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LD Systems AMP 405

4-Channel Mini Installation Power Amplifier 4 × 50 W @ 4 Ohm

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SKU: LDAMP405
BRAND: LD Systems
DELIVERY For orders above AED 1,000
WARRANTY 2 years
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EXPERT SUPPORT Pre and post sale support

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Part of the TICA® series, AMP405 combines compact size, passive cooling, and high efficiency – ideal for a wide range of audio installation applications.

The highly efficient four-channel 50 W Class-D amplifier can drive low-impedance loudspeakers in different zones.

Its tiny 142 × 44 × 222 form factor and included mounting plates allow it to be installed discreetly almost anywhere: behind screens, under tables, or even in air-handling spaces and above plenum ceilings. Alternatively, it fits into a 1/3 19″ rack. Use the optional rack tray to slot up to three TICA® series products alongside each other and build a system to your exact requirements, using minimal rack space.

Terminal strip connections on the balanced line input and speaker output make wiring easy.

With remote-control connectivity to put the power amplifier into standby mode at any time, even when it’s hidden. Optional auto-standby saves power when no audio is running.

The perfect solution for professional installers and users looking for a compact, highly efficient, and easy-to-integrate solution.

  • Professional mini amplifier
  • 4 × 50 W Class-D amplifier 4 Ohm
  • Small form factor 1/3 19″ rack, 1U
  • Silent operation with passive cooling
  • Connect to third-party control for remote standby
  • External 100–240 V power supply
  • Run in four-channel mode or bridge for two channels @ 100 W in high-power mode
  • Mounting plates for flexible and inconspicuous installation, even above suspended ceilings
  • Auto-standby to save power
  • Four balanced line inputs with parallel input option
  • Four loudspeaker outputs with terminal strips
  • User-friendly front panel with signal, clip, and protection LEDs
  • Optional rack tray for combining with other TICA® series products

General

Peak output power220 W
RMS output power200 W
Amp classClass D
Frequency response (±0.5 dB, rel. Avg)20 Hz
Crossover frequency125 Hz
Protection featuresOverheating, Short circuit, Direct current, Overvoltage, Undervoltage

Bluetooth®

Receiver (client)0
Transmitter (host)0

Inputs

Number of line inputs4
Line-In connector typeTerminal block 3 pin (Euroblock) / 3.81 mm pitch

Line input performance

Nom. Sensitivity (< 1% THD, 1 kHz, max. Gain)0 dBu
Nom. input clipping, balanced (< 1% THD, 1 kHz, unity)18 dBu
Input impedance (balanced)12 kΩ

Outputs

Number of speaker outputs2
Speaker output connection typeTerminal block 4 pin (Euroblock) / 5.08 mm pitch

Signal processing

AD/DA converter bit depth24 Bit
AD/DA converter sampling rate48 kHz
Min. Signal-to-noise ratio (SNR)100 dB
System latency2 ms
Measuring conditions, unless otherwise specified600 Ω generator source impedance (including open inputs) and 1 kΩ balanced load.

Mains operation

Operation voltage100 V AC - 240 V AC (±10 %) / 50 - 60 Hz
Power supply typeSwitched-mode power supply (SMPS)
Rated power230 W
Mains connectorTerminal block 2 pin (Euroblock) / 5.08 mm pitch

Standby

Auto standby after20 min
Wake-up threshold-33 dBFS

Housing

Cabinet materialSteel
ColourBlack
Front panel materialPlastic

Environmental

Ambient temperature0 °C
Maximum air humidity (non-condensing)85 %

Dimensions & weight

Width142 mm
Height53 mm
Depth221.7 mm
Rack width6.3" (1/3 of 19")
Rack height1 U
Installation depth221.7 mm
Weight1.2 kg

Other properties

Included accessoriesRubber feet, Mounting plate

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