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				Re: First build Jack 112 x 2
				Posted: Wed Feb 20, 2013 12:47 pm
				by Bill Fitzmaurice
				iamlowsound wrote:
I was thinking the 250 and extending the ports to make it a 30Hz tuning, as a low B is 31Hz.
Think again. If it's not in the plans there's a reason why, the most common one being that it won't work. And the fundamental frequency is moot. Good thing, as otherwise 99.9% of 5 string players would not be able to play a low B.
 
			
					
				Re: First build Jack 112 x 2
				Posted: Wed Feb 20, 2013 2:07 pm
				by iamlowsound
				Bill Fitzmaurice wrote:iamlowsound wrote:
I was thinking the 250 and extending the ports to make it a 30Hz tuning, as a low B is 31Hz.
Think again. If it's not in the plans there's a reason why, the most common one being that it won't work. And the fundamental frequency is moot. Good thing, as otherwise 99.9% of 5 string players would not be able to play a low B.
 
Good thing I was going to check with you before I started building:) Would you recommend the T24 underneath if I wanted to hit the fundamental/give the low end a real boost?
lowsound
 
			
					
				Re: First build Jack 112 x 2
				Posted: Wed Feb 20, 2013 2:36 pm
				by Zack Brock
				iamlowsound wrote:
Good thing I was going to check with you before I started building:) Would you recommend the T24 underneath if I wanted to hit the fundamental/give the low end a real boost?
lowsound
That will work fine and likely sound great... as long as you remain cognizant of the caveats of having sub bass on the stage, which will interfere with the front of house. Assuming the front of house is full range with subs then be prepared to make your FOH sound engineer very unhappy if you do! In cases where the FOH is lacking in the low end, you are good to go.
You could also consider a three way Omni 12 Full Range with two BP102's for the "subs" or a single 12".  
http://billfitzmaurice.net/Omni12.html
Personally, a pair of Jack 10's is all I've ever neded for backline and it sounds fantastic. I have four of them, Beta 10A loaded, and never had a need to use all of them at once. I play a 5" string and no complaints from me about low end authority out of a Jack.
 
			
					
				Re: First build Jack 112 x 2
				Posted: Wed Feb 20, 2013 3:07 pm
				by iamlowsound
				Zack Brock wrote:iamlowsound wrote:
Good thing I was going to check with you before I started building:) Would you recommend the T24 underneath if I wanted to hit the fundamental/give the low end a real boost?
lowsound
That will work fine and likely sound great... as long as you remain cognizant of the caveats of having sub bass on the stage, which will interfere with the front of house. Assuming the front of house is full range with subs then be prepared to make your FOH sound engineer very unhappy if you do! In cases where the FOH is lacking in the low end, you are good to go.
You could also consider a three way Omni 12 Full Range with two BP102's for the "subs" or a single 12".  
http://billfitzmaurice.net/Omni12.html
Personally, a pair of Jack 10's is all I've ever neded for backline and it sounds fantastic. I have four of them, Beta 10A loaded, and never had a need to use all of them at once. I play a 5" string and no complaints from me about low end authority out of a Jack.
 
Good to know, I am wanting to go with a rig that is as light weight as possible, so I'll probably just build the DR250, or maybe Jack 10L, and see if I am lacking anything in the low end department. 
lowsound
 
			
					
				Re: First build Jack 112 x 2
				Posted: Thu Feb 21, 2013 6:39 pm
				by AntonZ
				Bill Fitzmaurice wrote:Think again. If it's not in the plans there's a reason why, the most common one being that it won't work. And the fundamental frequency is moot. Good thing, as otherwise 99.9% of 5 string players would not be able to play a low B.
I recently had a discussion on that with a bass player on a DIY audio forum. Could not convince him that he did not need <40Hz for his 5 string. I should not have bothered  

 
			
					
				Re: First build Jack 112 x 2
				Posted: Sun Mar 03, 2013 6:17 pm
				by JonoSkip
				Hey Tim, congrats to you on your great looking and sounding cabs, nicely done  
 
   
 
Sorry for the late reply but I've been on holiday for 2 weeks without much internet access.  Glad I could help with the foam though.  Maybe we can catch up again sometime compare notes on shuttle vs streamliner (no pun intended) or make a stack of 4 Jacks  
 
 
cue stack of Jacks photos  

 
			
					
				Re: First build Jack 112 x 2
				Posted: Mon Mar 04, 2013 12:57 am
				by Fenderfan
				Haha sounds good Jono! Team up with Harley and.... Boom!!
			 
			
					
				Re: First build Jack 112 x 2
				Posted: Mon Mar 04, 2013 2:31 am
				by Charles Jenkinson
				AntonZ wrote:
I recently had a discussion.......with a bass player on a DIY audio forum.
A futile exercise.