matching amp to sub

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GreatDane92
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I recently bought a 10inch infinity reference that can take 100-275W RMS http://www.crutchfield.com/S-8hNO8wMcl1 ... 1062w.html and 1100 peak, and i need an amp and found an infinity reference amp that puts out 312W RMS and about 350w max. http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... K:MEWAX:IT. does this look like a good match for a single 10inch sub or should i get more or less RMS? looking to do this on a modest budget so $150+ amps are out lol... I think this is a good match butjust wanna be sure..


gameguru1360
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that looks like a good match. For an infinity reference sub, I'd probably not want to feed it too much power over the rms rating. They're built for sound quality, not SPL so if you feed it like 300+ more power, I'd be careful how you set your amp gains, but that amp you listed looks to be a good pairing.

As a general rule, always look at the rms or continuous power rating, never peak. Peak is just a brief estimate of how much a speaker or sub can handle at a short, quick time. Rms or continuous ratings are the ones you want to look for as those are more accurate. Some salesmen will try to sell you on the peak ratings and it has to make you question....why is this pair of speakers only $50 yet they can handle 1000 watts of power! It's the peak rating!

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DJ_B_Easy
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NOT a good match in my opinion. Thats a 4 ohm sub. That amp is only rated at 116W at 4 ohms. Where you see 312W RMS is at 2 ohms. You will not be using the amp to its full potential and in turn not getting the most out of your subwoofer either.

Try and find an amp rated around 300-400 watts at 4 ohms. This way you can half your gains, keep your audio signal clear, and still use the amp and sub to its full potential.

GreatDane92
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ah ok, ty both. thanks beasy, i had originally wawnted a 12 inch which was 2 or 8 ohm so i guess thats what i was looking at but forgot that the 10inch is a 4 ohm. thanks, ill keep ereone updated on it..

GreatDane92
Posts: 167
Joined: Sat Jun 26, 2010 5:41 am
Car: 09 Altima Coupe - 2.5 6Spd CVT - Super Black

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GreatDane92
Posts: 167
Joined: Sat Jun 26, 2010 5:41 am
Car: 09 Altima Coupe - 2.5 6Spd CVT - Super Black

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DJ_B_Easy
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Honestly bro, I would not purchase any of those. First off I would never buy a used amp. Second those specific models and brands arent exactly what you would call quality.

Let me do some digging and Ill try and find something for you. What is your price range?

GreatDane92
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aiyt thanks bro.. my price range is probably like 120 max.. was trying to do it on a bit of a budget if it can be done.. if i need to spend extra i might or i might end up waiting til i got cash out the a** lol but hopefully not too much..

GreatDane92
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but if i need a specific amp to make it good and really should then id still like to know what you think i should do and id prolly go that way

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DJ_B_Easy
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Check these out. You can always take the model numbers and plug them into eBay as well. Just make sure the model on eBay is the most current production model. Honestly you are on a slim margin. For that fact alone Id go with the Sony that includes your wiring. Sounds like price is paramount over quality and in that case you want the most for product for your money.

http://www.sonicelectronix.com/item_117 ... 8104D.html
http://www.sonicelectronix.com/item_306 ... L300D.html
http://www.sonicelectronix.com/item_860 ... XM-1S.html
http://www.sonicelectronix.com/item_298 ... r-Kit.html This one has an amp kit included!

GreatDane92
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ok... would a rockford-R500-1 be a good fit? its listed for 133 Shipped on Ebay and ive heard rockford is pretty good... what do you think?

http://cgi.ebay.com/Rockford-Fosgate-R5 ... 230ec3f580

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DJ_B_Easy
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Honestly buy the Sony with cables. Same price as that rockford and I bet your shop will charge over $100 for cables.

GreatDane92
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only problem with the sony is that its out of stock lol

GreatDane92
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If i did go with one that didnt have all the cables with it, do any of these look like good cable kits? that way i wouldnt have to worry about the shop charging me for cables or anything cuz these are all only likew 20-25$ but look fairly complete.. thoughts?

http://cgi.ebay.com/2100-WATT-AMP-KIT-4 ... 563c935475
http://cgi.ebay.com/4AWG-4-G-GAUGE-AWG- ... 2eb27564b6
http://cgi.ebay.com/4-GAUGE-QUANTUM-AUD ... 43a616c597

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DJ_B_Easy
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Yup those should all do just fine for your application.

GreatDane92
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okay awesome, thanks for all the help beasy. hopefully my sub and box should be here early next week and then i can start making ddecisions on amps. thanks again and ill keep ereone updated


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