NSFW: show
The Landphil is my favorite of the bunch, and was therefore the first into the system... this resulted in LESS INFORMATION regarding this one. There's a lot of corners to explore, and it became apparent right off the bat that depicting the range would entail more pics than I care to note (because I've got to keep some sort of sense as to what's going on, and those three top knobs are difficult to photograph). PLUS the scope was acting up, so I had to re-range a few controls between this one and the rest.
Sharp excursions go hand in hand with high frequency artefacts, of which there are ample available (in addition to the rest, make no mistake - a cool pedal, and one I'll consider hunting out).
Here I am with all controls but master volume dumped.
I must say, line amplifier type circuits do present the biggest curves, and I guess it makes sense that distortion measurements rank higher with the loud clean stuff than the *apparently* loud dirty stuff.
More range, knobs apparent.
This one, with treble cranked provided the highest reading of the lot. I had to knock the o-scope down a click to keep from going off screen, and the meter reads a healthy does, closest to 10% of the bunch (again, still figuring this shit out!).
I think for meaningful measurements I need to balance the input/output levels, so all signal hitting the rig is equal. Higher distortion measurements in a lot of cases (especially the last one) are largely indicative of MORE VOLTAGE GAIN through the device - SO FAR THE LAST TIME, THIS IS NOT A SOLID MEASUREMENT
Thanks for having me! I think the Landphil might be winding up on my to have list, because it's such a different build than what is churned out of my own shop.