If you leave the output transformer winding incorrectly terminated (ie. On the other hand, tube amps with output transformers become inefficient outside of their nominal impedance operating range.
Pro tools 12.7 input no signal full#
Solid state amps don't have a problem with driving higher impedance loads, they just get quieter as they can't usually drive high enough voltages to get the full power across to the speaker. That could eventually cause the amp output stage to fail. I don't know the circuit details of the Helix headphone output, but if it is not properly protected against short-circuit conditions, then it may end up driving excess current (beyond the rating of the output amp) into the load.
Unfortunately, that is not the experience of many other people including myself. But, it takes me a little longer than I'd prefer - especially compared to other tuners like the Turbo/Petersons/Polytune/Korg/Boss that I use or have used over the years.Ĭlearly you don't have any problems with the Helix tuner, and if you did, you'd probably mention that as an issue while you were beta testing the product. I can deal with the jumpiness because I can still get the guitar sufficiently in tune by guessing the median point as the bars jump around. But, I don't like to reset the guitar when checking tuning in the middle of a set. volume at 3/4, neck pickup, tone rolled back slightly) where it happens less than all knobs wide open. There's probably an optimal level and input filtration (eg. The Helix on the other hand is all over the place compared to the Peterson and the Turbotuner. The eye can easily track this and ignore the second - this doesn't happen on the Peterson, so I suspect it is internally trying to discriminate the signals internally prior to displaying the bars. As that happens, on the Turbo you can sometimes see two separate signals rotating around the display as the primary signal gets weaker.
I also tune to the attack, and don't wait 5 seconds for the vibration to completely settle - the longer you let it ring, the more the sympathetic vibrations from the other strings become visible. I still don't call this 'jumpiness' when tuning, as it's readily apparent the instability is in the strings and guitar, and not an artefact of the tuner. As you say, old strings seem to do this more than new ones, but probably because I always lube the nut and saddle when changing strings. When it 'jumps' around (usually a sudden small drop in frequency), it's almost always accompanied by the string slipping in the nut to whatever micro degree that happens. The Turbotuner being a full bandwidth display of the input signal is so smooth that I can instantaneously see the actual string change. Unlike the Turbo, the Petersons don't show the actual input waveform since they transform it into their sliding bar display. But, this might be due to overall sensitivity as I don't plug my guitar directly into either of these devices. It's slight 'jumpiness' is not just because it is 'stroboscopicaly' accurate. It's like the Petersons are trying to momentarily hold or discriminate the current input frequency as it gets close to zero (or too weak?) until a threshold is reached and then it resamples. They are sometimes also both a little 'jumpy' compared to a true stroboscopic display. I have the Peterson iOS App and also their little headstock tuner. It helps that the Turbotuner is instantaneous, with no frequency discrimination, hysteresis, or hold time between the input and the LED display ring. It might get to zero as it crosses the threshold for a 1/10th of a second or less while I'm spinning the knob. I can very quickly get to that point, as the 'ideal/optimal' tuning peg position is really all I'm after. When tuning quickly on stage, I just let it approach the 'zero' speed as it slows down in a predictable way to how much I turn the knob on the tuning peg. One amounts to 'what on earth is going on here', and the other is 'wow this tuner is so accurate I can see the movement of the string'.Ī strobe doesn't have to come to a full halt. If the tuner displayed the exact offset of the string instantaneously with a display bandwidth greater than the movement of the string/noise of the input signal, then it wouldn't 'jump' around, it would 'move' around. The issue with the Helix is only tangentially due to the increased granularity.