bruno lorso

Rev 6.6 is the last revision of my signal path, or fx chain, if you prefer. changes from 6.5 have brought a new point of entry (Lehle Volume Pedal instead of Strymon Riverside) and the swap between Strymon OB-1 and Darkglass Electronic B7K-Ultra. on this last one, its DI-out now drives the second track of t.c. electronic Level Pilot pot, which allows two different “instrument amplifiers” to feed a central, mono source, instead of only one. 

as i’ve recently traded the Fender GB Twin in exchange for my old Fender Princeton Reverb ‘65 Reissue, this new audio path and gain structure brings forth a much more silent fx chain, with much reduced noise-floor, and a hiss hardly noticeable even at very short distance and with windows shut, at night. 

all of this would have been in vain without the Lehle P·Split’s transformer and polarity switch, as two amps with same unbalanced signal are indeed prone to hum, and must be time-aligned to the other pair of speakers fed by the stereo portion of this board (starts with the Eventide H9, as shown in the diagram). 

it’s just blind luck on the dimensions of my playstation, but polarity reversal at P·Split (whose output is indeed fully balanced, or better put, transformer-balanced) makes all speakers sum at the player’s stool: without it, distance between the two pairs made quite an effective cancellation of low end (which spoiled the effect of half-speed, half-pitch looper placed at the chain’s start side, too).