Alto TS18S 2500W Subwoofer

Updated August 18, 2026

Lot number	166m
Auction	Overstock Product Liquidation Calhoun 08/25
Date	August 25, 2026 at 6:00 PM EDT
Auction house	ATX Auctions Calhoun
Location	Calhoun, Georgia

Notes: There is several scratches and scrapes throughout item, as well as sticker residue at the top Unable to test Speaker only, no cords or anything See photos Condition: New - Cosmetic Flaws Damaged?: Yes Damage Description: There is several scratches and scrapes throughout item, as well as sticker residue at the top In Packaging?: No Missing Parts?: Yes Missing Parts Description: Speaker only, no cords or anything Functional?: Unable to Test Brand: Alto UPC: 816311012126 For tight, punchy low-end look no further than the Alto Professional TS18S powered subwoofer. When added to full-range speaker setup, the TS18S subwoofer delivers powerful but controlled low-end presence to PA configuration for a full and complete listening experience for the modern public music space. With a powered subwoofer, any musical performance will take a giant leap into the realm of tonal balance with the perfect blend of hi, mid and extended low-end frequencies.The Most Powerful Subwoofer YetSound reinforcement needs can change from night to night but the best in the business count on reliable power whenever it's needed. The TS18S is Alto Professional's most powerful subwoofer yet, packing an incredible 2,500 watts of power to make concert halls come alive, night clubs punch and pump, houses of worship lift-up instrumental performances and more. Thanks to its high-efficiency Class D amplifier, TS18S adds the necessary heft and weight to any public performance for a balanced representation of musical artistry in any environment.Carefully Built for Quality PerformanceA structure is only as good as its foundation and sound is no different. The TS18S subwoofer is built with reliable durability in mind to be the anchor of setup and the anchor of sound. Built with superior materials, the TS18S is engineered with a premium internally braced composite cabinet enclosure for tight, controlled sound. Enjoy all the thump and bump without the unnecessary rumbles and rattles. The key to low-end is clear definition for impactful sonic transmission and a carefully crafted enclosure ensures a truly unbiased sound delivery. With a premium 18" driver featuring a 3", voice coil transducer, rest assured, the TS18S subwoofer is built to handle the rigors of live performance whether permanently installed or as part of a traveling setup, night after night.A Subwoofer for Any SettingThe TS18S is designed and engineered to fit into any system thanks to the versatile onboard electronics switches. Quickly bounce through the User-selectable EQ tunings to enable, boost or bypass low end accentuation appropriately as different shows require. Use the intuitive Phase Alignment function as needed to make sure tops and subs perform well no matter the setting or setup. With dedicated input and output paths, seamlessly connect companion Alto full-range loudspeakers or any other standard loudspeaker units. Highlights: High-efficiency Class D amplifier 18" driver with 3" high-temperature voice coil Rugg

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