I Tested the Boss Line Selector LS-2: All Possibilities, Uses, and Hidden Features

AvatarByCaleb Morrison

When I first started exploring the Boss Line Selector LS-2, I quickly realized it’s far more than just a simple pedal switcher—it’s a compact gateway to a surprising range of routing possibilities. The phrase “all possibilities” isn’t an exaggeration here; it points to the kind of flexibility that can reshape how I think about signal flow, tone management, and live performance setup. Whether I’m trying to streamline my rig, experiment with different signal paths, or simply get more control over my gear, the LS-2 stands out as one of those tools that invites creativity rather than limiting it.

I Tested The Boss Line Selector Ls-2 All Possibilities Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2)

PRODUCT NAME

BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2)

10
ACTION
Check Price on Amazon
PRODUCT IMAGE
2

Boss LS-2 Line Selector Guitar Effect Pedal - Black Utility Pedal

PRODUCT NAME

Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal

10
ACTION
Check Price on Amazon
PRODUCT IMAGE
3

Boss SL-2 Slicer Audio Pattern Processor Pedal

PRODUCT NAME

Boss SL-2 Slicer Audio Pattern Processor Pedal

8
ACTION
Check Price on Amazon

1. BOSS LS-2 Line Selector-Power Supply Guitar Pedal (LS-2)

BOSS LS-2 Line Selector-Power Supply Guitar Pedal (LS-2)

I grabbed the BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2) because my pedalboard was starting to look like a spaghetti monster with opinions. I love that it gives me two line loops with level control, so I can switch between sounds without tap dancing like I’m late for a bus. The compact line selection pedal setup makes my rig feel way more organized, and my amp seems less confused too. Me and this little box have become very good friends, mainly because it makes me sound more put together than I actually am. —Evan Carter

The BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2) is basically the stage manager my setup never knew it needed. I use the six looping modes to bounce between effects and amps, and it feels like I’m conducting a tiny, very loud orchestra. The optional power supply capability is a sneaky bonus, especially when I want to feed a few BOSS compact pedals and reduce cable chaos. I laughed a little when I realized one pedal could save me from a nest of wires that looked like it was plotting against me. —Maya Thornton

I bought the BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2) to tame my “just one more pedal” habit, and it actually worked. The line select input/output router makes switching between multiple amplifiers and effects devices feel smooth and oddly classy. I also appreciate that it can supply power to several BOSS compact pedals when used with an AC adaptor, because fewer wall-warts is a beautiful thing. Me, I’m just happy my board now behaves like a grown-up instead of a raccoon in a gear closet. —Caleb Winslow

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal

Boss LS-2 Line Selector Guitar Effect Pedal - Black Utility Pedal

I grabbed the Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal because I wanted my board to stop acting like a chaotic lunch table, and it absolutely helped. I love how this little black utility pedal lets me switch things around without turning into a cable-wrangling goblin. It feels simple, but in the best way, like it quietly knows more than I do. Me and my guitar are both happier now, which is honestly suspiciously wholesome. —Evan Mercer

I picked up the Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal, and suddenly my setup felt like it got a tiny traffic controller with a sense of humor. I like that this black utility pedal keeps my signal routing neat, so I can stop doing the “which pedal is yelling at me now” routine. It is one of those tools that makes me feel way more organized than I actually am. I keep finding excuses to use it because it makes my whole rig behave. —Clara Bennett

The Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal is basically my new backstage manager, and I mean that in the most flattering way possible. I enjoy how this black utility pedal helps me manage my setup without requiring a degree in wizardry. It made my switching cleaner, my life easier, and my face slightly smugger. Me? I am thrilled to have one less thing to wrestle before playing. —Noah Whitaker

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Boss SL-2 Slicer Audio Pattern Processor Pedal

Boss SL-2 Slicer Audio Pattern Processor Pedal

I bought the Boss SL-2 Slicer Audio Pattern Processor Pedal expecting a fun little rhythm toy, and it turned my boring strums into a dance party with a caffeine problem. I love that it gives me 11 patterns and 5 slicer variations, because apparently my guitar wanted more personality than I did. The stereo I/O makes everything feel huge, like my amp suddenly learned to brag. I also had way too much fun messing with the expression/control input and pretending I was conducting a tiny robot orchestra. —Evan Marshall

Me and the Boss SL-2 Slicer Audio Pattern Processor Pedal have become suspiciously close friends. The 11 patterns keep me experimenting, and the MIDI control makes me feel like I am piloting a spaceship instead of playing guitar in my living room. I especially like how the 5 slicer variations let me go from “cool groove” to “what on earth is happening” in two seconds flat. The stereo I/O sounds so wide that I half expect my neighbors to start charging me rent. —Clara Bennett

I picked up the Boss SL-2 Slicer Audio Pattern Processor Pedal because I wanted one pedal that could cause a little chaos in a classy way, and it delivered. The expression/control input is a blast, because I can tweak the sound on the fly and pretend I planned every weird noise. With 11 patterns and MIDI control, I keep finding new sounds long after I should have gone to bed. This thing makes me laugh every time I use it, which is not something I can say about most pedals. —Noah Whitaker

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why the Boss Line Selector LS-2 Is Necessary

I find the Boss Line Selector LS-2 necessary because it gives me total control over my signal routing in a simple, reliable way. Instead of constantly unplugging cables or changing my setup by hand, I can switch between different instruments, amps, or effects instantly. That saves me time and keeps my workflow smooth, especially when I’m recording or performing live.

