What do I need to do here?

[Konstantin 10+ year member]

I got my system nearly complete, and it consists of a pair or Rainbow Germaniums powered by a Diamond Audio D7 152 amp. Got a pair of old small subs that will be gone this weekend (hopefully) and a Kenwood Excelon x890 HU.

I want to set my frontstage as well as possible, but I am overwhelmed by all the options I have. The speakers crossover, the amp has crossovers/freq knobs and the HU has lpf/hpf and stuff.

So far I've turned all EQ stuff to 0, loud off, etc. and it sounds nice. But I am still not sure what to do with the lpf/hpf settings. I have the low pass filter set to 80hz, and the high pass filter set to 80hz as well using the HU.

How does this affect the amps? Since they have their own freq controls. The D7152 has the xover turned off I think, and my other amp for the subs is a MXA4001. Should I be setting the hpf at the amp as well? Should I turn it all the way up and then have the HU process it?

What am I supposed to do? Thanks for the input.

Click to read more...

 

[mile098 10+ year member]

the settings depend on the equipment u have....if ure using kickpanels i suggest going fullrange on the front system or 50Hz cutoff, if theyre mounted in the door cut off at 60+hz...they'll be able to take more power that way and wont max out....leave it at 0 db/otc(my stage with an alpine 9855 and phase evolutin cfs front system seems much broader that way...as for the +- db difference that depends on your liking as well as the bass output

 

[XanderMoser 10+ year member]

Are you using the passive crossovers for the speakers?

If so, all you need to worry about is high passing (letting frequencies higher than the crossover frequency pass) the component set as a whole and low passing (letting frequencies lower than the crossover frequency pass) the subwoofer.

I assume you are running one RCA pair to the amps for the component set, and one RCA pair to the sub amp?

If so, then you can use the HU to set your crossovers. If you do this, then set the highpass frequency on your component amp as low as possible and set your lowpass frequency on the sub amp as high as possible.

Now set the subwoofer lowpass frequency on the HU to about 60-80 hz, wherever you think sounds best. Adjust the slope to what you think sounds best as well.

Now set the component set highpass frequency on the HU to about 60-80 hz, wherever you think sounds best, and also play with the slope here. I would suggest not going below 12 db/oct, especially at lower highpass frequencies.

Make sure to play with the phase adjustment on the sub if you have that ability. You'll find you can gain a few DB of apparent output by adjusting the phase.

If you have any more specific questions, just ask

 

[Konstantin 10+ year member]

I'll have time tommorow to tune //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I have another question tho, the D7152 has a button to turn on the xover, and it has a lpf and a hpf know. Do I turn it on and set the lpf as high as possible and the hpf as low as possible, or just leave it off?