ld wrote:This is one for Ortofon, suggest take it up with them and report back
Thanks, LD. This specimen isn't unique. I have an acquaintance with a Kontra A with the same extreme geometry. When he contacted Ortofon he received the standard boiler plate response about the cart performing correctly with arm level, etc. I was hoping someone other than the PR dept at Ortofon could offer a more in depth explanation.
Blue Angel wrote:What does it sound like? Can you hear any distortion? Do you have any test records? I'm not sure of your cartridge's VTF - is it specified at 2.7g or is there a range eg from Xg to Yg?
The recommended VTF is 2.5, but I've made a habit of tracking at the maximum spec'd on account of the lightweight arm I use...a Mission 774. The sound is ok but not exceptional, same with tracking. I do have a test record I use to check tracking ability and system resonance. The cartridge performs typically with this arm.
The reason I look at these things with the m'scope is in the hopes of squeezing every ounce of performance out of them. I did try lowering the arm pivot but this didn't seem to improve matters, though when this is done other factors come into play, some of which could adversely offset any gains.
kalypso wrote: ....i keep my arm adjusted approx. parallel to the disc surface and don't take things that serious.
This is fair advice, but I've learned in some cases a good cartridge can be made to sound great by paying close attention to the VTA/SRA. I'm still new at this and have much to learn.
ld wrote:Does the rake angle change/improve during playback, when friction/drag is in play ?
That's a good question. I've always assumed one or two degrees was a fair guess, but in this instance even 3 or 4 degrees wouldn't right the angle. The m'scope has a video capture function which would come in useful for exploring this question further.
The stylus is
well set onto the cantilever. There are no obvious problems with the pickup, other than what's apparent in the image above.
lini wrote:Actually the VTA is defined from needle tip to suspension pivot, so that angle would be even steeper.
Grretings from Munich!
Manfred / lini
Greetings from Toronto!