The Klipsch The Nines ranks #20 out of 25 total Large Size Powered Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#20 Klipsch The Nines: $1,349.99 Sweetwater
Pros: Erin calls these his favorite Klipsch speaker he has heard. With the tweeter trim set to -2dB, the listening-window response stays within roughly +/-1.5dB from 40Hz to just above 10kHz, and they produced genuinely powerful bass that reached about 30Hz in his room. The 8-inch woofer remains below 3% THD from 30Hz upward at 96dB/1m; compression is well controlled through about 90dB, and its limiter was not a concern at realistic listening levels. Exceptional all-in-one connectivity includes HDMI ARC, phono, USB, optical, Bluetooth, analog inputs and a subwoofer output; the Klipsch Connect app supplies useful bass/mid/treble adjustment.
Cons: The app’s flat setting leaves the treble elevated, and Erin preferred a -2dB tweeter trim. There is a likely tweeter/waveguide breakup feature around 16kHz, though he did not hear it. Horizontal coverage is narrow (about +/-30 degrees), prioritizing a focused image over room involvement; listeners who prefer a wider soundstage may not like that trade-off. Ear height matters: he recommends the reference plane between woofer and tweeter rather than directly on tweeter axis. The speaker begins limiting above roughly 90dB/1m, and the two cabinets still require a physical inter-speaker cable.
How it compares: Just above it: Thomann Swissonic A306 - $1100 cheaper, 140W less output power. Just below it: KRK Rokit 8 G4 - $850 cheaper, 140W less output power.
| App | Klipsch Connect (bass/mid/treble EQ) |
|---|---|
| Bass Extension (-10dB) | 31Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 41Hz (measured, Erin's Audio Corner) |
| Dimensions | 19.13"H x 9.5"W x 13.38"D |
| Drivers | 8" high-excursion fiber-composite woofer, 1" titanium LTS vented tweeter with Tractrix horn |
| Frequency Response | 34Hz - 25kHz +/-3dB (manufacturer specified) |
| Inputs | HDMI ARC, Bluetooth 5.0, phono/line RCA, 3.5mm, USB, optical |
| Max SPL | 115dB at 1m (stereo pair, manufacturer specified) |
| Output Power | 240W total (480W peak; 100W LF + 20W HF per powered speaker) |
| Sensitivity | 82.5dB (measured at 0.30V/1m, Erin's Audio Corner) |
| Weight | 28.4 lbs primary, 27.0 lbs secondary |
| Woofer Cabinet | rear-ported bass reflex |
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