Extended low frequency Powered Subwoofer System

Recording Studio
Mastering Lab
Professional Surround Systems

  The Infrasub 18 PRO is a self powered professional subwoofer system employing bass management, hi pass filtered outputs, a sealed front firing 18" cone loudspeaker, and the INFRA dual integrator driving a 400 watt power amplifier providing a flat acoustical response down to 8 Hertz. Six inputs allow the combining of all the bass information on 5.1 surround programs and 2 level controls and a 10dB attenuator provide relative adjustment of the bass information from the 5 full range channels and the dedicated low frequency effect channel. 5 hi pass line level filtered outputs are provided for the upper range loudspeakers and a line level INFRA output is provided for additional INFRA bass speakers. Internally set Dynamic Filter protection maintains undistorted audio reproduction under accidental overload conditions. A remote indicator module is provided and may be placed in a convenient visible location to indicate the dynamic filter protection threshold has been reached.

Input Configuration:
6 Balanced XLR female line level

Output Configuration:
5 Balanced hi-pass XLR male line level
1 Balanced INFRA XLR male line level

HI-Pass Filter Frequency: - 3 dB @ 130 Hz/-6 dB @ 95 Hz

Hi Pass Filter Slope: 12 dB/octave

Hi Pass Gain: Unity

INFRA Output Mode: Sum of all inputs

INFRA Module: 8 Hz dual integrator

INFRA Frequency Response:
3 dB 8 Hz to 95 Hz (2p Steradians)
INFRA system -6 dB frequency 95 Hz (not adjustable)

INFRA Level Control:
Adjustable level control and 10 dB attenuator on Input F

INFRA Cutoff Frequency: 8 Hz or 20 Hz

INFRA Overload Protection: Preset threshold Dynamic Filter circuitry

RTI: Remote Threshold Indictor Threshold exceeded indication red LED

Amplifier Output Power: 400 Watts continuous sine wave

Fuse: 6.3 Amp GDC time-lag

Low Frequency Transducer: EL-18P 18" Cone

Magnetic Shield: Low flux leakage

Enclosure: 3/4" MDF

Finish: Black textured paint

Grille: Black nylon cloth on frame

Dimensions: 23.5"h x 21.25"w x 18.25"d
59.7cm x 54cm x 46.4cm

Weight: 92 lbs. - 41.73 kg

Shipping Dimensions: 29.35" x 26.5" x 23.25"
74.5cm x 67.3cm x 59.1cm

Shipping Weight: 104 lbs. - 47.1 kg


Download Datasheet
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Bag End Loudspeakers, USA
847 382 4550