Style: Djent, Mathcore, Progressive metal (Instrumental)
Recommended for fans of: Car Bomb, Meshuggah, Frontierer, Dillinger Escape Plan
Country: United States (New York)
Release date: 4 September 2026

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No one can say what it’s like to be sucked into a black hole, but it’d probably be a hell of a way to go out. The fundamental principles that govern our existence, basic physics and time, would fray and distort into the bizarre and unrecognizable. As you continue to fall towards the point of singularity, you’d experience spaghettification (a perfectly visual term for a horrific demise) as gravity crushes your body into a celestial meat noodle—joining an infinite hyperdense pasta formation at the void’s center. Where am I going with this? Car Bomb’s guitarist Greg Kubacki, known for his characteristic volatile mathcore djenty riffs, has a new instrumental project: Sun Guts. Following the project’s debut Kilonova, released earlier this year, he returns with another batch of reality-altering tracks in Supervoid: a sonic foray into an event horizon.

As self-described “ignorant instrumental mathcore for aliens”, Supervoid commonly disorients listeners from the expectations of traditional song structures and phrases with Kubacki’s unorthodox and unhinged guitar riffs. Without vocals to distract from the gravity-altering angular licks, there’s no diversion from the bludgeoning. Often, though, the album comes across as a self-indulgent display of Kubacki’s unique tone and volatile mathcore rhythms. There are certainly enticing moments in Supervoid, including: the Meshuggah-esque polyrhythmic stompings of “Supervoid” and “Redactor”, the infectious descending groove of “Serpent 36”, and the nu-metal-inspired pulsations of “Jaw Metal”, though these memorable bursts often come as interruptions to prolonged periods of Kubacki experimenting with ring modulation and frequency/pitch shifters. At first the novelty of the wild sounds is interesting, though it quickly diminishes into mundane. Tracks like “Concentrics” and “Earthset” feel less like actual songs and more like masturbatory displays of Kubacki’s gear that one would expect to see at a music equipment/gear convention like the NAMM show.

The spaghettification is real in Supervoid as phrases and guitar notes dramatically shift between being compressed into nearly indecipherable gurgles in a hyper-gravity microenvironment to being stretched as thinly as angel hair pasta. Kubacki sneaks in some déjà vu-inducing Easter eggs, like the call back to Pantera’s “Domination” breakdown in “Terminator Cross”. In between the baritone chugging, Sun Guts work in moments of acoustic passages that break up the off-kilter pummeling. These segments are mostly successful in enhancing Supervoid; the gentle section at the midpoint of the title track stands out as one the albums high points, falling apart though when the acoustic theme is transformed into a distorted monolithic garble. The ethereal interludes “Angels in the Iron” and “After You”, on the other hand, are uninteresting and don’t serve a purpose other than allowing the listener to come up for air and prepare for the next set of tectonic riffs. Though the gentle and atmospheric passages do add an element of sonic diversity to Supervoid, their impact is short-lived, quickly crushed from Sun Guts’ overwhelming distorted gravity.

Supervoid feels much longer than its thirty-four minute run time. This is the result of the monotony that sets in once the novelty of the “Bruuuuuuuum-duh-duh pewpewPEW” patterns wears off. By the time the closing pair of “Parasocial End Series” tracks come, listeners will likely find themselves seeking an end to the maelstrom. The dynamic swings that make up Sun Guts’ rhythm section would work in short bursts—a wild breakdown to spice up a track—but as the meat of Supervoid, result in an exhaustive listening experience. 

In Supervoid, Kubacki shows off his capacity to produce a wide range of inhuman guitar tones in a dazzling display of technicality. While he is clearly a master at using technology to develop a violent guitar attack that few can replicate, his ability to compile these passages into a unified album is lacking. Though if you ever have the urge to experience the auditory equivalent of falling into a black hole, look no further than Supervoid. I hope you like pasta!

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Recommended tracks: Terminator Cross, Supervoid, Serpent 36
You may also like: Growth, Pupil Slicer, Hypno5e, Convulsing
Final verdict: 5/10

Related links: Bandcamp | Facebook | Instagram

Label: Church Road Records

Sun Guts is:
– Greg Kubacki’s solo project