Ascendo THE100 Sub Pro Passive Sealed

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THE100 SUB PRO PASSIVE — The Most Powerful Subwoofer on Earth

An honest 100-inch subwoofer. No exaggeration. No compromise. With the 100 SUB PRO PASSIVE, ASCENDO presents a monumental achievement in infrasonic loudspeaker design — the undisputed masterwork of subwoofer engineering. Born from the pioneering legacy of our 50” and 64” systems, this ultimate infrasonic transducer ventures boldly into territory never before explored, redefining how bass is understood, reproduced, and felt.


Every square centimeter of this instrument is a statement — a triumph over the mechanical, magnetic, and electrical boundaries that once defined subwoofer design.

Unrivaled in Power, Precision, and Scale
Equipped with a custom-built 100” driver and powered by a 10–22 kW DSP-controlled amplifier via ASCENDO’s Speaker Management Technology, THE100 delivers performance that is simply unmatched:

  • Effortless output down to 1 Hz

  • Absolute authority in the single-digit frequency range

  • Unshakable control, speed, and detail — even at maximum displacement

Its 21” voice coil motor, combined with an ultra-low resonance frequency and critically damped sealed enclosure, results in lightning-fast impulse response and market-leading low group delay — even below 10 Hz. No other subwoofer can match this balance of sheer power and pinpoint control.


Not Just Heard — Felt to the Core
THE100 SUB PRO PASSIVE doesn’t just play low frequencies — it summons them from the earth itself. It moves an unfathomable volume of air with grace, speed, and clarity, articulating each infrasonic wave with surgical resolution. This is not just loud. It’s elemental.


From the subtlest atmospheric rumble to the full-body impact of cinematic destruction, it elevates the emotional and physical experience of sound to a completely new level. And yet, it performs with such precision that it integrates flawlessly into highly critical music playback systems, delivering natural, musically coherent low-frequency extension with zero compromise.


Built On Site. Engineered Without Limits.
Due to the unprecedented scale of the 100” driver, the subwoofer’s enclosure must be constructed on-site. ASCENDO works closely with its certified dealers and integrators to define precise specifications based on room dimensions, acoustic requirements, and architectural constraints.

This ensures that every installation is not just tailored — it is engineered for greatness.

At the Forefront of Infrasonic Innovation
THE100 SUB PRO PASSIVE is more than a subwoofer — it is the ultimate low-frequency reference, the final word in cinematic bass reproduction, and the foundation upon which the greatest audio systems in the world are built. Whether anchoring a world-class home theater or redefining what’s possible in ultra-high-end stereo listening, this is the subwoofer that has no rival.


There is only one. THE100.

Specification

General

Speaker Type: Custom-built 100" woofer with dual 21" voice coil

XMAX: 39 mm excursion each direction, voice coil remaining in homogeneous magnetic field, linear and lowest distortion

Principle: Sealed

Passive | Active: Passive

Recommended Amplifiers: Rack mount, 2 x 5000 Watt up to 2 x 11000 Watt AES67 AIA2-10K2 IS + DSP4-D included

Measured Data

SPL Peak (Peak / Half Space 2pi): Calculated Data (Example, custom enclosure dependent) 146 dB (Cont.) / 150 dB (Peak)

Frequency Range: Calculated Data (Example, custom enclosure dependent) 1 Hz - 100 Hz

Power Handling: 20000 W (20 kW)

Efficiency: 105 dB / 1 W/m 2 pi

Impedance: Dual Voice Coil, 4 Ω each

Directivity Horizontal x Vertical in deg°: 360°

Max Linear Air Volume Displacement: 73.42 US. liq. gal. | 277.93 L

Input

Input Terminal: Binding Posts

Dimensions & Weight

Dimensions (W/H/D) mm (Without Grille): 2360 | 2360 | 775 (Driver only)

Dimensions (W/H/D) inch (Without Grille): 92 15/16 | 92 15/16 | 30 1/2 (Driver only)

Packing Dimensions (W/H/D) mm: 2440 | 2440 | 1610

Packing Dimensions (W/H/D) inch: 96 1/16 | 96 1/16 | 63 3/8

Weight: 573.20 lbs | 260 kg

Gross Weight: 903.89 lbs | 410 kg

Design & Mounting

Enclosure: Complete custom design of enclosure for desired installation, for dealer/contractor build locally, minimum 10 m³

THE100 SUB PRO PASSIVE — The Most Powerful Subwoofer on Earth

An honest 100-inch subwoofer. No exaggeration. No compromise. With the 100 SUB PRO PASSIVE, ASCENDO presents a monumental achievement in infrasonic loudspeaker design — the undisputed masterwork of subwoofer engineering. Born from the pioneering legacy of our 50” and 64” systems, this ultimate infrasonic transducer ventures boldly into territory never before explored, redefining how bass is understood, reproduced, and felt.


