Accento Dynamica ADA30 User manual

ADA30
INSTRUCTION MANUAL
COMPACT 15W STEREO AMPLIFIER
CLASS-D

• Palm-size Class-D 30 watt amplier
• Battery or AC powered power supply included for perfect portability
• 90% Amp e󰀩ciency for longer battery life
• Superior sound quality
• Soft turn-on eliminates annoying speaker pop
• CE and RoHS rated design
• Intelligent short-circuit protection
• Intelligent over-temperature protection
• Connects to any passive 4/8Ω speakers
• Accepts standard audio line output from any sound system
• ADA30 Amplier 2x 15Wrms Digital Stereo Amplier
• 12V @ 2A switch mode power supply 240Vac
• To prevent re or electrical hazard do not disassemble this product.
• Do not expose the unit to water or moisture.
• Do not place liquid on or close to unit.
• Do not place unit on or near an open ame or heat source.
• Keep product free from dust and debris.
• Place unit on a stable and level platform.
• Do not place heavy items on top of unit.
• Do not use excessive force when pushing the unit buttons.
• Do not attempt to pull the power cord when removing it from power outlet.
• Do not use damaged or defective power cables.
• Unplug the power cable if the unit is not in use.
• Clean with a damp cloth only.
Accento Dynamica ADA30
Features
Includes
Safety Instructions
Thank you for your purchase of the Accento Dynamica ADA30 Class D Digital Audio
Amplier. Don’t let the compact size fool you; the ADA30 amplier has the heart
of a serious performer. Inside is a proprietary Class D amplier circuit, designed
to create more e󰀩cient and higher quality audio amplication using digital signal
processing. The ADA30 is remarkably a󰀨ordable, yet still delivers a crisp, vibrant
signal that compares to most high-quality linear ampliers. Perfect for home or at
play applications as the unit operates on batteries for portable use or the included
mains power adapter can be used to power the ADA30 for indoor use.

Connection and operation of the ADA30 is simple and straight forward. On the front of
this amp you will nd an on/o󰀨 switch with analogue volume control. The back panel
features stereo 3.5mm input, perfect for using with audio devices, tablets, PCs, etc.
Speaker connection is via 4 spring terminals. Each accepting bare wire up to 18AWG.
A robust 12 VDC, 2.0A power adapter comes with this amp to ensure that it is given the
right voltage and current to function at peak performance.
1. Power/Volume Control
2. Power Indicator
3. Speaker Terminals
4. Power Input
5. 3.5 mm Audio Input
6. Battery Compartment
(bottom of unit)
I. Attach an audio device such as MP3 player, PC, etc.to the 3.5 mm audio input.
II. Attach two 4 or 8 ohm speakers to the speaker terminals.
Pay attention to speaker polarity; red to red (+) and black to black (-).
III. Install 8 “AA” batteries or connect the 12 VDC power supply.
IV. Turn on the amplier and set to appropriate volume level.
V. Enjoy your Class D Digital Audio Amplier.
Connection
Batteries
In Base

Power output: 2 x 15 watts
Typically THD < 0.1%
4Ω 12W THD = 1%
4Ω 16W THD = 10%
8Ω 7W THD = 1%
8Ω 10W THD = 10%
SNR: 103db, A Weighted
Frequency response: 20 - 20,000 Hz
Dynamic Range: 102dB
Channel Separation: 70dB
Signal Input: 3.5mm stereo signal input
Input Impedance: 2K Ohm
Signal output: 4-wire signal output. Bare-wire
Power Supply: DC12V 25Wnom, 30Wmax
DC Plug: O/D 5.5mm, Centre Pin 2.1mm (Positive)
Dimensions Case: 150mm(w) x 50mm(h) x 90mm(d)
Weight: 0.225kg
Specications
The highly e󰀩cient audio amplication of the Accento Dynamica ADA30 provides an
amazing soundstage and presence combined with enhanced clarity and sound quality;
all at an amazingly low price. The ADA30 features the TDA7491 developed for its
e󰀩ciency and performance. The class-D audio amplier is designed for home audio
applications and is fully protected against faults with built-in thermal and short-circuit
protection. The high e󰀩ciency enables optional battery operation via eight AA batteries
in the base or use the included compact power pack for 240Vac operation. This is the
perfect stereo amplier for desktops or portable situations almost anywhere. It is small,
but generates powerful, pristine audio that belies its size and cost.
Operation