Thank you wip99gt,
you are awesome for the reply. OK the 15" is an Electro-voice I build the box a few years ago with an sub woofer amp I bought on ebay in the cabinet this amp was crap and the whole thing now sits in the garage and has for a few years now. So I'll have to dig the thing out and remove the cheap amp I put in it. I was going to plug up the spot where the amp was with the same wood I used to build the cab. I went to local pro audio shop and the guy helped me with the porting for this cab a 4" and I had to cut the depth for his measurements as to cabinet size and speaker out put. Anyway I can get more specific in a day or so. the speaker was from a PA system that I got at an auction I pulled it from a speaker system that the cabinet was trashed and full of rat droppings yuck.
As for high end I have many things to pick from a while back I got a wild hair and got a bunch of Altec 409T 8" Coaxial Speakers some with transformers. These were used as ceiling speakers back in the day nowadays the tube freaks like em as I guess the out put has a flat output.
I can put 4 them towards this project. I also have two large shure styled speakers with about 6X 8" speakers in them I got them with an old 20 watt power amp and it didn't get very loud. Tried to use for vocal system at a big band I play in didn't work for that. so... also I have some horns from the speaker system that pulled all the components from. However some might be blown as were the 8 Black widow 15"s I got from that action. OK now I am going on and on. I have a lot of stuff I will put a list together with as much info as I can get. I do like vintage however this is probably not the right project as I have heard the newer speakers run better on a battery system as they are more efficient.
Trying to do this for little cash as I am not sure the thing will work on the street for me. For one the weather is going to get cold up here Portland Oregon. and if it really good and loud I just might get it confiscated by the cops even though I have the free speech going for us. I read about bucking and the courts. If I am good it this I just might get a gig in doors with AC then I can use my Mackies (450's)with sub.
I am sorry I went on and on here thank you for reading this mess. I'll open my sub and get the info requested.
Thank you again
Edd
wip99gt :
A 15" 8ohm? Not that common for car audio but not a problem. What is the wattage needed to run the subwoofer? In your case I'd look for a good 4 channel amp and run the the sub off of the rear channel and the mids and tweets off of the front channel. How do you plan on sending the audio to the amp? How many speakers do you plan on running? A proper cart like that for playing sax music would do well with 2 quality 6" speakers with your fifteen to cover the lows. With your subwoofer you gotta go with a sealed box.
If you tell me the specs and make of the speakers and your budget I can recommend a quality amp, wire sizes, how to wire it, and the boxes to make. For an application like this I would make boxes for all the speakers.
Also just so you know the guy was full of BS about 8ohms not working. I think he doesn't understand amplifiers that well because they usually don't put 8ohm ratings on amps. 4ohm speakers will obviously reduce resistance so the amp can push more power and run more efficiently but other than that there's no problem with it. Any amp can handle 8ohms it's dropping down to 2 or less ohms that some amps can't handle.