I hate Scammers.

 

Bad bad news...this guy must have no pride. To send off crap like that? Inexcusable.

 

This guy better crawl under some rock! and not come out! because I hope the sky falls on his head.

 

Wow, holy moly. That is a bad box. Im sorry this happend to you.

From the pictures, you posted of the box you recieved I know that he DIDNT use MDF for that box, that matieral is Press board and not as dense as MDF. You couldnt fix that box, youd have to build a new one because of the matieral used. Looks like he use 1/4" hardboard for the amp rack. Witch is not finished off nicely with the vinyl

Sorry you got ripped off sometimes its just better to do things useself and save the head aches and dissapointments.

 

one thing: there is no proof that a well built particle board box is any worse thana well built mdf box in a simple single sub or dual sub enclosure. not sure why screws are used, i alweays go wtih woodglue and nail gun, no splitting and fast and clean. and i will use white caulk on the insides.

i do use 100 percent mdf myself, but just want to say that his problem is not neccessarily the use of materials, but how POORLY the particle board box was assembled...sigh

 

wow... good luck at getting your money back. that craftsmanship is HORRID.

 

Come on, you seem knowledgeable in car audio, there is no way in hell you would ever use particle board for an enclosure. I wouldnt even use it for an amp rack.

 

You could not be more wrong. MDF is MUCH denser and has a significantly higher resonance, well outside that of the passband of this system (given the same bracing)

A sealed system works just as that .. using a determined volume of air to give a certain system compliance. The woofer uses this back spring to determine its behavior. If the box is flexing, the spring is dynamic, not what we want. You want the deadest of dead enclosures, basically invisible acoustically, only adding a certain air spring to the box. MDF, although not "ideal" is a very good enclosure material if unbraced portions are kept under ~12" ... I prefer 7".

Jim

 

jim, i know hat you mean, and like i said, i use exclusively mdf..

but, having said, that

would yuo be willing to make a bet with me?

i will build two enclosures, identical in size, and carpet them identically and load them with the same sub.

now, one will be out of particle board, one will be out of mdf.

i will bet you 1000 bucks, that you cannot tell whcih box is whcih? if you agree, i will fly down thre and we can do the blind test...i am being dead serious..anyone else who think they can hear a difference is welcome to join too

what do you think? again, my point is not to say he SHOULD have used particle board, becuase like you, i use MDF just becuase theoritically it is better for sure... but more that my disgust was with the way he BUILD the box.

 

Michael Minervini of “Car z Kustoms” also ripped me off for about $250 for a polished plenum last February. Before I sent him my plenum he sent me all these great pics of how well he did the polishing on his own bike. I was still a little bit skeptical of the whole thing with him being in Massachusetts and me in New York but I decided to take a chance being that he was a forum member. That was a huge mistake. Long story short he sent me back a half-assed plenum that had a dull-*** surface polish. By surface polish I mean the boltholes and sides of the plenum had not even been sanded or smoothed let alone polished. To add insult to injury when I brought it up to him he refused to give me a refund. It was not until I informed him that I paid someone local ($400) to re-do my plenum the way it should be done, that he then offered to re-polish the plenum. I was thinking to myself, "Hey, GUY the plenum has already been re-polished what the hell can you do for me know except give me a refund."

Well I tried the Paypal resolution center route and unfortunately they do not offer returns on services rendered. Oh well lesson learned. Well, I feel badly for all of us who have been scammed by this jerk but I am glad this thread was created. FYI his screen name on 350zmotoring is "gtabadboy." he should have a huge buyer beware next to all of his posts.

This is the pic he sent me prior to mail me back my plenum. You think it was far enough away?



And this is the second picture:



This is after a local shop: www.carsmeticsinc.com re-did the job:

 

well...it is probably safe to say that this is his LAST post on this site...

 

This is why I love this board. People are not afraid to warn others about scammers.

Give him a refund. Your work sucks, the product is oviously inferior, and you don't have the self respect or the nads to deny it!!!

 

LOL, im going to be running an Imagine Dynamics IDMAX 10" in this thing that runs at 1000watts rms...1800 watts max....

 

Thankyou.


Particle board would be a horrible choice for any high spl sub. I'm sure you could get away with using it for an entry level sub like some crap Rockford Fosgate but no serious car audio enthusiast would allow particle board to be used.

 

Back in 1999, I was working at a shop here in St. Louis. We did this test and made it a display for people to understand the difference between a quality product and a not-so-much quality product.

We built two boxes, both 1.0 cubic feet. One of 3/4" MDF, one of 3/4" particle board. We tested both boxes in a 1996 Eclipse GSX hatch w/ the sub firing rearward. The test sub was a Boston Acoustics Pro Series 12.5 4 ohm sub powered by an MTX 2300 running off of an Alpine CDA-7949 (yeah baby). We tested w/ an SPL meter. The MDF enclosure produced 139db, while the particle board enclosure produced 134db. This isn't much of a difference to the untrained ear, but I know most of us that worked there could tell the difference.

 

I totally forgot how to compute the air space inside boxes (doh i know this sounds stupid), i measured the box and its approximately 20"x10"x9" and i told him i needed around 1.25 cubic feet for my particular sub. is this right?

 

if my math is right, you ended up w/ a box around 1.04cf