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Help: Am I Underpowering My Subs?
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<blockquote data-quote="Immortal" data-source="post: 4242460" data-attributes="member: 584048"><p>I've recently been going back over my system looking for things to upgrade and it just hit me that I think I am underpowering my subs.</p><p></p><p>I have 2 Rockford Fosgate 12's, the P34D12 series in a enclosure wired like the third image down in this wiring diagram:</p><p></p><p><a href="http://www.rockfordfosgate.com/products/product_details.asp?cat_id=4&amp;series_id=31&amp;family_id=11&amp;item_id=108289&amp;locale=en_US&amp;p_status=" target="_blank">http://www.rockfordfosgate.com/products/product_details.asp?cat_id=4&amp;series_id=31&amp;family_id=11&amp;item_id=108289&amp;locale=en_US&amp;p_status=</a></p><p></p><p>It shows that I am getting a 4 ohm load from my 2 subs. I believe this is called series parrallel (where you have both subs connected to eachother and only 1 neg/pos wire leaving the enclosure going to the amplifier)?</p><p></p><p>Well the monobloc sub I bought has the following specs:</p><p></p><p>P 1000.1</p><p></p><p>1000W 1-Channel A/B Class Mono Amplifier</p><p></p><p><strong>250W x 1-Ch @ 4-Ohms</strong> or</p><p></p><p>500W x 1-Ch @ 2-Ohms or</p><p></p><p>1000W x 1-Ch @ 1-Ohm</p><p></p><p>Its a Crunch amp, aka a cheapy stand in, I bought at the time because I was running low on money and I was told by the dealer that it would power my two subs for 500W. Well I think that is because he believed my subs were wired at 2 ohms and as the diagram shows, the model of Fosgates I have is the 4 ohm model and thusly cannot be wired to 2 ohms.</p><p></p><p>So am I only getting 250W to my subs when I need 500w?</p><p></p><p>Am I damaging my subs at all by underpowering them?</p><p></p><p>If I bought a new, more powerful amp that would push 500w @ 4 ohms would I then be fully powering my subs, and thusly be louder and more powerful?</p><p></p><p>Or could I right now go into my enclosure and rewire it to run at 1 ohms like in the diagram which would allow the amp to push 1000w to the subs. I suppose that would be overpowering it.</p><p></p><p>Would that increase its performance or would it just result in damage?</p><p></p><p>Finally I have a second 4-channel 100 watt amp that is powering my speakers right now. I am only using 2 of the 4 channels, is there some way I could send additional power from the output to the subs for a temporary fix without weakening the speakers' output?</p><p></p><p>I know I have a lot of questions but I like to learn before I spend money <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue :p" loading="lazy" data-shortname=":p" /></p><p></p><p>Thank you in advance.</p></blockquote><p></p>
[QUOTE="Immortal, post: 4242460, member: 584048"] I've recently been going back over my system looking for things to upgrade and it just hit me that I think I am underpowering my subs. I have 2 Rockford Fosgate 12's, the P34D12 series in a enclosure wired like the third image down in this wiring diagram: [URL="http://www.rockfordfosgate.com/products/product_details.asp?cat_id=4&series_id=31&family_id=11&item_id=108289&locale=en_US&p_status="]http://www.rockfordfosgate.com/products/product_details.asp?cat_id=4&series_id=31&family_id=11&item_id=108289&locale=en_US&p_status=[/URL] It shows that I am getting a 4 ohm load from my 2 subs. I believe this is called series parrallel (where you have both subs connected to eachother and only 1 neg/pos wire leaving the enclosure going to the amplifier)? Well the monobloc sub I bought has the following specs: P 1000.1 1000W 1-Channel A/B Class Mono Amplifier [B]250W x 1-Ch @ 4-Ohms[/B] or 500W x 1-Ch @ 2-Ohms or 1000W x 1-Ch @ 1-Ohm Its a Crunch amp, aka a cheapy stand in, I bought at the time because I was running low on money and I was told by the dealer that it would power my two subs for 500W. Well I think that is because he believed my subs were wired at 2 ohms and as the diagram shows, the model of Fosgates I have is the 4 ohm model and thusly cannot be wired to 2 ohms. So am I only getting 250W to my subs when I need 500w? Am I damaging my subs at all by underpowering them? If I bought a new, more powerful amp that would push 500w @ 4 ohms would I then be fully powering my subs, and thusly be louder and more powerful? Or could I right now go into my enclosure and rewire it to run at 1 ohms like in the diagram which would allow the amp to push 1000w to the subs. I suppose that would be overpowering it. Would that increase its performance or would it just result in damage? Finally I have a second 4-channel 100 watt amp that is powering my speakers right now. I am only using 2 of the 4 channels, is there some way I could send additional power from the output to the subs for a temporary fix without weakening the speakers' output? I know I have a lot of questions but I like to learn before I spend money :p Thank you in advance. [/QUOTE]
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