Сабвуферы — Polk Audio Signature Elite ES10

The Signature Elite ES10 is the 10-inch powered subwoofer in the Signature Elite series from Polk Audio, a company now owned by Masimo. Polk pitches it at midsize home theater and music systems and at multi-use spaces, and lists it at USD 699 in the United States. The styling follows the low-profile look of the rest of the Signature Elite range, and the only finish offered is black.

Key specs that matter

Polk fits a front-firing high-excursion long-throw woofer with a mineral-filled polypropylene cone, powered by a 200 W Class D amplifier. Polk quotes the -3 dB response as 28 Hz to 250 Hz and the -10 dB limits as 22 Hz and 375 Hz. Low-pass adjustment spans 50 Hz to 160 Hz, and phase moves from -135 to 180 degrees in steps of 45 degrees. Inputs are one LFE RCA socket and a stereo pair of line-level RCA sockets, so there are no speaker-level terminals. The cabinet measures 438 mm high, 331 mm wide and 419 mm deep, and the unit weighs 17.7 kg.

Engineering and use context

Signal handling runs through a DSP stage working with 32-bit floating point arithmetic. Polk calls its phase feature Time-Smart Phase Control, which gives eight discrete positions so the timing of the sub can be lined up with the main speakers. A fourth-order filter slope sets how steeply the output rolls off above the chosen frequency. The acoustically optimised enclosure has internal bracing developed with finite element analysis to limit panel resonance, and it breathes through two Power Ports, Polk's name for its port design. Because both the woofer and the ports work from the front, and the cabinet is narrow, Polk says the ES10 can stand against a wall or go on a shelf rather than needing open space behind it. A power saving mode senses the incoming signal and puts the amplifier to sleep when nothing is playing, and the grille can be removed.

Pairing

The LFE input suits AV receivers and processors with a dedicated subwoofer output. The stereo line inputs take a preamplifier or integrated amplifier with RCA pre-outs, making the ES10 usable in two-channel setups as long as the amplifier provides such an output. Polk frames the ES10 as the answer for medium to large rooms, and its styling is designed to sit beside the bookshelf and floorstanding speakers of the same Signature Elite line.

Alternatives

The Polk Signature Elite ES8 is the compact 8-inch subwoofer of the same series, driven by a 100 W Class D amplifier and weighing 12.6 kg.