Help Making an Extenstion speaker!!!

[Schecter006Elite]

Hey, I bought an extension speaker form my friend for $10 cuz he needed to get rid of it. the speaker is just as big as the speaker in my Marshall MG100DFX amp, so I can easily unplug the 1/4 cable form the back of my amp that runs to my speaker and plug the amp into the extra speaker i got. only prob. is i cant figure out a way to get my amp speaker and the extra speaker to be used at the same time. So i want to order like 1 or 2 componant speakers and build boxes for them to hook them all up that way i can play torugh a bunch and not just one. The extra speaker has a line in and out, so if i could make 1 or 2 more like this one i would be set. My buddy said that if you build a box, it has to be built to a certain equation to the speaker you are using for the speaker to function correctly because the amount of air in the box affects the speaker performance and durabilty. is this true. if so can someone give me directions or tell me what the equation is. I saw the thread on y2stevo's how to build a cab, but i dont want to build a whole cab, just 1 or 2 extra extention speakers. I am pretty sure the one i have now is a Maxx. i am pretty sure it was from a PA. HELP SOMEONE PLEASE!!!! :smack:

 

[jeremy]

Re: Help Making an Extenstion speaker!!!

if you are building a box that the speakers are going in, thats a cab. why are you doing this? more volume or ???

 

[Schecter006Elite]

Re: Help Making an Extenstion speaker!!!

Yes I am building an enclousure. A Cab usually has more than 1 speaker in it, but i dont know what defines cab. I only want one speaker in each (i think). I am doing this so i can have many speakers hook up to my amp so i can have many speakers instead of one. It, of course, will be louder because of this. I am pretty sure I explained everything in there. The amp will basically become a head unit.

 

[MikeS]

Re: Help Making an Extenstion speaker!!!

1) Design carefully. Improperly matching the load to the rated load of the output transformer can easily fry an amplifier. What are the ohm ratings of all the speakers you are planning on using?

2) Does the amplifer have a 1/4" powered line out, or a simple signal line out (and I'm not talking about a headphone jack)?

3) More speakers does not mean more audible volume. If you add speakers without increasing power, you do little more than reduce speaker distortion given that the power to each driver is reduced. 2 speakers at 25 watts each vs. 1 speaker at 50 watts each, for instance, reduces speaker distortion, but won't be any louder.

 

[Schecter006Elite]

Re: Help Making an Extenstion speaker!!!

I am lot really trying to get "louder" per say, just get teh same volume form multiple speakers. Yes my amp has a line out. It does also has a headphone out but that one id different. My amp also has a swith to make it either 4 or 8 ohm, so i am going with 8 because that is what the other speaker i already have is rated at. I will proabably order the same speaker from marshall that is in my amp already. Its a Celestion 1x12. I read A LOT of stuff on howstuffworks.com on speakers and enclosures and I am pretty sure I can do it. I already had basic knowledge of how speakers worked, i just didnt know if the casing had to be special.

(p.s. Would it be the same if i just bought a cabinet instead of making a bunch of small extension speakers? I mean, isn't that what a cab is? Just a hge extension speaker???)

 

[Cory_Dylan]

Re: Help Making an Extenstion speaker!!!

The speaker you want to build a cab for is out of a PA? There is a difference between instrument speakers and Hi-fi speakers. PAs use hi-fi speakers. All they do is reproduce sound. Instrument speakers have their own voice and will effect your tone.

I don't know, it all sounds like a bad idea to me (using a hi-fi speaker for a guitar amp speaker). But if you want to build a cab for the celestion speaker, it's not that hard. I built a really solid cab to house the speaker from my Classic 30 to save tube life and stop all the rattling. It's pretty much common sense... if you know basic math and can work a circular saw and a jigsaw you can build a speaker cab. Just build a box with an 11 inch hole in it.

Good luck

 

[Schecter006Elite]

Re: Help Making an Extenstion speaker!!!

Yea, thats all I was thinking it was, but i wanted to make sure. Well I guess the hunt is ovr. I just need to find where i can get all the supplies i need. Thanks for all your input guys.

 

[MikeS]

Re: Help Making an Extenstion speaker!!!

I think you're missing something with load calculations. If your existing speaker is rated at 8 ohms, and the new speaker is rated at 8 ohms, then your possibilities are either 4 ohms or 16 ohms. You cannot get a total 8 ohm load from two 8 ohm drivers.