QSC K8.2 vs L-Acoustics 108P

Last updated: September 7, 2026

Short answer: the QSC K8.2, unless you already run L-Acoustics gear. These rank #1 and #2 out of 15 8-inch powered PA speakers, and both post unusually strong measured results for the size class, but only one of them is still easy to buy.

Both measure exceptionally well for an 8-inch box, with real caveats attached. The K8.2 returns a 6.88 ideal-subwoofer preference score, the standout result in this size class, though that number comes from low-quality vendor data and deserves some caution. The 108P is close behind at 6.42 from medium-quality data, with a measured bass extension down to 71Hz from its compact coaxial cabinet. Both speakers ultimately need a subwoofer partner to cover full-range PA duty.

The 108P is a discontinued cabinet. It is difficult to source today, and it lacks the onboard mixer or modern networking that current-production boxes offer. Its ranking reflects acoustic performance at launch, not present-day ownership convenience. The K8.2, by contrast, is a current QSC product backed by the company’s long market track record and wide dealer network.

Driver and build differ meaningfully. The K8.2 uses a discrete 8-inch woofer with a 1.4-inch titanium compression driver and a 105-degree conical horn, in an impact-resistant ABS cabinet with onboard DSP. The 108P instead uses a coaxial woofer/compression-driver arrangement in a 15/18mm Baltic birch plywood cabinet, with onboard presets and protection DSP but no user-adjustable EQ.

Buy the QSC K8.2 for a box you can actually purchase new, with full DSP control, XLR thru/mix outputs for daisy-chaining, and a 2 x M10 rigging option for flown use.

Buy the L-Acoustics 108P only if you find one on the used market at a strong discount and already own compatible L-Acoustics rigging or processing gear.

QSC K8.2 vs L-Acoustics 108P

Specifications Side By Side

QSC K8.2 L-Acoustics 108P
Price$749.99-
Ranked#1 of 15 in 8-Inch Two-Way Powered PA Speakers#2 of 15 in 8-Inch Two-Way Powered PA Speakers
ConfigurationActive 2-way bass-reflex PA speakerSelf-powered 2-way coaxial PA speaker
Drivers8" woofer, 1.4" titanium compression driver8" coaxial woofer, compression driver
Frequency Response59Hz - 20kHz (-6dB, manufacturer specified)55Hz - 22kHz (-10dB, FRONT preset, manufacturer specified)
Dimensions17.7"H x 11"W x 10.6"D (449 x 280 x 269 mm)16.6"H x 9.8"W x 11.8"D (421 x 250 x 299 mm)
Coverage105° conical-
Maximum SPL128dB peak (manufacturer specified)-
Inputs2 x XLR/TRS combo, 3.5mm aux; 2 x XLR thru and XLR mix outputsTwo parallel XLR inputs; two PowerCON AC input/link connectors
Amplifier Power2025W peak (1800W LF + 225W HF)760W (500W LF at 4Ω + 260W HF at 8Ω, manufacturer specified)
Cabinet MaterialImpact-resistant ABS15/18mm Baltic birch plywood
Rigging2 x M10 inserts and pull-back point; 35mm pole mountIntegrated pole-mount socket; optional ETR8-2 bracket
Bass Extension (-3dB)58Hz (measured, vendor Spinorama data)71Hz (measured, vendor Spinorama data)
DSPYesYes, onboard presets and protection
BluetoothNoNo
Weight26.9 lbs / 12.2 kg-

More useful head-to-heads from the same speaker class:

Prices on this page were last checked September 7, 2026 at 7:47 AM 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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The Two Speakers In Full

QSC K8.2: $749.99 Amazon B&H Photo Video Guitar Center eBay

QSC K8.2 ranking card

Pros: This is the standout measured result in this ranking: low-quality vendor data still returns a 6.88 ideal-subwoofer preference score, continuing the K.2 series’ strong showing at every driver size. Extensive onboard DSP, a titanium compression driver and QSC’s long market track record make it an unusually safe general-purpose 8-inch pick.

Cons: The underlying Spinorama source is low quality, so its apparent measured lead deserves some caution. An 8-inch woofer means a subwoofer partner matters even more than with the larger K.2 models.

Amplifier Power2025W peak (1800W LF + 225W HF)
Bass Extension (-3dB)58Hz (measured, vendor Spinorama data)
BluetoothNo
Cabinet MaterialImpact-resistant ABS
ConfigurationActive 2-way bass-reflex PA speaker
Coverage105° conical
DSPYes
Dimensions17.7"H x 11"W x 10.6"D (449 x 280 x 269 mm)
Drivers8" woofer, 1.4" titanium compression driver
Frequency Response59Hz - 20kHz (-6dB, manufacturer specified)
Inputs2 x XLR/TRS combo, 3.5mm aux; 2 x XLR thru and XLR mix outputs
Maximum SPL128dB peak (manufacturer specified)
Rigging2 x M10 inserts and pull-back point; 35mm pole mount
Weight26.9 lbs / 12.2 kg

L-Acoustics 108P eBay

L-Acoustics 108P ranking card

Pros: Medium-quality vendor Spinorama data produces a 6.42 ideal-subwoofer preference score, one of the strongest results in this entire family of rankings, with 61Hz bass extension from a compact 8-inch coaxial cabinet.

Cons: This discontinued cabinet is difficult to source and lacks modern networking or an onboard mixer. Its ranking reflects acoustic performance rather than present-day value or ownership convenience.

Amplifier Power760W (500W LF at 4Ω + 260W HF at 8Ω, manufacturer specified)
Bass Extension (-3dB)71Hz (measured, vendor Spinorama data)
BluetoothNo
Cabinet Material15/18mm Baltic birch plywood
ConfigurationSelf-powered 2-way coaxial PA speaker
DSPYes, onboard presets and protection
Dimensions16.6"H x 9.8"W x 11.8"D (421 x 250 x 299 mm)
Drivers8" coaxial woofer, compression driver
Frequency Response55Hz - 22kHz (-10dB, FRONT preset, manufacturer specified)
InputsTwo parallel XLR inputs; two PowerCON AC input/link connectors
RiggingIntegrated pole-mount socket; optional ETR8-2 bracket