powered sub and pre/amp anyone ?

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powered sub and pre/amp anyone ?

Postby pbassplayer » Mon Apr 11, 2016 3:48 pm

Anyone using a powered sub and a preamp..any recommendations on one...i sat in on a gig in a real small place.. they used 1 pwr'd sub (18")) and 1 jbl eon.. rather then lugging in my amp i just used my sans amp bddi into the sub and it sounded good.

hope all you badasses are doing well !!
pbassplayer
 
Location: syracuse ny

Re: powered sub and pre/amp anyone ?

Postby Golem » Mon Apr 11, 2016 6:00 pm

I tried a powered sub, in the shop. It has a 125hz crossover
as a low pass/high cut filter. Therefore, the g-string mutes
out around Bb. So that Eon that has a wider spectrum must
accompany the sub to offer a complete frequency range.

Most of the frequencies offered by powered subs are the
frequencies I trim off by using the low cut/high pass filter
on my AI head. IOW the sub delivers mainly fundamentals.
Good tone is built out of harmonics. Fundamentals make a
room sound boomy.

The gig you subbed on had used a full range system. A lone
subwoofer, without the rest of the PA, is rather useless as
a bass amp. If the sub you're considering lets your pre-amp
circumvent the low-pass crossover to directly address the
sub's power amp, that may work. I don't know where the
crossover is in the tone chain. If it's like the crossover in a
passive cab, then I spoze you could just remove it or run a
jumper around it.

New basses are red. Used basses are black.
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Re: powered sub and pre/amp anyone ?

Postby 57RIP » Tue Apr 12, 2016 7:05 am

Assuming there is a crossover between the eon and the sub, or that the sub is being run off an aux or maybe 1 side on of the main out... You would be better off using a channel or line in on their board and getting full range coverage. From 10 feet away, bass thru a sub alone isn't usually a sound I could be happy with...
I used to look at my dog Smokey and think, "If you were a little smarter, you could tell me what you're thinking," and he'd look back at me like he was saying, "If you were a little smarter, I wouldn't have to." - Fred Jungclaus
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57RIP
 
Location: PAC NW

Re: powered sub and pre/amp anyone ?

Postby pbassplayer » Tue Apr 12, 2016 4:38 pm

thanks for the info..i'll stick to my regular amp..it was more trial +error than anything else..just a folky type open mic nite (normally w/o a bass player),i just happened to walk in and was invited to play by one of the singers..
pbassplayer
 
Location: syracuse ny

Re: powered sub and pre/amp anyone ?

Postby Golem » Sat Apr 16, 2016 2:34 pm

57RIP wrote:Assuming there is a crossover between the eon and the sub, or
that the sub is being run off an aux or maybe 1 side on of the
main out... You would be better off using a channel or line in
on their board and getting full range coverage. From 10 feet
away, bass thru a sub alone isn't usually a sound I could be
happy with
...


Uhmhuhnnn .... and it gets waaaay worse at 25 to 50 feet :-(

New basses are red. Used basses are black.
- - ---- -- - --- - - - --- - ---- -- - - --- - -- - -

In a perfect world
At the end of the day
Tomorrow never comes.
User avatar
Golem
 


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