Unibody Series · X-pattern
Penn PA-8X
8.0″ X-pattern · Carbon-Fiber Unibody
High-output 8″ X-pattern 2-way — 4-fold-symmetric, point-source coverage in any orientation, with a +6 dB sensitivity gain at LF from the 4-HF coherent array.
Specifications
Engineered, then verified.
Every figure on this page traces to this cabinet’s design data in the Penn Audio Speaker Lab, where it’s modeled as a complete system and verified before production.
| Configuration | X-pattern (1 LF center + 4 HF corners on square baffle), vented bass reflex (4 front ports) |
|---|---|
| Frequency response (−10 dB) | 48.1 Hz – 18 kHz |
| Frequency response (−3 dB) | 56.6 Hz – 18 kHz |
| Cabinet tuning Fb | 58.7 Hz |
| Sensitivity (1 W / 1 m) | 93.0 dB SPL |
| Maximum SPL (thermal) | 116.0 dB @ 1 m |
| Power handling (AES) | 200 W |
| Nominal impedance | 8.0 Ω |
| LF transducer | 8.0″ neodymium woofer |
| HF transducers | 4× 1.4″ ferrite compression drivers |
| Crossover | LR4 @ 1500 Hz (LF → 4× HF array), passive on slide-in baffle |
| Enclosure | One-piece carbon-fiber composite Unibody (design) |
| Dimensions (W × H × D) | 405 × 405 × 275 mm |
| Net internal volume | 12.0 L |
| Net weight | 12.0 kg |
| Rigging | M10 HeliCoil 4-point fly grid on top, bottom, left and right faces |
| Connectors | 2 × Neutrik Speakon NL4MP, parallel-wired |
| Finish | 2K polyurethane UV-stable clear coat, semi-matte |
Inside the design
Why it’s built this way.
X-pattern array
One woofer dead-center and four compression drivers at the corners of a square baffle. The 4-fold rotational symmetry makes horizontal and vertical coverage identical, and the four HF drivers in coherent series-parallel are designed to add acoustic gain and thermal headroom well beyond a single compression driver.
Carbon-fiber Unibody design
Designed as a one-piece carbon-fiber composite Unibody — a stiff, light shell engineered to push panel resonances clear of the operating band at meaningfully less weight than a comparable plywood or MDF cabinet.
Slide-in service
Every transducer and the passive crossover are designed to ride on a slide-in baffle that pulls out the front face. Service happens at a bench — the shell stays closed, with no glued joints to break.
Multi-orientation rigging
Symmetric fly-points are designed into all four side faces, so the cabinet can hang from any face in any axis; the front-loaded port is intended to keep the acoustic alignment consistent horizontal, vertical, or flown.
Penn Audio
Hear the PA-8X on your system.
Book a demo, or download the full datasheet.