Donner DDA-20 Mini Electric Drum Amplifier

1. Introduction

Thank you for choosing the Donner DDA-20 Mini Electric Drum Amplifier. This compact and powerful amplifier is designed to provide clear and dynamic sound for electronic drums, keyboards, and other musical instruments. Its portable design makes it ideal for home practice, street performance, and small band sessions. This manual provides essential information for the safe and effective use of your DDA-20 amplifier.

2. Safety Instructions

• Read all instructions carefully before operating the amplifier.
• Keep this manual for future reference.
• Do not expose the amplifier to rain or moisture to prevent fire or electric shock.
• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

3. Package Contents

Verify that all items are present in the package:

• 1 x Donner DDA-20 20W Amplifier (Black)
• 1 x Original Adapter (18V/3A)
• 1 x Donner Operation Manual (This document)

Note: An audio cable is not included and must be purchased separately if needed for wired connections.

4. Product Overview

The Donner DDA-20 amplifier features a compact design with essential controls for sound adjustment and multimedia playback.

Figure 4.1: Donner DDA-20 Amplifier and Power Adapter.

This image displays the Donner DDA-20 amplifier in black, showcasing its compact, wedge-shaped design. The front features a speaker grille with the 'DONNER' logo. The top panel includes control knobs. A power adapter with its cable is also shown, indicating the amplifier's power source.

4.1 Front Panel Controls

Figure 4.2: Detailed view of the DDA-20 control panel.

This image provides a close-up view of the amplifier's control panel. From left to right, it shows the INPUT jack, a VOL (Volume) knob, LOW and HIGH equalization knobs, a B-MODE/Multimedia control knob, and an ON/OFF power switch. The 'DONNER DDA-20 Professional Electric Drum Amplifier' text is visible.

• INPUT Jack: Connect your electronic drum set, keyboard, or other instrument here.
• VOL (Volume) Knob: Adjusts the overall output volume of the amplifier.
• LOW Knob: Adjusts the bass frequencies of the sound.
• HIGH Knob: Adjusts the treble frequencies of the sound.
• B-MODE / Multimedia Control Knob: This multi-function knob controls multimedia playback (volume, track selection, play/pause) when connected wirelessly.
• POWER Switch: Turns the amplifier ON or OFF.

4.2 Speaker Configuration

Figure 4.3: Internal speaker components of the DDA-20.

This diagram illustrates the internal speaker configuration of the DDA-20 amplifier. It highlights a 6.5-inch woofer for low frequencies and a 2.0-inch tweeter for high frequencies, indicating a two-way speaker system designed for full-range sound reproduction.

4.3 Ergonomic Design

Figure 4.4: DDA-20 amplifier with an elevated angle.

This image shows the DDA-20 amplifier from a side perspective, emphasizing its unique elevated angle. This design is intended to direct sound upwards towards the user, enhancing sound clarity and detail during practice or performance.

5. Setup

1. Power Connection: Connect the provided 18V/3A power adapter to the DC IN jack on the amplifier and then plug it into a standard electrical outlet.
2. Instrument Connection:
   • For wired connection: Use a standard instrument cable (not included) to connect your electronic drum module or keyboard to the INPUT jack on the amplifier.
   • For wireless connection: The DDA-20 supports wireless multimedia input. Refer to the 'Operating Instructions' section for details on pairing your device.
3. Placement: Place the amplifier on a stable, flat surface. The unique elevation angle is designed to project sound effectively towards the listener.
4. Initial Settings: Before powering on, ensure the VOL, LOW, and HIGH knobs are set to their minimum (0) positions to avoid sudden loud sounds.

6. Operating Instructions

6.1 Powering On/Off

• To power on, flip the POWER switch to the 'ON' position.
• To power off, flip the POWER switch to the 'OFF' position.

6.2 Adjusting Volume

• After powering on, slowly turn the VOL knob clockwise to increase the volume to your desired level.
• Turn the VOL knob counter-clockwise to decrease the volume.

6.3 Tone Adjustment (Equalization)

• Use the LOW knob to adjust the bass frequencies. Turn clockwise for more bass, counter-clockwise for less.
• Use the HIGH knob to adjust the treble frequencies. Turn clockwise for more treble, counter-clockwise for less.

6.4 Wireless Multimedia Control

Figure 6.1: Multimedia Control Knob functions.

This image highlights the multimedia control knob on the DDA-20 amplifier. It shows icons indicating its functions: VOL +/- for volume adjustment, Previous/Next song for track selection, and Play/Pause for media playback control. This knob allows for wireless control of connected devices.

• Pairing: Activate wireless functionality on your mobile device. The amplifier should appear as "DDA-20" or similar. Select it to pair.
• Volume Control: Rotate the B-MODE knob to adjust the volume of the wirelessly connected device.
• Track Selection: Press the B-MODE knob left or right to skip to the previous or next track.
• Play/Pause: Press the B-MODE knob to play or pause media playback.

7. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use liquid cleaners or aerosols.
• Storage: When not in use for extended periods, store the amplifier in a dry, cool place, away from direct sunlight and extreme temperatures.
• Protection: The amplifier's edges are reinforced with hard material and rubber pads for protection. Avoid dropping or subjecting the unit to severe impacts.

8. Troubleshooting

If the problem persists after attempting these solutions, please contact Donner customer support.

9. Specifications

10. Warranty and Support

Your Donner DDA-20 amplifier comes with a warranty. Please refer to the included Donner Warranty Card for specific terms and conditions regarding your purchase. For technical support, service, or further inquiries, please visit the official Donner website or contact their customer service department.

Donner Official Website: www.donnerdeal.com