Input Gain + Vol, + Master Vol

[agedhorse]

On 26/12/2021 at 12:20, fleabag said:

 

 

No, i cant seem to light up the input  O/L  ( underneath the Gain/Gain Vol ) even with gain fully up and grumbling

There is a very wide range of output levels that basses can output, which are also affected by setup and playing technique. 
 

Likewise, amp designers design amps to handle the wide range of levels in different ways. Some amps are designed with the ability to handle high input levels without overdriving, other amps are designed to overdrive more easily and some amps fall between these extremes.

 

The Shuttles fall in the middle, it might be difficult to overdrive with a low level bass but is also able to handle very hot basses.

[fleabag]

I've run passive and active basses through the 6.2 and never had the O/L  light up,  which is a testament to what you say.  Its a fabulous amp, and this is my 2nd  Genz.  My first was a  9.2 Max which was a veritable beast.