4 × 120W Power Amplifier with DSP

Name: 4 × 120W Power Amplifier with DSP
Brand: ATEN
SKU: AP412

AP412

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Four-channel Class D amplifier delivering 120 W per channel into 4 or 8-ohm speakers, or 70 / 100 V lines in bridge mode, with +48 V phantom power and WebGUI-configurable DSP.

Features

A 4-channel DSP-equipped amplifier that delivers 120W per channel
Supports balanced / unbalanced mic / line-level inputs and drives 4 / 8-ohm low impedance or 70 / 100V line (in Bridge mode) loudspeaker systems
+48V phantom power supply
Built-in WebGUI-configurable Sigma® DSP allows speaker EQ, 5-band EQ, compressor, delay, limiter, and up to 20 presets for precise tuning and system protection
Class D design assures high power efficiency
PFC (Power Factor Correction) Power Supply – Fly-back power supply design with PFC ensures efficient operation while reducing energy consumption
Integrated protection circuit – Protects the system from damages caused by Amp short circuit, Amp output over/under voltage, high-frequency overload, and overtemperature
Customizable Auto Standby mode – Amplifier automatically switches to “sleep” when the signal level falls lower than -40 / -50 dBu for 10 / 15 / 25 minutes
Solo function – Allows users to isolate and monitor a particular input / output
Expansion slot for add-on expansion card – Install AP901 2-CH Dante Expansion Card to make the sound system compatible with Dante network or AP902 2-CH Mic/Line Pre-AMP Expansion Card to receive two more channels of mic / line input signals
Fanless – Avoids fan noise and prevents dust from building up
Supports VK Control System via RS-232 and Ethernet connection
1U rack mountable enclosure
Firmware upgradable

System Specification

Amplifier Type: Class D
Rated Power: 120W per Channel @4Ω or 8Ω 240W per Channel @8Ω Bridge or 70/100V Hi-Z Bridge
Sensitivity: Balanced: +4dBu Unbalanced: -10dBV (0dBu=0.775Vrms, 0dBV=1Vrms)
Distortion: THD+N: <0.1%, 1kHz, 3dB before clipping
Frequency Response: 50~20kHz, +/-2.5dB @4Ω, 1W, MIC/Line Input to SPK Output

Microphone Inputs

Gain Range: 0~+36dB
Impedance: 3kΩ
Phantom power: +48V

Line Inputs

Gain Range: Bal: -6~+4dB UnBal: -6~+10dB
Impedance: Bal: 5kΩ UnBal: 2.5kΩ
Maximum Input Level: +19dBu / Nominal: +4dBu

Line Outputs

Impedance: 200Ω
Maximum output Level: +10dBu / Nominal: +4dBu

Audio Outputs

Impedance: Lo-Z: 4/8Ω Lo-Z Bridge: 8Ω Hi-Z: 70V (20Ω), 100V (40Ω)

Headphone Outputs

Frequency Response: 50~20kHz, -3dB @10mW
Maximum output Level: >30mW @32Ω
Audio Effects: Built-In DSP (COMP, EQ, Delay, Priority, Limiter)
Protection: Output Shortcut AMP Output over/under voltage High Frequency Overload Thermal Protect

Communication

RS-232: Connector: 3-pin, 3.5mm, Terminal Block Baud rate and protocol: Baud Rate: 19200, Data Bits: 8, Stop Bits:1, Parity: No, Flow Control: No

Compliance

Certification: FCC, CE, UKCA, IEC62368-1:2018

Power

Maximum Input Power Rating: 100-240V~, 50/60Hz, 4A with PFC
Power Consumption: AC110V:81W:380BTU AC220V:76.7W:360BTU
Note: 1/8 Max. Power Output

Environmental

Operating Temperature: 0~50℃
Humidity: 0-80% RH, Non-Condensing
Storage Temperature: -20~60℃

Physical Properties

Weight: 5.21 kg ( 11.48 lb )
Housing: Metal
Dimensions (L x W x H): 43.24 x 33.97 x 4.40 cm (17.02 x 13.37 x 1.73 in.)
Note: For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format.