Quote Originally Posted by gearfreak View Post
Where the cabinets were positioned in the room (and where they would be in yours) may come into play etc. (The mention of 30" EV's in the back wall - makes it sound like it could have been a large space).
No, it's actually a small sized room, perhaps 3x6x2.5m (WxLxH), and the 2x30" EV are mounted in the back wall - on the other side of this wall is a small storage space, perhaps 3x1x2.5m.
Quote Originally Posted by gearfreak View Post
Again, knowing the crossover points will help that thought process along.
i.e. the lower the xover point to the LF gets, the less of the horn loading was occurring, and thus maybe the M19 is just or more suitable.
500Hz & 10kHz
I'm wondering at what frequencies horn loading occurs with the 828 (& the 816)?
I also have a pair of JBL 2220A:s, that I'm not quite sure what to do with, but they seem to be wanting/requiring proper horn loading to produce good bass.
Quote Originally Posted by bowtie427ss View Post
Those are what i call "flat mag" 416's, made for a relatively short window of time, i think circa 1982-84. Most 416-8C have a smaller diameter foilcal which is recessed into a slight depression in the back plate, and most had the rubber tire around the edge of the ferrite to protect it from chipping.
The 391XXX code might be difficult to find, the ones i remember from that era are stamped on the inside of a spoke, or in the hub/flange area where the basket bolts to the motor facing the back of the cone.
Foilcal? Grateful if you can let me know what that is please.
"Flat mags"...are these different when it comes to technical spec. or "sound"?
The number is 391020, if that helps.