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Discussion Starter #1
I'm a car audio newb as the title suggests. Never had a system in any of my cars but, I want to upgrade the audiophile so, I bought this subwoofer: Infinity Reference 1042w
10" subwoofer with dual 4-ohm voice coils off of e-bay and now don't know what amp to get... What would you recommend?
 

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their are many good amps out go to crutchfield.com to get feel of what they are. stay away from things that are cheap. you will notice that some companies are more cheap than others and offer the same specs stay away form those. the one thing i have learned is you get what you pay for in the audio world. try to find a mono or 2 channel amp that rms power meets the sub rms power.
 

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Subs don't push power; amps provide the power. The sub's ohm load on the amp determines how much the amp provides.

With a dual 4 ohm sub, you'll wire the voice coils in Parallel for a final 2 ohm load. So you'll likely need a mono Class D amp that provides around the right amount of RMS power the sub is rated to handle.

For example: Zed Audio Minilith is $241, built like a tank, sold direct only, high-quality, and provides actual 450w RMS at 2 ohms. http://www.zedaudio.com/products.html

Alpine MRD-M605 for up to 600w at 2 ohms for $225 at:
http://www.ikesound.com/product-product_id/3003

Having more power is ok, just keep the gain turned down. It'll run cooler and be stronger on dynamic music. It also allows you to upgrade your sub later on.

Wiring diagrams and tutorials:
http://mobile.jlaudio.com/support_pages.php?page_id=141
 

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Discussion Starter #7
The sub is 250w RMS...

So, FocusInCall, you're saying it would be ok to get say a mono amp that's like 450w RMS just keep the gain turned down and then when I have the money upgrade to a higher wattage sub?
 

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yup, no problem

you might even be happy with the current sub, but at least you'll have the option of upgrading, and the amp will run cooler and with less possible distortion
 

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if you are looking for a cheaper amp, i personally am a fan of profile amps. they are good bang for the buck and have pretty good sound imho. granted a jl or alpine amp would sound some better...... but i hate to dish out that kind of cash so i looked up everything i wanted and put the part numbers into ebay. got my system for about half price, except for the deck i bought from crutchfield with free mount kit, harness and free shipping (all that cheaper than the shops in town wanted.)
 

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yeah, Profile is hit or miss, definitely what you pay for. Some get lucky though. Hopefully your amp will last. If not, no biggie. At least you'll get your money's worth. [:D]

The only amp direct from Profile that does 2 ohm mono is the 400MSX for a whopping $50 direct from Profile, http://www.profilecaraudio.com/amplifiers.htm It is rated 300w RMS at 2 ohms.

One of these days I'm gonna have to design a fully active super cheap budget system and see how good I can get it to sound. Time alignment would be needed, so perhaps:

$150 Alpine CDA-9813 on eBay
$40 Profile 200SX for tweeters at 60w/ch
$65 Profile CA600 for mids at 150w/ch
$65 Profile CA600 for sub at 450w
$65 Dayton Reference RS180-4 mids from PartsExpress.com
$60 Vifa D26NC55 tweeters from Madisound.com
$135 Elemental Designs 16Kv.2 sub in 1.5cft sealed box
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$580 plus wires, box, etc.

Now there's a budget sytem! [:D]

Sorry I got off track, but that was fun. That system would amaze you at how good it would sound, especially for the price. It'd be interesting to do a direct A/B comparison with the amps to hear the sonic differences compared to my clean Arc amp.
 
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