DX4 versus PM4A (Drive Units)
Hi Arno,
I have been playing my DX4's in big backloaded horns for years...great sound but I wondered if I could stretch it further by changing them for PM4a's (Very low QTS 0,164 vs 0.218)
Any thoughts on this?
I am going to low-pass the lowther and have the mids done with a TAD TD2001 Tractrix
Let me get this clear... you want to use the Lowther solely for the bass? :-)
I have used PM2C's in the past to drive my big bass horns, worked great!
In that case the lower mids should be more controlled and more dynamic. It depends a bit on the design of the horn to profit from the wider bandwidth...
Before you trade them (in case you go through with the idea) then do a test first stiffen the membrane with coating without adding too much weight of course. This should make the mid-bass more clean and the deeper bass more efficiƫnt.
If that works out for you then you can apply the same tweak to the PM4A's.
Cheers,
Bert
--
BD-Design - Only the Best!
Complete thread:
- DX4 versus PM4A - Arno P, 2017-09-24, 18:28
- DX4 versus PM4A - Bert, 2017-09-24, 20:59
- DX4 versus PM4A - Arno P, 2017-09-24, 21:27
- DX4 versus PM4A - Bert, 2017-09-24, 20:59