New User? Sign Up  |  Sign In  |  Help
Car Audio Help
Get your free
gift!!! Visit Apex Audio Now!
ask.
answer.
discover.
Search for questions :
My Profile

rgcaraudio

Open Question Bookmark and Share

8-OHM 15" PA speaker able to run off car-audio amp?

I have the amp listed in the kit at http://www.magnum-audio.com/ with 1000watts peak capacity. No clue exactly what resistance it does/can run at, though I am guessing 4 or 2 ohms (IE like every other car amp). I also have a 15" RadioShack PA speaker which, I swear, produces MUCH clearer deep bass and runs at 8-OHMs resistance. The Magnum subs seem to stress/distort far before the amp "flashes red" so I'm guessing the amp has power to spare. My question is...is there any way to, say, safely bridge the connection from the amp to the Magnum Audio subs to the 15" speaker then back to the amp or just straight from the amp to the RadioShack PA speaker without it damaging the speaker due to "expected resistance" conflicts? And, if so, what extra connectors will I need? Frankly I am rather embarrassed I spent about $350, parts + installation, on a car-audio system that gets beat by my $60 Radio-Shack PA speaker and $120-ish 100-watt RMS amp far as bass output... Additional info: I also have 2 12" PA speakers available either of which I can parallel wire to each other or the 15" for a 4-OHM resistance system, in case that helps make anything more safe.

Posted 832 days ago

    Report Abuse
   Find Intereseting  
   E-Mail to Friends  
   Bookmark  
   Subscribe to Answer Alert  
Answers (1)

lmcaraudio
Sorry this is SOOOO long, got on a rant ! I checked out the link to your "1000 peak watt amp." , from a little looking around and not finding much else on the co., I think you should be thinking more like 1000 peak @ 1-ohm stable!(figure 500-600 RMS constant)Of course, with a higher ohm load, you're cutting your power in half for every time you double the load, so- 1000 @ 1 ohm= 500 @ 2 ohm = 250 @ 4 ohm=125 @ 8 ohm. Still ought ta be enough to fry your p.a. speaker with the gain and volume full up,And, with the higher spkr. load, shut your amp down(shouldn't actually harm it, if it has protection circuit). Something the stereo "experts" at auto sound stores WON'T tell you is that every time you cut the load in half, you're pretty much DOUBLING the signal noise! Just"What, do you think you're putting this in a house?"* These same people tell me I really need to throw my YAMAHA system away and upgrade!-Until, that is, I turn my little dry deck, 7-band E.Q. feeding 2 150 watt, 8-ohm amps feeding 4 6X9's(More garbage!?!?-90% of the time, I hear "What's a Harmon/Kardan? I got some REAL speakers for you! {usually Sony X-plodes or similar!!}") and 2 measly little IMPP pioneer 10's(hooked up through sub-out of E.Q. up about 1/2 way! Then, my "upgrade" would cost upwards of $1500 (Not including the spare battery and isolater, and wiring to make the new system actually work!) before I get the same sound. L M F A O !The box in the picture looks way small for a pair of 12's, which COULD be the reason for early distortion. If it were mine, I would cut the amp. gain to around 40% and hook the p.a. spkr. up, alone, with a ground loop isolator, then watch things as I turned master volume up on the deck to just below distortion, and adjust input level of amp.

832 days ago

( 0 )
( 0 )
   Report Abuse

Email this question link to friends
You must enter email-address, if name is entered and vice-versa for each friend.
Friend #1 -
Friend #2 -
Friend #3 -
Friend #4 -
Friend #5 -
Enter Security Code : *
Get your free
gift!!! Visit Apex Audio Now!

 

Copyright 2009 © www.caraudiohelp.org