Klipsch The Nines II Hi-Fi Bookshelf speaker Red Oak

Klipsch The Nines II Red Oak: Flagship Powered Stereo with Dolby Atmos

The Nines II Red Oak is the flagship of Klipsch's Heritage Inspired powered speaker series, built for listeners who want full stereo imaging, deep bass, and immersive decoding without a separate AV receiver. Each cabinet pairs an 8" (203 mm) Cerametallic woofer with a 1" (25 mm) titanium LTS tweeter in a Tractrix horn for a 90° × 90° dispersion pattern. Onkyo-designed electronics handle Dolby Atmos and DTS:X decoding, Dirac Live room correction, and a 24-bit/96 kHz DAC. The Nines II Red Oak is the right choice for music lovers, movie watchers, and home studio owners who want a single pair that replaces a stack of separates.

What Sets the Nines II Apart

Two features are exclusive to the flagship model. Balanced XLR inputs put the speakers in studio-monitor territory, letting professional sources connect directly while rejecting noise on long cable runs. DTS:X decoding with Virtual:X joins Dolby Atmos for full compatibility with both major immersive audio standards. The new one-piece BMC baffle is denser and more rigid than the previous MDF baffle, killing unwanted resonance while the curved radius widens off-axis response.

Driver Design and Amplification — Room-Filling Output

The 2-way design pairs Klipsch's horn-loaded tweeter with a long-throw Cerametallic woofer, both tuned for high efficiency and low distortion. Bi-amped Class D amplification drives each driver with a dedicated ultra-low-noise amplifier, reaching 107 dB SPL at 1 m.

• Woofer: 8" (203 mm) Cerametallic cone with rubber surround — tight bass down to 31 Hz.
• Tweeter: 1" (25 mm) titanium LTS dome in a 90° × 90° Tractrix horn — Linear Travel Suspension lowers distortion.
• Bi-amped Class D amplification — separate ultra-low-noise amps maximize dynamic range.

Connectivity and Streaming — One Pair Replaces a Stack

The Nines II accepts audio from virtually any source without an external receiver. HDMI 2.1 with eARC pulls uncompressed Dolby Atmos and DTS:X from a TV, while a second HDMI 2.1 input lets a console or streaming box bypass the TV entirely. Built-in Wi-Fi and Bluetooth 5.4 cover wireless streaming, and USB-C handles computer audio at up to 24-bit/96 kHz.

• HDMI: HDMI 2.1 in/out with eARC, 8K/60 Hz and 4K/120 Hz passthrough — Atmos, VRR, ALLM, HDR.
• Wireless Streaming: Wi-Fi 5, Bluetooth 5.4, AirPlay 2, Google Cast, Spotify Connect, Tidal Connect, Qobuz Connect, Roon Ready
• Analog and digital inputs — RCA line-level, RCA phono MM, balanced XLR, optical, coaxial, USB-C, USB-A.

Room Correction and Cabinet — Tuned to Your Space

Dirac Live room correction (Limited Bandwidth up to 500 Hz) analyzes the listening position with the included calibration microphone and the Klipsch Connect Plus app, applying precise filters to correct bass and midrange anomalies. The MDF cabinet with Red Oak veneer and a rear-firing Tractrix port is matched to the woofer for clean airflow.

• Frequency Response: 31 Hz – 25 kHz — competes with many sub-plus-satellite setups.
• Cabinet: MDF with Red Oak veneer, one-piece BMC baffle, rear-firing Tractrix port
• Dimensions — 246 mm W × 462 mm H × 433 mm D; 14.88 kg primary / 14.42 kg secondary.

Who Should Choose the Nines II Red Oak

The Nines II is the right choice for listeners with larger living rooms, dedicated home theater spaces, or home studios who want a single pair to handle music, movies, gaming, and vinyl without adding a separate receiver or phono preamp. The 8" woofer and 107 dB SPL output mean most users won't need a subwoofer for music or casual movie watching, though an RCA sub output is on hand for extra low-end. Audiophiles benefit from balanced XLR inputs and the 24-bit/96 kHz wired DAC, while casual listeners get plug-and-play through HDMI eARC, AirPlay 2, or Bluetooth.

80 Years of Klipsch Horn-Loaded Engineering

For 80 years, Klipsch has built high-fidelity speakers in the United States, following the acoustic principles laid down by founder Paul W. Klipsch. The Klipschorn — still in production — established the horn-loaded, high-efficiency philosophy that runs through every modern Klipsch product. The Nines II carries that DNA into a powered, streaming-ready format with Onkyo electronics and Dirac Live.