4 in stock (can be backordered)

SKU: IRS2400SMPS Category:


High Performance Stereo Class D Audio Amplifier with integrated Power supply. IRS2400SMPS is based on the very popular Class D audio amplifier controller IRS2092S. Output power 2x400W on 4R.

Output power is 2x400W on 4R at less than 0.1% THD and up to 440W on 4R at 1% THD. Output power on 8R with 0.1% THD or less is 225W and up to 235W at 1% THD. IRS2400SMPS can be powered from 120V (100-127V) or 230V (210-245V) mains voltage It has on-board fully-regulated, high-efficiency resonant power supply which ensure constant supply voltage for IRS2400SMPS Amplifier power stage independent on the mains supply voltage value. Amplifier gain is 21.5, Input sensitivity 1.5V RMS for 200W on 4R output power. Input Impedance is 20K. Frequency response from 24Hz to 18KHz has better than 1.3dB linearity and 3dB from 16Hz to 22KHz. Damping factor >530.

Input section features fully balanced input, with 2x10K impedance, full protection set, over-current, over-voltage, under-voltage, over-temperature, Speaker DC component protection, click/pop free start-up and shut-down. The amplifier efficiency is over 94% at 4R and 95% at 8R and SMPS efficiency is over 93.8% at 50% load. The overall efficiency from mains to speaker is up to 88% for 4R and up t 90% for 8R. Idle power consumption is ~12W with amplifier On and less than 4W with SMPS On and amplifier Muted.

IRS2400SMPS is the smallest powered amplifier available on the market weights just 850 grams and PCB measuring just 120x220mm and 38mm tall, ultra-compact amplifiers can be built. Several IRS2400SMPS amplifier modules can be easily fitted in a single 1RU case or any enclosure with 42mm or more internal height. The heatsinks are all installed on board and no extra heatsink is required as long as free airflow is provided to keep the amplifier temperature within operating limits.

Additional information

Weight 1.04 kg
Dimensions 13 × 10 × 3.6 cm
Mains Voltage

120V, 230V


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.