New Monolith THX Ultra subs offer reference level bass

posted on Monday, 23rd August 2021 by Steve May

THX  Subwoofers  home cinema 

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Just when you thought subwoofers had become too polite for their own good, US-based audio brand Monolith takes the wraps off two new THX Ultra-certified subwoofers. The 13- and 16-inch powered subs are designed for larger rooms, up to 3,000 cubic feet, certified to reach THX Reference Levels at a 3m viewing distance from the screen.

The 13-inch model is available now, while its 16-inch stablemate will follow in October.

The sub features a new high-excursion woofer, its hybrid cone combing long fiber pulp and fiberglass, the former bringing stiffness, the latter adding additional rigidity without onerous weight.

Providing muscle is a 2,000-watt (RMS)/3,800-watt (peak) Class-D amplifier, featuring a 48-bit Texas Instruments digital signal processor. This DSP allows Monolith to deliver a flat response from 16Hz to 250Hz, and maintain that accuracy at peak volume with minimal added distortion and artifacts, says the manufacturer.
Monolith Sub Cutaway THX Ultra (1)

The cabinet is high-density fiberboard (rather than MDF), internally braced, creating a sonically inert enclosure that won’t vibrate or add unwanted resonance. A trio of 100mm double-flared ports are used to minimise internal turbulence and maximise sound pressure levels at low frequencies. These ports allow the sub to operate in sealed, semi-sealed and ported configurations. Finishing touches include a non-resonant MDF floating grille, designed to maximize air flow of the woofer and ports.

The 13-inch model measures 605 x 515 x 740mm and weighs a reassuring 69.5kg.

Hobie Sechrest, Monolith Business Unit Manager, said: “With our new 13- and 16-inch subwoofers, we set out to reach an unprecedented new level of performance, while still offering the best value in the industry. With newly designed high-excursion drivers, 2,000-watt DSP amplifiers, and THX Ultra certification, these new subwoofers have well exceeded that goal.”

The 13-incher sells for a competitive $1,599.99 and is available online here. Details about the Monolith 16-inch THX Ultra-certified subwoofer are promised closer to availability.

Steve May

Inside CI Editor Steve May is a freelance technology specialist who also writes for T3TechRadarHome Cinema Choice, Trusted Reviews and The Luxe Review.

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