lewm
Responses from lewm
| Voltage regulators and input impedance Well, it’s not that the bass will roll off, although I guess it would at a barely measurable rate since the midrange input Z is stated to be 23K ohms, as that once you get below a ratio of 1:10 for output Z vs input Z, you start to lose more signa... | |
| Tonearms for a Luxman PD-444 As I recall, a hole drilled for the standard FR mount will also accommodate the B60. At least it does so for me. I only have one comment on the long list of possible tonearms. Some of the lesser expensive SAEC tonearms have an odd geometry. This ... | |
| Voltage regulators and input impedance Perhaps there’s a part failure or a bad solder joint in the VR circuit that results in excessive plate dissipation ( too much wattage) across the 6550. You need to have it examined by a competent tech or by ARC directly. My guess is the impedance... | |
| Long and Short Arms. YOU KNOW THEY FIT a Luxman PD444. “Adjustable VTA is a fad”????? You can’t be serious. If you had written that VTA on the fly is a marketing ploy, I’d have agreed, but in this day and at our age, would you really be willing to set VTA with a set screw whilst holding the tonearm a... | |
| Voltage regulators and input impedance If the 6550 is acting as parti of a voltage regulator circuit in the PS, the slight impedance mismatch you cite would not stress it. More importantly, what is the input Z of the Modwright at 1kHz? There’s not much music at 50 Hz. Historically, AR ... | |
| Fidelity Research MC201 for an Ortofon AS-212? Yes, but the way that I am familiar with is by working backward from the resonant frequency. First determine Fr. Then use the cartridge compliance to calculate effective mass. (The equation relating Fr, C, and M is readily available on line.) If y... | |
| If my Kenwood KD decks can't be repaired? I think there is every possibility that with some patience and diligence you can find someone qualified and willing to work on your Kenwood TT's. It might help here if you would state what are the problems, exactly, Some issues can be very simpl... | |
| How best to eliminate LP warps Pindac, You seem to have more than average problems with wobbly spindles caused by excessive wear in the bearing shaft, or your friends do. I can't recall ever having observed it. | |
| Perimeter Ring Clamps: Yay?, Nay?, Sources?? Elliott, Not that I want to talk you into using a peripheral ring, but what was it about Twoleftears' reference that turned you off so thoroughly to the whole idea of a peripheral ring? It turned me off to "Wayne's Audio", more than anything else... | |
| Perimeter Ring Clamps: Yay?, Nay?, Sources?? To add a highly specific experience of my own, I have a Kenwood L07D. Kenwood made an accessory outer ring for the L07D, the DS20, which goes to show how old the idea is. When you install the DS20, you are also supposed to activate a switch on the... | |
| How best to eliminate LP warps I see Jazz guys’ point, if you assume that a warp represents a local stretching of the vinyl, such that there is excess material in the horizontal plane and this forces the warp to occur. Like pavement expansion on hot days. If we assume that that... | |
| Perimeter Ring Clamps: Yay?, Nay?, Sources?? Have you actually placed the ring on yourTT81? Because I am otherwise dubious of the fit. Also, many have reported a danger to the stylus and cantilever when placing the cartridge at the rim of an LP. Finally, what is the mass? I would not automat... | |
| Can a turntable ever have enough isolation? blue collar, Where do you live? Are you in a large city, in an apartment, out in the country, in a private home? Is your system sitting on a well supported floor? These are all factors that enhance or diminish the role that isolation can play in e... | |
| How best to eliminate LP warps I recently bought a second copy of the Cardas test LP. I’ve been using it for years to warm up cartridges that either need break in or have been out of use for long periods, which happens when you own 5 turntables and 2 systems. Anyway, the new co... | |
| How best to eliminate LP warps petgo, I guess the only clue an end user would have that a cartridge is internally misaligned would be if he attempts to set azimuth electrically (equal crosstalk in each channel) and this result requires tilting the cartridge in either direction ... |