I've owned both (actually, the 27.5 and Aleph 5). Both
were excellent amps though my preference was the 27.5
as it provides better bass control than the Aleph. The
27.5 was reputedly an improvement over the 27 so it may
not be a completly fair comparison. Also, the Aleph puts
out a moderate amount of heat when driven so you need
to consider if your room can accomodate a space heater,
particularly during summertime.
were excellent amps though my preference was the 27.5
as it provides better bass control than the Aleph. The
27.5 was reputedly an improvement over the 27 so it may
not be a completly fair comparison. Also, the Aleph puts
out a moderate amount of heat when driven so you need
to consider if your room can accomodate a space heater,
particularly during summertime.