Mcm 8" 55-2421 Ts parameter

[jbell]

.it will be somewhere between 400 and 500 ltrs.

500liters for a $30 driver? really??? That's above and beyond anything I've tried with this driver.

Here's my favorite dual mcm, and it's in the low 200liter range.

 

[epa]

not moddeled it yet
but hr says 300 ltr.
i like your design ,but kornie want a bit lower.
well see.😛

 

[epa]

need dimensions off the speaker

 

[jbell]

not moddeled it yet
but hr says 300 ltr.
i like your design ,but kornie want a bit lower.
well see.😛

Yep -- I cheer you on...

if you want to use my fold, where it's an up/back, you can just increase the length easy enough.

 

[kornnylike]

Epa,What size you can this cabinet will be

 

[epa]

still fiddling
i'm gona steel jbells design,a bit extended.🙂

 

[tb46]

...need dimensions off the speaker...

Hi epa,

I think the MCM 55-3421 (the die cast version of the 55-2421) has almost the same dimensions, see bottom of attached pdf:

Regards,

 

[epa]

tnx oliver.
i need every mm to get s2 right

 

[epa]

ruff sketch.
fiirst path is folded as jbells
second path is the same style
the rest you can see
aprox 380 ltrs

 

[kornnylike]

ruff sketch.
fiirst path is folded as jbells
second path is the same style
the rest you can see
aprox 380 ltrs

looking good epa

 

[epa]

this is it .
credits to jbells clever folding style.
i'm a bit bussy the next few days .

 

[kornnylike]

Indeed it is a clever folded and it looks ez to build
Epa how much cab will be needed to over 135db or more

 

[epa]

in theory 6 cabs wil be over 135 db from 32 hz up

 

[kornnylike]

in theory 6 cabs wil be over 135 db from 32 hz up

6 cabs not bad at all and ez to move around great

 

[kornnylike]

Epa before you go what is the outside dimension for the cabinet

 

[epa]

102*85*45 cm

 

[kornnylike]

Thanks for the measurement

 

[kornnylike]

push pull

Is it better to have the drivers setup as push pull , would it improve the sound quality of the bass horn.

 

[epa]

you mean 1 driver reversed,then yes.
but that wont fit.
but the 1/2"ply would gives more audible distortion.
you need to do bracing in the last 2 parts of the horn and the rear chamber.
i wil do the bracing later.

 

[kornnylike]

you mean 1 driver reversed.

Yup