Coleslaw Posted April 14, 2011 Report Share Posted April 14, 2011 (edited) Alright, I have been wondering for a while, on a lot of mono block amps there is two speaker outputs. How does this work? For example, if I plugged a 4 ohm speaker into each one would that present a 2 ohm load to the amp? Also, if I want to use just one speaker, do I just plug it into one or the other? Or connect it in what would be a bridged format on a multi channel amp? Or does it not matter? I know this is probably a dumb question but since I have never used a mono block with 2 outputs I don't understand how it works. Also, off topic, would it be louder to run 1 sub at 1000 rms or 2 at 500 each (same sub either way)? Edited April 14, 2011 by Coleslaw Quote Link to comment Share on other sites More sharing options...
C.Sanchez.A Posted April 14, 2011 Report Share Posted April 14, 2011 I am not to sure about the amp but, off topic I would say 1 sub at full power compaired to 2 at half. Quote Click Links To View Build Logs 1994 - Mazda B3000 (Daily/Toy/Show) 2002 - Mazda Protege (Daily) 1995 - Hyundai Accent (R.I.P.) 1984 - Bronco II (Restoration Project) Youtube Channel Link to comment Share on other sites More sharing options...
Hotdog Posted April 14, 2011 Report Share Posted April 14, 2011 (edited) if I plugged a 4 ohm speaker into each one would that present a 2 ohm load to the amp? Yes - They are to make it easier to wire. if I want to use just one speaker, do I just plug it into one or the other? Yes Also, off topic, would it be louder to run 1 sub at 1000 rms or 2 at 500 each (same sub either way)? Should be the same or close Edited April 14, 2011 by Hotdog Quote (NEW) 2004 F-150 Build Log -->http://www.stevemeadedesigns.com/board/topic/192208-hotdogs-f-150-build-log/ 2003 Mercury Mountaineer Build Log --> http://www.stevemeadedesigns.com/board/topic/114380-hotdogs-2003-mountaineer-build-log-20-removed/page__gopid__1602379#entry1602379 2008 Equinox Build Log --> http://www.stevemead...g/#entry1475764 Link to comment Share on other sites More sharing options...
TheyDontWantMusic Posted April 14, 2011 Report Share Posted April 14, 2011 two subs at half the power should be 3db louder than 1 sub. Quote Link to comment Share on other sites More sharing options...
Coleslaw Posted April 14, 2011 Author Report Share Posted April 14, 2011 if I plugged a 4 ohm speaker into each one would that present a 2 ohm load to the amp? Yes - They are to make it easier to wire. if I want to use just one speaker, do I just plug it into one or the other? Yes Also, off topic, would it be louder to run 1 sub at 1000 rms or 2 at 500 each (same sub either way)? Should be the same or close Sweet, thanks for the info two subs at half the power should be 3db louder than 1 sub. Hmmm... Idk if it is worth it then for just a temp summer build. Quote Link to comment Share on other sites More sharing options...
TheyDontWantMusic Posted April 14, 2011 Report Share Posted April 14, 2011 double the cone area is +3dB, double the power is +3dB, or double the cone area and power for +6dB in theory of course, it be slightly lower in a car. Quote Link to comment Share on other sites More sharing options...
Coleslaw Posted April 14, 2011 Author Report Share Posted April 14, 2011 double the cone area is +3dB, double the power is +3dB, or double the cone area and power for +6dB in theory of course, it be slightly lower in a car. Do you think I should spend another $200 or so and get another sub and make a new box or just go with the one I have and already have a box for at full power? Quote Link to comment Share on other sites More sharing options...
cgrez33 Posted April 14, 2011 Report Share Posted April 14, 2011 (edited) double the cone area is +3dB, double the power is +3dB, or double the cone area and power for +6dB in theory of course, it be slightly lower in a car. DBL POST FAiL Edited April 14, 2011 by cgrez33 Quote Current Build: 1999 Tahoe #ComingSoon Previous Build(s): Crossfire Magnum 5k Pontiac G6 GT Link to comment Share on other sites More sharing options...
TheyDontWantMusic Posted April 14, 2011 Report Share Posted April 14, 2011 double the cone area is +3dB, double the power is +3dB, or double the cone area and power for +6dB in theory of course, it be slightly lower in a car. Do you think I should spend another $200 or so and get another sub and make a new box or just go with the one I have and already have a box for at full power? thing is, that two subs won't be getting half the power each as a single sub if they're all the same impedance. I mean... either you're currently not running the amplifier at its lowest rated impedance, and when running two subs you'll be able to run them in parallel. or with two subs you'd have to run them in series... what amp and subs? Quote Link to comment Share on other sites More sharing options...
cgrez33 Posted April 14, 2011 Report Share Posted April 14, 2011 double the cone area is +3dB, double the power is +3dB, or double the cone area and power for +6dB in theory of course, it be slightly lower in a car. That is true, but IMO it's better to fix flaws within the vehicle. Such as deaden, seal, fiberglass, polyfill, etc. Then add subs and powah. Quote Current Build: 1999 Tahoe #ComingSoon Previous Build(s): Crossfire Magnum 5k Pontiac G6 GT Link to comment Share on other sites More sharing options...
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