ProTone A44D

4-channel high-performance power amplifier

Description

Specifications

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Description

Features:

Class D with active distortion compensation.
The most accurate sound reproduction account of less deep feedback
No noticeable thermal distortion when playing low frequencies
Full control of the speaker cone due to extremely low output impedance
No need to use Zobel chains, and since the feedback is taken directly from the output, distortion and non-linearities are corrected, which are included in the signal
Switching power supply with active power factor corrector (PFC), so the efficiency can reach 96%
The power supply is based on an LLC resonant half-bridge converter topology. Rectangular structures typical of capacitor circuits are converted into sine waves, greatly improving efficiency

Compatibility:

Line arrays
Full Range Speakers
Subwoofers

Application:

Stadiums and Sports Arenas
Concert Halls & Clubs
Bars and Restaurants
Malls and shops
Amusement parks
Theme parks
City parks and squares
Educational institutions
Open air events

Specifications

DSP

Input mixer

4 channels: 2 analog channels, 2 AES/EBU channels, routing

Input processing

Output processing

Linear phase and classic crossover, 10 band parametric EQ, delay, limiter, gain, polarity switch

Conversion Resolution

24-bit

Sample rate/Internal precision

192/96 kHz / 32 bit

Maximum delay

2 seconds

Inputs and outputs

2 analog inputs, 1 AES/EBU(AES3) input

Dynamic range

114 dB

Supported Resolutions

Up to 24-bit

Supported sample rates

18 - 192 kHz

Remote control and monitoring of network connection

Dual port Interface Ethernet Gigabit

Remote control software

ProTone LM (Loudspeaker manager)
ProTone SM (System manager)

Number of output channels

Maximum output voltage per channel

141V

Maximum output current per channel

60A

Circuit design

Class D with active distirtion compensation

Output power according to
CEA-2006/490A (1% THD, 1 kHz)

2,66 Ohm

4 Ohm

8 Ohm

16 Ohm

One channel RMS (Maximum Sinusoidal Power)

3500 W

2800 W

1400 W

700 W

Sound characteristics

<0,05%

Signal-to-noise ratio

>112 dB

Damping factor (4 ohms, 20Hz - 20kHz)

>500

Frequency response (1W, 8 Ohms)

20Hz - 20kHz (+/- 0,5 dB)

Gain

37 dB

Rear panel interfaces

Input connector

3-pin XLR, balanced

Output connector

SpeakON 8-pin - 1pcs.
SpeakON 4-pin - 2 pcs.

Cooling

Three fans, rear airflow,
with temperature control speed

Mains power

Operating voltage, V 220 V 16A

140 - 250V (50-60Hz)

Maximum power consumption

3600 W

Weight and dimensions

Dimensions (WxHxD)

482х88х443 mm

Weight

15 kg

Download

Data Sheet ProTone A44D_EN.pdf