Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of the C2G Legrand 40881 50W Audio Amplificador. Això amplifier is designed to support distributed audio systems in various environments, including classrooms and conference rooms, and is suitable for plenum space installations. It delivers 50 watts of power (25 watts per channel) and adheres to industry-standard 25/70 volt designs.
Producte acabatview
The C2G 40881 Audio Amplifier offers robust features for versatile audio integration:
- Àudio Amplificació: Amplifies dynamic microphone or stereo audio signals, providing 25 watts of power per channel (50W total) to a sound reinforcement system.
- Input Versatility: Accepts 3.5mm stereo audio, RCA stereo audio, and 3.5mm microphone inputs.
- Mixing Function: Automatically mixes audio from all three inputs (3.5mm, RCA, microphone) and sends the combined signal to the speaker outputs.
- Opcions de control: Supports RS232 control or signals from an industry-standard volume control.
- Public Address (PA) Sensor: Automatically mutes audio inputs when a public address signal is detected, ensuring clear announcements.
- Accessory Power Output: Provides 12 Volts DC and 500mA, suitable for powering compatible controllers like the TruLink A/V controller.
- Disseny durador: Features a built-in mounting bracket for secure installation.
Què hi ha a la caixa
- C2G 40881 50W Audio Ampmés viu
- Adaptador de CA
- Cable d'alimentació CA
- Mounting Ears (2)
- 9-pin Captive Screw Plugs (2)
- Manual d'usuari (aquest document)

Imatge 1: Frontal view of the C2G 40881 Audio Amplifier, showing power indicator, output indicator, and adjustable knobs for RCA, 3.5mm, and Mic In levels.

Imatge 2: posterior view of the C2G 40881 Audio Amplifier, displaying 3.5mm input, RCA input, balance mic input, page sensitivity switch, L/MONO switch, speaker outputs, DC out, DC in, volume, RS232, and PA in terminals.

Image 3: Included accessories: AC adapter, AC power cord, two mounting ears, and two 9-pin captive screw plugs for terminal connections.
Configuració
- Desempaquetar components: Carefully remove all items from the packaging and verify that all components listed in "What's in the Box" are present.
- Muntatge (opcional): If permanent installation is desired, use the provided mounting ears to secure the amplifier in a suitable location. Ensure adequate ventilation around the unit.
- Connectar els altaveus: Connect your 25V or 70V speakers to the "SPEAKER OUTPUTS" terminals on the rear of the amplifier using appropriate speaker wire. Ensure correct polarity (+ to + and - to -). The amplifier provides 25 watts per channel.
- Connectar fonts d'àudio:
- For stereo audio, connect your source (e.g., media player, computer) to the ENTRADA RCA o el ENTRADA 3.5 mm al panell posterior.
- For a dynamic microphone, connect it to the BALANCE MIC IN 3.5mm input on the rear panel.
- Connect Remote Control (Optional):
- If using an RS232 control system, connect the control cable to the RS232 bloc de terminals.
- If using a standard volume control, connect it to the VOLUM bloc de terminals.
- Connect PA System (Optional): If integrating with a public address system, connect the PA signal to the PA IN bloc de terminals.
- Connexió d'alimentació: Connect the AC adapter to the "DC IN" port on the amplifier and then plug the AC power cord into a standard electrical outlet. The ampel lifier s'encén.
Important: Ensure all connections are secure before powering on the unit. Refer to the wiring diagrams for specific terminal block connections if available in supplementary documentation.
Instruccions de funcionament
- Encès/apagat: El amplifier powers on automatically when connected to an electrical outlet. There is no physical power button on the unit itself.
- Ajust dels nivells d'entrada: Use the dedicated knobs on the front panel to adjust the input levels for RCA, 3.5mm, and MIC IN sources.
- RCA: Adjusts the volume for the RCA stereo input.
- 3.5 mm: Adjusts the volume for the 3.5mm stereo input.
- MIC IN: Adjusts the volume for the microphone input.
Nota: El amplifier's mixing function combines all active input signals. Adjust individual levels to achieve the desired audio balance.
- Control de volum de sortida: The overall output volume can be controlled via the connected remote wired wall plate controller or RS232 system, if installed.
- Sensibilitat de la pàgina: The "PAGE SENSITIVITY" switch on the rear panel adjusts the sensitivity of the PA sensor. This determines how readily the amplifier mutes other audio when a public address signal is present. Adjust as needed for your PA system.
- Commutador mono/estèreo: The "L/MONO" switch on the rear panel allows you to select between stereo output or a summed mono output.
Manteniment
- Neteja: Disconnect power before cleaning. Use a soft, dry cloth to wipe the exterior of the amplifier. Do not use liquid cleaners or aerosols, as they may damage the unit.
- Ventilació: Assegureu-vos que el amplifier's ventilation openings are not blocked. Proper airflow is essential to prevent overheating.
- Gestió de cables: Comproveu periòdicament totes les connexions dels cables per assegurar-vos que estiguin ben fixades i que no estiguin danyats.
- Emmagatzematge: Si emmagatzema el ampdurant un període prolongat, desconnecteu-lo de l'alimentació i guardeu-lo en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder al ampmés viu. | Cable d'alimentació no connectat correctament. La presa de corrent no està activa. | Ensure the AC adapter and power cord are firmly plugged into the amplifier and a working electrical outlet. Test the outlet with another device. |
| Sense sortida de so. | Incorrect speaker connections. Input source not connected or active. Input level knobs set too low. Remote volume control set to minimum or muted. PA sensor active. | Verify speaker wiring and polarity. Confirm audio source is connected and playing. Increase RCA, 3.5mm, and MIC IN level knobs. Check remote volume control settings. Check PA IN connection and page sensitivity. |
| So distorsionat o de mala qualitat. | Input levels too high (clipping). Connexions de cable soltes. Desajust d'impedància d'altaveu. | Reduce input level knobs. Comproveu totes les connexions dels cables d'àudio i d'altaveus. Ensure speakers are compatible with 25V/70V output. |
| PA system not muting audio. | PA IN not connected correctly. Page sensitivity set too low. | Verify PA IN wiring. Adjust the "PAGE SENSITIVITY" switch on the rear panel. |
Especificacions
| Número de model | 40881 |
| Potència de sortida | 50W (25W per channel) |
| Vol. De sortidatage | 25V / 70V (selectable) |
| Entrades | 3.5mm Stereo Audio, RCA Stereo Audio, 3.5mm Microphone |
| Interfícies de control | RS232, Wired Wall Plate Controller (Volume) |
| Potència de sortida d'accessoris | 12V CC, 500mA |
| Dimensions del producte | 9.75 x 8.75 x 3 polzades |
| Pes de l'article | 1.6 unces |
| Fabricant | Cables To Go (C2G) |
| Complint amb TAA | Sí |
Garantia i Suport
The C2G 40881 Audio Amplifier is thoroughly inspected and tested to ensure quality and comes with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official C2G weblloc.
For technical support, troubleshooting assistance, or warranty claims, please contact C2G customer service. Contact information can typically be found on the C2G weblloc web o a l'embalatge del producte.
Recursos en línia: Per obtenir més informació i suport, podeu visitar el Botiga C2G a Amazon.





