Introducció
The TOA Electronics D-901 US Modular Digital Mixer is a versatile audio processing unit designed for a wide range of installed sound applications, including audio/visual systems and houses of worship. Its modular architecture supports up to twelve microphone/line inputs and eight line outputs, offering extensive flexibility for signal routing and processing. The D-901 integrates advanced audio tools such as automixing, feedback suppression, multi-band parametric filters, compressors, limiters, noise gates, crossovers, and delays to optimize sound quality and system performance.
This manual provides essential information for the proper installation, operation, and maintenance of your D-901 Digital Mixer.
Característiques clau
- Disseny modular: Supports flexible configurations with up to 12 inputs and 8 outputs.
- Funcionament intuïtiu: Control via front panel display and dedicated controls.
- Auto-Mixing: Facilitates automatic level adjustments for multiple microphones.
- Supressió de comentaris: Automatically identifies and attenuates up to 12 problematic frequencies.
- Comprehensive Audio Processing: Includes compressors, gates, crossovers, multi-band filtering, parametric, high/low-pass, all-pass, and notch filters, horn EQ, high/low shelving, and output delay.
- Input and Output Channel Metering: Visual indication of signal levels.
- Preajustos de memòria: 16 internal memories for storing and recalling various signal routing and parameter configurations.
- Efecte d'eco: Provides vocal enhancement capabilities.
Configuració
1. Desembalatge i inspecció
Carefully remove the D-901 mixer from its packaging. Inspect the unit for any signs of damage that may have occurred during transit. Retain all packaging materials for future transport or storage.
2. Instal·lació física
The D-901 is designed for standard 19-inch rack mounting. Secure the unit using appropriate rack screws. Ensure adequate ventilation around the unit to prevent overheating.
3. Connexió d'alimentació
Connect the supplied power cord to the AC inlet on the rear panel of the D-901 and then to a grounded 230VAC, 50/60Hz power outlet. Ensure the power switch on the front panel is in the OFF position before connecting to power.
4. Input/Output Module Installation
The D-901 features a modular design. Install the required input and output modules into the designated slots on the rear panel. Refer to the module-specific instructions for proper installation and configuration.
5. Connexions d'àudio
Connect your audio sources (microphones, line-level devices) to the input connectors on the installed input modules. Connect your audio destinations (amplifiers, recording devices) to the output connectors on the installed output modules. Use high-quality shielded cables to minimize noise and interference.
6. Connexions de control
For remote control, connect an RS-232 cable to the serial port on the rear panel for PC control software integration, or utilize the contact-closure terminals for external control devices as needed.
Funcionament del mesclador
This image displays the front panel of the TOA Electronics D-901 US Modular Digital Mixer, featuring its display screen, control buttons, input/output level meters, and rotary knobs for input and output adjustments. The unit is designed for rack mounting.
1. Encès
After all connections are made, switch the power button on the front panel to the ON position. The display will illuminate, indicating the unit is operational.
2. Controls del tauler frontal
- Pantalla de visualització: Shows current settings, menus, and metering information.
- Botons de navegació: Used to navigate through menus and adjust parameters.
- Botons rotatius: Provide fine control over input and output levels, and other adjustable parameters.
- Mesuradors de nivell d'entrada/sortida: Indicate the signal strength for each channel.
3. PC Control Software
For advanced configuration and control, connect the D-901 to a computer via the RS-232 port and use the dedicated PC control software. This software allows for detailed parameter adjustments, system design, and off-site programming.
4. Basic Signal Routing
Utilize the front panel controls or PC software to establish input-to-output routing. The D-901 supports full input-to-output matrixing, enabling flexible signal distribution for multi-zone or room-combining applications.
5. Audio Processing
Access the various audio processing tools through the menu system. Configure parameters for automixing, feedback suppression, equalization (parametric, high/low-pass, etc.), compression, limiting, noise gating, and delay as required for your specific audio environment.
6. Saving and Recalling Memories
The D-901 can store up to 16 internal memory presets. Once a desired configuration is achieved, save it to a memory slot for quick recall. This is particularly useful for different event setups or room configurations.
Manteniment
1. Neteja
Regularly clean the exterior of the D-901 with a soft, dry cloth. For stubborn dirt, a slightly damp cloth with a mild, non-abrasive cleaner can be used. Ensure no liquid enters the unit. Avoid using harsh chemicals or solvents.
2. Ventilació
Ensure that the ventilation openings on the unit are not obstructed. Proper airflow is crucial for maintaining optimal operating temperature and preventing component damage.
3. Actualitzacions de firmware
Check the TOA Electronics website periodically for any available firmware updates. Updates can provide new features, performance enhancements, or bug fixes. Follow the instructions provided with the firmware update carefully.
Resolució de problemes
- Sense energia:
- Verify the power cord is securely connected to both the unit and the power outlet.
- Comproveu el funcionament de la presa de corrent.
- Ensure the front panel power switch is in the ON position.
- Sense sortida d'àudio:
- Confirm all audio cables are correctly connected to inputs and outputs.
- Check input and output levels on the D-901 and connected devices.
- Verify signal routing within the D-901 to ensure inputs are correctly assigned to outputs.
- Ensure no mute functions are active on any channels or outputs.
- Àudio distorsionat:
- Check input levels to prevent clipping (indicated by red peak lights). Reduce gain if necessary.
- Inspect audio cables for damage or poor connections.
- Review processing settings (e.g., compressor thresholds, EQ settings) that might be causing distortion.
- Problemes de comentaris:
- Ensure the Feedback Suppression function is enabled and configured correctly.
- Adjust microphone placement relative to loudspeakers.
- Redueix el guany del micròfon.
If problems persist, consult the TOA Electronics website for further support or contact an authorized service center.
Especificacions
| Característica | Especificació |
|---|---|
| Font d'alimentació | 230VAC, 50/60Hz |
| Consum d'energia | 27W |
| Resposta de freqüència | 20Hz - 20kHz, ±1dB (+4 dB* input) |
| Els canals d'entrada | Màx. 12 canals, construcció modular (mòduls opcionals) |
| Canals de sortida | Màx. 8 canals, construcció modular (mòduls opcionals) |
| Feedback Suppression Function | 12 filters (auto/dynamic) |
| Auto-Mixing Group | 4 grups |
| Temperatura de funcionament | +5 °C a +40 °C |
| Acabar | Panel: Aluminum, hair-line finish, black. Others: Pre-coated steel plate, black, 30% gloss |
| Dimensions (L × A × P) | 482.6 × 132.6 × 320 mm (excluding projection) |
| Pes | 15.21 lliures (6.9 kg) |
Garantia i Suport
The TOA Electronics D-901 US Modular Digital Mixer is covered by a five-year product warranty des de la data de compra. Aquesta garantia cobreix els defectes de materials i de mà d'obra en ús normal.
For technical support, service, or warranty claims, please contact your authorized TOA Electronics dealer or visit the official TOA Electronics weblloc web amb informació de contacte i recursos.
