Transformer might be slightly more efficient at 60Hz but it doesn't make much difference when power is low (SACD etc.). Filtering after rectification will leave a little more ripple but it might be inaudible. Motor might be a "Step Motor" being fed frequency to obtain exact linear speed/frequency. In either case - DC or Step Motor it is regulated system independent from the 50/60Hz line frequency and most likely crystal based.
The effect 60Hz Cycles on 50Hz SACD-PLayers
Hi Everyone: I am originally from Denmark, Europe, where 230V/50Hz is used in the Outlet. I have though recently moved to Ecuador, where they have 110V/60Hz. Now The Voltage is not a problem, since you can get Voltage Transformers/Stabilisers all over as well as have a certified electrician change the voltage from 110 to 220V in some or all sockets, depending on your individual wish, without any problem.
My problem is the Frequency 50 versus 60Hz. Now as far as I can deduct, My Mark Levinson Pre and power-amp will not be affected, since there on the back of the Pre (No. 28) says 220V and 50/60Hz and on the back of the Power-amps (No. 20.6) it says 210-240V and 47-400Hz. With these data, ingraved on the back, both should be in the clear as far as I can see. Now I can see, that the power-amps have been changed to 230V. This I can see, by looking down through the top-plate and down into the front print-board, where it says 230V. I cannot remember if it also says 50Hz, but I seriously doubt it, since it, as earlier mentioned, says 47-400Hz.
Now my newly purchased (from new) Luxman D-06 SACD-Player is another matter. it is definately a 230V/50Hz Machine, according to the note on the back of it. Now I have tried to read several forums here on Audiogon and elsewhere. Some say, that the cycles can burn the internal transformer of the Player, saying something to the effect of, that the current rises or something like that, I didn't quite understand it, to be honest. This problem, should though, as far as i could understand mostly if not always, be when you take a 60Hz apparatus to a 50Hz country and not so much, if at all, the other way around (My case). Others say, that since all CD and SACD-Players have DC-Motors, then the cycles does NOT affect the motors operating the SACD at all. What is true??? I have thought about buying a certain apparatus, which changes the cycles from 60 to 50Hz to plug in between the outlet-socket and the Luxman, but I've heard, that such devices are very costly ($600USD/Unit) and since my SACD-Player is the only apparatus, which is Firmly a 230V/50Hz Unit, then this is where I ask You Guys. Is it necessary for me to buy such a Cycle-changing unit, just for my SACD-Player, when all other unit are fine with 60Hz??? Some say, that it all depends on the quality of the parts used in general and the transformer in particular and if this is true, then there should be no problem, since I believe I can safely say, that Luxman are known for using High Quality Parts.
So my question to You All therefore is: Can my Luxman D-06 Stand The Muster of being fed with 60Hz??? Is it in such good quality, that it won't overheat or burn out the Transformer or any of the other parts inside??? Wil it affect It's Sound Quality??? Or is it Definately Necessary to buy such a Cycles-Change Apparatus for it to work properly and safely??? Will my warranty change, because I use 220V/60Hz instead of the specified 230V/50Hz???
I'd appreciate any and all comments to help me decide what to do.
Have a Great Audio Day All of You.
Sincerely Thomas.