The specs boast a remarkable 115 dB dynamic range which is a full 15 dB (30 times) higher than both the SMSL and Topping

This amp achieves a dynamic range of around 100 dB which should be enough if you don't have very sensitive speakers

One setback with the Topping TP22 is the limited dynamic range which is less than 100 dB. So similarly to the SMSL, there is a constant background hiss

The full range works fine, but I use the latter setup with a subwoofer

I'd provide you with specifications on this amp (like the dynamic range) if I could find any, but after a long search they just don't seem to exist

These things really do pack a punch, expect a great range from this thing

My old amplifier started to fail and needed replacement (dynamic range was screwed: loud was loud, but quiet became super-quiet).I bought this one after reading reviews, and I am seriously impressed

The last item I checked was that of dynamic range in terms of base noise level

I can not get past 40-50% on the knob, I usually have it set to 10-15% with pop music, classical/jazz/old rock recordings with a large dynamic range has the knob set to 25%

One setback with the Topping TP22 is the limited dynamic range which is less than 100 dB. So similarly to the SMSL, there is a constant background hiss

Still works as of now

works as in passing sound one channel has distortion the other is fine....sux