Looks like the Soundcloud link has been broken (or taken down?) but i prefer the J0n35y ear test in any case - comparing recordings of patterns from when I owned an A4 to the same patterns playing through my AK I honestly don’t hear much (if any) difference.
Whether a difference or not, as suggested, with a Minitaur you needn’t worry in any case!
Link is working okay here.
The only difference in the circuitry is that Filter 1 (the ladder filter) has been tweaked for bass. The difference is around 3dB according to one of our devs.
Still, very important to take into account that all units sound a tiny bit different since they are analog.
Link is working okay here. [/quote]
Odd - must’ve been a browser glitch
Thanks a lot simon, 3db actually can be a lot but it depends on 3db of what? Without any details or context it just doesn’t make any sense. 
Anyway, as much as I’d like to have that sound in the A4, I will not switch devices. The form-factor overweights the benefits of the sound.
If there would ever be an A4 MKII with the same enhanced sound and single outs, or even a factory upgrade, I’d be happy to spend my money but I don’t need the keys live, so I’ll just keep my little weakling for now… 
I was a little concerned about this before I bought my A4, as I had read online that some folks took issue with the bass response. I almost went for the AK instead, partly for this reason.
Having bought one and now using it fairly in-depth for weeks, I can honestly say I was worried over nothing. The A4 is capable of all kinds of deep and solid bass tones and I find that in general, it fits nicely with the low end coming from the Analog Rytm; it seems to “pocket” itself nicely.
I bought a Moog Slim Phatty at the same time, in order to play around with the CV functionality of the A4. The SP might hit some low frequencies a little easier, but there isn’t a huge difference, to my ears. Just depends on the patch.