Collected today both tuners for 15 euros. I like them. The Denon has a great, full and richer sound, but has a "flickering signal" (brief cuts) now and then. Annoying sometimes...
The Yamaha has a very good selectivity in both "wide/narrow" and never lose the signal, but the sound (or output level?) seems to be lower than the Denon in both low end and high frequencies, although I can't hear any little noise with the TX-540RS as for the TU-580RD. Is this a matter of alignment or is it possible to replace some components with fresh new ones?
Some pictures from internal Yamaha TX-540RS from the web:
The Yamaha has a very good selectivity in both "wide/narrow" and never lose the signal, but the sound (or output level?) seems to be lower than the Denon in both low end and high frequencies, although I can't hear any little noise with the TX-540RS as for the TU-580RD. Is this a matter of alignment or is it possible to replace some components with fresh new ones?
An externally hosted image should be here but it was not working when we last tested it.
Some pictures from internal Yamaha TX-540RS from the web:


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