Bayview Pro Audio - Big Blue: 5.1 System

Blue Sky Big Blue: Sub 15

SUB 15

Big Blue has been designed to integrate perfectly with Blue Sky's new SUB 15 Universal, 1000-Watt subwoofer. The SUB 15 Universal is a sealed box subwoofer, designed around a 15" forward-firing driver with a massive cast aluminum frame, dual 2.5" voice coils - which has almost 2.36" of excursion (peak to peak) and features an enormous 20+ Lbs. motor structure (total driver weight 36 Lbs.). One of the SUB 15 Universal's unique features is a switchable low frequency response characteristic, of either 30Hz to 200Hz +/-3dB or, in "extended LF mode", 20Hz to 200Hz +/-3dB (anechoic).

The extended mode is ideal for large rooms that don't exhibit the room gain phenomenon of smaller sealed spaces. In addition, the SUB 15 Universal also has built-in 2.1 bass management electronics with both a 4th order 80Hz Linkwitz-Riley low-pass filter and a 2nd order 80Hz high-pass filter that is compatible with Big Blue's bass-managed input (the SUB 15 Universal is also compatible with the SAT 6.5 and SAT 5).

The SUB 15 Universal is also the second subwoofer from Blue Sky which allows you to add true low frequency extension to your existing nearfield and mid-field monitors. To accomplish this, the SUB 15 Universal includes dualindependently tunable, state variable, high pass and low pass filters (50hz to 160Hz) with 4th order slopes.

SUB 15 Universal Active Subwoofer

Enclosure

.75" MDF with 1" front and rear baffle and internal bracing
Isolation feet included
Dimensions: 20.75" H x 18" W x 20.63" D (inc / heatsink and grill)
Weight 125 lbs. / 56.69 kg

15" Hemispherical Woofer

15-inch high excursion (2.36" peak to peak) woofer with a vented 20+ Lbs. motor (total driver weight = 36 Lbs.)
Cast aluminum frame
Dual 2.5" high temperature voice coils
Dual progressive spiders
Mica filled polypropylene cone w/ Santropene surround
Fully video shielded

Electrical Specification

Input Voltage 115/230 VAC 50/60Hz switchable
Wattage 1600 Watts
Fuse 115VAC 8A - 250 V 5x20mm (Time Delay or Slo-Blo)
230VAC 15A - 250 V 5x20mm (Time Delay or Slo-Blo)

Amplifier

Class D design
1000 Watts RMS into 4-Ohm
.1% THD + noise at rated power @ 1kHz
XLR balanced input
Adjustable gain control
Voltage Sensitivity 100mv=90dB SPL@1m

Switchable low frequency response characteristic:

Frequency Resp. 30Hz mode +/-3dB 30Hz to 200Hz
Frequency Resp. 20Hz mode +/-3dB 20Hz to 200Hz
Low Frequency Cutoff (20Hz mode) -3dB @ 20Hz (see figure 4 for specific measurement data)

Bass-Management Section

Input impedance: 20K balanced
Common mode rejection: 40dB typical @ 60Hz
Maximum Input Level: +24dBu balanced
Output Impedance: 200 Ohms balanced
Nominal gain: 0dB
SUB IN low pass filter: None
Input impedance 20K balanced
Common mode rejection 40dB typical @ 60Hz
Maximum Input Level +24dBu balanced
Output Impedance 200 Ohms balanced
Nominal gain 0dB
SUB IN low pass filter None

Switchable Filter Settings

BLUE SKY Mode
High Pass Filter: 80Hz 2nd Order
Low Pass Filter: 80Hz 4th Order
Universal Mode
Dual independently tunable state variable high pass and low pass filters
Frequency Range: 50Hz to 160Hz
Filter Slope: 4th Order

Blue Sky Big Blue: 5.1 System