ES18BPH

just been sent this plan, looks very nice. im gonna adjust the front braces.

Can anyone "guess-etimate" the response of this cab, if depth is reduced to 636mmm?

I expect shortening horn, and reducing chamber will reduce low end response, will it still reach downto usable 65hz?

More importantly, will upper response be extended?

if you draw a vertical line around 110mm from the front of the cab, yeah i guess lose mouth area horn length and chamber.

horn length is currently 75cm in theory - this is only 110hz @ 1/4 wave

so the rest is the chambers?

just wondering though, why?

saul wrote: if you draw a vertical line around 110mm from the front of the cab, yeah i guess lose mouth area horn length and chamber.

horn length is currently 75cm in theory - this is only 110hz @ 1/4 wave

so the rest is the chambers?

just wondering though, why?

Why reducing depth?

Cube shape kick.. Aesthetics.

But just realised MT121 is approx 668mm deep, so "my" ES18 would have to be at least this as well.

thing is with 3 or 4 next to each other, the whole lot actually gets deeper than 668mm

levyte357 wrote: Can anyone "guess-etimate" the response of this cab, if depth is reduced to 636mmm?

I expect shortening horn, and reducing chamber will reduce low end response, will it still reach downto usable 65hz?

More importantly, will upper response be extended?

Yes for pure kick bin that can be done..
Sacrifice is a bit shorter horn which will take away bit of low extension but 65 Hz will still be in good efficiency range.

I have already made slight simple modification for Electrikal to make "face" of cabinet 636 x 636 mm which will make it more flexible for stacking in various combination's with HOG-s and other 636mm wide scoops.

now I see ..according to some inditions and informations from Sherlock Holmes you already know that smiley2


.. Have to make some sims to see what upper response with trimmed depth from 750 to ~670 will do.. But that can give us just idea as final "character" and "honk/no honk" in delicate low vocal area is impossible to simulate.
In this situation (when you look for better high cutoff) additional Neilpoints modification ( forum.speakerplans.com/forum_posts.asp?T...title=es18bph#470523 ) may be good idea to do.

does anyone have plans for 21 inch speakers on this cab

hiany one know how deep could be the speaker at maximum?

encreasing depth without any other mods means enlarging compression chamber and throat... so means encreasing low end or gain some db on low bandwith part and may be loose high end extension. Mr. Stipe cabs make always discuss about them, I like it. smiley20

no bitzo!
i'd like to say how deep the speaker basket could be!