Electronics / PA Systems
User Manual for FBT MIURA 1208I Amplifier
Quick guide for the FBT MIURA 1208I 8-channel digital network amplifier. Includes technical specifications, installation guidelines, control panel overview, and connection details.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The FBT MIURA 1208I is a professional 8-channel processed digital network amplifier designed for fixed installations. It features a 1U rack-mount chassis, Dante audio streaming, and TCP/IP network control via the INFINITO software suite. The unit supports both low-impedance (4-16 Ohm) and high-impedance (70/100V) systems with asymmetric loading capabilities.
Product Overview
The amplifier is designed for demanding audio applications such as small theatres, auditoriums, conference rooms, and gyms. It utilizes a switch-mode power supply with Power Factor Correction (PFC) for efficient power management and transient response. The front panel includes an OLED display and a push-button encoder for intuitive control.
Control Panel and Connections
The rear panel provides comprehensive connectivity for professional setups:
- Power: IEC C20 power connector.
- GPIO: Euroblock for GPIO and fault relay configuration.
- Network: EtherCON ports for network control and Dante audio.
- Outputs: Euroblock connectors for amplifier output channels (1-4 and 5-8).
- Inputs: Euroblock for balanced analog input channels (1-4).
- Digital I/O: Euroblock for AES3 digital audio I/O.
- Relay: RJ45 output for relaying balanced analog channels.
Technical Specifications
Key operational parameters include:
- Output Power (LoZ): 8 x 150W (4-16 Ohm).
- Output Power (HiZ): 4 x 300W (70/100V).
- Frequency Response: 20Hz - 20kHz (-0.5dB, 3dB below rated power).
- S/N Ratio: >106dB (A-weighted).
- Operating Voltage: Universal 100-240 Vac @ 50/60Hz.
- Cooling: Variable speed fan.
- Protection: Short Circuit, DC, Undervoltage, Temperature, Overload.
Installation and Safety
The unit is designed for 1U rack mounting. Important: The supplied power cable is rated IEC C20. For use in European Union countries, replace the IEC C20 connector with a C16 connector compliant with local regulations.
Manufacturer information
FBT Elettronica SpA
Practical help
Common problems
Power cable incompatibility in EU
The supplied cable is IEC C20. In EU countries, replace the connector with a C16 connector compliant with local regulations.
System idle power consumption
Enable the Auto-Standby/Auto-Wake function to allow the system to consume less power when idle.
Before use
- Verify mains voltage is within 100-240 Vac range.
- Ensure rack space is available for 1U mounting.
- Check that speaker impedance matches the selected mode (4-16 Ohm for LoZ or 70/100V for HiZ).
- Connect network cables to EtherCON ports for Dante/AES70 control.
- Configure GPIO settings via software if external control is required.
Specs in practice
- LoZ (Low Impedance)
- Standard speaker operation (4, 8, or 16 Ohm loads).
- HiZ (High Impedance)
- 70V/100V line operation for distributed audio systems.
Images and diagrams
- Front panel features an OLED display and a push-button encoder for onboard control.
- Rear panel contains all input/output connections, including Euroblock terminals for speakers and analog inputs, and EtherCON ports for networking.
Model compatibility
- Compatible with INFINITO software suite for PC.
- Supports AES70 network interface.
- 4-channel DANTE audio streaming receiver (24-bit, 48-96kHz).
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.