# ZAPCO HB 154D II 4-Channel Class D Car Amplifier – 150W RMS × 4 at 4 Ohms | Sahiba Car Enhance your car audio system with the **ZAPCO HB 154D II 4-Channel Class D Amplifier**, designed to deliver powerful, controlled amplification for a wide range of car audio applications. With an output of 150W RMS per channel at 4 ohms and 200W RMS per channel at 2 ohms, this full-range amplifier offers flexible configuration options for compatible speakers and audio components. RCA and speaker-level inputs, variable input gain control and an adjustable electronic crossover make it suitable for integrating with both compatible aftermarket head units and factory audio systems. ## Specifications **Key Features** - **4-Channel Class D Amplifier:** Efficient amplification in a compact design for car audio installations. - **High-Power Output:** Delivers 4 × 150W RMS at 4 ohms and 4 × 200W RMS at 2 ohms. - **Bridged Configuration:** Supports 2 × 350W RMS at 4 ohms when bridged and configured correctly. - **Full-Range Audio Performance:** Frequency response of 20Hz–20kHz ±1dB for a broad range of audio applications. - **Dual Input Options:** RCA and speaker-level inputs support integration with compatible aftermarket and factory audio systems. - **Variable Gain Control:** Allows adjustment of input sensitivity to suit the connected audio source. - **Electronic Crossover:** Helps configure the amplifier for compatible speaker and system requirements. - **Compact Construction:** Measuring approximately 180 × 115 × 45.5 mm, it can suit installations where space is limited, subject to ventilation and mounting clearance. **Suitable Applications** - Amplifying compatible front and rear car speakers. - Building a multi-channel car audio upgrade. - Running compatible speakers in a properly configured bridged setup. - Integrating with factory or aftermarket head units using the appropriate input connection. **Installation Notes** Confirm the speaker impedance, power-handling capability and wiring configuration before installation. Use suitable power and ground cables, appropriate fuse protection and adequate ventilation. Bridged operation must follow the manufacturer's wiring instructions and supported impedance requirements. ## Technical Specifications Specification Details Brand ZAPCO Model HB 154D II Amplifier Type 4-Channel Full-Range Class D RMS Power at 4Ω 4 × 150W RMS Power at 2Ω 4 × 200W Bridged RMS Power at 4Ω 2 × 350W Number of Channels 4 Input Connections RCA and speaker-level inputs Input Sensitivity 0.25V–6V (low-level input) Frequency Response 20Hz–20kHz ±1dB Signal-to-Noise Ratio Greater than 90dB THD at Rated Power Less than 0.5% THD + Noise Less than 0.1% Dimensions (L × W × H) 180 × 115 × 45.5 mm **Package Contents** Package contents may vary by supplier. Please confirm the included amplifier, wiring accessories, mounting hardware and documentation with the seller before ordering. **Frequently Asked Questions** **Q. How much power does the ZAPCO HB 154D II produce?** It delivers 150W RMS per channel at 4 ohms and 200W RMS per channel at 2 ohms. Bridged output is rated at 350W RMS per channel pair at 4 ohms. **Q. Is the ZAPCO HB 154D II a 4-channel amplifier?** Yes. It is a full-range, four-channel Class D car amplifier. **Q. Can it work with a factory-fitted car stereo?** Yes, it offers speaker-level inputs for integration with compatible factory audio systems. Check the source output and installation requirements before connecting. **Q. Can I use this amplifier with aftermarket speakers?** Yes, provided the speakers' impedance and power-handling ratings are compatible with the amplifier's output and the system is wired correctly. **Q. Can the amplifier be bridged?** Yes. The manufacturer specifies 2 × 350W RMS at 4 ohms in bridged mode. Follow the official wiring instructions and minimum impedance requirements. **Q. What is the frequency response of the HB 154D II?** The specified frequency response is 20Hz–20kHz ±1dB. **Q. Does it have an adjustable crossover?** Yes. It features a variable electronic crossover to help configure the output for compatible speakers and system requirements. ## Why Buy This Product? The **ZAPCO HB 154D II** is a versatile option for car audio enthusiasts who need substantial multi-channel amplification in a compact chassis. Its Class D design, flexible input options, adjustable gain and electronic crossover support a range of system configurations. Whether upgrading compatible door speakers or building a more advanced multi-channel setup, this amplifier offers multiple wiring and power options when installed according to the manufacturer's specifications. **Shop the ZAPCO HB 154D II at Sahiba Car** to upgrade your car audio system with a powerful four-channel amplifier. ## Details - **Price:** 16299.0 INR - **Vendor:** Zapco - **Type:** CAR AMPLIFIERS - **Tags:** 4-channel amp, bass amplifier, bass control, bass eq, bass remote ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 16299.00 INR | In stock | ## Images - ZAPCO HB 154D II 4-channel car amplifier in a sleek black design, with input/output ports visible on the side. - ZAPCO HB 154D II 4-channel car amplifier, compact black design with multiple input connections, showcasing its rear panel. - 4-channel ZAPCO HB 154D II car amplifier with labeled input connections and adjustable gain settings, featuring a compact black design. - 4-channel Class D car amplifier with a black metal casing, featuring input and output terminals for easy installation. --- > Source: [Sahiba Car](https://www.sahibacar.in/products/zapco-hb-154d-ii-4-channel-class-d-car-amplifier-150w-rms-4-at-4-ohms-sahiba-car) > Updated: 2026-10-11