Boss SY-1 Guitar Synthesizer Pedal

I bought this because my band doesn't have a keyboard player and there are key spots in some songs where some soft orchestra music would be very beneficial. This fits the bill beautifully. By adding an expression pedal I'm able to fade the effect in and out as needed. The sounds are very authentic and high quality. Realistically it only has about three sounds that I'll for the kind of music that I do, but I feel confident that there's something in there for everyone. I used it at our last jam session and it was the star of the show. At least one of the people who heard has ordered one and I'm sure there will be more. I'm very happy with this purchase.

Boss may be pricey, but the build quality is renowned. There are over 90+ effects you can have on this one pedal and it's been a real game changer. A definite "must-have" for your pedal board. The design is pretty self-intuitive.

I have been using many of their products for years. This one works great!! Simple to set up and operate and for me that is so valuable. I highly recommend!!

I really struggled with my final rating for the BOSS SY-1 Synthesizer pedal because while it does have a few shortcomings that warrant the 4-star rating, it's also an incredibly advanced (and compact) piece of effects circuitry and a lot of fun!When it comes to the basic concept of the SY-1 and technical execution thereof, the SY-1 is a 5-star product. Pretty much since the birth of MIDI (or the development of analog synths prior to that), there have been efforts to translate guitar playing inputs into real-time synthesizer tones. Many of these early efforts were plagued by horrible tracking (meaning that the synth note sounded does not correspond to guitar note played), latency, and unwieldy or expensive setups. The BOSS SY-1 suffers from virtually none of these problems. It fits into the familiar compact BOSS pedal footprint, has only a few control parameters promising just over 100 different synth tones, and the note tracking is stunningly fast. Even more impressive (and setting it apart from recent synth pedals from EHX and others), the note tracking is polyphonic, meaning that you can sound pads and other synth tones using chords, as long as you don't get too complex.It's really quite amazing how the SY-1 will completely transform the sound of your guitar or bass into a completely different instrument. I've had hours of fun already messing around with a looper and layering different sounds and note combinations on top of each other. You can suddenly create soundscapes (or approximate them, at least) that previously might have led you to pull out a synthesizer and laptop DAW.Where the SY-1 starts to run into a little bit of trouble, however, is in the types of sounds offered and limited control over sound shaping. My knowledge of actual synthesizers is pretty limited, but ADSR (Attack, Decay, Sustain, and Release) is a critical aspect of sound design, and one completely lacking in the SY-1. You can pick lead, bass, etc. preset from the SY-1, but then the only option you have to modify that is to adjust the tone (basically a low-pass filter, but very useful), and then the Rate/Depth of the waveform. So you have no control over whether your notes are punchy/percussive versus slow-building/swelling. In fact, my primary complaint about the bass sounds and may of the lead sounds is that while the note-tracking technology seems almost instantaneous, the actual resulting sound has a built-in attack that cannot be modified. And many of those notes sustain and cannot be cut off abruptly, even when palm-muting. Perhaps part of this is user error, and there are playing techniques you can develop to get more out of the pedal.Also, I really wish we could have gotten 1/4 to 1/2 as many of the bell and sound FX pages in exchange for additional "banks" of lead, bass, or pad sounds. I'm not sure how many users set up a $200 FX pedal in their signal chain just to make an explosion sound or whatever, and do nothing else until you change the settings. An entire bank of the Lead sounds, and several of the Bass ones involve musical fifths - those are certainly useful in a lot of synth context, but completely unusable in others, and I would have liked a wider variety of sounds instead of a half-hearted harmonizer feature.Finally, it should be noted that the pedal does not have MIDI, and there are no presets, so if you do find a particular sound that you like and want to come back to, you'll need to bend over and twist the knobs until you have it. That's pretty limiting in a live context.I am not sure of my complaints are fair or realistic given the price point and form factor, but I think they need to be known by prospective buyers of this pedal. This effects pedal is NOT a full-on substitute for a standard synthesizer. But it's a TON of fun, and I like to give extra credit for effects pedals that offer sounds I simply can't get from anywhere else. I can imagine ambient or praise & worship having a field day with this one, especially the pads, which are quite good and can be used with the Sound Hold feature (holding down the switch locks in and sustains the sounds, similar to the feature on the BOSS Tera Echo). The SY-1 is an amazing piece of technology that I could see growing increasingly fond of the longer I have to work with and adapt to its quirks.UPDATE (03/24/21) - I've owned the SY-1 for just over a year following the review above. My impressions of it are largely unchanged. What I will say is that are something it does quite well, and some things I have not been able to get it to do. Polyphony is great, and the note tracking (even on accurately-played chords) is great for pads, strings, etc. It can do some leads. But the sounds are just presets, and very...BOSS.I'm looking at the Source Audio C4 Synth, which is a very different take on a synthesizer pedal. It uses monophonic tracking, but has a much better emphasis on bass notes and single-note leads. It also has a robust online/mobile editor with community presets. I can't actually say that one looks "better" than the other, but I think they could complement each other quite well.

The Boss SY-1 is absolutely fantastic – as long as you like at least some of the 121 presets. Just plug it in and get playing! It takes five seconds to learn how to scroll through the sounds, and maybe two minutes to learn what the parameter dials do. Here’s what you need to know, right out of the box: Effect, the smaller knob on the left, is the volume for the synth signal – turn it down if the synth effect is too loud. Direct, the larger knob on the left, is the volume for the source signal (your guitar, or whatever). Use these two together as your mixer.Most of these sounds are too 80’s synth-y for me, and there are some in the SFX and SEQ sets that I wouldn’t touch with a ten-foot pole. That’s perfectly OK though, because there are at least twenty voices that I really like – Bell 7, plus reverb and chorus from my pedalboard, is my favorite voice for chords.There’s really nothing to dislike about the SY-1 (unless you dislike the sounds). What it doesn’t do – and why I’ll probably upgrade to the SY-200 – is save your settings. Switching sounds means changing parameters, most of the time. For the price though, you won’t do any better. It’s a Boss, which means as long as you don’t drive over it with a truck or drop it from the Eiffel Tower, it’ll last forever.Update: I upgraded to the SY-200, and whoa Nelly it's worth the extra hundred bucks. Fifty more voices, including decent rotary organ voices (better than the SY-1), and the ability to save your presets.

I can play keys okayish, but I'm mainly a guitarist and bassist. I use synth and guitar on a lot of the music I do, and I've always wanted a simple solution to switch between synth tones and guitar. I've tried several types guitar synths, and none of them have had a good combination of versatility, tone, and easy of use. This pedal does close everything I'd need it to and it's small and compact.Sure, some of the sounds are more convincing/all around better than others, but in the mix, it barely matters. Additionally, the ability to use it inline with other effects so easily smooths over a lot of the minor deficiencies you might find.Also, I'd say it's better for bass than guitar, but great for both. You can get some great classic synth bass sounds out it with relative ease.The worst thing about it is it has so many sounds and so much versatility that you might need to develop some way to mark down what you're doing to get the tones and sounds you like the most!Definite give it a shot, especially if you're a bassist in a band that needs some occasional synth bass sounds!

Doesn’t work, the light turns on but isn’t functional.Also came with an instruction paper from a different product

I bought this as a gift for someone and they liked it. Boss pedals are usually a little expensive but work well and last.