Bench is full of black boxes at the moment. Got this Denon dvd 3910 from the car boot sale yesterday, and naturally doesn't read discs. Stripped it down so I could see laser, seemed to be trying, but it can't see discs. Though I would try and "clean" the laser, a gentle puff and a cotton bud, it works. Shocked, the mythical has happened to me. "Cleaning lens" has never done anything for me before. Plays CDs and DVDs fine. Recognises, but won't play my SACD. Apparently that can happen sometimes.
Ongoing work on the BS1000, I have put in the famous faital 5FE120, which I had ready for another project. That made an improvement, but still not quite there. Rather than making another passive crossover, I realised my 2 way valve crossover, if I plugged 2 channels in series, I could get a mid frequency range, surrounded by a high and low pass filter (very exciting). The missing piece now, I am coming to appreciate is the "baffle step" compensation.
So I have revisited Edge, and yes, baffle step compensation should be running between 100 and 600Hz for that driver. Crossing over in the middle of that range, not sure how sensible, but, put in a passive baffle step on the mid, 4mH and 8 ohm, and definite step in the right direction. Its is not right yet in the upper mid and some voices are a bit odd, but a lot more sounding more natural, and the bass is sounding, er, not boomy? The individual frequency bands don't seem to interfere with each other. That quality noticeable by its absence.
For the observant this bass driver was originally fitted to an Ias Beaulieu.
In other news, once upon a time I was commenting on how there were less horn systems at the show than there used to be, and eddiebaby challenged me to make some. I don't take any notice of anybody
, but I have been accumulating interesting cheap drivers over the years. Recently I scored some Fane studio 8Ms Which looked like they ought to be quite nice (huge magnet). I retrospectively found these have a bit of a cult following. So I have, some Celestion tweeters, some Realistic upper mid horns and the 8Ms (and I do have plans for some 18" bass).
I quite like the outrageous look of the Jadis Eurythmie II
from
https://www.stereophile.com/content/jadis-eurythmie-ii-loudspeaker
I have some thinking to do. Low priority. A challenge for my woodworking, or would that be hardboard?