bass speaker help

[chris661]

Looks like eminence has done one for a while.....

Eminence BETA-12LTA, 12" Woofer, Wide-Range from Madisound

Gets you down to 29Hz (f3), but the box isn't small......

[tinitus]

Originally Posted by chris661

Gets you down to 29Hz (f3), but the box isn't small......

Suggestion is fine as such

But not for bass guitar use
Eminence and Beyma have about the same 1.5-2mm Xmax, both small and best not use below 500hz

But Beyma has advanced magnet design with shortring, cast chassis etc
Whether it matters or not
Butmost important, Beyma sensitivity seems a good deal better too

But mms and voice coil seems about same value on both
Its a bit surprising that they have totally different Qts/Vas

To me, the important reason I want to do this is to use quality drivers that are way better than what you will find in most commercial bass cabs, and cheaper

[chris661]

Xmax is low, granted, but at 8mm Xlim, you'll be going pretty loud.

I expect that crossing such a thing over around 100Hz, then adding a designated subwoofer would create quite a nice setup...

Still, I'm a guitarist, but not a bassist, so who am I to judge

[tinitus]

Just now Im thinking about making it into a bigger allround speaker
One that does ALL
Guitar, bass, studio, PA, disco, party, music, or whatever you can think of
Maybe even with built in "active"
Its more expencive, and would even need be a pair
But can do a lot more, so it might be worth it

[chris661]

I saw something in a celestion cab. design book that would fit the "bigger, do it all" idea.

3-way design, using an 18" woofer, 10" mid, and compression driver.

I would add some filters for different inputs. For example, most guitar speakers will be pretty flat in the low-mid, dip at 1.5kHz, peak at 3kHz, then roll off steeply. You could do that with a notch filter. Here's an example - http://www.eminence-speaker.com/pdf/manowar.pdf

I presume there'll be similar shapes for bass speakers. Keyboard and vocals would be left untouched, except for a filter on the vocals for the frequency range extremes. Ultra sonic feedback is known to cook amps, and having a thud whenever you say the letter P is pretty irritating...

[tinitus]

Right
this 12" is my choise
I also have a couple of horns
18" woofer is also a PD

Precision Devices International Limited

I consider to use a Hypex/dsp plateamp
Passive xover on tweeter
If you need a more tough pro speaker, its just to bridge the plateamp and use it on mid/tweeter, and connect a pro amp to plateamp sub-out

[nigelwright7557]

Originally Posted by tobee1

hey, i know nothing about speakers. I've blown a 15 and now a 10.
I play a 5 string bass with high c, i like the crunch sound similar to that of an old mesa tube amp cranked. i currently play through a hartke system, i like the sound of the aluminum cones. any ideas on what speakers would be better for this type of sound for bass guitar?
i'm willing/capable to build. i thought that a 12" might be a good route but i don't have a clue, i just play.

I like the sound of 18 inchers, my sigma eminence pro is 650WRMS and goes upto 2KHz.

[tinitus]

Originally Posted by nigelwright7557

I like the sound of 18 inchers, my sigma eminence pro is 650WRMS and goes upto 2KHz.

Nigel, do you use it fore bassguitar or DJ, disco, music ?

[nigelwright7557]

Originally Posted by tinitus

Nigel, do you use it fore bassguitar or DJ, disco, music ?

I use it for disco use.
I use it in conjunction with a 2 by 12 inch full range cabinet.
It lifts the bass to give a good disco beat.

[tinitus]

I consider to use this digital DSP kit from GroundSound