The 250Ti is about the most-un-West-Coast speaker JBL made in the "glory days".
I've never found the 250Ti bright. If so, most of them have level adjustments on the rear (jumper plates) for the mid and tweeter. There's no reason for one of these to be bright.
As for their sonic character- there aren't many speakers that are closer to dead-on-neutral than these. Great bass extension, great high extension, very good balance. They do like a bit of power (200w/ch is about right) to get really dynamic... but if you feed 'em correctly, they will stun the hell out of you sometimes with what they can do...
Some who like the "forward" character of JBL speakers of the era with horns, won't like the "slightly more laid back" character of the 250Ti. Greg Timbers, the designer, will tell you that the 250Ti was far more accurate, in tonal balance, though...
Regards,
Gordon.
Regards,
Gordon.