BTW, with the new price drop, I will recommend the KRK ROKIT 5 powered speaker for a compact all in one solution. It is likely equal to, or even superior, in performance compared to the Audio Engine 5, based on my assumption that the A5 is similar in measured response as the A2 on the Stereophile measurements. The ROKIT 5 can be had for $200/pair on reputable online dealer sites.
Here are my measurements of this device:
On Axis, 1 Meter, Spliced with Nearfield LF
Off Axis, 1 Meter, 0-30 degrees, 45-90 degrees
Waterfall/CSD: Scaled to same averaged floor to peak signal range as Stereophile typically uses for useful comparison.
THD vs. SPL @ 1 Meter
If you are wondering how this product performs over 95dB: it does not. Apparently, the amplifier can not drive it more then 96-97dB at maximum with very high distortion/clipping. But please note: 95db in near field is very high SPL. Heck, it's very high for normal seating distances. But if you want to use it moderate or high SPL full range, I highly recommend active crossover at 100Hz at 4th order slope to keep it's clarity in tact at those SPLs. This means a subwoofer is required in that circumstance.
Conclusion: For the same price as the Audio Engine 2, you get superior performance in nearly every aspect of performance(FR on and off axis, distortion, LF extension, waterfall response), with the exception of cabinet resonance. The tiny Audio Engine 2 using a 1" thick braced cabinet would be superior in this aspect.
-Chris