Hi just came across this post today.
I am using janszen zA2.1 with a Sumo Delilah X-over (no EQ, internal switch set to use external x-over) and SoundLab A-3s and KLH Model Nines. The Nines are faster than A-3s and mesh extremely well with the superb dual 7" woofers in the zA2.1. In my opinion the Nines sound better than the A-3s
I am using janszen zA2.1 with a Sumo Delilah X-over (no EQ, internal switch set to use external x-over) and SoundLab A-3s and KLH Model Nines. The Nines are faster than A-3s and mesh extremely well with the superb dual 7" woofers in the zA2.1. In my opinion the Nines sound better than the A-3s