JTR Speakers Captivator S2 vs Monoprice Monolith 16 THX Ultra

Short answer: both are discontinued, so this only matters if you are buying used. Used, the JTR Speakers Captivator S2 is the better pick: it ranks #9 of 143 subwoofers by sound quality (rated 4.5/5), against #19 (rated 4.4/5) for the Monoprice Monolith 16 THX Ultra. If you want one new, the JTR Speakers Orbit Shifter PRO ranks #1 at $4,499.

Buy the JTR Speakers Captivator S2 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the JTR Speakers Orbit Shifter PRO instead.

Looking for alternatives? See the complete Subwoofers rankings.

Prices on this page were last checked October 15, 2026 at 5:41 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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