Short answer: choose between the L-Acoustics 108P and JBL PRX908 for the deployment, not from the automatic ranking alone. Their driver format, power requirements, coverage, bass reach, output capability, and control features determine which is the more practical PA for a particular room or system.
The case for the L-Acoustics 108P. Medium-quality vendor Spinorama data produces a 7.32 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.
The case for the JBL PRX908. High-quality vendor data shows a 5.69 ideal-subwoofer preference score with 58Hz measured extension, backed by JBL’s extensive service network. A 12-band parametric EQ with dbx DriveRack feedback suppression and BLE app control carry over the PRX900 series’ engineering into an 8-inch cabinet.
Important trade-offs. 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. Its 126dB peak claim is modest for a main speaker, so pairing with a subwoofer matters more here than with the larger PRX modules.
Buy the L-Acoustics 108P when its stated format, coverage, and system features fit the job better.
Buy the JBL PRX908 when its stated output, control, and deployment strengths better match the system.
Want more options? Browse the full PA & Live Sound rankings.
A compact powered 8 inch coaxial PA speaker with extremely accurate sound, now discontinued but worth buying used.
A compact powered 8 inch PA speaker with well balanced sound, Bluetooth app control and feedback suppression for gigs and monitors.
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Specifications Side By Side
| L-Acoustics 108P | JBL PRX908 | |
|---|---|---|
| Price | $7,400 Discontinued | $699.00 |
| Ranked | #2 of 47 in 8-Inch PA Speakers | #6 of 47 in 8-Inch PA Speakers |
| Passive | No | No |
| Configuration | Self-powered 2-way coaxial PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 8” coaxial woofer, compression driver | 8” woofer, 1.5” compression driver |
| Frequency Response | 55Hz - 22kHz (-10dB, FRONT preset, manufacturer specified) | 55Hz - 20kHz (-10dB, manufacturer specified) |
| Dimensions | 16.6”H x 9.8”W x 11.8”D (421 x 250 x 299 mm) | 18.9”H x 12.3”W x 11.2”D (479 x 312 x 285 mm) |
| Inputs | Two parallel XLR inputs; two PowerCON AC input/link connectors | 2 x XLR/TRS combo, 3.5mm aux; 2 x XLR thru and XLR mix outputs |
| Amplifier Power | 760W (500W LF at 4Ω + 260W HF at 8Ω, manufacturer specified) | 2000W peak / 1000W RMS |
| Cabinet Material | 15/18mm Baltic birch plywood | Polypropylene/talc composite |
| Rigging | Integrated pole-mount socket; optional ETR8-2 bracket | 6 x M10 suspension points; dual 36mm pole sockets |
| Bass Extension (-3dB) | 71Hz (measured, vendor Spinorama data) | 63Hz (measured, vendor Spinorama data) |
| DSP | Yes, onboard presets and protection | Yes, 12-band parametric EQ and dbx DriveRack |
| Bluetooth | No | Yes, control via JBL Pro Connect app |
| Spinorama Preference Score | 4.62 | 3.10 |
| Spinorama Preference Score with Perfect Sub | 7.32 | 5.69 |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Maximum SPL | 127dB peak (1m, pink noise crest factor 4) | 126dB peak (manufacturer specified) |
| Coverage | 100° conical (-6dB) x 30° vertical | 105° x 60° |
| Weight | 28.7 lbs (13 kg) | 30.2 lbs (13.7 kg) |
| Crossover Frequency | - | 1930Hz |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: L-Acoustics 108P (measured by the manufacturer) and JBL PRX908 (measured by the manufacturer), via spinorama.org.
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