PURCHASE DESCRIPTION.pdf

1. REQUIREMENTS

The contractor shall provide equipment that fulfills DPRI and PA system requirements.

Please refer to Independent Government Cost Estimate (IGCE) for a full PA system Bill of Material (BOM). Any non-brand name item must meet the Salient Specifications listed in section 4 for consideration.

2. SALIENT SPECFICATIONS

Digital Signal Processor o DSP shall support 12 input channels and 12 output channels o DSP shall provide input/output matrixing capabilities o DSP shall support balanced and unbalanced audio input/output o DSP shall provide output audio ducking o DSP shall support external controller for selecting audio presets remotely o DSP shall provide signal processing features (high pass filter/low pass filter)

Speakers (300W continuous, 750W program @ 11 ohms) o Speaker shall support 70.7/140V operation o Speaker shall provide an Axial Sensitivity (1W/1m) of 117 dB SPL (250 Hz to

4kHz speech range) o Speaker shall provide outdoor weather-proof construction and high resistance to harsh environments with a minimum of IP65W rating o Speaker shall support 12 AWG copper at audio input o Speaker shall have a nominal impedance of 11 ohms (minimum impedance of

10.8 ohms @ 570 Hz) o Speaker shall provide a nominal beamwidth of 60 x 20 degrees (HxV) o Speaker shall support an operating range of 400 Hz to 8 kHz/600 Hz to 4kHz (+/-

4 dB) Speakers (150W @ 8 ohms) o Speaker shall support 70.7/100V operation o Speaker shall provide an Nominal Sensitivity of 95 dB SPL voice audio at 2.83V o Speaker shall provide outdoor weather-resistant construction with a minimum of

IP55W rating o Speaker shall support NL4 Speakon-type input connector o Speaker shall provide a nominal beamwidth of 90 x 60 degrees (HxV) o Speaker shall support an operating range between 80 Hz to 16 kHz o Speaker shall provide autoformer taps with winding ratios at:

70V: 120W, 60W, 30W, 15W 100V: 120W, 60W, 30W

Speakers (400W @ 8 ohms) o Speaker shall support 70.7/100V operation o Speaker shall provide an Nominal Sensitivity of 100 dB SPL voice audio at 2.83V o Speaker shall provide outdoor weather-resistant construction with a minimum of

IP55W rating o Speaker shall support NL4 Speakon-type input connector o Speaker shall provide a nominal beamwidth of 100 x 100 degrees (HxV) o Speaker shall support an operating range between 90 Hz to 16 kHz o Speaker shall provide autoformer taps with winding ratios at:

70V: 200W, 100W, 50W, 25W 100V: 200W, 100W, 50W

Amplifiers o Amplifier shall support 70.7/140V operation o Amplifier shall provide a minimum of 1200W power output per channel o Amplifier shall provide at least two (2) input and two (2) output channels o Amplifier shall support stereo, bridge-mono, and parallel mode operation