Unibody Series
One methodology.
Eight models.
Five X-pattern tops and three front-ported subwoofers — every cabinet built around the carbon-fiber Unibody design with a slide-in baffle. Rig horizontally, vertically, or flown, with no change to the acoustic alignment.
What makes it distinctive
Four ideas, applied to every cabinet.
01
The X-pattern driver array
Every top uses a square baffle with one woofer dead-center and four compression drivers at the corners. The 4-fold rotational symmetry means coverage is identical horizontally or vertically — and the four HF drivers in coherent series-parallel deliver +6 dB of acoustic gain and 4× the thermal headroom of a single compression driver.
02
Multi-orientation rigging
A symmetric M10 fly-point grid is co-cured into the shell on all four side faces. Hang the cabinet from any face, in any axis. The front-loaded port keeps the acoustic alignment identical regardless of orientation.
03
Slide-in service
A continuous EPDM gasket and twelve to twenty-four captive M6 stainless bolts hold the baffle to the shell. Pop the baffle out, swap drivers or recap the crossover at a bench, slide it back in. No glued joints to break.
04
Matched transducers
Every transducer is selected and matched in-house — neodymium and ferrite woofers, neodymium bass-mids, and compression drivers — for a consistent voicing curve and a coherent impedance class across the line.
The lineup
Specs at a glance.
Tap any model for full specifications, driver complement, and its simulated enclosure response.
X-pattern tops
1 woofer + 4 corner compression drivers · square baffle · rotation-invariant.
| Model | Config | F3 (−3 dB) | Max SPL | Power (AES) | Weight |
|---|---|---|---|---|---|
| Penn PA-65X | X-pattern | 46.5 Hz | 105.6 dB | 60 W | 8.5 kg |
| Penn PA-8X | X-pattern | 56.6 Hz | 116.0 dB | 200 W | 12.0 kg |
| Penn PA-10X | X-pattern | 69.9 Hz | 119.8 dB | 250 W | 17.0 kg |
| Penn PA-12X | X-pattern | 45.9 Hz | 124.5 dB | 450 W | 23.0 kg |
| Penn PA-15X | X-pattern | 42.2 Hz | 126.8 dB | 800 W | 32.0 kg |
Subwoofers
Front-ported · orientation-independent.
| Model | Config | F3 (−3 dB) | Max SPL | Power (AES) | Weight |
|---|---|---|---|---|---|
| Penn PA-S15 | Subwoofer | 34.5 Hz | 128.1 dB | 1200 W | 29.0 kg |
| Penn PA-S18 | Subwoofer | 24.3 Hz | 127.3 dB | 1200 W | 46.0 kg |
| Penn PA-S21 | Subwoofer | 28.8 Hz | 128.9 dB | 1800 W | 58.0 kg |
Rotation-invariant coverage
Identical, horizontal or vertical.
Because the baffle is square and the driver layout has 4-fold rotational symmetry, the coverage pattern doesn’t change when you rotate the box. A cabinet flown as a vertical main and the same cabinet laid on its side as a stage monitor radiate the same way.
The four corner compression drivers run in coherent series-parallel, summing to a convenient net impedance while adding acoustic gain and thermal headroom no single compression driver can match.
Built to be hung any way
Fly it from any face.
Symmetric fly-points are designed into all four side faces, each bonded into a load-distribution plate. The rigging is engineered to a 1.6 kN working-load limit per point with a 10× safety factor for overhead suspension, following ANSI E1.6-1 and IEC 60598-2-22.
Because the port fires from the front, proximity to walls and floor behaves predictably no matter how the cabinet is oriented.
Penn Audio
Spec the Unibody Series for your room.
Every cabinet is engineered and verified in the Speaker Lab. Book a demo or download the full datasheet.