All I know is ( as far as Volume knobs go ), all the way to the left, you get no volume, all the way to the right, you get told to turn down, and/or blow something up. Everything inbetween is pretty subjective.


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All I know is ( as far as Volume knobs go ), all the way to the left, you get no volume, all the way to the right, you get told to turn down, and/or blow something up. Everything inbetween is pretty subjective.![]()
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Another way to state that is... turn it up until it is loud enough for your needs. If you do that and it sucks, then buy another amp. If you do that and it doesn't suck, you are good to go
Of course, that is assuming you know the basics of EQ, input gain, and have technique that at least in some ways transmits something worth amplifying!
Here's something else for you guys with larger cabinets to try.
Rather than starting out using the Low Freq eq control, first try engaging the LF Extend switch. This allows you to take advantage of a different shape/type of filter response that extends the LF response of the amp with a filter that compliments the response of a larger cabinet. Then, use the low eq to taste. The results will be a little deeper, rounder, and also tighter low end.
Ignorant post alert...
I have a ShuttleMax 12.0 and love it. I can twiddle knobs to my heart's content and get great sound with a variety of cabs. Even so, I'm a little confused by the Gain vs. Volume on the preamp. Do the Gain and Volume controls do the same thing or something different?
On the tube channel, the gain is used to dial in the amount of tube grind/warmth distortion, and the volume is used to either boost the signal if you run the gain very low (clean) or cut the signal if you run the gain very high (warmth/overdrive) so that the signal going into the EQ section and the master (used for actual volume) is not either overdriven/distorted or has such a low signal that the signal to noise ration is out of wack (hiss/noise). This is typical of stand-alone tube preamps that have a gain to set the 'tone/feel' of the input signal, and then a volume to control/optimize the input to a power amp, which then has a master volume to set the absolute volume level.
If you want your tone clean on that tube channel, I would cank that volume control all the way up, and then adjust your gain to just below clip as a starting point.
For the FET channel, I assume they have the volume control there so you can use that to balance the output of the FET channel versus the tube, then using the overall master for the absolute volume of the amp. So, for that channel, set the gain to just below clip, and then use the volume to balance the volume of that channel with the volume of the tube channel.
With an FET channel, there is an 'optimum' input gain setting, since solid state preamp distortion is typically pretty nasty... so that clip light is a good way to set the input gain. For the tube pre, its more of an incremental level of 'pleasant' tube warmth, so it is best to ignore the clip light on that channel and use your ears, then using the volume to adjust to signal down or up a bit depending on the gain setting. Pretty nice!
That's helpful, thanks. I use my ears, but can't help seeing all the settings and lights when I change things. I was just curious about the purpose of those controls, and this helps.