Event Introduces More Affordable Sub

December 02, 2002

Event Electronics began shipping the 20/20 S250 System Subwoofer, a small-profile version of their flagship 20/20/15 System Subwoofer. The 20/20 S250 is designed for control rooms and project studios where space is at a premium, but complete control over system bass response and Dolby LFE (Low Frequency Effects) channel information is required. The unit is aimed squarely at recording musicians who previously shied away from surround-sound monitoring due to high costs—the 20/20 S250 is projected to have a street price of well under $500.

The new subwoofer features the same custom 15" long throw woofer and 250W linear power amplifier as the 20/20/15, providing the high SPL low frequency output necessary for multi-channel production work. The bass management circuitry is identical as well, with six discrete, active, balanced inputs with pass-throughs, independent controls for the LFE and mains channels, and continuously variable phase control, which lets the listener compensate for phase differences that arise from subwoofer/mains-to-listener placement.

Signals appearing at the S250's LFE input are fed to the 250W linear amplifier through a dedicated crossover. The other five inputs—designed to accommodate the five mains channels—are summed into an additional bass channel and fed to the amplifier via a second, continuously variable crossover. By setting the crossover to match the natural low frequency roll-off of the mains monitors, users can extend the overall low frequency response of their entire system well below the natural roll-off of the mains.

20/20 S250 System Subwoofer Specifications

Low Frequency Driver: Long-throw 15" coated paper cone with foam surround and high-temperature voice coil
Frequency Response: 28Hz - 120Hz, -3dB
Amplifier Power: 250W, Linear
LFE Crossover: -3dB at 120Hz, 3rd order
Monitor Blend Crossover: -3dB, variable 30Hz - 80Hz, third order
Maximum Sound Pressure Level: 117dB peak @ 1 meter
Noise: >100dB below full output, 1kHz BW
Inputs: One LFE channel, five mains monitor channels. All inputs 40k ohm balanced via gold combination XLR-1/4" connectors
Monitor Input Sensitivity: 1.1V at any Monitor Input produces full output with Monitor Group Input Sensitivity control at maximum.
LFE Input Sensitivity: 0.35V at any LFE Input produces full output with LFE Input Sensitivity control at maximum
Pass-Through Outputs: One LFE channel pass-through, five mains monitor channel pass-throughs, all via male XLR connectors
Controls: LFE Input Sensitivity, Polarity Invert, Phase Delay, Monitor Group Input Sensitivity, Monitor Input Disable, Monitor-Sub Crossover Tuning, Mains
PowerIndicators: Power ON/Overload LED
Polarity: Positive signal at any + input produces outward LF cone displacement (with Polarity Invert off)
Cabinet: 3/4" vinyl-laminated MDF, internally insulated
Dimensions: 20.25" W x 17.5" H x 17" D
Weight: 64lbs

Specifications subject to change without notice.

For more information, visit their web site at http://www.event1.com/.

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