MJ-18 4 Ohm Version

[mrogowski]

Hi Everyone,

If this is out of line for the board, then please remove it with my apologies...

Due to peer pressure from the car audio world, a 4 Ohm version of the Mach 5 MJ-18 is currently being designed. Here are the prelimiary specs (please note that these may vary a bit):

Fs = 24.3Hz
Re = 3.2 Ohm
Qts = 0.33
Qes = 0.35
Qms = 4.99
Mms = 310.8g
Cms = 0.14
VAS = 265l
Bl = 20.9
SPL = 92.2db

This may provide further design options to those who are thinking about using the MJ-18 in an IB config.

Best regards,
Mark

[kingjamez]

It is interesting to note that the Mms has gone up and the FS has gone down. Sounds like it also may have more power handleing as well. Can you confirm that?

[dandan]

when will these be ready to ship?

[mrogowski]

Hi Guys,

Regarding the specs, its hard to say at this point if we are dealing with anything beneficial or simply component tolerances. I requested that these be made as close to the 8 Ohm version as possible. The proof will be in the pudding - when the lot gets here and units are randomly tested. That's when we'll know for certain.

Regarding availability, I'm estimating around 8 weeks.

Best,
Mark

[carpenter]

I assume the Xmax hasn't changed?

[mrogowski]

Nope.

Best,
Mark