I have had my la90 for over 18 months without any problems, world class sounding amp and outperforms my other two tube amps. When using it ,never gets hot, just warm to the touch, even after a full days listening!So same amp with a bit lower gain to get this 1-2dB SINAD increase?
However,as it seems case was designed with better thermals in mind?
At 22 x 19 x 9 cm is still small but somehow looks more .