Portable 2.1 Channel Car Amplifier with Subwoofer 2.0

1: High-quality audio performance

Adopting HIFI-level circuit design, it provides 2.1-channel output (20W×2 main channels + 40W bass channel), and the frequency response range covers the full audio band of 20Hz-20KHz. The harmonic distortion is less than 0.05% (1KHz/4W), ensuring the sound is pure and untainted.

2: Accurate sound effect adjustment

• Independent high and low frequency control: treble ±12dB (10KHz), bass ±12dB (100Hz)

• Multi-impedance adaptation: supports flexible matching of 4-16Ω speakers

• Professional-grade potentiometer: 220mV input sensitivity, 47KΩ input impedance

3: Stable power system

12V DC power supply design, conversion efficiency up to 85%. Built-in overload protection circuit, no heat after long-term operation, suitable for continuous use in home theaters, KTV boxes and other scenes.

4: Wide range of application scenarios

• Home HiFi: drive bookshelf box + subwoofer combination

• Audio-visual room: multi-room audio system center

• Professional monitoring: recording studio post-production

• Conference system: high-fidelity voice amplification

Technical parameters:

• Output power: 200W×2 (RMS)+40W(SUB)

• Signal-to-noise ratio: >95dB (A-weighted)

• Input interface: RCA×3 groups

• Cooling method: aluminum alloy heat sink + silent fan

• Product size: 430×320×85mm

Packing list:

1: ST-838 amplifier host

2: Power cord