which turntable or how to convert to balanced phono setup?

"Even unbalanced signal on the conventional RCA input is converted to the differential processing mode right after the input terminals. (Emphasis added.)"

That would be a neat trick indeed, without a transformer to do the job. I suppose it could be done with an active device, too, but that would be suboptimal, because it requires a processing step in the signal path which would inevitably add distortion however minor.  Are you sure the reviewer did not just misunderstand some blurb? The fact that the PE505 is fully balanced does not at all mean that the RCA input jack is not there to receive an unbalanced signal.  Like I said, Atma-sphere and probably BAT, both of which companies make only fully balanced preamps and amps, provide that SE input option.  The PE505 further offers SE outputs. This is done so as not to alienate potential customers who do not want to convert their whole system to balanced op. Anyway, this is important only to potential buyers of the PE505, of which I am not one. I'm out.

lewm

That would be a neat trick indeed, without a transformer to do the job. I suppose it could be done with an active device, too, but that would be suboptimal, because it requires a processing step in the signal path ...

@lewm, please, with all due respect to you, this is just mistaken. A differential amplifier, which is what the Teac is stated to use, is a type of balanced amplifier. It doesn't use transformers or other active circuitry to be balanced, and is commonly used in audio. Here's an explanation from Paul McGowan that may be helpful:

https://www.youtube.com/watch?v=ZiF4sWRlsQw

What I am talking about, what you say happens, is feeding a differential amplifier with a single-ended signal where you say the SE signal is converted to balanced mode.  If you don't do anything with the SE input (transformer input or etc), except hook it up to the balanced input via RCA, then you are driving one half of the balanced circuit (typically the positive phase) with the hot input from the SE source, and the other half of the balanced circuit (typically negative phase) is grounded by virtue of being connected to the ground side of the upstream SE input.  It's really not much different from hooking up a phono cartridge in typical SE mode. You would not get the benefit of balanced operation that way. This is even assuming that the RCA input on the TEAC is connected properly to the balanced circuit, rather than being connected so as to drive the balanced circuit in SE mode. You can't create a balanced source by waving your hands over an SE source. Or please tell me what is driving the negative phase of the balanced input, if you are still convinced I am wrong.