regarding the “dull” sound … or how you wanna call it … you can always tune / design the sound later in mixdown with eqs and compressors. For me personally I find the TR8 to bright / harsh for hihats and rides … always used Lowpass filter on it in mixdown. But yeah the TR8 is really hands on in live performances.
Dail in a Pultec EQ at 3k for a super nice ride or shaker. AR does a great shaker! Just mess around with the noise engine. If you think you still need some bass in the bassdrum (and the AR already has plenty of bass) use a Pultec EQ, set the lower freg to 30 or 60 hz, set the dip to 3 - 4 and the boost also … your subwoofer will thank you and there are so many more tricks to get the best sound out of you machine.
the real fun with the AR beginns, when using lfo to modulate the filter or a transientparameter of a bassdrum or … or … And I don´t know any other drum machine which is able to ping it’s own filter. To be honest, I don’t like the clap on the rytm … so where it’s sun, there is always shade too
At the end … AR and TR8 sounds boss on a proper pa / soundsystem! And the question is: do you like that sound and the way you have to dail it in?