Old Blood Noise Endeavors Signal Blender Stereo

OBNE takes parallel signal routing to the next level!

Old Blood Noise Endeavors teams up with 29 Pedals to bring you the Signal Blender Stereo — a high-headroom, phase-coherent, stereo parallel mixer designed to handle complex effect routing with ease.

More than just a stereo signal blender, this pedal is a versatile problem-solver. It can serve as a stereo parallel effects mixer, a 1-to-3 splitter, or a 3-to-1 combiner, making it an invaluable tool for creative routing on any pedalboard.

Each channel — Clean, Loop A, and Loop B — has its own level control and footswitch, allowing you to blend and engage them on the fly. Trails switches let time-based effects in the loops decay naturally after bypass, while individual phase-invert switches for each loop help eliminate phase cancellation issues.

The Signal Blender Stereo offers stereo TRS input/output (with mono TS compatibility) and an internal “MISO” switch for splitting a mono input into stereo outputs. True Bypass mode engages when all loops are disengaged, and soft-touch switching keeps operation quiet and smooth.

For modern setups, MIDI control is onboard, allowing remote toggling of loops and trails. Internally, the pedal runs at ±15V for massive headroom and clean signal handling, powered by a standard 9V DC supply.

If you’ve ever wanted total control over your signal flow — whether blending clean tones with effected ones, running parallel stereo chains, or splitting and recombining — the Signal Blender Stereo delivers with studio-grade precision and unmistakable OBNE flair.

Old Blood Noise Endeavors Signal Blender Stereo Features:

• Stereo parallel mixer for combining and blending Clean, Loop A, and Loop B signals

• Designed in collaboration with 29 Pedals

• Works as a stereo parallel mixer, 1-to-3 splitter, or 3-to-1 combiner

• Individual level controls and footswitches for Clean, Loop A, and Loop B

• Trails switches for allowing time-based effects to decay naturally after bypass

• Phase-invert switches for each loop to correct phase alignment issues

• Stereo TRS input/output with mono TS compatibility

• Internal MISO switch for mono-to-stereo splitting

• MIDI control for toggling loops and trails

• True Bypass when all loops are disengaged

• Soft-touch footswitches for quiet operation


• Internal ±15V operation for increased headroom and clarity

• Power: 9V DC

• Current Draw: 500mA

• Dimensions: 5.5" × 4.75" × 2.75"