Do you have a question about the Bosch PRAESENSA PRA-AD604 and is the answer not in the manual?
Essential safety guidelines and warnings for installation and operation of the system.
Essential network configurations and considerations for optimal PRAESENSA performance.
Guidelines and rules for selecting appropriate PRAESENSA amplifiers for a system.
Methods for calculating battery capacity and understanding operating conditions.
Detailed step-by-step calculation for determining required battery capacity.
A simplified method for calculating battery capacity using table values.
Guidance on calculating UPS capacity for system backup power.
Mandatory safety ground connection for PRAESENSA power amplifiers for electrical safety.
Details on supervision, pilot tone modulation, and mounting provisions.
Details on independent mains power supplies and backup battery solutions.
Instructions for installing the battery, fuse, and temperature sensor for backup power.
Explanation of battery charging stages and monitoring/fault reporting.
Procedures for installing the fuse at the battery or power supply side.
Connecting amplifiers and system controllers to the PRA-MPS3 power outputs.
Details on IP-network connection, business, and emergency operation features.
Details on business/emergency operation, connection, and labeling features.
Features for PA/VA systems and fault tolerance like PoE and fiber support.
Features including LC connectors, SFP socket fit, and support for different fiber types.
Details on mains power supply features, protections, and voltage adjustment.
Troubleshooting steps for when the system does not respond, potentially due to RSTP issues.
Troubleshooting steps for devices losing connection to the system controller.
Troubleshooting steps when devices are not visible in the firmware upload tool.
Steps to resolve power issues for call stations, amplifiers, and system controllers.
Procedures for replacing system controller, amplifier, and multifunction power supply.
Procedure for replacing a defective call station in a running system.
Checklist for system architecture, installation, network, and device compliance.
Network requirements for EN 54 compliance, including switch and cabling recommendations.
Requirements for emergency call station configuration and installation.
Requirements for amplifier supervision and using PRA-MPS3 power supply.
| Audio Channels | 4 |
|---|---|
| DSP | Yes |
| Type | Amplifier |
| Input Voltage | 24 VDC |
| Network | Ethernet |
| Frequency Range | 20 Hz to 20 kHz |
| Operating Temperature | -5°C to +45°C |
| Storage Temperature | -20°C to +70°C |
| Humidity | up to 95% non-condensing |











