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City of Santa Ana Public Library Renovation <br />Smith, Fause & McDonald Inc.Group 4 Architecture Research + Planning, Inc. <br />Conform SetASI #026 – August 72, 20254 Group 4 Project No. 22575-01 <br />SECTION 27 4116-14 INTEGRATED AUDIOVISUAL SYSTEMS AND EQUIPMENT <br />1.Drawing Reference: RDL <br />2.Features/Functions: <br />a.Audio distribution of up to 3 outputs <br />b.Balanced or unbalanced operation <br />c.Distribution with Impedance Conversion and Gain/Loss <br />3.Manufacturer: <br />a.Radio Design Labs ST-DA3 <br />b.Or equal <br />B.Digital Signal Processing (DSP) System <br />1.Drawing Symbol(s): DSP <br />2.Function/Features: <br />a.Implement functions shown on Drawings using Digital Signal Processing <br />(DSP) hardware and software. <br />b.System implements in software at least the following functions as indicated <br />on the plans: <br />1)AMIX - automatic microphone mixer - MIC and LINE INPUTS as <br />indicated <br />2)REMOTE - Remote power on/off, gain control, auxiliary mixer select, <br />System Mode - controlled through interface to Control System <br />specified elsewhere in this Section. <br />3)DELAY - multi-channel delay, output quantity as indicated with 0-100 <br />ms delay assignable to each output on selection of delay mode <br />operation. <br />4)LEVEL - Gain control under control of REMOTE <br />5)X02WAY 24dB - Crossover network, 2 port, 24 dB/octave <br />6)HP - High Pass Filter <br />7)LIM - Limiter <br />8)SHELF - Shelving Filter <br />9)FBX - Automatic Feedback Suppressor <br />10)PEQ* - Parametric Equalizer, where * indicates bands provided <br />11)MIX* - Mixer, where * indicates channel count <br />12)LP - Low pass filter <br />c.Field reconfigurable functions and parameters. <br />d.Performance: <br />1)Sample at 48 kHz or greater. <br />2)At least 20 bit input/output quantization. <br />3)Noise performance within 3 dB of theoretical limit. <br />4)Minimum of 24 bit internal processing. <br />5)Provide control with true status feedback. <br />e.Priority volume attenuator implemented as indicated on the <br />drawings/specification narrative. <br />f.Dante over Ethernet <br />3.Manufacturer - DSP System <br />a.QSYS. <br />b.Or equal. <br />2.4 ASSISTIVE LISTENING SYSTEM (ALS): <br />A.General <br />1.Provide Radio Frequency Type, Frequency Modulated <br />2.72 MHz Assistive Listening band. <br />3.Quantity of Devices: <br />B.ALS Transmitter