Stetsom HL 400.4 Amplifier 2-ohm 4 Channel 400 Watt RMS Car Audio Amp

Listed on eBay by stetsom.usa · 99.7% positive

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$139

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Express $255Standard $149~2.5 kg

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About this item

The Stetsom HL 400.4 is a Brazilian-made 4-channel Class D amplifier built for full-range use at 2 ohms, putting out 400W RMS (420W peak) per the rated voltage. It comes with onboard crossover controls for channels 1-2 and adjustable bass boost for channels 3-4, plus a flat mode if you'd rather tune everything externally. A compact cooling setup keeps it stable during extended use, and it's rated for a clean signal-to-noise ratio above 90dB.

Made in Brazil, Class D Mosfet 4-channel amp pushing 400W RMS at 13.8V (420W peak at 14.4V) into 2 ohms, full-range stable
Built-in crossover: HPF/LPF at 90Hz on channels 1-2, variable bass boost 30-74Hz (+14dB) on channels 3-4, with a flat mode to bypass onboard controls
Signal-to-noise ratio above 90dB for a clean, quiet output
Input sensitivity 200mV (RCA) / 1.5V (FIO), input impedance 5K ohms (RCA) / 1K ohms (FIO)
Compact heatsink and cooling design for safe, long listening sessions
Wiring specs: 6mm² power/ground, 0.75mm² remote, 2.5mm² speaker leads, 25A fuse (install within 30cm of the battery)

Specifications

MPN: HL400.4_2
UPC: 7897748705686
Brand: Stetsom
Model: HL 400.4 2 OHM
Channels: 4
RMS Power: 400W
Supply Voltage: 9V ~15V DC
Input Impedance: RCA: 5K Ohms / FIO: 1K Ohms
Signal to Noise: >90dB
Impedance Output: 2 Ohms
Country of Origin: Brazil
Input Sensitivity: RCA: 200mV / FIO: 1.5V
Crossover Low Pass: 30Hz ~ 75Hz (Variable)
Frequency Response: 5Hz ~ 24KHz
Crossover High Pass: 90Hz (fixed)
Consumption with Signal Bass: 34A
Consumption with Signal Musical: 17A