I have a 93 prelude si and am starting to build yet another install in another car, I have completed a few in the last few years but all have been basic but well finished with mainly MDF and a little fibreglass. I am know trying to expand my skills in building an install with perspex window in the enclosure, I want to model it on the install in the 2003 UK Alpine catalogue using 2 Alpine SWR1041D subs powered by the Alpine MRD-M500 (unless you have any better ideas - Amp must be Class D and not cost the earth), My problem is where to start with the perspex, What thickness and How to attach to the MDF or fibreglass, Any help would be greatly recieved.
Replies (2)
Swez on 12/15/2003 19:26:46
Not familiar with that term.. "perspex" Is this a clear plastic window installed into the box so you can see the subs? If yes, we call that Plexiglass or Lexan in the States.
The trick on installing a viewing window in a sub enclosure is to use a thick, rigid yet not too large window. Is good to recess the window flush with the box and be well sealed and supported on all sides...(like all good windows right?
Some use capped screws and foam tape to seal it tight. Others use silicone and screws. The main thing to avoid is excess flexing of the window after installed. That's where thickness of the material used and a moderate length/width ratio will help.
Swez
cplkittle on 12/15/2003 19:38:56
I believe, if I am not mistaken perspex is a type of acrylic sheet. I worked at a glass company for about 6 months, and I remember one customer asking for it, then settled for lexan. I am not sure how brittle it is, if it is somewhat flexible, or if it is just rigid. As for Lexan or Plexiglass, I would recommend 3/8" or 1/2" for 10" or 12" subs with the window no larger than 12"x16".
Replies (2)
Swez on 12/15/2003 19:26:46
Not familiar with that term.. "perspex" Is this a clear plastic window installed into the box so you can see the subs? If yes, we call that Plexiglass or Lexan in the States.
The trick on installing a viewing window in a sub enclosure is to use a thick, rigid yet not too large window. Is good to recess the window flush with the box and be well sealed and supported on all sides...(like all good windows right?
Some use capped screws and foam tape to seal it tight. Others use silicone and screws. The main thing to avoid is excess flexing of the window after installed. That's where thickness of the material used and a moderate length/width ratio will help.
Swez
cplkittle on 12/15/2003 19:38:56
I believe, if I am not mistaken perspex is a type of acrylic sheet. I worked at a glass company for about 6 months, and I remember one customer asking for it, then settled for lexan. I am not sure how brittle it is, if it is somewhat flexible, or if it is just rigid. As for Lexan or Plexiglass, I would recommend 3/8" or 1/2" for 10" or 12" subs with the window no larger than 12"x16".
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