Sub Box Tuning

Fazorcat · 1st March 2005, 10:00 PM

My brother recently bought a box from somewhere... I'm not sure. But anyway, he had it tuned for 35Hz. The speaker he''ll use is a Tumult from Adire. I was wondering if 35Hz is too high for a home theater sub. I thought it was, but apparently he thinks 35 is right. I always hear people tuning boxes for 20Hz. Is his box ok ? (ps, he doesn't have the sub yet, so I can't tell you if it sounds good or not)

xstephanx · 2nd March 2005, 12:46 AM

35 hz is WAY too high, hell have a HUGE peak in his 30-40 hz bass, but most of the "fun" bass in movies (IMO) is in the <30 range, meaning hes overemphasizing the notes that werent meant to be an emphasized, and not giving any attention to the most gut wrenching couch moving notes.

with a tumult, you have the ability to used a relatively small sealed box(130 litres) and still have alot of infrasonic output.

Im not usually one for sealed boxes, but if i were you id do a medium sized sealed box, with a nice big amp, and a linkwitz transform if need be.

454Casull · 2nd March 2005, 01:26 AM

Keep in mind that there is strong content under 15Hz for some movies.

pinkmouse · 2nd March 2005, 01:32 AM

What kind of movies are those? Ones featuring whale mating songs perhaps?

xstephanx · 2nd March 2005, 02:05 AM

finding nemo, blackhawk down, master and commander, LOTR (all 3), starwars episode 1, and thats just some of the infrasonic movies i can name off the top of my head.

Movies these days have insane amounts of infrasound

i also forgot all 3 matrix.

Fazorcat · 2nd March 2005, 05:19 AM

OK cool. I thought so, but he seems to think it'll be good. So I guess we'll have to wait and see. Thanks guys.

BassAwdyO · 2nd March 2005, 05:30 AM

I'm using my tumult for HT 6cubic feet tuned to 10hz. It rolls off a slight bit below 30hz but it still has serious output even down to 10hz.

35hz tuning wont do well in any setup except maybe if you're looking for a high SPL score in a car stereo competetion.

I wouldnt tune any higher than 20hz. Between 10 and 18 hertz is probably the best range. With a smaller box tune slightly higher, with a bigger one, tune lower.

1st March 2005, 10:00 PM	#1
Fazorcat diyAudio Member Join Date: Nov 2004 Location: Wisconsin	Sub Box Tuning My brother recently bought a box from somewhere... I'm not sure. But anyway, he had it tuned for 35Hz. The speaker he''ll use is a Tumult from Adire. I was wondering if 35Hz is too high for a home theater sub. I thought it was, but apparently he thinks 35 is right. I always hear people tuning boxes for 20Hz. Is his box ok ? (ps, he doesn't have the sub yet, so I can't tell you if it sounds good or not)

2nd March 2005, 12:46 AM	#2
xstephanx diyAudio Member Join Date: Oct 2004 Location: t-dot, canada	35 hz is WAY too high, hell have a HUGE peak in his 30-40 hz bass, but most of the "fun" bass in movies (IMO) is in the <30 range, meaning hes overemphasizing the notes that werent meant to be an emphasized, and not giving any attention to the most gut wrenching couch moving notes. with a tumult, you have the ability to used a relatively small sealed box(130 litres) and still have alot of infrasonic output. Im not usually one for sealed boxes, but if i were you id do a medium sized sealed box, with a nice big amp, and a linkwitz transform if need be. __________________ CREEEAAAAAMMMMM CHEEEEEESSSSSSEEEEEEE!!!!! EEEEESSSSEEEEEEHC MMMMMAAAAAEEEERRCCC!!!!

2nd March 2005, 01:32 AM	#4
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	What kind of movies are those? Ones featuring whale mating songs perhaps? __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

2nd March 2005, 02:05 AM	#5
xstephanx diyAudio Member Join Date: Oct 2004 Location: t-dot, canada	finding nemo, blackhawk down, master and commander, LOTR (all 3), starwars episode 1, and thats just some of the infrasonic movies i can name off the top of my head. Movies these days have insane amounts of infrasound i also forgot all 3 matrix. __________________ CREEEAAAAAMMMMM CHEEEEEESSSSSSEEEEEEE!!!!! EEEEESSSSEEEEEEHC MMMMMAAAAAEEEERRCCC!!!!

2nd March 2005, 05:30 AM	#7
BassAwdyO diyAudio Member Join Date: Jun 2004 Location: Illinois	I'm using my tumult for HT 6cubic feet tuned to 10hz. It rolls off a slight bit below 30hz but it still has serious output even down to 10hz. 35hz tuning wont do well in any setup except maybe if you're looking for a high SPL score in a car stereo competetion. I wouldnt tune any higher than 20hz. Between 10 and 18 hertz is probably the best range. With a smaller box tune slightly higher, with a bigger one, tune lower. __________________ The golden rule of DIY: Build nice, or build twice!


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2nd March 2005, 01:26 AM	#3
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	Keep in mind that there is strong content under 15Hz for some movies.

2nd March 2005, 05:19 AM	#6
Fazorcat diyAudio Member Join Date: Nov 2004 Location: Wisconsin	OK cool. I thought so, but he seems to think it'll be good. So I guess we'll have to wait and see. Thanks guys.

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