We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black cube wireless subwoofer with 12-inch driver visible behind dark grille

Klipsch

Klipsch FLEXUS-20-SUB 12 Wireless Subwoofer 2025

SKU CH-E0MZ-PECXS

A compact wireless subwoofer with a 12-in. driver reaching 26 Hz and 103.7 dB output for deep, room-filling bass

  • 12-inch driver produces deep bass down to 26 Hz
  • Class D amplifier reaches 103.7 dB maximum output
  • Wireless connection enables simple low-latency setup
  • Compact 15.25-inch cube fits discreetly in any room
  • Onkyo engineering combined with Klipsch acoustics for immersive sound

Compact Wireless 12 Subwoofer

The Klipsch FLEXUS-20-SUB is a compact wireless 12-inch subwoofer built to add deep, impactful bass to a home entertainment system. It targets viewers who want movie nights, gaming campaigns and television binges to sound fuller without running cables across the room. The wireless link keeps placement flexible while the 12-inch driver handles the low-end weight.

Class D Amplifier and 26Hz-250Hz Response

A Class D amplifier drives the 12-inch woofer across a frequency response of 26Hz to 250Hz, reaching a maximum acoustic output of 103.7 dB. The design aims for low-latency wireless transmission so bass stays in sync with on-screen action. Simple setup means the subwoofer can start working minutes after it is positioned.

Sleek 15.25-Inch Cube with USB-A Input

Each side of the enclosure measures 15.25 inches, giving a cube profile that fits beside furniture without dominating the space. A single USB-A input is provided on the rear panel for service or firmware updates. The wireless architecture removes the need for a dedicated subwoofer cable run, letting the owner place the unit wherever the bass response feels strongest.

Highlights

  • 12-inch driver produces deep bass down to 26 Hz
  • Class D amplifier reaches 103.7 dB maximum output
  • Wireless connection enables simple low-latency setup
  • Compact 15.25-inch cube fits discreetly in any room
  • Onkyo engineering combined with Klipsch acoustics for immersive sound

Specifications

No published specifications for this item yet.

Questions about this item

How do I pair the wireless subwoofer with my soundbar, and what is the step people often miss?

Power on both units, then press the pairing button on the subwoofer rear panel; the LED will blink rapidly. The step often missed is holding that button for at least five seconds until the light turns solid, confirming the low-latency link is locked.

What part of this subwoofer will need replacement first, and how can I delay it?

The Class D amplifier and 12-in. driver are sealed inside the 15.25-in. cube with no user-serviceable parts; the most likely long-term wear is the internal power supply capacitors. Keep ventilation clear around all sides and avoid sustained playback at the 103.7 dB maximum to extend their life.

At what volume does the subwoofer hit its limit during a long movie or gaming session?

The spec lists a max acoustic output of 103.7 dB; pushing near that level for extended periods will trigger the built-in protection limiter, reducing bass depth to prevent driver or amplifier damage.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.