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The Monitor Audio RSW-12 is a compact, high-performance powered subwoofer featuring a 500-watt Class-D amplifier and a 12" front-firing C-CAM driver in a sealed cabinet. Designed for both music and home cinema, it offers 40-120 Hz variable crossover, 0/180-degree phase control, and three EQ settings (Music/Movie/Impact), delivering deep, tight bass in a compact form. It is housed in an attractive Rosewood cabinet, so unlike most subs--which kind of beg to be hidden--this one is pretty enough to display.This sub is in Very Good condition, with just a few nicks here and there (see pix) but it functions well, pumping out taut, crisp bass.Woofer: 12-inch C-CAM® (Ceramic-Coated Aluminum/Magnesium) high-excursion driver with 3-inch long-throw voice coil.Amplifier: 500 Watts (RMS) Class-D with switch-mode power supply.Frequency Response: 21Hz - 120Hz (typically), with 27Hz/21Hz (EQ1/EQ2) lower limits.Cabinet Design: Sealed (acoustic suspension) for precise bass, with internal bracing.DSP/EQ: Three pre-set modes: Impact, Movie, Music.Inputs: LFE (RCA), Stereo Line Level (RCA), 12V trigger (3.5mm jack).Weight: ~56 lbs (25.5 kg).Dimensions (incl. feet/grille): ~13.38 x 13.38 x 14.5+ inches. Key Features:Bass Control: Continuously variable low-pass filter (40–120 Hz)Phase Switch: 0 or 180 degreesConstruction: Heavy-duty, rigid cabinet with adjustable feet and spikes Service History: No service records were included from the prior owner. Here at the shop we did routine testing, cleaning and inspection.Cosmetic Condition: Overall we rated this at Very Good.In the Milwaukee Area? Stop in our shop to inspect/demoSee our feedback and thank you for considering. All the gear we sell is packaged with great care for safe arrival in the condition advertised.
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Monitor Audio, a British hi-fi mainstay, traces its origins to 1972 when founder Mo Iqbal established the company in a modest factory near Cambridge, England. Starting with hands-on loudspeaker assembly in a garage-like setting, it quickly professionalized, moving to Rayleigh, Essex, in 1976 for in-house manufacturing. This heritage of meticulous British engineering has endured through expansions, including a 2004 shift of production to China while retaining design leadership in Essex, alongside strategic acquisitions like Roksan in 2016 and Blok in 2019.
The brand excels in loudspeakers across diverse categories, from high-fidelity two-channel stereo models to advanced home cinema systems, architectural installations, outdoor speakers, and lifestyle solutions. Signature innovations like the patented C-CAM Gold Dome tweeters, introduced in the 1980s and continually refined, define its sound. Complementing these are amplifiers, streamers, and integrated audio systems, reflecting a broad portfolio that prioritizes proprietary driver technologies and precise enclosure design over peripheral gear like turntables or headphones.
Positioned as a mid-to-high-end powerhouse, Monitor Audio commands respect for delivering audiophile-grade performance at accessible price points, blending relentless innovation with timeless British craftsmanship. Over five decades, it has solidified its status as a global juggernaut, appealing to discerning buyers seeking refined, dynamic sound without boutique exclusivity or vintage nostalgia.
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