't my intent. It's just that I read dozens of your posts here. Fair enough. What about the 15mm Trupan that BJ will use for the project? Please see above. I don't mean to sound rude, but have you actually read the whole thread? The size of the enclosure, given the space in the trunk and my idea of aesthetics. True. The sub will weigh ~25lbs, hopefully less. <sigh> Must be nice to be a forum "expert." The internal volume of the box will be ~/6ft^3, as I said in a post located inches above yours. How you arrived at .9ft^3 is a mystery. As BJ will use 15mm Trupan - why do I feel like I'm repeating myself - what is your estim…

Hey, don't be so defensive let's just discuss this. You asked for other ideas, so you are getting them. So let's look at this weight more closely that you want to keep to a minimum. MDF, 3lbs/sq ft, sure Trupan may be 80% of the weight. The box for the pair of 8's will be around .8-.9cuft, so for easy math lets say 1ft (cubed) which is only .67 cuft but with 5 sides the enclosure will weigh 15lbs with MDF and a whopping 10-12lbs with Trupan. Each of your subs is more than the enclosure. If weight were really such a concern, I'd really like to know why using one driver with nearly the same enclosure size and the nearly the same weight wouldn't be actually your goal. Y…

I would, too. Threads like this are a riot! I went through all the boards on SSA over a period if weeks, It seems like threads/needs like mine are rare. I do have other cars, one of which will house a big, heavy enclosure with an amp to match. The bulk of the system will be installed in a couple of weeks. You may hear from me again. {edited a typo}

ohhh I'm sticking around for this one.

Pretty much, yes. I've weighed both. Thankfully, BJ doesn't use MDF. Errr..."HUGE?" It's non-rotational, sprung weight with a low center of gravity. "HUGE" is reducing the weight at the wheel. Let's not talk cars/racing, OK? I truly appreciate your advice. I did consider a single-driver option and decided against it for reasons that are irrelevant at this point. Please see the comments above.

If you want lightweight, Baltic birch ply in 3/4" will be the same or less weight than a 1/2" mdf enclosure. Considering weight & SQ are your paramount issues, I would 1) Limit the enclosure material weight, obviously IB is best, small sealed 2nd, 2) Pick my driver based on what it can do, but also with enclosure size as part of the equation, 3) Limit the overall weight of the driver as this will make a HUGE impact on the overall weight. So what am I saying? I'd use a different sub and just a single one. That will give you more weight savings than looking at just the thickness of the enclosure. If you do use both, I would argue that you aren't that concerned with …

I considered IB. It would be an ideal solution. Here are the problems. I can't use the doors, as I'm not willing to modify the stock speaker mounts relative to their depth. The rear deck would work if I could isolate it, but that would require sealing every hole in the sheetmetal, and I'm also not willing to do that, either. I wish the car was more better suited for IB, as that's what I'd definitely go with. Plus, IB can make for terrific SQ. So, a small box in the trunk is my only option. I really wish it weren't. It would solve a lot of problems. BTW, I spent way too much time designing an IB setup for my home sub - the one built into my house - and was made aware that…

Not to make this into pissing contest. but Ive been involved in audio for almost 30 years, having setup numerous CES high-end systems, not to mention freelaning as a setup pro. And I'm talking about SOTA audio. Clearly, I don't see a point to all of this, as I'm perfectly capable of making my own decisions. All I want to know is if BJ can build a box out of 1/2" material. If he can, I'll place an order. The rest is irrelevant. I'd love to heat from him! BTW, thank you for your input! Nope! Not a pissing contest my fellow Audio Guru. I haven't really read this post and wasn't even sure exactly what it was about. I saw a simple question and gave a simple answer. Maybe it…

Not to make this into pissing contest. but Ive been involved in audio for almost 30 years, having setup numerous CES high-end systems, not to mention freelaning as a setup pro. And I'm talking about SOTA audio. Clearly, I don't see a point to all of this, as I'm perfectly capable of making my own decisions. All I want to know is if BJ can build a box out of 1/2" material. If he can, I'll place an order. The rest is irrelevant. I'd love to heat from him! BTW, thank you for your input!

I've been installing and fabricating for a long time...

I appreciate the replies , guys. Thank you. I mean zero offence when I say that I gave this a lot of thought and I'm very comfortable with my questions. Reducing weight isn't a matter of debate; it's that or nothing. Thank you very much for your comments and for taking the time to upload a message.

Jerome, I responded to your e-mail from both of my e-mail accounts this morning and have responded to you three other times. It seems you are not getting my e-mails - if you are a forum reader I can respond to you here.

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