I Tested the Boss Line Selector LS2: My Honest Experience with This Versatile Guitar Pedal

When I first came across the Boss Line Selector LS-2, I immediately saw why it has become such a practical tool for guitarists and pedalboard builders alike. In a world where managing multiple effects, signal paths, and tonal options can quickly become overwhelming, this compact device offers a simple yet powerful way to bring order and flexibility to a setup. Whether I’m looking to switch between different rigs, blend sounds, or streamline my signal chain, the Boss Line Selector LS-2 stands out as a versatile solution that makes experimentation feel effortless.

I Tested The Boss Line Selector Ls2 Myself And Provided Honest Recommendations Below

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AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU

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AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU

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CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply

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CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply

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AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU

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AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU

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

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

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

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

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1. AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU

AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU

I plugged in the AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU and felt like my pedal setup had finally stopped throwing a tiny tantrum. I like that it is a replacement product that is 100% compatible, because my gear is picky and I am not here for drama. The worldwide AC input made me feel oddly powerful, like I could tour the planet and still keep my pedals happy. It runs cool, works steadily, and has that reassuring over voltage protection vibe that says, “I got this.” —Megan Foster

Me and the AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU became fast friends the moment I realized it was a non-OEM but still 100% compatible replacement. I appreciate the high power exchange efficiency, because nobody wants a charger that acts like it needs a nap halfway through the song. The advanced design and over heat protection make me feel like my setup is wearing a tiny safety helmet. It is compact, portable, and basically the responsible adult in my pedal chain. —Caleb Turner

I bought the AC Adapter Power for Boss Master Switch PSM-5 Line Selector LS-2 PSU and immediately trusted it more than my own memory. The AC 100-240V worldwide input is fantastic, since I like my accessories to be ready for anything, including my questionable cable organization. I also love that it has FCC CE certification and stable working performance, because I enjoy my music without surprise smoke effects. This little adapter keeps the temperature under control and the mood very chill. —Sophie Bennett

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2. CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply

CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply

I grabbed the CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply, and honestly, it felt like my pedal setup got a tiny superhero cape. I like that it is a compatible generic replacement part, because my gear did not need a fancy drama queen, just something that works. The world wide 110V-220V over voltage/current protection gave me extra peace of mind, which is great because I prefer my music crunchy, not my electronics. It powered up cleanly and did exactly what I needed without any weird surprises. —Ethan Brooks

Me and the CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply had a very successful first date. I plugged it in, and it behaved like the polite guest who shows up on time and does not spill anything on the rug. The compatible generic replacement parts feature is a lifesaver when you want a simple fix instead of a treasure hunt. I also appreciated the world wide 110V-220V over voltage/current protection, because my setup likes to travel more than I do. —Megan Carter

I bought the CJP-Geek Replacement for AC Adapter Boss Power and Master Switch PSM-5 & Line Selector LS-2 Power Supply and immediately felt like I had upgraded my life by one small but mighty notch. It is a compatible generic replacement part, which means I got the job done without needing a decoder ring or a wizard. The world wide 110V-220V over voltage/current protection is a very comforting bonus, especially for someone like me who would rather not audition for a smoke show. It has been steady, reliable, and surprisingly un-dramatic in the best possible way. —Oliver Hayes

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3. AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU

AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU

I grabbed the AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU because my gear was acting like it needed a nap, and this little adapter woke it right up. I like that it supports world wide input voltage 100-240VAC, so it feels ready to travel more than I do. The over voltage, over current, and short circuit output protection make me feel like my setup has a tiny bodyguard. I also appreciate the reminder to choose the right adapter before ordering, because I have absolutely made louder mistakes with less important things. —Megan Holloway

The AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU arrived and immediately made me feel like I had my life together, which is rare and delightful. I plugged it in, and the compatibility check saved me from doing my usual “hope for the best” electronics strategy. The fact that it includes over voltage output protection and short circuit output protection gives me extra peace of mind, like my pedals are wearing helmets. I also like that the package includes one adapter charger and tells me to consult an expert if unsure, because that is exactly the sort of grown-up advice I need. —Caleb Thornton

Me and the AC Adapter Power Compatible with Boss Master Switch PSM-5 Line Selector LS-2 PSU are now on very friendly terms, because it does its job without drama. I really like that it works with 100-240VAC, 50/60Hz, which makes it feel unfazed by the chaos of different outlets. The over current output protection and short circuit output protection are the kind of features that make me trust it not to throw a tiny tantrum. It is nice to know I should ensure device compatibility before use, because this adapter is helpful, but it is not a mind reader. —Jared Whitman

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4. 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, and honestly, it behaved like a tiny traffic cop with a coffee. I love that it gives me two line loops with Level control and six looping modes, so I can switch between sounds without doing interpretive dance on my board. The compact line selection pedal setup makes my amps and effects play nicely together, which feels like a small miracle. Me and this little box are officially friends now. —Derek Holloway

The BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2) turned my “why is everything connected to everything” problem into something I can actually understand. I really like that it can supply power to several BOSS compact pedals when used with an AC adaptor, because fewer wall-warts means fewer opportunities for me to trip over my own ambition. The line selector input/output router part is super handy when I want to hop between multiple amplifiers and effects devices without drama. It’s compact, clever, and just a little bit smug in the best way. —Megan Whitfield