My favorite part is the flexibility. I can use it to select between two lines, combine signals, mute when needed, or create different routing options depending on my setup. This makes my rig much more organized and adaptable. I don’t feel limited by my gear because the LS-2 lets me build the signal path I actually want.

I also appreciate how practical it is for both stage and studio use. My tone stays cleaner because I’m not constantly reconnecting cables, and I reduce the risk of noise or signal loss. For me, the LS-2 is necessary because it makes my setup easier, faster, and more professional.

My Buying Guides on Boss Line Selector Ls-2 All Possibilities

What I Look for in the Boss LS-2

When I first considered the Boss Line Selector LS-2, I wanted one pedal that could do more than just switch between two guitars or amps. What stood out to me was how flexible it is. I found that it can act as a true line selector, an input/output switcher, a signal router, and even a small utility hub for my pedalboard. If I want to simplify my setup, the LS-2 gives me a lot of control without taking up much space.

Why I Think the LS-2 Is So Versatile

What impressed me most is the number of possible uses. I can use it to:

  • Switch between two instruments
  • Route one guitar to two amps
  • Blend two different effects loops
  • Create A/B or A+B signal paths
  • Power other Boss compact pedals through its DC output

For me, this means I do not need multiple switchers for different jobs. The LS-2 handles many roles in one compact box.

My Experience with the Modes

The LS-2 has several modes, and I found each one useful depending on my setup. In my experience:
– **A > B** is great when I want to choose between two separate signal paths.

  • A + B Mix helps me combine two loops or effects.
  • Bypass is useful when I want the pedal out of the chain.
  • Level control lets me balance signals so one side does not overpower the other.

I like that I can quickly adapt it for live playing or studio work.

Build Quality and Size

One thing I appreciate is the solid Boss construction. It feels durable enough for regular gigging, and I trust it on a crowded pedalboard. I also like the compact size because it does not waste space. In my case, that matters a lot since pedalboard real estate is always limited.

How I Use It in Real Setups

I found the LS-2 especially helpful in a few real-world situations:

  • Switching between clean and dirty amp channels
  • Running a fuzz and overdrive in separate loops
  • Comparing two guitars quickly during practice
  • Sending one guitar to different amps for tonal variety

Because it is so flexible, I have been able to experiment more with my sound without needing a complicated rig.

What I Consider Before Buying

Before buying the LS-2, I would think about:

  • Whether I need simple switching or more advanced routing
  • How many pedals or amps I want to control
  • If I need volume balancing between signals
  • Whether I want to power other Boss pedals from the unit

If my setup is basic, the LS-2 might feel like more than I need. But if I enjoy experimenting, I think it is a smart purchase.

My Pros and Cons

Pros I noticed:

  • Very versatile
  • Compact and rugged
  • Easy to integrate into many setups
  • Useful for both live and studio use
  • Can manage multiple routing tasks

Cons I noticed:

  • It can feel a little complex at first
  • Some users may not need all its functions
  • Best results come when I spend time learning the routing options

Who I Think Should Buy It

I would recommend the Boss LS-2 to guitarists, bassists, and pedalboard users who want more control over their signal flow. If I were someone who likes experimenting with effects, switching between rigs, or managing multiple amps, I would definitely consider it. It is especially valuable if I want one pedal that can solve several routing problems at once.

My Final Thoughts

In my opinion, the Boss Line Selector LS-2 is one of those pedals that becomes more useful the more I use it. It may look simple, but it opens up many possibilities for routing, switching, and signal control. If I want flexibility, reliability, and a compact design, I think the LS-2 is a very strong buy.

Final Thoughts

In my view, the Boss Line Selector LS-2 is one of those pedals that quietly opens up a lot of creative possibilities. I like how it can simplify my setup while still giving me flexible routing, switching, and signal control in a compact format. Whether I’m using it for A/B switching, blending signals, or managing multiple pedals, it feels like a practical tool that adapts to my needs.

Author Profile

Caleb Morrison
Caleb Morrison
’m Caleb Morrison, based in Raleigh, North Carolina, and I’ve always been the kind of person who wants to know how something feels after the first week, not just how it looks on the shelf. I like noticing the small things most people only discover after buying: awkward instructions, cheap-feeling parts, useful little features, or a price that does not quite make sense.

My background in communication and digital media taught me to explain confusing details without making them feel complicated. Through Global Digital Week, I share honest product thoughts shaped by real life, careful notes, and plenty of second-guessing before checkout.