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Atlas Sound DSP8807 Digital Controlled Sound Masking Processor (Discontinued)
Part # DSP8807
Model # DSP8807

The Atlas Sound DSP8807 Digital Controlled Sound Masking Processor is an 8 channels independent on-board digital class-D amplifier that is capable of delivering 50W RMS at 70.7V output. Additionally The volume control for paging in each zone can be individually controlled in 1dB increments from 15dB to -65dB.

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Description

Details

The DSP8807 has 8 channels of independent on-board digital class-D amplifiers that are capable of delivering 50W RMS at 70.7V output. Additionally a simultaneous audio line level output rated at 1V/600Ω (nominal) per zone is available for driving higher power amplifiers. The DSP8807 also has two independent uncorrelated pink noise generators which are random and non-repeating up to 215 hours with EQ adjustments programmable on a per zone basis.

The DSP8807 provides dynamic control and management based on IEEE802.1 AVB standards (Audio-Video Bridging) with independent 1⁄3 Octave (28) band EQ *(Filter type is Butterworth at 19dB and Linkwitz-Riley at 24dB) and Parametric EQ for calibration of all PA, ambient level sensing and automatic level control on a per zone basis. The volume control for paging in each zone can be individually controlled in 1dB increments from 15dB to -65dB.

The DSP8807 GUI is called the ‘Sound Media Interface'. The software has the ability to expand up to (253) systems with over 2,000 zones (2,048) with primary and secondary assignment in a zone paging dialing plan. It also provides the ability to set up "All zone" page, "Group zone" page (up to 32 groups) and "Single zone" page with an architectural dialing plan (2-digit DTMF) set up in the GUI. Each DSP8807 is capable of managing remote ambient level sensing microphones (ALM-1) for each zone (x8) wired via a single CAT5e cable up to 1,000 feet from the DSP8807 for automatic adjustment of the masking level based on real time noise levels with set up and control via the GUI.

Features

Features

  • 8 Channels of Random Pink Noise Generator Non-Repeating Up to 215 Hours
  • 8 Audio Outputs of 50 Watts RMS Digital Class-D Amplification at 85% Efficiency
  • 8 Audio Line Outputs at 1V/600Ω (Nominal) for Unlimited Power Per Zone
  • IEEE802.1 AVB (Audio Video Bridging) Technology for Time Aligned Networking of Multiple Units
  • AVB Operation Allows IP Based Paging Via Ethernet Connection
  • Telco Paging Input (Loop Start) With 2 to 5 Digit DTMF (Touch Tone) Dial Plan Defined In GUI
  • 8 Ambient Sensing Microphone Inputs (RJ45) for Automatic Level Sensing (6dB) and Control
  • Multiple Audio Source Inputs for Background Music, and Paging
  • Zone Expansion from 1 to 2,048 Via Standard CAT5e – CAT6 Cabling (Up to 253 Systems)
  • UL / CUL / FCC and CB (International) Listed
Specification
System Performance / DSP Processors
Dynamic Range>102dB A-Weighted
Frequency Response80Hz–20kHz (±3dB) at Rated Output
Distortion THD+N.001% Typical at +4dBu, 1kHz,0dB Gain
Input Sensitivity≤ 1.0% at 1kHz at Rated Output
Interchannel Crosstalk> 80dB Typical
Crosstalk Input To Output> 80dB
Channel Separation> 100dB at 1kHz (In Thru Out)
Common Mode RejectionRation (CMRR)> 50dB, 80Hz – 20kHz Typical> 55dB at 1kHz
Processor Capacity264 MIPS, 528MFLOPS,Continuous Operation
Sample Rate Audio Conversion48kHz
D/A Converter Type (Audio)24-bit Sigma Delta
D/A Performance DynamicRange (Converter)> 100dB A-Weighted
A/D Performance Dynamic Range> 110dB A-Weighted
Non-Volatile MemoryMemory Storage For AllPrograms & Set Up ProtectedFor 24 Hours In Power BrownOut, Interruption
Non-Volatile MemoryComputerShut Down. Data Settings Goodfor Ten Years W/O Refresh
DSP Manual RestartFront Restart Manual Button ToReload DSP’s
CODEC – DSP ProtectionAll I/O Protected With BuffersFrom Spikes and Transients orSneak Currents
System Inputs
Power AC MainsIEC 3-pin with Ground, 100VAC-240VAC, 50Hz-60kHz withON/OFF Manual Switch WithReplaceable Fuse
Network – DataRJ45 Module Jack (EIA 568B)
Telco Loop Start2-Pin Dockable Keyed Connector
Input Transformer600Ω
Ring Voltage105V – 14V (POTS – VoIP)
DTMF Dial PlanSingle, Group, or All Page
Microphone3-Pin Dockable Keyed Connector
Background MusicRCA Connector 10kΩ(Sum to Mono)
Master Override2-Pin Dockable Keyed Connector(1V – 70.7V nominal)
Ambient Sensing MicrophonesRJ45 Modular Jack (EIA 568B)No Polarity
System Outputs
Speakers2-Pin Dockable Keyed Connector(70.7V at 50 Watts RMS)
Audio Line level3-Pin Dockable Keyed Connector(1v nominal)
Microphone Frequency Level80Hz – 18kHz
Music80Hz – 20kHz
Line out80Hz – 18kHz
Telco250Hz – 4kHz
Network system linkRJ45 Modular Jack (EIA 568B)
System Amplifiers
Frequency Response80Hz – 20kHz, (±.25dB)
Total Distortion.001% Typical at +4dB, 1kHz,0dB Gain
Transformer Output70.7V and IV Line Level
Efficiency85% or Better
Gain ControlAdjustable to 34dB
Power SupplyUL / CUL /CE Recognized
Input Impedance50kΩ
Output Impedance
Carrier Frequency400kHz
Peak Current1.2A
MTBF (Mean Time Between Failure)100,000 Hours
EMC / EMI RadiationFCC Part 15 Class B, EN6100,CISPR 22
System Mechanical Data
Material (Outer Housing)CRS (Cold Roll Steel) 18AWG(.047" Nominal)
FinishFlat Black Powder Coat WithZinc Undercoat CorrosionResistant
Printed Circuit BoardsUL Recognized UL94VO
Electronic ComponentsRoHS
Operating Temperature0˚ to +50˚C
Storage Temperature-40˚ to +85˚C
Humidity95% Non-Condensing (Max.)
Dimensions
(H x W x D)
3.5" (88.9 mm) x 19" (482.6 mm) x 14" (358mm)
Weight33 lbs (14.97 kg)
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