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THE18 SUB

PRO PASSIVE

SEALED

Description

The THE18 SUB PRO PASSIVE SEALED is a jewel in the pool of subwoofers designed for the highly educated customer that is on the quest for the highest performance and understands how to differentiate sound quality. 

When this customer experiences the THE18 SUB PRO PS’s unparalleled output and uncolored sound, the measured test results we publish translate perfectly to realized performance. ASCENDO’s policy is to be completely transparent and publish measurements done by independently certified third-party labs to provide factual data, thereby enabling informed, educated decisions. 

The THE18 SUB PRO PS is so far above and beyond the competition in every aspect; refined musicality, tightness, and output levels suitable for a 18" driver. It is also engineered to operate perfectly in sync (in phase) with our Infrasonic subwoofers: THE24/32/50/80 SUB PRO SEALED when there is a desire to reproduce movie content below 20Hz with the same authority, precision, and musicality. Compared to conventional subwoofer motor concepts, the ultra-modern double-gap motor of this custom-made 18"" driver with two outer and two inner voice-coils enables more linear travel and much faster directional changes with higher sound power and significantly lower power compression.

Compared to conventional subwoofer motor concepts, the ultra-modern double-gap motor of this custom-made 18" driver with two outer and two inner voice-coils enables more linear travel and much faster directional changes with higher sound power and significantly lower power compression.

Specification

General

Speaker Type

18” forward-firing, dual gap motor structure - 2 inner and 2 outer voice coils, neodymium motor


XMAX

17.5 mm excursion each direction (35 mm linear), voice coil remaining in homogeneous magnetic field, linear and lower distortion


Principle

Sealed


Passive | Active

Passive


Recommended Amplifiers

1Ch DSP and 1Ch amplifier are required. Min. recommended amplifier: 72 Vrms, 102 Vpk, 18.0 A; equivalent to 1100 W @ 4 Ω, with correct RMS & peak limiter settings


Recommended ASCENDO Amplifiers

(With DSP-4D: AIA2-6004), DSP4-10K2


Measured Data

SPL Peak (Peak / Half Space 2pi)

Measured Data 136 dB @ 63 Hz 120 dB @ 32 Hz


Frequency Range

Measured Data (without DSP) 60 Hz - 400 Hz / -3 dB 28 Hz - 500 Hz / -15 dB


Power Handling

4000 W


Efficiency

93 dB / 1 W/m 4 pi, 99 dB / 1 W/m 2 pi


Impedance

4 Ω


Directivity Horizontal x Vertical in deg°

360°


Max Linear Air Volume Displacement

1.13 US. liq. gal. | 4.27 L


Input

Input Terminal

Neutrik Speakon


Dimensions & Weight

Dimensions (W/H/D) mm (Without Grille)

530 | 1150 | 380 (Height without feet: 1100)


Dimensions (W/H/D) inch (Without Grille)

20 14/16 | 45 4/16 | 14 15/16 (Height without feet: 43 5/16)


Packing Dimensions (W/H/D) mm

700 | 1250 | 500


Packing Dimensions (W/H/D) inch

27 9/16 | 49 3/16 | 19 11/16


Weight

108.03 lbs | 49 kg


Gross Weight

127.87 lbs | 58 kg


Design & Mounting

Enclosure

Internally braced MDF


Finish

Structural paint black


Mounting

Floorstanding with feet


Name

The THE18 SUB PRO PASSIVE SEALED is supplied with a front cover as standard


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