hpf and lpf, which setting?

hey stev,

if you take a look at the amp control pic again,no.4,which is the highpass filter control.

where the arrow points to 7pm(think of  a clock) the setting there is 10hz.if i twist the knob fully,it finishes up at 5pm,the setting there is 400hz.what im trying to figure out,is where would 80hz be on that "clock"? 9pm?

im guessing the "noon" or 12 o clock would be 200hz,would i be correct seeing as the half way point would equal half the maximum hz of 400?

as for the subs and channels 5/6.

no.11 is highpass filter control and is exactly the same as no.4 with its settings and hz range.however,the lowpass filter control, no.12 starts at 40hz(7pm) and finishes at 400hz(5pm).

i know its impossible for you to tell me which direction to point these arrows without actually listening to the thing playing,but hypothetically,given the hz range of my speakers,what would you reccomend?and i do not turn my headunits hpf or lpf on,i let the amp do it? 

i wish some manufacturer would create an amp where it asks you what speakers your using and to input its db range,its frequency,power handling and suggest a setting or automatically make it for you.way handier.

never thought upgrading my audio system would be so technical!!

yup,as you can tell,im confused.but its all a learning curve anyways.thanks for putting up with me.i would have given up long ago.cheers,

dave.

You can't know by judging relative positioning of a screw.  That's one reason, as I said, for the test tones.  The other reason is for gain setting.  The program I linked to is the one I use, or you can visit a local shop and purchase one.  With a test tone CD, you will be listening -not looking - for the crossover point.

Here's where to start:  sub range - lowest possible freq up to 80 Hz.  Mains - 80 Hz up to highest possible freq.  Everything i said in the previous post holds true so make your notes from it to know which crossover settings to use.  Make the test tones, record your CD (or buy a professionally made one), set the crossovers and gains....and start enjoying.

 Search for test under topics and find more threads on the subject.  You'll find more details on how to narrow down the crossover to the target freq, which in this case is 80 Hz.  And yes, allow full range from the head unit to everything.  And you can search as well for gain.

This is why we have professional audio experts providing a service to people who need their audio systems set up.  Visit a local shop and pay the small fee...get it done.  But you have all the info you need to do it yourself if you'll just digest it, make your notes, and do what you have to do.

hi stev,

fair play to you.thanks alot for your knowledge.i should have the thing set up fairly well by the looks of it.

once again,thanks,

dave.