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Recommend a newb some speakers!

Old 04-09-2007, 06:20 PM
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Recommend a newb some speakers!

Hey guys,

I'm a total newb so I need some advice.

I just purschased a 500w lightning audio wiring kit.

And I'm about to aquire this amp: http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=17109

Anyways, I'm really confused. I was just planning to buy this amp, install it and use it to power the 4 speakers since it's a 4 chanell (makes sense right?). But on rockford's site it says "The T400-4 amplifier is perfect for front/rear fading stereo systems or when dedicated amplification is required between front stage speakers and rear subwoofer(s).". What does this mean? front/rear fading?

Please clear up if this is an appropriate amp to use on 4 speakers.

Also, for the specs it says:
Rated Power: 25 W x 4 @ 4 Ohms RMS
Rated Power: 50 W x 4 @ 2 Ohms RMS
Rated Power: 100W x 4 @ 1 Ohm RMS

This confuses me. As far as I understand the x4 means it's using all 4 chanells (not bridge or anything) each chanell going to the 4 speakers. And I'm not sure what ohms mean here... I know they mean resistance, but can someone explain what it's telling me in this context?

Anyways, once I figure this out I will need speakers. I need to look at something that handles the same or maybe a tad less RMS that my amp is rated for, right? Because overpowering them and underpowring them a lot blown them?

So, which speakers would you recommend for my amp? I obviously want something decent but nothing like hardcore top of the line. If there is anything that is considered good "bang for the buck" that is what I want

BTW I will need 4 6.5s.

Thanks!
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Old 04-09-2007, 06:26 PM
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fading is turning down the front/rear speakers
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Old 04-09-2007, 07:08 PM
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So what is it exactly about this amp that make it perfect for fading as opposed to just using it normally.
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Old 04-09-2007, 07:41 PM
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any stereo amp is good for fading. the only amps that cant fade are mono amps.

by fade they mean left to right and front to back. monos can only go loud to quiet if you get my drift.
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Old 04-09-2007, 07:52 PM
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Originally Posted by BlitzSix
Also, for the specs it says:
Rated Power: 25 W x 4 @ 4 Ohms RMS
Rated Power: 50 W x 4 @ 2 Ohms RMS
Rated Power: 100W x 4 @ 1 Ohm RMS

This confuses me. As far as I understand the x4 means it's using all 4 chanells (not bridge or anything) each chanell going to the 4 speakers. And I'm not sure what ohms mean here... I know they mean resistance, but can someone explain what it's telling me in this context?
if your 4 speakers are rated 4 ohms each, the amp will deliver 25 watts per channel to the speakers, if you have 4 speakers rated 2 ohms each, the amp will deliver 50 watts per channel and so on.

If you have 2 speakers at 4 ohms and 2 speakers at 2 ohms then 2 x 25 watts to the 4 ohm set and 2 x 50 watts to the 2 ohm set.

Hope that explains it for ya.
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Old 04-09-2007, 08:03 PM
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The lower the impedance (ohms), the higher the power output from the amplifier. Check to see what your speakers are rated. Depending on the impedance of your speakers, the output from your amplifier will change. Make sure you don't hook up your speakers to an impedance setting below what the amp supports. If you don't understand how to calculate impedance or anything else about car audio, check this forum and go to http://www.bcae1.com

Its a good site for beginners.
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Old 04-10-2007, 09:21 AM
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Polk audio make very good speakers that will fit your budget.
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