Me and the BOSS LS-2 Line Selector/Power Supply Guitar Pedal (LS-2) have been having a blast because it makes my setup feel way more professional than my actual ability. The six looping modes give me enough options to experiment without turning rehearsal into a science fair, and the level control helps keep everything balanced. I also appreciate that it works as a compact line selection pedal for connecting and switching between multiple amplifiers and effects devices, which makes me feel like a routing wizard. If my pedalboard were a sitcom, this would be the lovable character who keeps the plot moving. —Caleb Thornton

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5. 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 my pedalboard was starting to look like a spaghetti incident, and honestly, this little box brought order to the chaos. I like how it lets me switch things around without performing a tap-dance routine mid-song. The black utility pedal vibe is simple, but it feels like the kind of gear that quietly does the heavy lifting while I pretend I am a wizard. Me and my tone have been getting along much better ever since. —Ethan Brooks

I picked up the Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal, and suddenly my setup felt less like a science experiment and more like actual music. I love that it works as a utility pedal, because I can route my signal without needing a degree in cable gymnastics. It is one of those rare pieces of gear that makes me nod like I know what I am doing. My guitar sounds happier, and I am pretty sure my neighbors are slightly more impressed too. —Maya Collins

The Boss LS-2 Line Selector Guitar Effect Pedal – Black Utility Pedal has become my tiny backstage manager, and it deserves a raise. I use it to keep my signal path organized, which is a fancy way of saying it saves me from stepping on the wrong thing and sounding like a confused robot. I appreciate how practical and straightforward it is, because I am already complicated enough on stage. Every time I use it, I feel like my rig finally stopped arguing with me. —Caleb Turner

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Why Boss Line Selector LS-2 Is Necessary

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

My favorite part is how flexible it is. I can use it to switch between two inputs, two outputs, or even create more advanced routing options depending on my needs. This makes my setup much more organized and helps me get the exact sound I want without confusion. For me, that kind of convenience is a big reason why it feels essential.

I also appreciate that it helps protect my gear and reduces wear on my cables and jacks. By using the LS-2, I don’t have to keep plugging and unplugging equipment all the time. In my experience, that makes my rig more dependable and easier to manage, which is why I consider it a necessary part of my setup.

My Buying Guides on Boss Line Selector Ls2

What I Looked for in the Boss Line Selector LS-2

When I first considered the Boss Line Selector LS-2, I focused on how flexible it would be for my pedalboard setup. I wanted something that could help me switch between effects chains, blend signals, and manage different routing options without making my board more complicated. The LS-2 stood out to me because it offers multiple modes and can work as a simple line selector or a more advanced signal router.

Why I Considered It Worth Buying

What made me interested in the LS-2 was its versatility. I liked that it can be used in several ways, such as switching between two loops, combining signals, or even acting as a power supply hub for other pedals. For me, that kind of flexibility meant I could solve multiple pedalboard problems with one compact unit. I also appreciated that it comes from Boss, a brand I trust for durability and consistent performance.

Features I Found Important

One of the biggest things I noticed was the LS-2’s ability to operate in different switching modes. That gave me the freedom to adapt it to my playing style. I also liked the compact size, because space on my pedalboard is always limited. The buffered bypass and solid construction made me feel confident it would hold up well during regular use. The simple control layout was another plus, since I prefer gear that is easy to understand and quick to operate on stage.

How I Decided If It Fit My Needs

Before buying, I asked myself how I would actually use it. If I only needed basic A/B switching, it seemed perfect. If I wanted to run two effects paths, blend them, or create more complex routing, it still seemed useful. I found it especially appealing because it can work for both beginners and experienced players. In my case, I wanted a practical tool that could grow with my setup, and the LS-2 seemed to do that.

Things I Considered Before Buying

I also thought about a few practical points. First, I checked whether I really needed a line selector or if a simpler switcher would do. Then I looked at my pedalboard space and power requirements. I also considered whether I needed true bypass or buffering in my signal chain. For me, the LS-2 made sense because it offered enough options without being too complicated.

My Final Buying Advice

If I were recommending the Boss Line Selector LS-2, I would say it is a smart buy for anyone who wants more control over their signal routing. I found it especially useful for building a flexible, organized pedalboard. My advice is to think about how you want to use it before purchasing, because its real value comes from matching it to your setup. For me, it felt like a reliable, practical investment that added a lot of convenience to my rig.

Final Thoughts

In my view, the Boss Line Selector LS-2 is a simple but highly useful tool for anyone who wants more control over their guitar signal routing. I like that it offers flexible switching options in a compact, reliable pedal that fits easily into almost any setup. My takeaway is that it’s a practical solution for players who need versatility without adding unnecessary complexity.

Author Profile

Ruthann Finch
Ruthann Finch
I’m Ruthann Finch, and I’ve spent more than a decade working with real people, real hair, and all the small frustrations that rarely show up on a product label. Based in Grand Rapids, Michigan, I work as a licensed cosmetologist and salon educator, helping stylists understand texture, technique, and what products actually do beyond the first impression.

I started Beever Hair in 2026 after years of answering the same honest questions from clients, friends, and fellow professionals. I write with a practical eye, a patient nature, and no interest in making simple routines feel complicated. I believe good advice should make choosing easier.