“A solid amp with a 32bit / 192khz DAC using a coaxial connection, and it is a blue tooth amplifier. It's hard to beat with outstanding overall quality that doesn't require surround speakers. Most audiophiles only use two channels for critical listening. For someone who wants the quality, but can't afford a $2000 stereo amp, this is an excellent choice and highly recommended. I have the Topaz 20 early version of this receiver without blue tooth, but the performance is spot on.”