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A44 Active Speaker Amplifier Board​

Compact 4-Channel Amplification Solution for Active Speaker Systems
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  • A44

  • Auway


Model

A44

A46

8Ω Stereo

4x400W

4x600W

4Ω Stereo

4x750W

4x1100W

8Ω Bridge

2x1500W

2x2100W

Channels

4

Frequency   Response

20~20KHz(-0.5dB)

THD+N

<0.02

Signal-to-Noise   Ratio

>105dB

Damping   Factor

>400

Separation

>60dB

Slew   Rate

>20v/μs

Sampling   rate

>384KHz

Output   Peak Current

65A

60A

Input   Impedance

20K/10K

Circuit   Type

Class D

Cooling

DC FAN

Input

XLR

Output

NL4MP

Function

Built-in German DSP Processor

Front   Panel Indicator

Protection/Peak Clipping/Signal/Preset/Power

Front   Panel Function

Power switch and volume knob control

Dimension

346x135x72MM

426x135x72MM

Power   AC

95~240V/50~60Hz,±10%






A44 4x400W Class D Module: Core Configuration with German DSP + Ultra-Compact 346x135x72MM Size


The A44 Professional Amplifier Module from Auway is a space-saving 4-channel solution tailored for active speakers. It delivers 4x400W continuous power @8Ω, 4x750W @4Ω, and 2x1500W @8Ω (bridged mono)—all in an ultra-compact 346x135x72MM form factor. At its core, the integrated German-engineered DSP processor (>384kHz sampling rate, >20V/μs slew rate) ensures precise signal processing, while Class D efficiency minimizes heat generation and power consumption. Professional connectivity includes XLR balanced inputs and NL4 SpeakON outputs, plus a temperature-adjusted DC fan for stable performance under heavy loads.


Active speaker amplifier


Core Advantages: Breakdown of Differential Selling Points


Ultra-Small 346x135x72MM Size: Seamless Integration for Space-Constrained Scenarios (Portable PA/DIY Speakers)

Unlike bulkier amplifiers, the A44’s compact dimensions eliminate the need for multiple single-channel units, reducing setup complexity and weight. It fits easily into portable PA rigs or custom DIY speaker enclosures—critical for users with limited installation space.


Built-In German DSP: Eliminates External Processors, Reduces System Costs & Simplifies Tuning

The integrated German DSP supports EQ tuning, preset management, and speaker protection, replacing the need for external signal processors. With >384kHz sampling rate, <0.02% THD (20Hz-20kHz), and >105dB SNR, it delivers studio-grade clarity, while >400 damping factor ensures tight, controlled bass response.


Class D High Efficiency: Low Heat Generation + Long-Hour Operation, Reduces Electricity Costs & Component Wear

Class D technology reduces power waste and heat output compared to traditional Class AB amplifiers. The DC fan only activates when necessary, minimizing component wear—ideal for extended use in restaurants, retail stores, or conference rooms.


60A Peak Current + Multi-Status Indicators: Reliable Protection for Professional Scenarios (Churches/Studios)

Front-panel indicators for Protection/Clipping/Signal/Preset/Power enable real-time status monitoring. Combined with 60A peak current capacity and built-in safeguards against short circuits and overloads, it ensures reliable performance in high-demand environments.


Application Scenarios: Precise Alignment with Usage Needs


Portable PA/Studio Monitors: <0.02% THD + 20Hz-20kHz (±0.5dB) Ensures Audio Precision

Portable PA Builds: Powers full-range speakers/subwoofers for small-to-medium events (outdoor gigs, community meetings) thanks to its compact size.

Studio Monitors: Delivers accurate sound reproduction for mixing, supported by low THD and flat frequency response.

Background Music Systems: >105dB SNR ensures clear, unobtrusive audio in restaurants, offices, or retail spaces.


Commercial Installations: DSP Tuning + 4-Channel Drive for Multi-Zone Sound Coverage

House of Worship Systems: Adapts to large sanctuaries via DSP tuning, ensuring speeches and music reach all attendees.

Conference Room Audio: 4-channel design powers multiple speakers, supporting presentations and video calls with balanced sound.

DIY/OEM Applications: Modular Design Lowers Customization & Production Barriers

DIY Speaker Projects: Hobbyists leverage professional specs (German DSP, Class D efficiency) for custom active speakers.

OEM Manufacturing: Modular design simplifies integration into branded active speakers, reducing production time and costs.


FAQ


A44 Bridged Mono Output: Is 2x1500W @8Ω Suitable for High-Demand Speakers?

In bridged mono mode, the A44 delivers 2x1500W @8Ω—ideal for powering large subwoofers or main PA cabinets in single-channel setups.


Does the A44 Require an External DSP? What Functions Does the German DSP (>384kHz Sampling Rate) Cover?

No—the integrated German DSP eliminates the need for external processors. It supports EQ adjustments, preset management, and speaker protection, all controllable directly via the front panel.


A44 Cooling System: Is the DC Temperature-Controlled Fan Quiet? Suitable for Quiet Scenarios (Studios)?

The temperature-adjusted DC fan maintains low noise levels (critical for studios/background music). It only increases speed when heat rises, ensuring quiet operation in noise-sensitive spaces.


A44 Compatible Impedance: What Power Output Corresponds to 4Ω/8Ω Speakers?

It works with 4Ω and 8Ω speakers: 4x750W @4Ω (stereo), 4x400W @8Ω (stereo), and 2x1500W @8Ω (bridged mono). Always match speaker impedance to avoid damage.

A44 amplifier board

Class D power module

Active speaker amplifier

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