Martin Roland MA-3000HD

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Summary

Safety Information

General Safety Warnings

Covers electrical safety, handling precautions, and general warnings to prevent hazards and damage.

Voltage Selection

Instructions for selecting the appropriate voltage for the unit based on region.

Protective Measures

Guidance on protecting the unit from damage, including power cord, ventilation, and environmental factors.

1.Operating Guide

Microphone Controls

Details on microphone input sockets, gain, volume, balance, and tone controls.

Master and Headphone Controls

Master volume adjustments for microphones and music, and headphone output settings.

Echo and Music Controls

Controls for echo depth, tone, and music signal adjustments including volume, balance, and EQ.

Key Control and Power Functions

Functions related to key control, media input selection, recording, and power on/off.

2.Function of Rear Panel

Power Supply and Speaker Terminals

Details on AC power input, fuse holder, voltage selection, and speaker system terminals.

Audio, Video, and Digital Connections

Covers input/output for recording, sound effects, music sources, HDMI, video, and digital audio signals.

Microphone and Auxiliary Outputs

Information on heatsinking, auxiliary output, microphone signals, and signal ground.

3.Connecting Guide

System Connection Diagram

Illustrates the proper connections for microphones, speakers, and audio/video devices.

4.Remote Control

Remote Control Functions

Details the functions of each button on the remote control for operating the amplifier.

5.Caution

Operating Precautions and Safety Warnings

Important safety warnings regarding product handling, environmental conditions, and electrical safety.

6.Familiar Trouble and Solution

Troubleshooting Common Issues

Provides solutions for common operational problems like no sound, distortion, and frequency display issues.

7.Specifications

Technical Specifications

Lists key technical details including power output, sensitivity, frequency band, and dimensions.

The MA-3000HD is a professional digital mixing amplifier designed for both disco and Hi-Fi karaoke use. It offers a comprehensive set of controls for microphones, music, and echo effects, along with various input and output options for seamless integration into an audio-visual system.

Function Description:

The amplifier features multiple microphone input sockets, each with individual input signal attenuators, auto-gain level indicators, volume control, balance control, echo depth control, bass, mid-range, and treble adjustments. This allows for precise control over each microphone's sound.

For music, the amplifier includes controls for music signal volume, balance, bass, mid-range, and treble adjustments. It also has a "Disco position" for disco use and a "Hi-Fi position" for karaoke use, suggesting optimized sound profiles for different applications.

The echo section provides stereo or mono selection, echo volume control, and bass, mid-range, and treble adjustments for the echo effect, allowing users to customize the reverberation.

Master volume controls are available for both microphones and music, enabling overall level management.

The unit also includes a headphones output with a dedicated volume control and a music output switch for monitoring.

Key control features include an MP3-USB jack, a remote control sensor, and plug-in controls for VOD/DVD input signals, MP3/Bluetooth input signals, digital optical/coaxial input signals, and HD1/HD2 input signals. There are also controls for MP3 Bluetooth, recording, deleting record files, and a key display.

On the rear panel, the amplifier offers a variety of connectivity options:

AC Power Supply: Selectable for AC115V or AC230V, with a fuse holder.
Speaker Systems Terminal: Supports 4 to 8 ohms impedance for main amplifier output, with specific instructions for connecting two pairs of speakers (8 to 16 ohms recommended).
Heatsinking Blower Outlet: For cooling.
Auxiliary Output Terminal: Connects amplifier output to external amplifiers.
Recording Output Terminal: For recording amplifier output to a tape deck.
Pre-processing Output: For further signal processing.
Sound-Effect Device Input/Output: For connecting external sound effect devices like graphic equalizers.
Music Source Input: For connecting devices like VOD, DVD, etc.
HDMI Input and Output Interfaces: For high-definition audio/video connections.
Video Input/Output Jacks: For connecting to DVD, VOD, AUX, video tape, LD, and monitor TV.
Digital Coaxial Input Jacks: For digital audio input.
Digital Optical Input Jacks: For digital audio input.
MIC Signal Output: Outputs microphone sound only, without echo effect.
Rear Microphone Input Jacks: Additional microphone inputs.
Signal Ground: For grounding connections.

Important Technical Specifications:

Power Source: 110V/60Hz or 230V/50Hz (fixed at AC115V/60Hz for the described unit).
Music Power Output (Peak): 2000W.
Music Power Output (RMS): 800W + 800W.
MIC Input Sensitivity: 15mV.
External Devices Sensitivity: 250mV.
Signal/Noise Ratio (with IHF A Filter): 80dB.
T.H.D (1kHz, AUX 150mV INPUT): 0.1%.
Frequency Band: 25Hz~20kHz.
Mic. Tone Adjustment: Bass: 80Hz ± 15dB, Mid-range: 3.5Hz ± 8dB, Treble: 12Hz ± 15dB.
Echo Tone Adjustment: Bass: 80Hz ± 15dB, Treble: 12Hz ± 15dB.
Net Weight: 31LBS.
Dimension (Inch): 17(W) x 7(H) x 16(D).

Usage Features:

Remote Control: The device comes with a remote control that allows for various functions including recording, USB song deletion, MP3 player number selection, MP3 loop play (single and full), MP3 Bluetooth play (previous, next, suspend), MP3 stop, MP3 EQ function selection, input signal selection (USB/BT, Optical/Coaxial, HD1/HD2, VOD/DVD), main volume control, mute ON/OFF, and microphone volume control.
Digital Key Control: Features a 16-bit digital key control for adjusting the pitch of the music.
USB Playback: Includes an MP3-USB jack for playing music directly from USB devices.
Bluetooth Connectivity: Supports MP3 Bluetooth input for wireless music streaming.
Comprehensive Input/Output: A wide array of input/output options (HDMI, optical, coaxial, RCA, video) ensures compatibility with various audio and video sources.
Troubleshooting Guide: The manual provides a "Familiar Trouble and Solution" section to help users diagnose and resolve common issues like no sound, sound from only one channel, distortion, or issues with karaoke sound.

Maintenance Features:

Cleaning: The manual recommends cleaning the machine with a soft, dry cloth. For very dirty machines, a mild detergent can be used, but paint thinner or similar substances should be avoided to prevent damage to the finish.
Power Cord Protection: Users are advised to avoid stepping on or pressing the power cord with heavy objects and to pull the plug itself, not the wire, when disconnecting.
Ventilation: The unit must be set up in well-ventilated locations, with at least 10cm distance from walls. Discs and cloth should not be placed on the system, and ventilation should not be blocked by items like beds or carpets.
Protection from Heat and Moisture: The amplifier should be kept away from heat sources (radiators, heating elements) and direct contact with liquids.
Long-term Storage: If the system is not used for a long time, it should be unplugged.
Disassembly Warning: Users are explicitly warned not to remove the cover or disassemble the system to avoid electric shock, as internal parts can cause harm. Servicing should be referred to qualified personnel.
Grounding and Polarity: Proper grounding and polarity connections are emphasized to ensure optimal performance and safety.

The MA-3000HD is designed to be a robust and versatile amplifier for both home and professional karaoke and entertainment setups, offering detailed control and extensive connectivity.