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AMP 405 4-Channel Mini Installation Power Amplifier 4 × 50 W @ 4 Ohm

Item No.: LDAMP405
Series: TICA®
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
 

Contents and categories

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Contents and categories

Series

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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
Description

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.


Specifications
General
Peak output power
220 W
RMS output power
200 W
Amp class
Class D
Frequency response (±0.5 dB, rel. Avg)
20 - 20,000 Hz
Crossover frequency
125 Hz
Protection features
Short circuit, Overheating, Overvoltage, Undervoltage, Direct current
Inputs
Number of line inputs
4
Line-In connector type
Terminal 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 outputs
2
Speaker output connection type
Terminal block 4 pin (Euroblock) / 5.08 mm pitch
Signal processing
AD/DA converter bit depth
24 Bit
AD/DA converter sampling rate
48 kHz
Min. Signal-to-noise ratio (SNR)
100 dB
System latency
2 ms
Measuring conditions, unless otherwise specified
600 Ω generator source impedance (including open inputs) and 1 kΩ balanced load.
Mains operation
Operation voltage
100 V AC - 240 V AC (±10 %) / 50 - 60 Hz
Power supply type
Switched-mode power supply (SMPS)
Rated power
230 W
Mains connector
Terminal block 2 pin (Euroblock) / 5.08 mm pitch
Standby
Auto standby after
20 min
Wake-up threshold
-33 dBFS
Housing
Cabinet material
Steel
Colour
Black
Front panel material
Plastic
Environmental
Ambient temperature
0 - 40 °C
Maximum air humidity (non-condensing)
85 %
Dimensions & weight
Width
142 mm
Height
53 mm
Depth
221.7 mm
Rack width
6.3" (1/3 of 19")
Rack height
1 U
Installation depth
221.7 mm
Weight
1.2 kg
Other properties
Included accessories
Mounting plate, Rubber feet
Downloads & links
Stories
2. Feb 2026
Adam Hall Integrated Systems presents new AV solutions at ISE 2026
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For a quote on this item, please contact our sales department or make an appointment with our sales representatives.

Adam Hall North America Inc.
sales.us@adamhall.com
+1 973-335-7888