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inky
03-22-2009, 12:54 PM
Hey guys I have ? About my amp setting , I have one 12 inch kicker cvr sub and a 800 watt amp that's bridged .my amp stting are at halfway on the bass so were should the crossover be set at .it says 40 hz on one side an 240 hz on the other , I can't really tell any difference can anyone help ?




ChargeRonDavinS
03-22-2009, 01:13 PM
Hey guys I have ? About my amp setting , I have one 12 inch kicker cvr sub and a 800 watt amp that's bridged .my amp stting are at halfway on the bass so were should the crossover be set at .it says 40 hz on one side an 240 hz on the other , I can't really tell any difference can anyone help ?

Ok most amps have several adjustments: Gain, Bass Boost, HPF (high pass filter) LPF (low pass filter), Subsonic filter, and the cross over (X over),

GAIN: how much bass it's putting out, but keep in mind for the most part when turned all the way up it's the same volume, the gain will make bass that isn't "as loud" louder, also adds to distortion the more it's up

Bass Boost: pretty much distortion, similar to gain but gain amps "quieter" bass less, bass boost will make songs that don't "bang" louder, and songs that do "bang" distort more, if you get what I'm saying.

HPF: High Pass Filter (High frequencies that you want filtered out.) You should have it turned all the way up on most amps, unless using this for a door speaker amp.

LPF: Low Pass Filter. For 12's, you probably don't want to let REALLY low notes go to your woofers, as it will over-work them and shorten their lifespan. You can also adjust which frequency of bass is loudest. For 12's, and most amps, I'd turn it 2/3 the way to the LOWEST frequency. (cut out some of the really low frequencies, but still sound good on many "low" songs.) Depends on what your subs can handle. When they "bottom out", you need to cut out deeper bass, turn the LPF higher.

Bottoming Out: For a novice description, it's when your subs stop producing much sound at all, but are still moving and flexing a lot.

Subsonic filter: Basically cuts out bass that our ears cannot hear anyway, which makes your speakers and amp more efficient. I turn mine 1/2-2/3 the way up... took me awhile to figure out what this was.

Cross Over (X over): Basically you have FULL, and SUB settings. Full is for door speakers (this is basically a much stronger LPF and HPF setting all in one). You want SUB or LOW there's many different settings on different amps, depending on quality and brand. You don't want mids and highs coming through your subs.

Hope this helps!

I doubt your sub can hit 40hz efficiently, I'd set it at 80hz. That's just me. Will also extend the life of your sub (lower frequencies take more power and flex the sub more)

inky
03-22-2009, 04:18 PM
So if the bass is a lil past half I should set the crossover to about 80hz ?sorry im pretty lame wen it comes to audio ...

ChargeRonDavinS
03-22-2009, 04:57 PM
So if the bass is a lil past half I should set the crossover to about 80hz ?sorry im pretty lame wen it comes to audio ...

crossover and bass boost have nothing to do with eachother. 80hz sounds good for cross over, bass depends on how you want it to sound. A lil past half sounds reasonable. If it's too quiet, turn it up a bit, mess around with it.

727ChargerKid
03-22-2009, 05:04 PM
80 Hz is fine for the x-over...you can turn the gain up a bit but be careful when you do...thats how ppl mess stuff up they go crazy with the gains and start clipping their siht...do you have any more settings on the amp?

LRBaLLa00
03-23-2009, 12:12 PM
Check this out... http://www.350z-tech.com/zwiki/Tutorial:Amplifier_Tuning