Horn X 2PRO Engine with Foundation Cabinet (PAIR)

Horn X2 PRO Engine with Foundation Bass Cabinet (PAIR)

A Complete Full-Range Horn System — No Tools. No Guesswork

Just Plug and Play
Moveable Horn2PRO allows you to try it on any speakers

The Horn X2 PRO Engine with Foundation Bass Cabinet forms a complete, plug-and-play loudspeaker system delivering extraordinary clarity, scale, and balance. Built on the same 48-liter Baltic birch enclosure as our Hiro, the Foundation integrates a precision-tuned baffle-step module — 3D-printed from carbon-fiber PLA and epoxy-embedded for long-term stability and acoustic damping.

The Horn X2 PRO Engine is set atop the bass cabinet, lifting and smoothing the high-end response of the Mark Audio CHR-120 extended-range driver or Mark Audio MA200M. Tuned to the low 30 Hz region, the Foundation pairs seamlessly with the Horn X2 PRO Engine to form a coherent, full-range system.

Each cabinet includes premium copper top mounted speaker terminals. Inside, Mil-Spec silver-over-copper wiring preserves signal integrity from amplifier to driver.

Setup is straightforward: place the Horn X2 PRO Engine on top of the Foundation Cabinet, connect your amplifier to the Horn’s center terminals, and link the outer terminals to the cabinet inputs. No soldering, no modification — simply music, perfectly integrated.

The Horn X2 PRO Engine resistor can be adjusted to match your room and taste. Capacitors are pre-selected for ideal crossover balance, with options for Clarity CSA (extended, transparent highs) or Mundorf EVO Oil (smooth and refined treble).

Note: The Foundation Cabinet is built exclusively for the Horn X2 PRO Engine and is not sold separately.

Horn Voicing Adjustment

The Horn X2 PRO Engine includes a user-accessible voicing resistor that allows you to adjust how prominent the horn feels relative to your main driver. This does not change the crossover design — it simply fine-tunes balance.

The circuit operates at low speaker-level voltage. There is no risk of electric shock, and no setting that can damage the horn, woofer, or amplifier.

Bold
The horn steps forward slightly, increasing presence, clarity, and dynamic impact. Useful at lower listening levels, with absorptive rooms, or for listeners who enjoy immediacy and energy.

Neutral
Balanced and natural. The horn integrates seamlessly with the main driver, preserving tone, imaging, and scale. This is the factory reference voicing and the recommended starting point.

Relaxed
The horn settles back subtly, emphasizing warmth, body, and long-term listening comfort. Ideal for lively rooms or listeners who prefer a smoother, more laid-back presentation.

All voicing options are intentional, safe, and fully reversible — trust your ears.

Specifications

Dimensions: 30″ H × 9.25″ W × 19.75″ D (same cabinet as Hiro)
Weight: 45 lb per cabinet
Impedance: 8 Ω nominal
Frequency Response: 32 Hz – 20 kHz
Power Compatibility: 8 W and above
Finish: Natural Baltic birch standard; custom faces available on request

Cabinet Construction & Joinery

All Shinjitsu Audio speaker cabinets are built from ¾-inch Baltic Birch plywood — never MDF.

Baltic Birch offers superior damping and strength through its multi-layer cross-grain construction (13 plies per 18 mm panel). It resists flex and ringing for cleaner sound and long-term stability.

Rabbet Joint Strength
- Increased Glue Surface Area — the L-shaped notch provides long-grain bonding for superior adhesion.
- Mechanical Interlock — shouldered design resists racking forces and keeps panels square.
- Easy Alignment — self-registering during assembly for tight fits and repeatable accuracy.
- Applications — used in fine cabinetry and speaker frames where strength and precision matter.
End grain is visible by design — a by-product of true joinery and honest construction.

Why We Don’t Use Veneer

Veneer averages only 0.5 mm (1⁄50 in.) thick — easily damaged and impossible to repair once cut through. By contrast, the outer layer of Baltic Birch is about 1.5 mm (1⁄16 in.) thick — three times stronger and resistant to moderate scratches that can be sanded and refinished at home.

We prioritize strength, damping, and serviceability over “pretty and weak.”
Seasonal species include walnut, oak, Brazilian hickory, black limba, and wenge plus more. See wood options page for details. and more. Grain-matched, hand-sanded, and individually finished.

$2,995 / pair — Horn X2 PRO Engine with Foundation Cabinet

This price reflects the precision of a modular system — handcrafted cabinetry, state-of-the-art components, and the flexibility to evolve with your future projects. Unlike fully integrated designs, the Horn X2 PRO Engine with Foundation Cabinet lets you re-position or reuse the horn module as your system grows.

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