Quote from: blast on Feb 27, 2010, 12:52AMI noticed that Kelly were making those a while back. I like the idea of stainless as such a good surface in practical terms, but the two models I've tried ... the G&W mk1 and loud LM35 had sound characteristics that didn't do it for me.
Dave, is this Kelly a true 1 1/2G size, or is it a little wider on the rim ? What do you think about the sound ?
It is interesting that Kelly think that it's worth making a 1 1/2G size in stainless... the demand must be there.
Chris Stearn
Professor Stearn, did you REALLY say "TRUE" 1 1/2G?
Hard question to answer. Here's a comparison shot with a Rath B1 1/2W, Bach, Kelly, and Faxx 1 1/2G side by side:
I think the EXTERNAL size is VERY interesting (as noted in previous post.) Without thinking too hard on it, the idea of different metal amounts for different materials appeals to me. I'll have to record some things and listen from the OTHER end of the horn, though.
Internally, seems right in line with the rest. I used a digital caliper and my strongest reading glasses. I thought without a vernier I wouldn't need those glasses. But I STILL have to try to find a consistent spot below the "bite" to measure. I also made rough measurements by dialing in a bore gauge so it just passed the throat and checking that with the calipers. Then I backed the gauge off to where it just DIDN'T pass and measured how far down from the rim the constriction was. Not definitive measurements, but hopefully useful comparative numbers between known models.
Maker Throat Rim->Throat Inner Rim Outer Rim
Rath 7.39 32.71 27.21 40.62
Kelly 6.97 32.70 27.23 39.11
Bach 7.02 34.49 27.14 39.31
Faxx 6.99 34.52 27.16 39.44
I was surprised by my Rim->Throat numbers. My two favorites right now on the Duo Gravis BOTH have significantly shorter distance there. With all the reflections I really can't be even part way certain, but it LOOKS like both of those have more efficient transitions to the throat.
I think it qualifies as belonging in the 1 1/2G family. How "TRUE" it is remains to be seen.