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Product information "ADA 12K4"

As a 4-channel amplifier with DSP & DANTE™, the ADA 12K4 offers maximum power, precise sound and maximum reliability for professional touring and installation applications.

With 4 × 2700 W @ 4 Ω, a 24-bit/96 kHz DSP with 32-bit floating point and FIR, IIR and raised-cosine filters, it delivers outstanding audio quality and enables flexible sound processing. Thanks to two Dante™ ports with integrated switch and Armonía Pro Audio Suite™ integration, the amplifier can be seamlessly integrated into networks.

Armonía Plus allows LD Systems speaker presets to be managed and updated on the DSP amplifier without the need for complex configurations. Alternatively, individual presets can be created and managed to optimise the system for specific requirements.

Versatile connection options with 4 analogue and 4 AES3 inputs as well as 4 analogue, 4 SpeakON and 4 AES3 outputs ensure maximum flexibility. The automatic input backup strategy guarantees uninterrupted operation.

The 4.3-inch touch display with rotary-push encoder and virtual metre bridge for monitoring the available headroom ensures intuitive operation. Flexible routing and mixing options enable customised signal routing for individual applications. Comprehensive limiters (peak, RMS, current, TruePower™) and Active DampingControl™ offer reliable system protection. In addition, together with HealthPlus monitoring in Armonía Plus, the LiveImpedance™ function offers comprehensive and detailed system monitoring.

The protection system against direct current, overvoltage/undervoltage, short circuits and overheating ensure maximum operational safety, bolstered by signal protection mechanisms such as clipping, VHF and long-term RMS protection. Thanks to an energy-efficient mains adapter with Power Factor Correction (PFC) and intelligent rail management, the amplifier is particularly efficient and reliable, making it ideal for professional use.

Type: 4-channel
Product type: Amplifier
Width: 19.02 in
Depth: 15 in
Height: 3.5 in
Inputs digital AES3: 2 x XLR male ( Link )
Inputs analog: 4 x XLR male, 4 x XLR female
Inputs digital DANTE / AES67: 2 x XLR Ethercon ( 4 Audio Channels )
Input impedance: 20 kOhm ( sym. )
THD+N ( 0.1 W to half power): < 0.1 % ( typical < 0.05 % )
Crosstalk ( 1 kHz ): - 75 db typ
Max. input level: 24 dBu
Output impedance at 100 Hz: 30 mOhm
CMRR: 65 dB typ
SMPTE IMD ( 0.1 W to half power ): < 0.1 % ( typical < 0.05 % )
Memory / presets: Virtually unlimited speaker presets, 50 amplifier snapshots
Damping control: Active DampingControl™, LiveImpedance™ measurement
DA converters: 24 Bit Tandem™ @ 48 kHz, 117 dB-A Dynamic Range - 0.003 % THD+N
Equalizer: Hi / lo-pass, Bandpass, Notch - Filter, Peaking, Parametric IIR:, Allpass, Raised-cosine, Hi / Lo-Shelving, Custom FIR
Sample rate converter: 140 dB Dynamic Range - 0.0001 % THD+N, 24 Bit @ 96 kHz
Crossover: Linkwitz-Riley, Linear phase (FIR), Butterworth, Bessel, 6 dB / oct to 48 dB / oct ( IIR )
Latency: 2,5 ms
Limiter: RMS Power, TruePower™, Peak Limiter, RMS power supply limiter
AD converter: 24 Bit Tandem™ @ 48 kHz, 125 dB-A Dynamic Range - 0.005 % THD+N
Delay: 2 s ( input ) + 100 ms ( output )
Internal precision: 32 bit floating point
Control: Rotary encoder 20 steps / turn with pushbutton, Multitouch capacitive
Brightness: 600 nit
Resolution: 480 x 272, 4.3” diagonal
Max. output current: > 55 Apeak
Bridge Mode 4 Ohm: 4000 W
Per channel @ 4 Ohm ( asymmetrical ): 3000 W
Per channel @ 8 Ohm ( symmetrical ): 1800 W
Max. Output power: 180 Vpeak
Per channel @ 2 Ohm ( symmetrical ): 2000 W
Per channel @ 4 Ohm ( symmetrical ): 2700 W
Per channel @ 2 Ohm ( asymmetrical ): 2000 W
Per channel @ 8 Ohn ( asymmetrical ): 1900 W
Bridge Mode 8 Ohm: 5400 W
Power supply type: Switch mode power supply with power factor correction (PFC), SRM
Nominal voltage (+/- 10% ): 100 V AC - 240 V AC, 50 - 60 Hz
Connection type: IEC C 20 ( 20 A max )
Power consumption 100 V idle: 42 W
Power consumption 100 V Standby: 16 W
Power consumption 240 V 1 / 8 power @ 4 ohms: 1940 W
Thermal loss 240 V 1 / 8 Power @ 4 Ohm: 8,9 Arms
Thermal loss 1 / 8 Power @ 4 Ohm: 1670 BTU / h
Power consumption 1 / 8 power @ 4 ohms: 1570 W
Current draw 240 V 1/8 power @ 4 ohms: 8.9 Arms
Power consumption 240 V idle: 42 W
Current draw 1/8 power @ 4 ohms: 16,5 Arms
Power consumption 240 V Standby: 17 W
Operating voltage: 90 V AC - 264 V AC, 50 - 60 Hz
Supported topologies: Daisy Chain, Star
Connectivity: Ethercon connectors, Integrated switch, 2 x Gigabit Ethernet ports
Remote Interface: ArmoníaPlus or other preferred software

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