Watch It First
Every pedalboard needs a booster. Not the flashiest pedal in the world, sure.
The TC Electronic Spark Booster has been doing this job since 2012, and it’s still one of the most trusted names for players who want more volume without more noise.
I’ve had one bolted to my board on and off for years. Here’s why it keeps earning its spot.
What This Pedal Is Actually For
A booster sounds boring on paper. It’s just a volume bump, right?
Except it’s not that simple. A good booster like this one can push your amp into breakup earlier, add sparkle to a dull single coil, or just get you audible for a solo without you having to tap dance on your amp’s gain knob mid-song.
The Spark Booster gives you 26 dB of clean boost on tap. That’s a lot of headroom to play with, and way more than most boosters at this price offer.
Fat, Clean, or Mid â Pick Your Poison
There’s a three-way switch on this thing that changes the whole personality of the boost.
Clean mode just makes you louder, keeping your tone exactly as it was going in. Fat mode thickens things up with some low-end push, great for single coils that need beefing up. Mid mode scoops in the opposite direction, carving out room for solos to cut through a busy mix.
It’s a small switch that does a genuinely big job. Most boosters don’t even bother giving you this much control.
How It Sounds Through An Amp
I mostly use this in front of a tube amp, and that’s where it shines.
Kick it on for a solo and the amp just reacts. It’s not a gain pedal pretending to be a booster, it stays clean until you want it to breathe on the edge of breakup.
The Bass and Treble knobs aren’t just decoration either. You can actually shape the boost instead of getting a flat, generic volume jump like some cheaper boosters give you.
And because it’s true bypass, your tone doesn’t change one bit when the pedal’s off. No tone-suck, no weirdness, no compromise for the rest of your signal chain.
Build, Controls, and What’s In The Box
This is a solid, road-ready metal enclosure, the kind that survives being stepped on by a drunk bassist at 1am.
Power isn’t included though, which annoyed me the first time I unboxed one. You’ll need a standard 9V DC supply or a 9V battery, neither of which ships in the box.
Here’s the quick spec rundown:
- 26 dB of clean boost
- Bass and Treble EQ controls
- Fat / Clean / Mid voicing switch
- True bypass switching
- 9V DC or 9V battery powered (not included)
- On the market since 2012, still going strong
- 4.8 out of 5 from nearly 600 Thomann customer reviews
TC Electronic Pedals â Worth Sticking With?
TC Electronic has a whole ecosystem of pedals that punch above their price, and the Spark Booster is one of the more slept-on ones in that lineup. If you’re curious what else they make that’s worth your money, I rounded up my favorites in my guide to the best TC Electronic pedals.
It also sits nicely alongside something like the TC Electronic Sub’N’Up Octaver if you’re building out a board full of their gear.
There’s also a smaller, cheaper sibling called the Spark Mini Booster. It’s a fine little pedal, but it drops some of the tone-shaping control this one has. If you want the extra flexibility of Bass, Treble and the voicing switch, spend the bit extra and get the full-size Spark Booster.
What About Other Boost/Drive Options?
If you want more grit baked into your boost rather than a clean push, the Wampler Belle Overdrive is a completely different animal, worth a read if low-gain drive is more your thing.
Running a heavier rig? Check my picks for the best pedals for grunge rock. A clean booster like this actually works great stacked in front of a fuzz or high-gain distortion, pushing it harder without adding mud.
Who Should Actually Buy This
If your amp has a great clean tone but an OK-but-not-amazing lead tone, this fixes that gap instantly.
It’s also a great always-on pedal. Plenty of players, myself included, just leave a booster running quietly to add a bit of push to every note, all the time.
Pairing it with something like the Boss Katana 100/212 Gen 3 or any solid tube combo gives you a surprisingly versatile rig for not much cash at all.
If you’re chasing a multi-effects unit instead, the Zoom MS-50G+ covers boost duty too, just nowhere near as elegantly, and without a dedicated Bass/Treble pair.
A Few Honest Caveats
If you’re after a boost that also adds saturation or grit on its own, this isn’t that pedal. It’s designed to stay clean and transparent, so if you want dirt, you’ll need to pair it with an actual drive pedal.
Also worth knowing: some players find the Mid setting a bit too aggressive for subtle use. Clean mode is where I leave mine 90% of the time, saving Fat and Mid for specific songs.
The enclosure feels properly built for gigging life, but remember you’re buying the pedal alone. Budget for a proper isolated power supply if you don’t already have one, since daisy-chaining boosters next to noisy digital pedals can occasionally introduce hum.
So who shouldn’t buy this? If you’re already running a multi-effects unit or modeler with a built-in boost function you’re happy with, you probably don’t need a dedicated pedal on top. But if you’re running a simple analog board and want one reliable, do-it-all boost, this is hard to beat.
The Verdict
The Spark Booster isn’t going to reinvent your tone. That’s not the job it’s here to do.
What it will do is make everything you already own sound a little more alive, and give you an easy way to jump volume for solos without fumbling at your amp mid-song.
For the price, it punches well above its weight, and honestly, I think every gigging guitarist should own some kind of clean boost. IMO it’s one of those pedals you buy once and just never sell. Mine’s been through three different boards and it’s still on the current one.
