Null


2savage4you

  • Karma: +14/-1
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #25 on: October 24, 2007, 01:04:59 PM »
So now that you know we're talking 6x9's what's the diagnosis?

The box need's  some type of sound deadener inside  like dynamat or a thin mat, some people have even used house insulation off the roll. I dont recomend that.

Being the box is more fiberglass than wood it will sound like a old am radio ( tinny)  It needs some depth to it.

 Maybe check your local stereo shop and see what they  use?

2sav
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

UNDONE

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #26 on: October 24, 2007, 01:14:21 PM »
I have a few sheets of dynamat... I'll use quite a bit of it...
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

2savage4you

  • Karma: +14/-1
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #27 on: October 24, 2007, 01:16:54 PM »
I have a few sheets of dynamat... I'll use quite a bit of it...


Just enough to cover the inside of the box ;D any more is a waste.

Good luck cant wait to see it finished.

2sav
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

Marcsrollin

  • Karma: +33/-0
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #28 on: October 24, 2007, 01:45:03 PM »
Dynomat adds a lot of weight!
  • Boat #1: 1978 TX-19 Youngblood
  • Boat #2: 1994 24 foot Sundancer Pontoon
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party
Taco'd "a person or people that show up with one lake lice and a family of 50 and cram 3 people at a time on it with no disregard to boating rules or ethics. Usualy crap in toilets and throw shit paper in trash cans. Hang out at the boat ramp like its a swimming hole. Have zero insurance on anything they own and dont give two shits less about your property."

UNDONE

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #29 on: October 24, 2007, 02:17:39 PM »
It weighs 7 pounds as of right now. Speakers might be 10. Dynamat I'm figuring 1 sheet, maybe 1 1/2 sheets. So another lb. MDF is pretty strong especially when the load is going to be spread by 1/16" thick steel 4"x4" sheetmetal in 4 spots and all those 4"x4" plates have two sheets of glass over them. So the bolt and washer will actually have 3 layers of glass, 1/16" of steel, 3/4" MDF, and 1/2" of rubber between the 4 mounts and the steel tubing of the tower...
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

2savage4you

  • Karma: +14/-1
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #30 on: October 24, 2007, 04:17:32 PM »
Another thing to remember, MDF is a sponge when it finds water ;)


2sav
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

UNDONE

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #31 on: October 24, 2007, 05:03:11 PM »
Well it is already covered completely by resin. then wrapped by glass/resin. Then the bondo will help, not to mention the paint ultimately sealing the entire package.
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

2savage4you

  • Karma: +14/-1
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #32 on: October 24, 2007, 05:06:49 PM »
Sounds like you got it handled ;D


2sav
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

hotrod56cars

  • Karma: +1/-8
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #33 on: October 24, 2007, 07:48:46 PM »
Damn I fell like tooting my own horn in this thread and it crossed my mind that marcsrollin might toot my horn as well ( no pun intended ), but I've been doing this sh!t for way too long.

Keep the project going!

The 6 X 9's are full range right? Playing all of the "musical notes" right? It would be better if there was a divider between the left and right speakers, but I wouldn't ditch the current project due to a lack of a divider. The sound will be more "muddier" due to the lack of a divider. The left and right speakers will "fight each other" due to the lack of a divider. The "fighting" will shorten the life span of the speakers but not so much to ditch the project, negligable (sp?) at best.

Fiberglass is used for sound deadoning. Fiberglass is used for insulation (heat, sound, whatever, etc...). There is absolutely no reason to add Dynamat to any fiberglass enclosure. Ever. This is of course assuming that the enclosure itself is of sound design and thick enough to not flex under the power given to the speaker.

In mounting the speakers to the fiberglassed/resined MDF use the coursest (sp?) screw thread you can find. If the MDF happens to strip out, replacing the MDF will not be an option.

About 30 or 40 years ago speaker manufacturers would add fiberglass (similar to house insulation) to their speaker enclosures to get a increase of bass response. The more modern manner to do the same thing is to use synthetic pillow stuffing. Ironically, the sole reason the insulation worked in the first place, to improve bass response, was because the design of the enclosures was too small for the speakers.

Lastly, music has changed. Big time. When I'm writing about left and right speakers "fighting each other" most of the current music today is not as "stereo" as it was back in the day. My fav band, the original Van Halen, would have Eddie coming out of the right speaker, Alex and Michael Anothony coming out of the laft speaker, and David Lee Roth spitting out of both speakers, now that is stereo seperation. Not so much today. Also a lot of todays stereo seperation is purely for hmmm...  impact. You'll have a jammin' almost non-stereo seperated session go to silence and then the lead singer come in with lyrics and then have the recording immediately go into a non-stereo seperated recording.

A lot of this sh!t is theory. I will never forget the lesson I got in a "long port". But that's a long story, maybe another time.

Damn, I need a drink.  :P
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party
Quote
NO REGRET$ ... Arguing on the internet is like competing in the Special Olympics / no matter how good you do you're still retarded!!!!!

                                                          1978  19' Mach 1 Tunnel jet

hotrod56cars

  • Karma: +1/-8
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #34 on: October 24, 2007, 07:49:49 PM »
BTW - disclaimer - I am in no way writing that any other person's opinion on this topic is wrong or mis-guided.
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party
Quote
NO REGRET$ ... Arguing on the internet is like competing in the Special Olympics / no matter how good you do you're still retarded!!!!!

                                                          1978  19' Mach 1 Tunnel jet

Blue

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #35 on: October 24, 2007, 09:20:44 PM »
Stuff the box with polyfill (pillowstuffing) that will slow the air down and help the speakers not "fight" each other. It will also cure some resonance the box will naturally have. I agree with Rod no dynamat waist of $$$$.
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

UNDONE

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #36 on: October 25, 2007, 07:31:49 AM »
My buddy has a stereo shop. Got the 6x9's and two big boxes of dynamat ($200 each retail) all for $125...
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

Legal Chemistry

  • Karma: +2/-0
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #37 on: October 25, 2007, 12:07:44 PM »
thanks for sharing your work!  I thought about doing some fiberglass enclosures several time but never got off my arse to do so... maybe this will give me the kick for a winter project.  Pending on the amount of flex in your box, I'd skip the d-mat and use it for your car/truck instead.  Like the fore mentioned tar paper works and it is cheap -it does smell at first b/c of the well.. the TAR, but in a boat application that really wouldn't matter too much You can pick up polyfil pretty cheap at partsexpress or other online retailers.  Keep us posted...
« Last Edit: November 05, 2007, 11:02:00 AM by Legal Chemistry »
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

UNDONE

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #38 on: October 25, 2007, 12:31:06 PM »
Probably won't be working on it this weekend. However, this sucker does not flex.... My friend accidentally stepped on it last night and nothing budged. I watched it happen and nothing moved, flexed, or sank! I was really impressed. If anyone has a need for fiberglass fabric I have a HUGE roll.
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

Legal Chemistry

  • Karma: +2/-0
Re: Tower Speaker Fiberglass Box 6x9s
« Reply #39 on: November 05, 2007, 11:03:06 AM »
any updates?  I dig watching these projects develop... hopefully you stay strong and don't give up!
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

UNDONE

Re: Tower Speaker Fiberglass Box 6x9s
« Reply #40 on: November 05, 2007, 11:23:12 AM »
no progress... Been working saturdays and going to the lake on sundays... Now by the time I get off work it's already dark, so I don't feel like doing much...
  • Like
    Dislike
    Love
    HaHa
    Angry
    Surprise
    Sad
    Party

 


Null

SMFPacks CMS 1.0.3 © 2026