Help with Stereo setup.
11-05-2010, 11:05 AM
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Help with Stereo setup. Im going to be redoing my sound system as I go alone with my interior. right now I have an Alpine head unit (unsure of model) but will be replacing it with with a newer Alpine HU probably the CDA-9887. For the doors I im going to go with the Alpine SPR-17S Component 6.5, For the sail panels probably the SPR-17C TypeR components. Now this is were I need help on the amp partfor the speakers, do I should i get an amp to power all for or just the two fronts? Im looking for a nice crisp sounding sound, Nothing over the top loud. Another thing is subwoofers, I was thinking a single Type R 15" powered by a MRP-M1000. The sub come in 2ohm or 4ohm, whats the diffrence?
11-05-2010, 11:49 AM
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May I ask why you want components in the sail panels? Having highs or even mids from behind you is unnecessary, and really will throw off your sound quality. Personally, you could get away with a new set of components up front, and a sub in the rear. In that case, all you'd really need is a single amp to power both the sub and front speakers.
11-05-2010, 11:55 AM
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A dual 4-ohm sub can be wired by itself at 2-ohms or 8-ohms. 2-ohms has less resistance against the amp, so it would basically be powered more and be louder. A dual 2-ohm sub can be wired at 1-ohm or 4-ohms, so if you have an amp that can run 1-ohm stable (the Alpine MRP-M1000 can not) then the sub would be louder still than a sub wired at 2-ohms (less resistance to the amp).
The reason people buy the dual 2-ohm subs is if they are running multiple subs. If say you are running 2 dual 2-ohm subs, you can wire them 3 different ways, paralell, series/parallel, or series, which would end up being 0.5-ohms, 2-ohms, and 8-ohms of resistance respectively. Therefore, you could run 2 subs on 2-ohms together, instead of buying 2 dual 4-ohms and wiring seperately to get 2-ohm of resistance.
Since you're going to be running 1 Type R 15, you would want to get the Dual 4 version, so you could wire it at 2-ohms and get the full power from you're amp to your sub so it can really pound
The reason people buy the dual 2-ohm subs is if they are running multiple subs. If say you are running 2 dual 2-ohm subs, you can wire them 3 different ways, paralell, series/parallel, or series, which would end up being 0.5-ohms, 2-ohms, and 8-ohms of resistance respectively. Therefore, you could run 2 subs on 2-ohms together, instead of buying 2 dual 4-ohms and wiring seperately to get 2-ohm of resistance.
Since you're going to be running 1 Type R 15, you would want to get the Dual 4 version, so you could wire it at 2-ohms and get the full power from you're amp to your sub so it can really pound
