The24 SUB PRO PASSIVE SEALED infrasub

The24 SUB PRO PASSIVE SEALED infrasub is a statement.

Its huge cone surface area and huge 90 mm of linear stroke – represents a world record for cinema subwoofers – allow it to move a gigantic volume of 10 liters of air per stroke to pressurize the room. Due to its ultra-low resonance frequency and its sealed enclosure design the group delay is several times faster than the smaller 18″, 15″ or 12″ subwoofers at the same frequency. Also the acoustic power output per cubic inch is by far in favour of this unique design compared to stacked multiple smaller subwoofers.

Its ingenious design allows the The24 SUB PRO to produce frequencies in the infrasonic frequency range with authority, reaching down lower than subwoofers with a smaller diaphragm surface ever will. At the same time this infrasub renders those notes with much more power, structure and resolution.

The The24 SUB PRO ideally suits not only all types and sizes of cinemas, but also high-end stereo systems. Much of the spacial room information of the recording envirnment in a great audiophile recording is contained in the sub 30Hz audio band. You will hear more details in mid and high frequencies. TECHNICAL DATA
Speaker type

24″ forward-firing woofer, with dual 5″ voice coil

Xmax

45 mm excursion each direction (90 mm linear), voice coil remaining in homogeneous magnetic field, linear and lowest distortion

Passive | Active

Passive

Recommended amplifiers

2 Amp. channels are required. minimum recommended amplifier voltage swing: 2 x 109 Vrms, 154 Vpk, 27,3 A; equivalent to 3000W@4Ohms per channel, total 6000W with correct RMS & Peak limiter settings (up to 450V = 20kW peak)

Recommended ASCENDO amplifiers

DSP4-10K2

Principle

Sealed

SPL (Peak / half space 2 pi)

Measurement data
140 dB @32Hz and up
120 dB @20 Hz
104 dB @10 Hz

Frequency range

“Measurement Data (without ext. DSP)
28 Hz – 500 Hz / -3 dB
20 Hz – 500 Hz / -15 dB”

Efficiency

90 dB / 1W/m

Power handling

2 x 2500 W

Impedance

Dual voice coil, 4 Ω each

Air volume displacement

9,9 L / in comparison 18″ standard cinema subwoofer 1,1 L

Directivity horizontal x vertical in Deg°

360°

Input terminal

Neutrik NL4 MP

Enclosure

Internally braced birch ply and MDF

Width

29,53 ” | 750 mm

Hight

43,31 ” | 1100 mm

Hight with feet

44,29 ” | 1125 mm

Depth without grill

19,69 ” | 500 mm

Depth with plug

19,69 ” | 500 mm

Weight

255,74 lbs | 116 kg

Finish

Structural paint black

Custom colour options

Piano lacquer, colour of choice, matt or other finishes upon request

Shape customization

Upon request

Mounting

Floor standing with feet

Technical modifications subject to change without further notice

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