The HK Audio LINEAR 9 112 XA is rated 4/5 for sound quality, #15 of 83 12-Inch PA Speakers. See all PA & Live Sound rankings for every top pick.
Prices on this page were last checked October 24, 2026 at 4:42 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Brand: HK Audio
#15 HK Audio LINEAR 9 112 XA: $1,965.54 Amazon $1,965.54 eBay
Same family: the HK Audio LINEAR 9 110 XA (smaller model, rated 4.2/5).
Pros: A networked 12 inch powered PA speaker in a durable plywood cabinet with good sound and full remote DSP for professional systems. The high-quality vendor data returns a 5.66 ideal-subwoofer preference score. MILAN networking, comprehensive remote DSP and a durable plywood cabinet make it a strong systems-oriented choice for professional deployment. Measured bass extension of 90Hz (-3dB).
Cons: Its 82Hz measured bass extension and 131dB peak claim mean it depends more on a subwoofer than the strongest stand-alone boxes. Buyers who do not need networked audio may find better value in simpler mainstream models.
Is the HK Audio LINEAR 9 112 XA right for you?
Skip it if
- you will not add a subwoofer: bass rolls off below about 90 Hz.
- you want the best value: the higher-rated QSC K12.2 costs about $1,066 less.
| Released | Nov 2021 (4 years ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 700W RMS |
| Aux Input | No |
| Bass Extension (-3dB) | 90Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Birch plywood with PU coating |
| Coaxial Input | No |
| Configuration | Active 2-way bass-reflex PA speaker/monitor |
| Coverage | 70° x 50°, rotatable |
| Crossover Frequency | 1600Hz |
| DSP | Yes, networked PEQ, filters, delay and limiter |
| Dimensions | 26.4”H x 14.6”W x 12.2”D (670 x 370 x 310 mm) |
| Drivers | 12” woofer, 1” compression driver |
| Frequency Response | 62Hz - 20kHz (-10dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Inputs | XLR/TRS combo, XLR thru/DSP out, dual EtherCON |
| Maximum SPL | 131dB peak (manufacturer specified) |
| Microphone Input | No |
| Network Control | Milan and HK Audio DSP Control |
| Optical Input | No |
| Passive | No |
| RCA Input | No |
| Rigging | 5 x M8 points; DuoTilt 3°/7° pole mount |
| Spinorama Preference Score | 2.40 |
| Spinorama Preference Score with Perfect Sub | 5.66 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 45.2 lbs (20.5 kg) |
| XLR Input | Yes |
Price history
$1,965.54 is about its usual price. The lowest we have tracked since Sep 2026 is $1,874.38, in Sep 2026.
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Frequency Response
How the HK Audio LINEAR 9 112 XA measures across the audible range. A flatter listening window (the sound arriving straight at you) is more neutral: peaks sound forward or harsh, dips sound recessed. The estimated in-room response adds what a typical room does, and there a gentle, even tilt down toward the treble is ideal. Both curves are shifted so their 300 Hz to 3 kHz average sits at 0 dB.
Measurement data: spinorama.org, measured by the manufacturer.
EQ for a Neutral Response
Flattens the measured listening window from the HK Audio LINEAR 9 112 XA's own bass extension up to 16 kHz. Set a preamp of -1.9 dB, then add these filters to any parametric equalizer in the signal path: the speaker's app or DSP if it has parametric EQ, a miniDSP, Equalizer APO or Wavelet. Boosts are kept to 3 dB, and EQ cannot fix how evenly the speaker spreads sound off-axis, which is why some speakers gain more than others. Predicted preference score with this EQ: 3.3, up from 2.4 (6.6 with an ideal subwoofer, up from 5.7). Calculated by Speaker Ranking from the spinorama measurements above.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 8,000 Hz | -0.8 dB | 0.70 |
| Peak | 126 Hz | -2.1 dB | 2.00 |
| Peak | 1,292 Hz | +1.5 dB | 2.52 |
| Peak | 2,232 Hz | -1.2 dB | 4.00 |
| Peak | 3,080 Hz | -1.2 dB | 2.00 |
| Peak | 7,573 Hz | -2.0 dB | 1.13 |
| Peak | 15,256 Hz | +3.0 dB | 3.29 |