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Line Selector/Switcher Help?

They let you switch between separate loops of pedals without stepping on them individually (the pedals can stay on but they switched in and out of the signal path).
You can also blend effects and/or clean signal. Effects often sound different when running in parallel than when cascading into each other. Some pedals really need some clean signal blended in or they get too washed out in a band mix.
 
Yeah, it has two channels, A and B. You can have a signal path in each, but if you leave one unplugged it becomes a clean channel. Both channels have a level control.
The mode dial selects what you want the footswitch to cycle through: A/Bypass, B/Bypass, A/B/Bypass, etc.
The A+B/Bypass is for clean blend or running effects in parallel.

It does more stuff too, like acting as a mixer. Really handy tool.

The letdown for me is that you can't switch channels on/off individually - like A/A+B.
Also I'd like more channels, so I'm waiting on a Wounded Paw V4 Blender. [Invalid or Expired Link Removed]
 
The LS-2 is integral in my bass sound, such a great pedal. And, despite my other experiences with Boss products, I hear no amount of "hum" added in, so that's nice :)

My set up is:

Peavey BQuad5 -> Guyatone Micro Tuner -> EHX Tube EQ -> Boss LS-2 -> GK 1001RB-II

The Boss LS-2 loop is where it gets interesting:

"Creamy Dreamer" Custom Fuzz pedal (modded Russian Big Muff circuit, made for my band's guitarist to emulate Billy Corgan's sound but I appropriated it for myself) -> Morley Volume Pedal -> Boss DD-6 Digital Delay

I keep the above set up always on, with a ~70/30 blend, but generally have the volume pedal down to "contain" the fuzz. When I want a strings-like modulated affect I slowly step down on the volume pedal, then back. The delay is there to "catch" the sounds and carry them out, despite the volume pedal being choked down upon. I absolutely love this set up.

Currently looking to pick up A) another delay pedal to put after the Boss LS-2 for a subtle effect B) a nice reverb pedal to set after the fuzz pedal in the chain.

tl;dr, the Boss LS-2 is AWESOME. I generally prefer "clean" tones, so this set up is perfect for the purist in me.
 
Hi Guys,
Really struggling with this pedal can anyone help?
Need a really basic term description of how to set this baby up and what setting to use,
I'm wanting to get a blend of clean bass and effects,
I'm using the following effects pedals:
ProCo Turbo Rat (Distortion)
DigiTech Synth Wah (Synth/Envelope Filter)
Boss RC-3 (Loop Pedal)
Boss OS-2 (Overdrive)


Can someone please give me some help on how to set these up so they can blend with clean tone from my amp.

MUCH MUCH APPRECIATED!!!
 
Bass -> LS-2 input
Send A -> distortion -> filter -> OD -> Return A
Leave Send/Return B unplugged - this is your clean channel.
LS-2 Output -> RC-3 -> Amp

Turn on whichever pedals in Loop A you want to use. Set the LS-2 to A+B. Turn it on and adjust the A and B levels to get the clean/effects blend you want.