lewm

Responses from lewm

WallySkater and Reference.
Correct. The full range one I bought from Australia to replace the OEM treble toroid is huge and out of production, but it used alone was insufficient to get decent bass response from my 845PXs. The SL bass transformer is necessary. I use an induc... 
How do you organize all this turntable paraphernalia??
I have a beautiful antique side board that resides within a few feet of my equipment rack; all that crap is in drawers of the side board. One drawer has fuses, spare ICs for repair of vintage DD turntables, and the like. Another bigger drawer has ... 
New 55,000 Euro tonearm
My 50 years in this hobby tell me there’s nothing really new under the sun. I understand that you may feel obligated not to reveal your sources, but you must also realize that your policy in that regard reduces the usefulness  of your comments to ... 
WallySkater and Reference.
One transformer won’t work for both great low bass and extended treble. Different turns ratios are optimal for each. But maybe you could get away with it since you’re removing frequencies below 100Hz. You’re on your own there.  
New 55,000 Euro tonearm
Pindac, why are you so secretive regarding the entity that modified your tonearm, especially since you here reveal that they have a product for sale in the current market? One cannot otherwise benefit from your murky descriptions. “Murky” in the s... 
WallySkater and Reference.
I replaced the treble transformer with a full range transformer and run it in parallel with the OEM bass transformer. There’s a bit more to it but not much.  
Best turntable for the buck
Nferre66 +1  
Kronos Sparta or TechDas Air Force III?
Why is the Kronos a silly design? It seems to me to be an honest attempt to address issues that plague any belt driven turntable. Whether it works well or not in that capacity is a matter of the opinion of those who own and use it.  
Micro Seiki RX 5000
If the OP has been tugging on his platter for the 14 years since he posted, he ought to be quite muscular by now or else ridden with stress fractures.  
WallySkater and Reference.
All amplifiers driving all speakers have to obey the same physical laws. Yes, SS amplifiers tend to have a vanishingly low output impedance (<<1 ohm) and can therefore drive very low Z speakers with aplomb. For tube amps, output impedance is... 
WallySkater and Reference.
Dear Mijostyn, while I am a 25-year devotee of Atma amplifiers and OTL amplifiers in general to drive ESLs, I am afraid I must differ; Atma amps, like any other amplifier especially tube types are definitely sensitive to the load impedance, since ... 
How best to eliminate LP warps
Jazzguy, your principle holds if warps are always the result of local expansion or shrinkage of the vinyl disk. But you can also take a perfectly circular disk and twist it so it becomes”warped” in the horizontal plane (viewed on edge). Such a dis... 
Phono Stage upgrade to complement Dohmann Helix One Mk 2
The Manley Steelhead can be vastly upgraded by replacing the output coupling capacitors. I am certainly not about to claim that doing so would result in it sounding as good as the CH1, but it is a worthwhile alteration.  
Harmon Kardon Citation 12 Amp with AR 9 LS Speakers: OHM's Question
What is the stated efficiency of the speakers?  This would be in units of db/Watt at one meter distance, usually.  The "ohms" rating of the amplifier means very little (it usually means that the amp makes X Watts into an 8-ohm load), but if you wa... 
New 55,000 Euro tonearm
Mike, I do not doubt your testimony on iota.  I am just thinking out loud about the two kinds of magnet and why would an electromagnet outperform a permanent magnet in this application.  And of course, there can be any number of other reasons (suc...