Review and Measurements of Denon PMA-50 Amplifier

[Willem]

I would go for a bit more power. At the budget end that means the Yamaha AS701/801, although they are admittedly bulky.

 

[pablolie]

I am confused - under the Review Index for integrated amplifier this is recommended as a component. But in the last paragraph of the review it is not? I think it looks like very decent bang for the buck given this will almost always (or SHOULD) be paired with a sub and bookshelf speakers.

 

[Mark S.]

Thread exhumation (I just bought a PMA-60, yet to arrive);

curious about the switching frequency of the D-amp modules in end-to-end 'digital amps' like these - is it fixed or does it change according to the sampling rate of the incoming PCM, i.e. to a multiple of either 44.1 or 48KHz? If it's fixed that implies that the amp is effectively performing a D/A and resampling conversion between the 'pre-amp' and 'power-amp' sections. I recall that way back in the early days of CD a few true digital amps appeared (to not particularly rapturous acclaim) that took the 16/44 PCM output of a CD transport and literally multiplied the value of each sample arithmetically (how they filtered the output I have no idea).