Thump15Sv4

The Thump15Sv4 is a 15" powered subwoofer that adds the low end a full-range PA cannot produce on its own. A 1400W Class-D amplifier feeds a 15" woofer for 132 dB peak SPL and response down to 27 Hz, which is where complex basslines and kick drums stop being heard and start being felt. Connection is straightforward: stereo XLR inputs take your source, stereo high-pass XLR outputs feed your loudspeakers with the lows removed so the tops work less and stay clean, and stereo full-range XLR outputs with a mono button let you chain more subs. Selectable high-pass modes match the crossover point to the speakers you actually own, a phase invert switch corrects cancellation from sub placement, and a fully mutable level control lets you pull the sub out of the mix without touching anything else. Protection covers peak and RMS limiting plus power supply and amplifier thermal protection, with front LED, high-pass mode, and signal/overload indicators on the panel. The universal switch-mode supply runs on 100 to 240 volts with integrated PFC. Built-in ergonomic carry handles help with a 57.4 lb cabinet, and an M20 thread accepts the SPM400 speaker pole (sold separately) so a top box mounts directly above the sub. Note that Thumpv4 subwoofers are floor units: they have no rigging points and must not be suspended or pole-mounted themselves.