Impressive bass, power, crisp and clear mids, and twinkling highs

It has 2x35 watt Class D channels for a very nice 70 watts total power

But after 45 minutes, it has used 85% of its available power.

Because few amps can amplify equal on all volumes, companies that can't afford a class-A amp (which also is very ineffective power-wise) invent new classification of their amps to simulate class

However, I have to say B&O blew me away with this speaker.

The B&O Play Beolit 17 is another in the very fine line of portable B&O speakers