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new guy needs amp selection help
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<blockquote data-quote="nova" data-source="post: 304206" data-attributes="member: 549872"><p>Ok, I'm almost brand new to the car audio scene. About the only thing I have going for me is friends who know a little and a little electronics background.</p><p></p><p>I want some subs for my '94 Camaro and after listening to as many different subs as I could find in my area (arguably not all that many) I decided on 3 JL Audio 10W3V2 with dual 6 ohm voice coils which can handle 300W RMS each.</p><p></p><p>I plan on using a sealed box and wiring for a 4 ohm load.</p><p></p><p>Now, my real question is to the wattage of amp I need.</p><p></p><p>Do I just need an amp that can deliver 300W at 4 ohms or do I need an amp that can deliver 900W (300W/sub X 3 subs) at 4 ohms?</p><p></p><p>I know its probably a stupid newbie question but I've read everything I can get my hands on and can't find anything resembling an answer.</p><p></p><p>What little electronics knowledge I have says that I would need the 900W since voltage and current should be equal between equal resistance paths of a parallel circuit. Since the current would essentially be divided by 3 and Amps X Volts = Watts it seems like you would need 3X the wattage. Since I'm new to car audio I want to make sure I'm thinking in the right context though.</p><p></p><p>Also any advice on a good amp would be welcome.</p><p></p><p>Thanks in advance for any advice you could give.</p></blockquote><p></p>
[QUOTE="nova, post: 304206, member: 549872"] Ok, I'm almost brand new to the car audio scene. About the only thing I have going for me is friends who know a little and a little electronics background. I want some subs for my '94 Camaro and after listening to as many different subs as I could find in my area (arguably not all that many) I decided on 3 JL Audio 10W3V2 with dual 6 ohm voice coils which can handle 300W RMS each. I plan on using a sealed box and wiring for a 4 ohm load. Now, my real question is to the wattage of amp I need. Do I just need an amp that can deliver 300W at 4 ohms or do I need an amp that can deliver 900W (300W/sub X 3 subs) at 4 ohms? I know its probably a stupid newbie question but I've read everything I can get my hands on and can't find anything resembling an answer. What little electronics knowledge I have says that I would need the 900W since voltage and current should be equal between equal resistance paths of a parallel circuit. Since the current would essentially be divided by 3 and Amps X Volts = Watts it seems like you would need 3X the wattage. Since I'm new to car audio I want to make sure I'm thinking in the right context though. Also any advice on a good amp would be welcome. Thanks in advance for any advice you could give. [/QUOTE]
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