getting drumkit believeable - what modest approaches work?

freddi · 24th January 2008, 05:47 PM

what might work in minimal bulk to get nice solid drumkit sound without resorting to bulk of horns? will some larger woofer with Linkwitz transform get the kickdrum?
how large of a midrange direct radiator does it take to get some snare snap?

ideally the speaker would be acceptable on all music genre.

jethdub · 24th January 2008, 07:33 PM

I always think that kickdrum sounds best on sealed cabs, they don't even have to be so large as too much real sub just muddies things up, something that rolls off at around 50 Hz would probably sound better on kickdrum than a cab with extension to say 35Hz. For that reason I wouldn't think a LW transform to be necessary. On the other hand you say minimal bulk so depending on size of venue it's unlikely you'll get levels required qithout a fair few boxes.
Maybe one or two biggish 15/18" horns stacked would do it for you..like I said, depends on size of crowd as to how much of x cab you'll need.

freddi · 24th January 2008, 08:22 PM

it would be for home use - I have Karlson couplers but would like to have something different for a change.

hitsware · 24th January 2008, 08:43 PM

Sealed can kick well, but they do really suck up the power.
(perhaps even more than theory suggests)

GM · 25th January 2008, 02:34 AM

Theory is spot on, just most folks apparently don't understand the theory.

hitsware · 25th January 2008, 02:42 AM

so whats the theory of why sealed cabs suck up so much power ?

GM · 25th January 2008, 02:50 AM

Folks seem to think that since the cab is rolling off the low end it's not using much power, but if it's getting a high amplitude signal the driver is trying to reproduce it against a high box compliance, heating up the VC, which draws more current, etc., etc.. I^2T rules until the amp starts clipping or the VC blows open.

jethdub · 25th January 2008, 02:59 AM

This problem could surely be countered by using a steep high pass filter.

hitsware · 25th January 2008, 03:11 AM

Quote:

Originally posted by jethdub
This problem could surely be countered by using a steep high pass filter.

at the expense of extension

GM · 25th January 2008, 03:24 AM

Quote:

Originally posted by jethdub
This problem could surely be countered by using a steep high pass filter.

Quite true, but a surprising number of folks believe 'rumble' filters are only required on vented alignments or that room gain will compensate enough to make it a moot point.

24th January 2008, 05:47 PM	#1
freddi diyAudio Member Join Date: Aug 2005	getting drumkit believeable - what modest approaches work? what might work in minimal bulk to get nice solid drumkit sound without resorting to bulk of horns? will some larger woofer with Linkwitz transform get the kickdrum? how large of a midrange direct radiator does it take to get some snare snap? ideally the speaker would be acceptable on all music genre.

25th January 2008, 02:34 AM	#5
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Theory is spot on, just most folks apparently don't understand the theory. __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

25th January 2008, 02:50 AM	#7
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Folks seem to think that since the cab is rolling off the low end it's not using much power, but if it's getting a high amplitude signal the driver is trying to reproduce it against a high box compliance, heating up the VC, which draws more current, etc., etc.. I^2T rules until the amp starts clipping or the VC blows open. __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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24th January 2008, 07:33 PM	#2
jethdub diyAudio Member Join Date: Jan 2006 Location: Mexico, at present.	I always think that kickdrum sounds best on sealed cabs, they don't even have to be so large as too much real sub just muddies things up, something that rolls off at around 50 Hz would probably sound better on kickdrum than a cab with extension to say 35Hz. For that reason I wouldn't think a LW transform to be necessary. On the other hand you say minimal bulk so depending on size of venue it's unlikely you'll get levels required qithout a fair few boxes. Maybe one or two biggish 15/18" horns stacked would do it for you..like I said, depends on size of crowd as to how much of x cab you'll need.

24th January 2008, 08:22 PM	#3
freddi diyAudio Member Join Date: Aug 2005	it would be for home use - I have Karlson couplers but would like to have something different for a change.

24th January 2008, 08:43 PM	#4
hitsware diyAudio Member Join Date: Mar 2002	Sealed can kick well, but they do really suck up the power. (perhaps even more than theory suggests)

25th January 2008, 02:42 AM	#6
hitsware diyAudio Member Join Date: Mar 2002	so whats the theory of why sealed cabs suck up so much power ?

25th January 2008, 02:59 AM	#8
jethdub diyAudio Member Join Date: Jan 2006 Location: Mexico, at present.	This problem could surely be countered by using a steep high pass filter.

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