On 12/09/2014 07:08 AM, gregz wrote:

I would be more concerned with the crossover. Is it going to br MTM ?
I made a center design over 15 years ago. It worked well, and I got my
desired pattern. I didn't use it as a bass though. They were a bit smaller
than 4 inch. I used a common enclosure, sealed, with plenty of interior
damping, and front panel antidefraction.

Likely MTM - unless there is a brighter idea. Got a large CRT TV at
present. Will likely look at size suitable to stand a likely LCD on it
for the day when the CRT breaks. Of course acoustic parameters are a
prime driver for box size as well.

Crossover Mk1 will be some caps I have in the garage and some wire
likely wound around a cardboard former. However, in future I can have a
play with active, actually designing it properly etc. My thinking for
the future would be that a plan might be to run the two bass speakers as
one up until they hit a frequency where their distance apart might
become problematic, then roll one off. Small is good for this case.
Bass/Tweeter as normal.

I have a 2 channel power-amp spare - but 3 would be ideal if active!


antidefraction? Do you mean round the edges and stand the grill off of
the front baffle?


Pete