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The Blue Sky International Star System One Sub 12D - 12" Digital Powered Subwoofer is designed for professional monitoring and personal listening applications. The unit features both XLR analog inputs and AES/EBU digital inputs with a switch that will automatically select the digital signal when both sources are connected. It also features analog and digital outputs for connecting to additional subwoofers. A bank of DIP switch allows you to select +24 dBu/+12 dBu max analog output, +24 dBu/+12 dBu max analog input, sub direct digital in L/R, and sub crossover mode on / sub direct mode on.
The subwoofer utilizes a 12" high excursion cast frame woofer with a ferrite motor powered by a 400W amplifier to deliver a frequency response of 25 to 200 Hz ±1.5 dB. For circuit design, it features FR4 6-layer circuit boards, Burr-Brown 24-bit 192 kHz A/D/A conversion, and a Cirrus Logic Digital receiver and sample rate converter. The subwoofer can also operate in "pure-digital" mode at either 48 or 96 kHz sample rate wherein the input from the AES/EBU digital receiver is routed directly to the subwoofer's DAC.
The devices includes a 2.1 Bass Mass Management system with variable crossover frequency adjustments, low pass filters, high pass filters, a 1/3 octave 31-band digital graphic equalizer, pink noise generator, selectable parametric equalizer, room correction, and an adjustable gain control. The DSP settings can be controlled using Blue Sky's BOO optimization software on a PC computer. The subwoofer is designed and assembled in the USA.
Connects digital sources via AES/EBU connections
Switches between +24 dBu/+12 dBu max analog output, +24 dBu/+12 dBu max analog input, sub direct digital in L/R, and sub crossover mode on / sub direct mode on
Provides 24-bit 192 kHZ analog to digital and digital to analog conversion
Pure Digital Mode
Operates at either 48 or 96 kHz and routes the input from the AES/EBU digital receiver is routed to the subwoofer's DAC
BOO Optimization Software
Provides variable crossover frequency adjustments, low pass filters, high pass filters, a 1/3 octave 31-band digital graphic equalizer, pink noise generator, selectable parametric equalizer, room correction, and an adjustable gain control from a PC over USB connection
In the Box
Blue Sky International Star System One Sub 12D - 12" Digital Powered Subwoofer
Limited 2-Year Warranty
Table of Contents
Material of Construction
12" cast frame woofer with ferrite motor
2x XLR-3F analog input (Sub/R and L stereo pair) 2x XLR-3M analog output 1x XLR-3F AES digital input
1x XLR-3F AES L/R digital output 1x XLR-3F AES sub out
1x USB type B port for DSP calibration
6-layer Burr-Brown 192 kHz/24-bit A/D/A conversion
Cirrus Logic digital receiver and sample rate converter
Sample Rate (Audio)
Up to 24-bit 192 kHz resolution Pure-Digital mode at 48 and 96 kHz