McIntosh and Aerial are a great match! I use the MX119 + MC402 combination to drive the Aerial 7Bs, and in my opinion, this produces some of the clearest, cleanest, dynamic, exhilirating and non-fatiguing sound I've heard. Although a sub isn't truly needed since the 7Bs are rated down to 35Hz, I added an Aerial Acoustics SW12 sub and noticed an added depth and timbre to the sound stage, particularly in added vocal resonance. McIntosh and Aerial are a great combo - you won't go wrong with this.