Every square centimeter of this instrument is a statement — a triumph over the mechanical, magnetic, and electrical boundaries that once defined subwoofer design.

Unrivaled in Power, Precision, and Scale
Equipped with a custom-built 100” driver and powered by a 10–22 kW DSP-controlled amplifier via ASCENDO’s Speaker Management Technology, THE100 delivers performance that is simply unmatched:

  • Effortless output down to 1 Hz

  • Absolute authority in the single-digit frequency range

  • Unshakable control, speed, and detail — even at maximum displacement

Its 21” voice coil motor, combined with an ultra-low resonance frequency and critically damped sealed enclosure, results in lightning-fast impulse response and market-leading low group delay — even below 10 Hz. No other subwoofer can match this balance of sheer power and pinpoint control.


Not Just Heard — Felt to the Core
THE100 SUB PRO PASSIVE doesn’t just play low frequencies — it summons them from the earth itself. It moves an unfathomable volume of air with grace, speed, and clarity, articulating each infrasonic wave with surgical resolution. This is not just loud. It’s elemental.


From the subtlest atmospheric rumble to the full-body impact of cinematic destruction, it elevates the emotional and physical experience of sound to a completely new level. And yet, it performs with such precision that it integrates flawlessly into highly critical music playback systems, delivering natural, musically coherent low-frequency extension with zero compromise.


Built On Site. Engineered Without Limits.
Due to the unprecedented scale of the 100” driver, the subwoofer’s enclosure must be constructed on-site. ASCENDO works closely with its certified dealers and integrators to define precise specifications based on room dimensions, acoustic requirements, and architectural constraints.

This ensures that every installation is not just tailored — it is engineered for greatness.

At the Forefront of Infrasonic Innovation
THE100 SUB PRO PASSIVE is more than a subwoofer — it is the ultimate low-frequency reference, the final word in cinematic bass reproduction, and the foundation upon which the greatest audio systems in the world are built. Whether anchoring a world-class home theater or redefining what’s possible in ultra-high-end stereo listening, this is the subwoofer that has no rival.


There is only one. THE100.

Specification

General

Speaker Type: Custom-built 100" woofer with dual 21" voice coil

XMAX: 39 mm excursion each direction, voice coil remaining in homogeneous magnetic field, linear and lowest distortion

Principle: Sealed

Passive | Active: Passive

Recommended Amplifiers: Rack mount, 2 x 5000 Watt up to 2 x 11000 Watt AES67 AIA2-10K2 IS + DSP4-D included

Measured Data

SPL Peak (Peak / Half Space 2pi): Calculated Data (Example, custom enclosure dependent) 146 dB (Cont.) / 150 dB (Peak)

Frequency Range: Calculated Data (Example, custom enclosure dependent) 1 Hz - 100 Hz

Power Handling: 20000 W (20 kW)

Efficiency: 105 dB / 1 W/m 2 pi

Impedance: Dual Voice Coil, 4 Ω each

Directivity Horizontal x Vertical in deg°: 360°

Max Linear Air Volume Displacement: 73.42 US. liq. gal. | 277.93 L

Input

Input Terminal: Binding Posts

Dimensions & Weight

Dimensions (W/H/D) mm (Without Grille): 2360 | 2360 | 775 (Driver only)

Dimensions (W/H/D) inch (Without Grille): 92 15/16 | 92 15/16 | 30 1/2 (Driver only)

Packing Dimensions (W/H/D) mm: 2440 | 2440 | 1610

Packing Dimensions (W/H/D) inch: 96 1/16 | 96 1/16 | 63 3/8

Weight: 573.20 lbs | 260 kg

Gross Weight: 903.89 lbs | 410 kg

Design & Mounting

Enclosure: Complete custom design of enclosure for desired installation, for dealer/contractor build locally, minimum 10 m³