Non-linear Output From Monitor Knob

[AIllusion]

Digi has been great in resolving bugs with the C24 except for one... just wondering if anyone else has this same issue with the main output control. The level "jumps" in both directions when dialing the volume knob. The transition is not smooth as one would expect. Instead of tapered db control, it's more like a taper with intermittent stairsteps. The level can jump +/- 4-5 db when slightly turning the control.

Any solutions?

Thanks,

[c zarkos]

This is addresed(sort of ) in the C24 manual.
The control circuts are digitally controlled. Read Page 48 of the manual for the explaination. Hope this helps. Craig

[DigiTechSupt]

Information courtesy of Stan Cotey, product manager for control surfaces here at Digi:

Something users may notice is a funny "bump" in the taper of the monitor control. The monitor level control is accomplished electronically, so the actual rotary level control is really a shaft encoder as opposed to an analog pot. There are a finite number of steps (in this case I think it's 32) on the rotary control, which means there will be some compromise between how large the control range is and how large the individual steps are. The taper was specially designed by Focusrite to offer the best control range, given the fixed number of steps. However, there is a nearly 10dB "bump" in the level control down around the nine O'clock position on the control. This is normal and again, if the monitor system is set up properly (see below), should not be a problem.


-I suggest setting the monitor power amplifier gain (or powered monitor gain) so that reasonably loud (but not "blasting") monitor levels occur at around 2:00 on the monitor level control. This allows another 10dB of gain to check low level detail and reverb tails, etc. while providing a good working range of adjustment and it should be very quiet, noise-wise, as well.

Brent

[PTLance]

What would the advantage of this be? Since we are all pretty used to analog pots, why was this put in instead? Is it better and something we should get used to? It is weird fading a song using that pot.

[Stan Cotey]

The primary advantage of this type of circuit is that the channel to channel levels are matched to within 0.1 dB at any position of the level control, which is obviously a step up from a multi-ganged analog control.

[AIllusion]

Thanks for the help!

Rex