I was the final sound designer for the A9, so my job was deciding on its final tonal balance.

Tim Gideon of PCMag.com wrote in this review:

“The bass is intense without being over-the-top, as the system seems to primarily focus on high-mids and highs. The A9 is a crisp, bright system, balanced out by powerful low-end, for sure, but it is the higher frequencies that own the stage.”

 

Trusted Reviews wrote in this review:

“B&O has opted for a relatively neutral signature, but bass, mid and high frequencies all shine through with the A9 managing that difficult balancing act of tying accuracy and emotion.”

 

Nick Rego at tbreak.com wrote in this review:

“After all this though, how does the A9 sound? In a word, mesmerizing. The sheer power that the A9 can deliver is absolutely incredible, and if placed in a well furnished room it could be hard to figure out where this incredible sound is coming from. I decided to put the A9 to the ultimate test for a house party I was having in my back garden. I had positioned the A9 towards the top end of the garden path, and when I turned up the volume the music could be heard in almost every corner. There was no distortion at all on the music even when I cranked the A9 up as high as it could go (without waking up half the neighborhood). The A9 certainly delivers on B&O’s promise of sheer audio performance packaged in a sleek enclosure.”