EDISON Professional ST-4000 - User Manual

This document provides a comprehensive user manual for the ST-4000 Powered Speaker System by Edison Professional, outlining its functions, usage, and maintenance guidelines.

The ST-4000 is a powered speaker system designed for various audio applications, offering robust sound output and versatile connectivity. Its primary function is to amplify and reproduce audio from multiple sources, making it suitable for events, performances, or general entertainment. The system is equipped with an integrated amplifier and a range of input options to accommodate different audio devices.

Function Description

The ST-4000 speaker system is designed to deliver high-quality amplified sound. It features independent volume controls for each input, allowing users to precisely mix audio from various sources. Treble and bass tone settings are also available, enabling sound customization to suit different preferences and environments. A key feature is the microphone priority function, which automatically lowers background music when a microphone is in use, ideal for announcements or vocal performances. The system also includes a charging indicator, providing visual feedback on the battery status.

Usage Features

The ST-4000 offers a wide array of usage features for diverse applications:

• Input Versatility: The speaker provides multiple input options. For microphones, it includes two 1/4-inch jack connectors, allowing for dual microphone setups. A 1/4-inch jack is also available for guitar input, catering to musicians. For general audio playback, there's an RCA input and an external battery input, enhancing its portability and adaptability. An MP3 input via AUX is also present for connecting portable music players.
• Bluetooth Connectivity: The ST-4000 incorporates Bluetooth functionality, enabling wireless audio streaming from compatible devices such as smartphones and computers. The pairing process is straightforward: users initiate Bluetooth mode on the speaker, then search and connect from their external device.
• TWS (True Wireless Stereo) Pairing: For an enhanced audio experience, two ST-4000 units can be paired wirelessly using the TWS feature. This allows for a stereo sound setup, where one speaker acts as the primary unit and the other as a secondary, expanding the soundstage. The pairing involves connecting the first speaker to a device, then activating the mode button on the second speaker to link it to the first.
• MP3 Player Control: The speaker features an integrated MP3 player with controls for USB, SD card, Bluetooth, and FM radio sources. Users can navigate tracks, adjust volume, and switch modes directly from the control panel or via an IR remote. Functions like play/pause, next/previous track, and repeat mode are readily accessible.
• Placement Recommendations: The manual provides guidance on optimal speaker placement. It can be positioned on the floor, a tabletop, or a standard tripod speaker stand. Users are advised to avoid placing the speaker in room corners or directly against a wall, as this can lead to muddy or indistinct low-frequency output. However, if low-frequency reinforcement is desired, placing it against a wall can be beneficial. It is also crucial to avoid placing microphones too close to the speaker to prevent echo and potential equipment damage.
• Power Supply: The unit operates on 110-240V/50-60Hz AC power and includes a power cord for connection. It also supports a 12V DC power supply, indicated by a dedicated input.

Maintenance Features

Proper maintenance ensures the longevity and optimal performance of the ST-4000:

• Moisture Protection: Users are strongly advised to protect the loudspeakers from moisture. If used outdoors, ensuring they are under cover is critical to prevent damage.
• Authorized Service: In case the equipment requires revision or repair, it is essential to contact an authorized dealer. Opening the case by unauthorized personnel voids the warranty and may lead to malfunctions.
• Cleaning: The speaker should only be cleaned with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials that could damage the finish or internal components.
• Temperature Extremes: The device should not be used or stored near wet places or exposed to extreme cold. If operation in a cold environment is necessary, the voice coils should be warmed up slowly by sending a low-level signal through them for approximately 15 minutes before full use.
• Power Cord Care: If the power cord becomes damaged, it must be replaced by the manufacturer, a service agent, or qualified personnel to mitigate risks.
• Hearing Protection: The manual emphasizes the importance of avoiding prolonged exposure to excessive noise, as hearing damage can be undetectable until it's too late. A list of sound levels and their potential danger under constant exposure is provided to guide users in protecting their hearing.

The ST-4000 is designed for user-friendly operation and robust performance, with clear instructions for setup, use, and care to ensure a long and enjoyable experience.