Your Spark Amps Just Got Stage-Ready
If you've been building tones on a Spark 40, Spark MINI, or Spark GO and wondering how to bring them to a rehearsal or gig without starting over from scratch, the Positive Grid Spark CAB is a pretty direct answer. It's a 140-watt powered FRFR cabinet built to work seamlessly with Spark series amps — plug in via the dedicated 3.5mm input and your tones come through exactly as you dialed them in, just a whole lot louder.
FRFR stands for Full-Range, Flat-Response, which means the cabinet isn't adding its own color the way a traditional guitar cab with a voiced speaker would. What goes in is what comes out — a useful quality when your amp modeling or multi-effects unit is doing the heavy tonal lifting. That makes the Spark CAB a natural fit not just for Spark amps, but for any digital modeler or processor with a line-level output.
If you've got a pedalboard full of modeling gear that sounds great through headphones but hasn't found a good live output yet, or you're a Spark user who wants more stage presence, this cabinet is worth a close look.
Power and Sound Reproduction
Inside the Spark CAB is a built-in 140-watt Class D amplifier driving a 10-inch woofer and two 1-inch high-frequency dome tweeters. The bass reflex cabinet design helps extend low-end response, and the full frequency range stretches from 45Hz to 20,000Hz — wide enough to handle electric, acoustic, and bass guitar tones without running out of headroom at either end.
At its peak, the cabinet can hit 120dB SPL measured at one meter, which puts it in territory comparable to many traditional guitar amplifiers used in live settings. That's meaningful headroom for rehearsal, smaller venues, or stage monitoring use. Players who need an FRFR solution that can actually keep up with a band will find the output level credible.
Connectivity — More Than You'd Expect
The back panel is well thought out for a cabinet in this class. There's a dedicated 3.5mm stereo input specifically for Spark series amps, two mono XLR/TRS combo inputs for connecting other gear like modelers or dynamic microphones, and a balanced mono XLR output for routing to a front-of-house PA or chaining to a second Spark CAB. A contour switch boosts lows and highs for better balance at lower listening volumes, and a ground lift switch helps eliminate hum from grounding issues in live environments.
The cabinet also includes DC and USB-C power outputs, so you can power your Spark amp, phone, or tablet directly from the CAB — no extra power cables or power strips required for your Spark rig. That kind of integration is genuinely convenient when you're setting up quickly at a gig.
Build and Portability
The enclosure is built from MDF with a Tolex cover and grille cloth that matches the aesthetic of Positive Grid's Spark amplifier line. Two recessed carry handles on the sides make it manageable to move, and the cabinet's dimensions keep it compact enough to fit in a back seat or trunk without a struggle. At just under 30 pounds, it's portable for a cabinet with this output capability — not featherweight, but not a two-person job either.
One practical note: the Spark CAB is designed for use with modeling processors and line-level outputs. It is not compatible with traditional tube amp heads or passive speaker-level outputs — plugging a tube amp's speaker output into it could damage both units. Keep it in the signal chain where it belongs: after your modeler or Spark amp's line output.
Product Features:
- Format: 1x10 powered FRFR closed-back cabinet
- Power: 140W RMS (400W peak) Class D amplifier
- Speakers: 10-inch woofer + two 1-inch (25mm) high-frequency dome tweeters
- Frequency range: 45Hz–20,000Hz
- Max SPL: 117dB RMS / 120dB peak (measured at 1 meter)
- Dedicated 3.5mm stereo input optimized for Spark series amps
- Two mono XLR/TRS combo inputs for modelers and line-level sources
- Balanced mono XLR output for PA or second Spark CAB
- DC and USB-C power outputs to charge/power Spark amps and devices
- Contour switch and ground lift switch on rear panel
- MDF construction with matching Tolex cover and grille cloth
- Two recessed side handles; weight: 29.76 lbs (13.5 kg)
Brand: Positive Grid
Model: Spark CAB
SKU: SPARK CAB
Condition: New
Since 1872, C.A. House Music has been helping musicians across the Ohio Valley find the right gear -- with real advice from a team that actually plays. We're your authorized dealer of all the big names in guitars, keyboards, band instruments, drums, pro audio, and more. With four family-owned and operated locations in Ohio and West Virginia (plus a full online store), you don't have to go far for instruments, lessons, rentals, and repairs. No matter your musical needs, our team of musicians wants to help you Play Music for Life.
