VU-mètre Fosi Audio LC30 AmpManuel d'utilisation du boîtier de sélection d'amplificateur pour haut-parleurs

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The Fosi Audio LC30 is a versatile VU meter amplifier and speaker selector switch box designed to enhance your home audio experience. It features dual large VU meters for visual audio feedback and offers flexible connectivity for various amplifier and speaker configurations.

This unit supports a wide range of amplifiers, including traditional Class A, B, AB, and D, as well as tube amplifiers. Its robust design incorporates high-quality components such as 390Ω protective load resistors, thickened copper foil circuits, premium speaker binding posts, and switching relays, ensuring minimal impact on sound quality and supporting up to 250W power transmission per channel.

The LC30 provides convenient control via both front panel buttons and an included remote control, allowing for easy switching between two amplifiers and two sets of speakers. Adjustments for backlight brightness and needle sensitivity are also straightforward, making it an ideal component for audiophiles seeking both functionality and aesthetic appeal.

Figure 1 : Face avant view of the Fosi Audio LC30, showcasing its dual VU meters and control buttons.

Figure 2: The LC30 integrated into a home audio system, demonstrating its role as an amp/speaker selector.

Figure 3 : Un aperçu détaillé view of the LC30's large VU meters, highlighting their visual appeal and functionality.

Figure 4: The LC30 unit with its remote control, illustrating the dual control options for user convenience.

Figure 5: Close-up images of the LC30's superior quality components, including high-quality relays, 390Ω load resistors, thickened circuit traces, and user-friendly terminal design.

Figure 6: The LC30's large chassis design allows it to accommodate other Fosi Audio compact amplifiers, demonstrating its compatibility and versatility.

Installation

Before connecting your Fosi Audio LC30, ensure all audio equipment is powered off to prevent damage.

De liaison Amplificateurs et haut-parleurs

1. Connexion électrique : Connect the provided USB-C power cable to the DC 5V USB-C Power Input on the rear panel of the LC30. Connect the other end to a suitable 5V power source (e.g., a USB wall adapter, not included).
2. Amplifier Connections:
   • Connectez votre premier amplifier (Amplifier A) to the "Amplifier A Connectors" on the rear panel of the LC30. Ensure correct polarity (red to red, black to black).
   • Connectez votre deuxième amplifier (Amplifier B) to the "Amplifier B Connectors" on the rear panel of the LC30. Ensure correct polarity.
3. Connexions des haut-parleurs :
   • Connect your first pair of passive speakers (Speaker 1) to the "Speaker 1 Connectors" on the rear panel of the LC30. Ensure correct polarity (red to red, black to black) for left and right channels.
   • Connect your second pair of passive speakers (Speaker 2) to the "Speaker 2 Connectors" on the rear panel of the LC30. Ensure correct polarity for left and right channels.

Figure 7: Diagram illustrating the front and rear panel layout of the LC30, showing all inputs, outputs, and controls.

Figure 8: A schematic diagram showing typical connection scenarios for the Fosi Audio LC30 with various audio sources, amplifiers, and passive speakers.

Mode d'emploi

Commandes du panneau avant

• VU-mètre : Displays the audio output level.
• Pointer Sensitivity Adjustment Knob: Located on the top right of the unit, this knob allows you to adjust the sensitivity of the VU meter needles to match your amplifier's output and your visual preference. Turn clockwise to increase sensitivity, counter-clockwise to decrease.
• Speaker Indicators (1, 2): Red LEDs indicate which speaker output is currently active.
• Speaker Switch Button: Press this button to toggle between Speaker 1 and Speaker 2 outputs.
• Power/VU Meter Brightness Control Button: Press to cycle through five levels of VU meter backlight brightness. Long press to power the unit on or off.
• Amplifier Indicators (A, B): Red LEDs indicate which amplifier input is currently active.
• Amplifier Switch Button: Appuyez sur ce bouton pour basculer entre Ampamplificateur A et AmpEntrées de l'amplificateur B.

Fonctions de la télécommande

The included remote control provides convenient access to key functions:

• Bouton d'alimentation : Allume ou éteint l'appareil.
• Speaker Selection (1, 2): Directly select Speaker 1 or Speaker 2 output.
• Amplifier Selection (A, B): Directly select Amplifier A or Amplifier B input.
• Réglage de la luminosité (+/-) : Adjusts the VU meter backlight brightness.
• Sensitivity Control (SPK, AMP): Adjusts the VU meter needle sensitivity. Refer to the manual for specific remote button mapping for sensitivity adjustment.

Entretien

To ensure the longevity and optimal performance of your Fosi Audio LC30, follow these maintenance guidelines:

• Nettoyage: Use a soft, dry cloth to clean the exterior of the unit. Avoid using harsh chemicals, solvents, or abrasive cleaners, as they may damage the finish.
• Ventilation: Assurez-vous que l'appareil bénéficie d'une ventilation adéquate. Ne bloquez aucune ouverture de ventilation. Évitez de placer l'appareil dans des espaces clos ou sur des surfaces molles susceptibles d'entraver la circulation de l'air.
• Environnement: Keep the unit away from direct sunlight, heat sources, excessive dust, moisture, and extreme temperatures.
• Relations: Vérifiez régulièrement tous les branchements de câbles pour vous assurer qu'ils sont bien fixés et exempts de corrosion.
• Mise hors tension lorsqu'il n'est pas utilisé : If the unit will not be used for an extended period, it is advisable to power it off and disconnect it from the power source.

Dépannage

If you encounter issues with your Fosi Audio LC30, please refer to the following common troubleshooting steps:

• Pas d'alimentation :
  • Ensure the USB-C power cable is securely connected to both the LC30 and a working 5V power source.
  • Essayez un autre câble USB-C ou un autre adaptateur secteur.
  • Vérifiez que la prise de courant est fonctionnelle.
• Pas de sortie audio :
  • Vérifiez tous les haut-parleurs et amplifier connections for correct polarity and secure fit.
  • Assurez-vous de la bonne amplifier (A or B) and speaker (1 or 2) are selected using the front panel buttons or remote.
  • Vérifiez que votre ampLes amplificateurs sont allumés et fonctionnent correctement.
  • Confirm that the audio source connected to your amplifier is playing and its volume is turned up.
• VU Meters Not Moving or Incorrectly:
  • Adjust the Pointer Sensitivity Adjustment Knob on the top right of the unit.
  • Ensure there is an active audio signal passing through the LC30.
  • Check the brightness setting of the VU meters using the Power/VU Meter Brightness Control Button.
• La télécommande ne fonctionne pas :
  • Vérifiez que les piles de la télécommande sont neuves.
  • Point the remote directly at the Infrared Receiver on the front panel of the LC30.
  • Éliminez tout obstacle entre la télécommande et l'appareil.

If the issue persists after attempting these steps, please contact Fosi Audio customer support for further assistance.

Caractéristiques

Qu'y a-t-il dans la boîte

The Fosi Audio LC30 package includes the following items:

• Fosi Audio LC30 Unit
• Télécommande
• Câble d'alimentation USB-C
• Manuel de l'utilisateur (ce document)

Figure 9: Visual representation of the items included in the Fosi Audio LC30 product box.

Garantie et assistance

Fosi Audio products are designed for reliability and performance. While specific warranty details may vary by region and retailer, Fosi Audio typically offers support for its products.

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please visit the official Fosi Audio webConsultez leur site web ou contactez directement leur service client. Conservez votre reçu d'achat comme preuve d'achat pour toute réclamation au titre de la garantie.

Vous trouverez plus d'informations et de ressources d'assistance sur le site web. Boutique Fosi Audio sur Amazon.