dover

Responses from dover

Who needs a MM cartridge type when we have MC?
Raul re Japanese solid state design - considering the boards for laser guided missiles come out of Japan, I would assume they have some capability in designing competent electronics.There have been many high end SS products built in Japan that hav... 
Who needs a MM cartridge type when we have MC?
Timeltel - before you put the big S in front of the crap, I have found it can take several months for old gear that has not been used for a while to run in, caps to reform etc. For determination of best polarity, the Goldmund methodology was to me... 
Eminent Technology ET-2 Tonearm Owners
RichardkrebsRe: your ET2 mods. Here are a few points for you to consider. I have a view on linear arms in that the rules for pivoted arms and effective horizontal mass do not apply. In fact I have added a lead slug inside the bearing spindle 25 mm... 
Who needs a MM cartridge type when we have MC?
Timeltel - if you ran the Signet MM through the Denon HA1000 headamp, I assume you ran the MM bypass. I cant see how this could improve the sound unless there is an active buffer at 0db, or it is altering the loading that the cartridge sees, fortu... 
Direct drive vs belt vs rim vs idler arm
Lewm - Re the NVS servo question : please read my posts more clearly.My post of 02-04-13 explains that the term "17 degrees of freedom" used on the NVS website under the title "Speed Control" indicates they use it. I included an explanation as to ... 
Direct drive vs belt vs rim vs idler arm
02-11-13: RichardkrebsDover.Are we not getting off topic here? No. Read the name of the thread. 
Direct drive vs belt vs rim vs idler arm
Lewm cc RichardkrebsI dont think the Goldmund numbers quoted are indicative of the sampling rate. I dont think you can count the number of wavy lines on a pcb and equate this to sampling rates. The Goldmund uses a coreless JVC motor. It uses a qua... 
Eminent Technology ET-2 Tonearm Owners
You've just reminded me - I got a big improvement when I put an isolation transformer between the mains and the pumps. Much smoother sound. 
Direct drive vs belt vs rim vs idler arm
Richardkrebs - Is this the Papst or JVC motor ? Can you explain how the speed sensor works in the Goldmund Studio. 
Eminent Technology ET-2 Tonearm Owners
Hi Chris/GrantYes I used 2 pumps running into a 20 litre surge tank. On the pumps I used, reversing phase & neutral at the transformer inside reversed the phase on one of the pumps. In NZ you must not reverse phase and neutral at the power cor... 
Direct drive vs belt vs rim vs idler arm
Re the Goldmund Speed CorrectionGiven that the GP Monaco checks the speed 7200 times per revolution using current computer technology and software, I would vey much doubt the number quoted in the previous post ( 34000 per revolution ) for a 30 yea... 
Direct drive vs belt vs rim vs idler arm
Lewm,According to the Stereophile Review of the Wave Kinetics NVS it uses a DC motor with a laboratory grade servo controller with an active ultrasonic feedback loopReference - Stereophile vol 35 no 10. 
Direct drive vs belt vs rim vs idler arm
What about the latest megabuck DD turntables? I think the one from the Northwest (NVS) does not use servo correction. Is it free of the sort of coloration we are talking about? Rumor has it that it does not pass the Timeline test. From the Wave Ki... 
Direct drive vs belt vs rim vs idler arm
Lewm, LawrenceCould I ask you respectfully to reread my post.My post addresses some points made in earlier posts about "motor slip" and "speed correction systems/servos", both of which can be present in any type of turntable or motor.AC motors hav... 
Direct drive vs belt vs rim vs idler arm
I should have made it a bit clearer in the last post, most Technics SP02 cutting lathe motors I have seen are coupled to high mass flywheel/platters in the order of 70lbs/30kg.