The Nines is a powered stereo pair in the Klipsch Heritage Wireless series, a family of active systems that combines the cabinet styling legacy of Paul W. Klipsch with current digital electronics. Compared with The Sevens it moves up to a larger woofer and comes in black or walnut real wood veneer over MDF. The system removes the need for a separate amplifier or receiver, and Klipsch designates one cabinet as the primary and the other as the secondary.
Key specs that matter
Both cabinets pair a 1 inch vented titanium LTS tweeter on a 90 x 90 degree Tractrix horn with an 8 inch high-excursion, long-throw woofer that has a fiber-composite cone. The amplification is bi-amped, with 100 W for each woofer and 20 W for each tweeter, giving 240 W total system power and 480 W peak. Rated frequency response is 34 Hz to 25 kHz within 3 dB. Klipsch quotes a maximum output of 115 dB at 1 m for the stereo pair. All digital inputs decode up to 192 kHz and 24 bit. Each cabinet measures 485.8 mm high, 241.3 mm wide and 339.7 mm deep, and the primary speaker weighs 12.88 kg against 12.25 kg for the secondary.
Engineering and use context
Inputs cover HDMI-ARC with CEC, Bluetooth 5.0 supporting the SBC, AAC, aptX and aptX HD codecs, optical and USB digital, a 3.5 mm analog mini jack and an RCA input that switches between line level and a built-in phono preamp, with a ground screw for a turntable. HDMI-ARC lets a television control volume through its own remote. Digital signal processing handles the crossover and a Dynamic Bass EQ that adjusts low-frequency level with volume, which Klipsch says extends bass to 22 Hz at 35 percent volume. The enclosures are bass reflex, vented at the rear. The Klipsch Connect app offers EQ presets, a virtual remote and over-the-air firmware updates. Controls are tactile metal switches and knobs, and cork pads sit under each cabinet. Mains voltage from 100 to 240 V is handled by an internal supply. The box includes a remote, a 4 m four-conductor cable with a 2 m extension to link the two speakers, a 1.5 m HDMI cable and a 1.5 m USB cable.
Pairing
Klipsch designed the pair to take a record player, a television, a desktop computer and a smartphone as sources at the same time, so no preamp or receiver has to sit between them. Klipsch subwoofers are listed as compatible with the single RCA line-level sub output, and Klipsch sells optional 61 cm stands matched to the cabinet.
Alternatives
The Klipsch The Sevens is the smaller Heritage Wireless pair, using a 6.5 inch woofer and 200 W of total system power.