2. analog
  3. 1067846540

Resonant Frequency

There is a discussion on cartridge resonant frequency on Vinyl Engine right now.Do the knowledgable members of this forum have ideas as to what is an optimal figure? It is suggested that 10hz is O.K but other figures of around 12hz or even as high as 14hz have been suggested as to what to aim for.Should I be happy with an Rega RB 250 with Origin structural mod,using an Ortofon cartridge, that I have calculated to have a resonance around 11hz?stefanl
stefanl
stefanl OP
296 posts
 
I probably misinterpreted what I was aiming for in the last post,but I thought some added weight might be interesting.I think the straight Jelco arm is possibly much lighter than its "curved" cousin.I would really like to know its effective weight.The experiment failed as it was really too "bassy".What would a Graham 2.2 arm with a Koetsu Urishi mounted in a Linn Sondek sound like?Stefanl
janvoornb3bc
13 posts
 
23 g for the arm plus 2 g for the bolting plus 6 g for the cartridge makes a total effective mass of 31 g. When you plan to reach this 9 Hz, what dynamic compliance did you enter in the calculations? Can you supply some fixed points on this?
stefanl OP
296 posts
 
The information for this arm is sparse.I got one line from Jelco saying their new arm was 23 g.That was it.Last time they said they had no records left of the straight arm they produced 20 years ago for the Ariston Q Deck.It was the same arm on the Revolver Rebel and a couple of others about 10 years ago.Someone said they still OEM a straight arm but I haven't seen it.The cartridge is 7g with a rated compliance if 10.If it gets any heavier it is bad,but I figure the straight arm is a few g's lighter.How much? Stefanl
More to discover