Performance criteria: The loudspeaker system shall meet the following performance criteria: - Frequency response shall be within -6 dB at 49 Hz to 18 kHz; - Useable frequency range shall be within -10 dB at 44 Hz to 20 kHz; - Nominal coverage within -6 dB shall be 90 degrees horizontal and 18 degrees vertical; - Maximum SPL at one meter shall be 131 dB peak. AC power requirements: The loudspeaker system shall have a universal power supply capable of operating with input AC power voltages ranging from 100 VAC to 240 VAC at 50 ? 60 Hz. Power consumption at one-eighth power shall be 2.3 A at 100 VAC, 2.01 A at 120 VAC, and 1.13 A at 230 VAC. Electronics type and features: The loudspeaker system shall incorporate a Class D amplifier. The amplifier shall have an output power of 1000 watts continuous (500 W low frequency channel, 500 high frequency channel). The loudspeaker system shall incorporate circuitry enabling crossovers and time alignment as well as the following proprietary digital signal processing (DSP) functions: - Digital Extension and Excursion Processing (DEEP), a non-distorting low-frequency EQ circuit that provides increased low-frequency extension without distortion or over-excursion; - Intrinsic Correction, which evens the dispersion of energy throughout the physical listening area of the loudspeaker. I/O and connectors: The loudspeaker system shall have the following input and output connections: - LINE IN shall be via a female 3-pin XLR jack. When the connection is balanced, the input shall have an impedance of 40 kilohms. When the connection is unbalanced, the input shall have an impedance of 20 kilohms. - LINE OUT shall be via a male 3-pin XLR jack providing balanced full-range line-level output of the signal input into LINE IN; - REMOTE GAIN connection shall be via a 3-pin "Euro" jack; - AC IN connection shall be a blue locking powerCON? power connector keyed for input; - AC OUT connection shall be a gray locking powerCON power connector keyed for output. Controls and indicators: The loudspeaker system shall include the following controls: - POWER switch shall be an on/off switch for the loudspeaker system electronics; - ATTEN knob shall set the amount of attenuation applied to the input signal that is sent to the amplifier; - LF SETTING switch, which shall select one of three low frequency modes, either EXT SUB for when the loudspeaker system is used in conjunction with an external subwoofer, DEEP (for Digital Extension and Excursion Processing), or NORM (neither of the above); - ARRAY SIZE switch, which shall optimize the sound reproduction characteristics of the loudspeaker system for use in an array of the selected number of elements; - FRONT LED switch shall select whether the front LED tracks the rear-panel Power LED or the rear-panel Limit LED, or is off. The loudspeaker system shall include the following indicator LEDs: - POWER shall indicate that the power switch is in the ON position and the unit is not in Standby; - STANDBY shall indicate that the loudspeaker system is in standby mode, which conserves energy when the unit is not in active use; - LIMIT shall indicate that limiting has taken place to avoid damage to the amplifier or loudspeaker; - SIGNAL shall indicate the presence of signal at the Line In connector; - Front LED shall track the rear-panel Power LED, the rear-panel Limit LED, or be off, depending on the position of the Front LED switch. Cooling and protection: The loudspeaker system shall incorporate a 50 mm variable speed fan for on-demand cooling. The loudspeaker system shall incorporate amplifier protection circuitry including thermal limiting, output overcurrent protection, overtemperature muting protection, and GuardRail. The loudspeaker system shall incorporate transducer protection circuitry including thermal limiting and excursion limiting, which prevents woofer over-excursion. Dimensions and weight: The loudspeaker system shall have the following physical characteristics: - Height shall be 15 inches (381 mm); - Width shall be 23.4 inches (594 mm); - Depth shall be 16.6 inches (422 mm); - Net weight shall be no more than 55 lbs (25 kg).