1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Ashly Protea 4.8SP Loudspeaker System Processor. The Protea 4.8SP is a professional-grade digital signal processor designed for live sound environments and fixed installations, offering advanced audio processing capabilities for loudspeaker management.
2. Safety Information
Please read and understand all safety instructions before operating this device. Failure to do so may result in injury or damage to the equipment.
- Power Source: Connect the unit only to the specified AC power source (100-240VAC, 50-60Hz).
- Ventilation: Ensure adequate ventilation. Do not block ventilation openings.
- Moisture: Do not expose the unit to rain or moisture.
- Servicing: Refer all servicing to qualified service personnel.
- Grounding: Always ensure proper grounding to prevent electric shock.
3. Package Contents
Verify that all items are present in the package:
- Ashly Protea 4.8SP Loudspeaker System Processor
- Power Cord
- USB Cable
- User Manual (this document)
4. Product Overview
4.1 Front Panel
The front panel provides access to all essential controls and indicators for real-time monitoring and adjustments.
Figure 1: Front view of the Ashly Protea 4.8SP, showing the LCD display, input/output meters, navigation buttons, and USB port.
- LCD Screen: Displays current settings, menus, and parameters.
- Input/Output Meters: LED indicators for signal levels.
- Navigation Buttons: For menu navigation and parameter adjustment (Esc, Enter, Gain, EQ, Delay, Xover, Mute, Link).
- USB Port: For connecting to a computer for software control.
- Input/Output Select Buttons: To select specific channels for adjustment.
4.2 Rear Panel
The rear panel houses all audio input and output connectors, as well as power and communication ports.
Figure 2: Rear view of the Ashly Protea 4.8SP, showing balanced XLR inputs (A, B, C, D), balanced XLR outputs (1-8), USB port, RS-232 port, and AC power inlet.
- Inputs (A, B, C, D): Four balanced XLR input connectors.
- Outputs (1-8): Eight balanced XLR output connectors.
- USB Port: For connecting to a computer for software control.
- RS-232 Port: For serial communication and control.
- AC Power Inlet: For connecting the power cord.
5. Setup
5.1 Physical Installation
The Protea 4.8SP is designed for standard 19-inch rack mounting. Ensure sufficient space for ventilation around the unit.
- Mount the unit securely in a standard equipment rack using appropriate rack screws.
- Allow at least 1U of space above and below the unit for proper airflow, especially in enclosed racks.
5.2 Audio Connections
Use high-quality balanced XLR cables for all audio connections.
- Connect your audio source(s) (e.g., mixing console) to the INPUTS (A, B, C, D) on the rear panel.
- Connect the OUTPUTS (1-8) on the rear panel to your power amplifiers or other audio destinations.
5.3 Power Connection
- Ensure the unit's power switch is in the OFF position.
- Connect the supplied power cord to the AC Power Inlet on the rear panel and then to a grounded AC outlet.
5.4 Software Installation (Optional)
For advanced control and programming, install the Ashly Protea software on your computer.
- Download the latest Protea software from the official Ashly website: ashly.com/software-downloads/
- Install the software following the on-screen instructions.
- Connect your computer to the Protea 4.8SP using the supplied USB cable (either front or rear panel USB port).
- Launch the Protea software to establish communication with the device.
6. Operating Instructions
6.1 Powering On/Off
- To power on, flip the power switch on the rear panel to the ON position.
- To power off, flip the power switch to the OFF position.
6.2 Front Panel Control
The LCD screen and navigation buttons allow direct control over all processing parameters.
- Use the Input Select buttons (A, B, C, D) to choose the input channel you wish to configure.
- Use the Output Select buttons (1-8) to choose the output channel.
- Press the dedicated function buttons (Gain, EQ, Delay, Xover, Mute, Link) to access specific processing blocks.
- Use the rotary encoder and Enter/Esc buttons to navigate menus and adjust parameter values displayed on the LCD.
- The Recall button allows loading saved presets, and Save allows storing current settings.
6.3 Software Control (Protea Software)
The Protea software offers a graphical user interface for intuitive and detailed control of all system parameters.
- Once connected via USB, the software will detect the 4.8SP.
- The software provides visual representations of crossovers, EQs, compressors, and delays, making configuration easier.
- You can create, save, and recall complex system configurations.
- Password Protection: The software allows you to set a password to protect your settings from unauthorized tampering.
6.4 Key Processing Features
- Crossover: Configure frequency division for multi-way loudspeaker systems.
- EQ (Equalization): Parametric and graphic EQ options for precise tonal shaping.
- Compression/Limiting: Dynamic range control to protect loudspeakers and maintain consistent levels.
- Delay: Time alignment for loudspeakers, crucial for phase coherence in complex systems.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or solvents.
- Ventilation: Periodically check that ventilation openings are clear of dust and debris.
- Cable Connections: Ensure all audio and power cables are securely connected and free from damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power | Power cord disconnected; Power switch off; Blown fuse. | Check power cord connection; Ensure power switch is ON; Consult qualified technician for fuse replacement. |
| No Audio Output | Incorrect input/output routing; Mute engaged; Gain set too low; Faulty cables. | Verify routing in software or front panel; Check mute status; Increase gain; Test/replace cables. |
| Software Not Connecting | USB cable issue; Driver not installed; Software version mismatch. | Try a different USB port/cable; Reinstall Protea software and drivers; Ensure software is up-to-date. |
| Distorted Audio | Input/output levels too high (clipping); Incorrect processing settings. | Reduce input/output gain to prevent clipping (monitor meters); Review EQ, compression, and crossover settings. |
9. Specifications
- Model Name: 4.8SP
- Speaker Type: Processor
- Product Dimensions: 8.5"D x 19"W x 3.5"H
- Item Weight: 9.39 Pounds
- Connectivity Technology: USB
- Audio Output Mode: Balanced Stereo
- Mounting Type: Rack Mount
- Power Source: Corded Electric
- Audio Latency: 682 Milliseconds
- Processor Count: 1
- Manufacturer: Ashly
10. Warranty and Support
The Ashly Protea 4.8SP comes with a Limited Warranty. For detailed warranty information, please refer to the warranty card included with your product or visit the official Ashly website.
For technical support, service, or further inquiries, please contact Ashly Audio directly:
- Ashly Audio Website: ashly.com/support/
- Refer to the website for contact information and the latest support resources.
