• A True Large-Format Horn System — Built Beyond the Limits of Conventional Speakers

Full-scale authority.
Horn-driven dynamics.
Composed… no matter how far you push it.

Most systems at this level rely on multiple drivers and complex internal crossovers.

The Magnum takes a different approach.

Traditional large-format speakers often require a dedicated midrange driver because the woofer cannot comfortably reach high enough...

and the horn cannot comfortably reach low enough.

The result is often strain, overlap chaos, collapsing imaging, and drivers fighting each other through the most important part of the music.

The Magnum was designed specifically to eliminate that problem.

By using a massive 16.5-inch Beyma horn, specialized 2-inch compression driver, and the Continuum crossover architecture...

the Magnum reaches far deeper into the music than conventional horn systems while remaining composed, controlled, and effortless.

This allows the Magnum to integrate directly with the 12-inch foundation driver without requiring a separate dedicated midrange.

Less fighting between drivers.
Better dynamic flow.
Less strain.
One unified presentation.

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Continuum Crossover Tuning Array
This is not complexity. It’s control.

The Continuum Tuning Array lets you shape both crossover engagement and horn level...

so the system works with your room and listening preferences — not against them.

Capacitor and resistor arrays give you control over vocal presence, upper-mid energy, and overall horn integration...

from forward and energetic...

to relaxed and smooth.

The foundation driver continues...

as the horn gradually takes over.

• No gaps.
• No collisions.
• No abrupt handoff.

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Continuum Capacitor Array

Three selectable capacitors bracket the crossover region...

allowing the Magnum to adapt to both your room and your listening preferences.

• Prominent mids
• Neutral balance
• Relaxed presentation

Dial in the presentation first...

then later step into a boutique capacitor at the exact value you prefer.

No guesswork.

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Continuum Resistor Array

Adjust the horn level to match your system, room, and listening distance.

• Bold — increased presence and energy
• Neutral — balanced integration
• Relaxed — smoother and softer presentation

Simple control... proper integration.

The supplied resistor array covers the overwhelming majority of systems and listener preferences. Because every room, amplifier, and loudspeaker behaves differently, some advanced users may choose to explore additional resistor values beyond the supplied tuning set. Compatible non-inductive resistors are inexpensive and readily available from common speaker parts suppliers such as Parts Express, Madisound, and Solen.

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The Magnum Acoustic Engine

A massive 16.5-inch horn...

fed by a specialized 2-inch compression driver...

reaching from the upper vocal range deep into the critical body of the music.

Not as a limitation...

but as a true working range.

The horn carries far more of the music than conventional high-frequency systems.

More detail.
More energy.
More structure.
More composure.

You do not just hear it...

you feel the scale of it.

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The Foundation

A 12-inch high-efficiency foundation driver provides the weight and scale beneath the horn system.

Where smaller systems begin to compress...

the Magnum remains composed and effortless.

Speed above.
Mass below.
Anchored... not forced.

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The Architecture

Horn alignment is built in — no adjustment required.
Fine tuning is handled through the Continuum Tuning Array.

The horn and crossover are external.

Accessible.

Adjustable.

Isolated.

Accessible for tuning.

Adjustable for integration.

Isolated from cabinet vibration and pressure.

Placed where it can be understood... and controlled.

This is not complexity.

It’s control.

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Continuum Crossover

Not a fixed handoff.

A controlled overlap.

The foundation driver gradually recedes...

the horn progressively emerges.

No gaps.

No collisions.

No disconnected presentation.

One continuous large-format system.

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Real-World Performance

2-way large-format horn system
~80L vented cabinet
~95 dB sensitivity
~24 Hz – 20 kHz
8 ohms

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Here's the Magnum in the same format for your Shopify product page.

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Specifications

Type
2-Way High-Efficiency Bass Reflex Loudspeaker

Sensitivity
95–96 dB (2.83V / 1m)

Nominal Impedance
8 Ohms

Frequency Response (In-Room)
24 Hz – 20 kHz

Recommended Amplifier Power
3–200 Watts

Maximum Continuous Power Handling
200 Watts Continuous

Enclosure Volume
80 Liters

Low Frequency Driver
Beyma 12BR70 12" Professional Woofer

High Frequency System
Shinjitsu Audio Magnum Acoustic Engine

Compression Driver
Beyma CP750Nd 2" Exit Compression Driver

Horn
Beyma TD-460N Constant Directivity Horn

Crossover Frequency
Approximately 900 Hz

Cabinet Construction
18 mm Furniture-Grade Baltic Birch Plywood

Front Baffle
18 mm Baltic Birch with ¼" Solid Hardwood Faceplate

Available Hardwood Species
Walnut, Morado, Wenge, Cherry, Black Limba, Canarywood, Ambrosia Maple, White Oak, Brazilian Hickory, or Baltic Birch

Finish
Hand-finished natural hardwood with satin clear protective coating

Binding Posts
Premium Gold-Plated Five-Way Binding Posts

Weight
Approximately 70–75 lbs (32–34 kg) each (depending on hardwood species)

Dimensions
25" H × 16" W × 17" D

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Performance

• Designed for low-power tube amplifiers and high-performance solid-state systems

• Exceptional dynamics and effortless musical realism from only a few watts of input power

• Controlled directivity through the Shinjitsu Audio Magnum Acoustic Engine

• Deep, authoritative bass from a carefully tuned 80-liter enclosure

• Wide, stable soundstage with outstanding vocal presence and imaging

• Individually hand-built, measured, and tested in Arizona

I would also add one line that distinguishes the Magnum from nearly every speaker in its class:

High sensitivity and low distortion allow the Magnum to deliver realistic listening levels with only a few watts, while remaining capable of handling amplifiers up to 200 watts with exceptional dynamic headroom.

That statement is accurate, technically meaningful, and reinforces one of the Magnum's strongest design advantages without overstating its capabilities.