4-Channel Car Stereo Amplifier High Power Class AB

4-Channel Car Stereo Amplifier High Power Class AB featuring Toshiba A1943/C5200 transistors (100-150W/ch @4Ω), gold-plated terminals, and full aluminum heat dissipation. Engineered for active crossover setups requiring DSP integration, it delivers transparent sound and studio-tier stability—tailored for purists demanding uncolored fidelity.

Product Details

Sennuopu HQ-200.4A – Pure 4-Channel Class AB Power Amp

Unlike most amplifiers that integrate preamp and power stages, this unit focuses solely on clean signal amplification , omitting sound processing. For active crossover setups (2-way/3-way) , we recommend pairing it with a DSP or external preamp (e.g., CD/EQ) for optimal tuning flexibility. Note: It does not support bridging , making it incompatible with bridged subwoofer configurations .

Aerodynamic Alloy Chassis: Superior Heat Dissipation & Premium Build

The Sennuopu HQ-200.4A features an all-aluminum alloy thickened shell with grooved concave-convex surfaces for enhanced heat dissipation compared to flat designs. The refined surface detailing and high-grade material elevate durability and aesthetics—justifying the higher cost for a sleek, high-end finish .

Gold-Plated Ports & Fuse Safety: Flawless Signal, Reliable Protection

Equipped with gold-plated pure copper terminals , the HQ-200.4A guarantees optimal signal and power transfer through flawless contact. The built-in short-circuit fuse instantly reacts to overloads or internal faults, preventing damage to your car or audio system for peace of mind performance .

Pure Post-Amp Signal Amplification – Direct & Unprocessed

The Sennuopu HQ-200.4A is a pure post-amplification power amplifier , meaning it does not include pre-amp processing or tuning functions . Each channel features independent volume control , allowing precise output power adjustment per channel. The signal input section directly corresponds to the source output for each channel, making it ideal for active crossover setups —perfect for those who need per-channel signal management .

Toshiba-Powered Clarity: 150W Pure Output, Pro-Level Reliability

Engineered with Toshiba A1943 + C5200 triode pairs , the Sennuopu HQ-200.4A 4-channel amplifier provides 100W–150W per channel (4Ω rated). Its 6-tube output design guarantees high-fidelity power and professional-grade stability .