Well it was GR hands down:
Lighter
Ease of dialing in a good tone
More power
More open sounding
$1,000 more affordable
Cons:
Little knobs
Little switches
Brain piercing lights
I’m looking at these 2 amps to keep one or the other or both for my upright bass primarily.
My first impression out of the box is the GR Bass is about 1/2 - 1/3 of the weight of the AER