"On its own, the SA3 is an excellent amplifier with a high level of linearity. Price-performance ratio is at an extreme level. The Bluetooth dongle is virtually a no-brainer thanks to aptX transmission and Wolfson converter in the amplifier.
With the addition of the PA3, the sound becomes even more lively. I gratefully accept side effects such as more power, even for critical loudspeakers. I have rarely seen such a favorable upgrade policy." - Torsten Pless, Modernhifi
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