Pros and Cons.
07-18-2006, 01:31 AM
#13
There are a lot more cons to it than pro's, aside from the cosmetic advantages that glass allows for...
if you've never done this before, be prepared for a lot of trial and error; unless you have someone that knows what they are doing help you..
There are a lot of n00b mistakes that can be avoided as long as you do some research. a big one, as stated above is mixing the resin. the resin comes with directions for a reason, mixing it 'hot' (more MEK than you should put in) makes it set faster, but the resin becomes brittle, and will not be as striong as if you used a 1-1.5% resin to MEK. another one is either too little resin, as to not fully saturate the cloth/mat, or as seem more than too little is way too much.
With MDf is it usually quite easy to determine the exact box volume, whereas with glass, and all it's contours it can be more difficult, if going sealed then you have some area to play with, but if you're shooting for an exact box volume to tune a port with, then you have to frid creative ways to find the inner box volume (rice, packing peanuts etc..)
Not enough layers is another big question I see come up quite a lot, www.the12volt.com has a dedicated sticky for this problem in ther glass section. Flexing is the main issue here, you don't want the box to flex at all, so it's obvious more layers will solve this. too many layers won't affect the performance of the box, but it will add weight that may or not be a factor in your install, I know it was in mine; I wanted to keep the weight down as much as I could, while still creating the install I wanted to have.
the proper tools on hand is another big part in how successful you are, air tools make things easier and faster, but aren't needed. A good router, and a selection of bits will be your best friend, as well as a table saw, or even a circular saw will do the job if it's the only option. there are more tools that you may need, or just find the glassing esier with, and thats where the reading part comes in...
read, read, then read some more. sites like www.the12volt.com provide a lot of beginers trials and errors, as well as just about every question you will have, has been answered at least once over there...
Fiber glass doens't make your subs sound any better than they will in a quality built MDF box, built for the subs. What Fiberglass does give you is many more ways to degrade the sound quality if not done correctly... So your best bet is to get all the knowledge you can, and go from there...
regards, Mark
if you've never done this before, be prepared for a lot of trial and error; unless you have someone that knows what they are doing help you..
There are a lot of n00b mistakes that can be avoided as long as you do some research. a big one, as stated above is mixing the resin. the resin comes with directions for a reason, mixing it 'hot' (more MEK than you should put in) makes it set faster, but the resin becomes brittle, and will not be as striong as if you used a 1-1.5% resin to MEK. another one is either too little resin, as to not fully saturate the cloth/mat, or as seem more than too little is way too much.
With MDf is it usually quite easy to determine the exact box volume, whereas with glass, and all it's contours it can be more difficult, if going sealed then you have some area to play with, but if you're shooting for an exact box volume to tune a port with, then you have to frid creative ways to find the inner box volume (rice, packing peanuts etc..)
Not enough layers is another big question I see come up quite a lot, www.the12volt.com has a dedicated sticky for this problem in ther glass section. Flexing is the main issue here, you don't want the box to flex at all, so it's obvious more layers will solve this. too many layers won't affect the performance of the box, but it will add weight that may or not be a factor in your install, I know it was in mine; I wanted to keep the weight down as much as I could, while still creating the install I wanted to have.
the proper tools on hand is another big part in how successful you are, air tools make things easier and faster, but aren't needed. A good router, and a selection of bits will be your best friend, as well as a table saw, or even a circular saw will do the job if it's the only option. there are more tools that you may need, or just find the glassing esier with, and thats where the reading part comes in...
read, read, then read some more. sites like www.the12volt.com provide a lot of beginers trials and errors, as well as just about every question you will have, has been answered at least once over there...
Fiber glass doens't make your subs sound any better than they will in a quality built MDF box, built for the subs. What Fiberglass does give you is many more ways to degrade the sound quality if not done correctly... So your best bet is to get all the knowledge you can, and go from there...
regards, Mark
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