Frequency question

 

Silver Member
Username: Dandandan

Brisbane, Queensland Australia

Post Number: 157
Registered: May-06
just say you have an amp that has a lpf that is 60hz at its lowest how can you make that tuned lower to 30hz with the same amp
 

New member
Username: Tozsub

Post Number: 8
Registered: Aug-06
you proberly cant
 

New member
Username: Tozsub

Post Number: 9
Registered: Aug-06
wat amp u got anyway
 

Silver Member
Username: Frkkevin

Lake Worth, Texas US

Post Number: 495
Registered: Nov-05
get a bass blocker for whatever frequency you don't want it to go under..
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 4841
Registered: Aug-05
why the hell do you want a lpf at 30hz....

your mids can not play anywhere near that low, and loud enough to compensate for the lack of reproduction of that freq. range.


geez
 

Silver Member
Username: Rob_preg

Royal oak, Michigan United states

Post Number: 526
Registered: Sep-05
why the hell would anyone ever want a low pass filter at 30Hz. So you dont want 30-70Hz, but you want 30 and below? You do reallize you'd be losing almost your entire sub bass region? im very curious as to what the goal behind this idea was.
 

Silver Member
Username: Adddisorder

West palm, Florida

Post Number: 680
Registered: Jan-06
you cant even hear past i think 25 or 28hz you can only feel it not to mention most music doesnt hit that low.
 

Gold Member
Username: Safe_cracker

Chicago, IL US

Post Number: 1415
Registered: Jan-06
I take it is a sub amp?
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 3196
Registered: Mar-04
you do realize that a LPF cuts the freqencies ABOVE its set freq....right?
 

Silver Member
Username: Mendonmafia

USA

Post Number: 182
Registered: Aug-06
yea why would you only want to play fq's below 30hz that makes no sence at all. and the mid ranges wont even play at all pretty much or the tweets and hardly the sub.
 

Silver Member
Username: Dandandan

Brisbane, Queensland Australia

Post Number: 158
Registered: May-06
i mean to 30hz not below
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 4858
Registered: Aug-05
then you are talking about a Sub-Sonic Filter.
not a low pass filter.

which acts like a HPF for your sub.
 

Silver Member
Username: Dandandan

Brisbane, Queensland Australia

Post Number: 159
Registered: May-06
thanks muddy
 

Silver Member
Username: Dandandan

Brisbane, Queensland Australia

Post Number: 160
Registered: May-06
so does it mean if you have a crossover to 40hz it will play any note under that to about 30 hz and get low
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 4874
Registered: Aug-05
here's how it works.


you have a sub.

you set the LPF at say....80hz. that means anyfreq. above 80hz...is blocked out. it plays 80-0hz.

and lets sat your box is tuned to 35hz. you then want to set your SS to say....30hz. so...any frequency below 30hhz is blocked out(rolled off) so your sub doesn't play freq. that much below tuning to avoid your sub from bottoming out.
 

New member
Username: Likeapuma

Washington/Utah

Post Number: 8
Registered: Aug-06
Yes, that's exactly right except if your LPF is set at 80 Hz, it won't cut off any frequency above that. It just phases it out. So if your crossover is a 6 db per octave crossover, then the volume of the frequencies above 80 hz will start to be lowered at that rate.

-C
 

Gold Member
Username: Safe_cracker

Chicago, IL US

Post Number: 1429
Registered: Jan-06
WOW look at this sh!t people finally learning this stuff, lol. Now on you HPF or subsonic you want a steeper rolloff, say 18db/octave to helop eliminate any unwanted"bad frequencies" caused by recording errors or even static. IMO the higher you set you LPF the steeper you want the cutoff because you don't really want a particular sub going to high. This also depends on your size/type/brand of sub. I have a single 15 so I prefer to keep it tight by using frequencies from 25-65 hz, 12's and 10's should be higher. Sure is nice to see people who can talk the sh!t, KEEP IT UP! Polo.. :-O
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 4879
Registered: Aug-05
lol

what the hell was that all about Polo?? lmao
 

Gold Member
Username: Safe_cracker

Chicago, IL US

Post Number: 1439
Registered: Jan-06
A post where people actually got sh!t right, lol. I remember I posted this answer a while back when people kept getting there fricken HPF/LPF mixed up was pretty hilarious, really. Now I see some people actually retaining the right answers in there memory instead of making sh!t up, lol...:-O
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 4934
Registered: Aug-05
you talkin bout me fOO!!!:-(


lmao.
 

Gold Member
Username: Safe_cracker

Chicago, IL US

Post Number: 1440
Registered: Jan-06
HELL NAAAA, lol.


Upload
 

Gold Member
Username: Bestmankind

Los Angeles, CA USA

Post Number: 5122
Registered: Oct-05
polo knows wassup. you know your sh!t man.
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 5069
Registered: Aug-05
that gif is priceless man. LMAO
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