any tips on how to set the xover settings for a sub?

100 to 120 hz is a good place to start. turn on your radio and listen. adjust (lower) the cut off as desired.

usually, matigas ang bayo at this frequency but as you lower it, you will notice na unti-unti siyang lumalambot and gumagapang.

when  you come to a frequency you like, drive around to see if you still like it with all the noise (going on). this simulates the driving condition you will find yourself in most of the time.

adjust again as needed. trust your ears.

Quote from: totsss on July 15, 2004, 06:18:31 PM
any tips on how to set the xover settings for a sub?

use your EAR  

just dont tune it to around 50Hz as you might try to push the sub hard to get the "punch", try using 70-80Hz. And if it is adjustable, set the slope to around 24dB/octave. But if you want thick fat bass, try 120Hz.

my suggestions naman...
first, determine what music type you prefer or your music inclination, in other words
having your music inclination classified into either SQ, SQL or SPL will evidently define the type of bass you want emmulated in your system

if your the SQ type, the bass in SQ set-ups are discreet but full and precise. the sub freq cut-off is usually set at around 50Hzs to be able to produce sub bass only when the music source dictates it. the brunt of the higher bass frequencies in this type of set-up is reproduced by the seps, which needs to be of high quality to be able to reproduce midbass and low bass frequencies anywhere from 250Hzs to 70Hzs

if your the SPL type, the bass in SPL set-ups are best described as BOOMY. the bass of such set-ups have very loud, ground-shaking, chest pounding and monstrous levels of bass. there the type that you could hear blocks away, makes heads turn and triggers car alarms. the subs frequencies for such set-ups are usually set anywhere from 150Hz to 80Hzs, and are boosted several decibels around 100 to 80Hzs to add more body to the low end frequencies. although strictly speaking, "frequencies above 80Hzs are not considered as sub frequencies"

lastly, if your the SQL type, imagine your sub bass as "colorful" (something that will make you enjoy the music more...dance to it, sing with it, but wont strain your ears or anger your neighbors). these are the type of bass frequencies you hear in certain RnB tunes like ignition by r kelly (among others), chillout and club tracks, etc. the bass frequencies here are set anywhere from 90-70Hzs just to give the lowend tones more emphasis without taking over the whole stage. enthusiasts may or may not boost the said frequencies, depending on their preference and like SQ bass, the subs frequencies are as discreet and precise but have more presence. also, the settings for the seps are similar to that of SQ.

i hope this doesnt come as a lecture to you bro...
just hope that itll make it easier for you to grasp what you wanna hear  

nice!  

Mga bossing, can i revive this topic for newbies like me?

My HU has a High Pass Filter control from 50Hz to 250Hz and a slope of -0db/oct to
-18db/octave. Gusto ko bawasan and bass na lumalabas sa separates ko. Malaks pa rin kasi. Gusto ko sa sub lang ang bass. Anong setting dapat ang HPF ko?

Salamat sa pagtulong ulit mga gurus.

Assuming my separates have a frequency response of 50hz to 20khz, is it correct that the optimum cross-over cut off be made at 50hz?

Quote from: easyman on October 24, 2004, 07:36:16 PM
Mga bossing, can i revive this topic for newbies like me?

My HU has a High Pass Filter control from 50Hz to 250Hz and a slope of -0db/oct to
-18db/octave. Gusto ko bawasan and bass na lumalabas sa separates ko. Malaks pa rin kasi. Gusto ko sa sub lang ang bass. Anong setting dapat ang HPF ko?

Salamat sa pagtulong ulit mga gurus.

Try between 60-80 hz.

Quote from: meowmix on October 25, 2004, 12:39:51 AM
Assuming my separates have a frequency response of 50hz to 20khz, is it correct that the optimum cross-over cut off be made at 50hz?

Check the spec sheet for the freq. response graph. From there you would tell if you could use 50 Hz as HPF.

Pero tingin ko higher than 50 hz dapat, say, mga 65 Hz.

Quote from: Raymond on October 25, 2004, 09:21:56 AM
Try between 60-80 hz.

What about going 100 hz and up? Ano mangyayari po sa bass? Sinibukan ko at parang nawawala ang bass.

Quote from: Raymond on October 25, 2004, 09:22:54 AM
Check the spec sheet for the freq. response graph. From there you would tell if you could use 50 Hz as HPF.

Pero tingin ko higher than 50 hz dapat, say, mga 65 Hz.

Got it.  Thanks, Raymond!

Quote from: easyman on October 25, 2004, 09:09:55 PM
What about going 100 hz and up? Ano mangyayari po sa bass? Sinibukan ko at parang nawawala ang bass.

It should. If not, sira iyong x-over mo  

Seriously though, try researching the internet for a quick rundown of the frequency spectrum.

At what frequency (hz) does sound start to be directional?

Quote from: meowmix on October 26, 2004, 10:44:29 PM
At what frequency (hz) does sound start to be directional?

in general, all mid-high frequencies are directional
this can start as low as 200Hzs and up
though sub frequencies are regarded as "non-directional"...they can be accurately localized when they play at moderate to high levels
for subs, 60Hzs and below is "less directional"...while 70Hzs and up tend to be "more directional