A quick report of first impressions, magical in some ways and underwhelming in others and that can be in the same song at the same time. I’ll know more after a few more sessions.
Midrange can be wonderfully transparent and revealing, upper mids into low treble can be a bit hard. No complaint with treble delicacy and detail. Lower registers can be clear and tuneful or subdued even though you can feel the frequencies. Midrange seems louder than either high or low frequencies.
At this early point I’m guessing possible reasons are:
1. They need using to wake up the slower moving heavier drive units if they haven’t been used for some time (I don’t know if they haven’t)
2. more grunt needed to drive them, I’d be surprised as I’m using my Yamaha A-S3000
3. Old caps on the crossover boards, no idea at this stage or what that does to the sound
4. Old drive units, again no idea but paperwork showing original sale in 1977 suggests they are MK2 as an aside
5. They just sound like this
It’s fun finding out though.