High-End Class D Amplifier BRZHIFI PA400 Monoblock with Purifi Technology

1. Product description

PA400 MONO based on the development of the PURIFI 1ET400A line amplifier module, this circuit is a high-performance power amplifier module introduced by Dutch company PURIFI AUDIO.

450W of Pure Monaural Power with Ultra-Low Distortion and 129dB Signal-to-Noise Ratio.

2. Overview of Excellence

Extraordinary Performance, At a Glance

·450W @ 2Ω - Ultra-High Power for Demanding Speakers

·<0.0009% THD - Ultra-Low Distortion for Pure Sound

·129dB SNR - Ultra-High Signal-to-Noise Ratio for a Black Background

·Purifi & Hypex - Core Technology Partnership

·Fully Symmetrical Architecture - Balanced Design for Superior Performance

3. The Heart of Innovation: Purifi 1ET400A Module

·Beyond Traditional Class D Amplification

Our PA400 MONO features the high-performance 1ET400A amplifier module developed by Dutch brand Purifi Audio. This technology fundamentally resolves the core issues of traditional amplifiers: excessive distortion, weak drive capability, and harsh sound quality.

·Self-Oscillation Control for "Analog Warmth"

4. Reproduce Every Detail with Fidelity

·Stability, Accuracy, and Cleanliness

Whether driving hard-to-push speakers or reproducing minute details, the PA400 delivers stable, accurate, and clean performance, making it widely used in high-end Hi-Fi amplifiers and professional audio equipment.

·Zero Crosstalk for Precise Soundstage

Mono design ensures higher power distribution accuracy and channel isolation, achieving zero crosstalk. This enables more precise soundstage localization, deeper stereo effects, and purer sound.

5. Premium Components, Extraordinary Sound

We meticulously select premium components to establish a solid foundation for exceptional sound quality.

Power Core: A 1200W high-efficiency switching power supply based on the Hypex SMP1200A delivers abundant, pure energy.

Input Buffer: Japanese JRC MUSES02 operational amplifiers, renowned for their refined, warm, and dynamically rich sound.

Critical Capacitors:

Japanese Nichicon audio-grade filter capacitors ensure sonic clarity and long-term stability.

German Weimar coupling capacitors deliver exceptional sound quality and signal integrity.

Japan Rubycon audiophile capacitors guarantee superior audio clarity.

Isolation Design:

Digital control circuits receive dedicated power from renowned UK Talema sealed toroidal transformers, completely eliminating digital noise interference.

Custom Inductance:

Delivers enhanced signal purity and noise reduction.

6. Versatile for Every Audio Scenario

The PA400 MONO meets the demands of diverse audio scenarios, including home theaters, high-fidelity stereo listening, professional listening rooms, and electronic crossover systems.

·Flexible Connectivity & Control

Input Support: Simultaneously supports XLR balanced and RCA unbalanced inputs.

Gain Selection: Offers two gain levels—20dB and 29dB—enhancing source adaptability and sonic detail expression.

Smart Linkage: Equipped with a 12V Trigger interface for seamless operation with other devices, enabling simple power switching.

7. Intuitive Interface, Easy Operation

Independent functions are clearly labeled and easy to use.

8. Technical Specifications

9. Production process

We specialize in audio equipment OEM/ODM, backed by a professional R&D team and advanced production lines. From concept design and hardware development to software debugging and mass production, we deliver comprehensive turnkey solutions to ensure efficient product implementation and exceptional quality, making us your reliable manufacturing partner.

10. Packing&Shipping

11. Certificate

Products through CCC/FCC-CE/ROHS UL certification, the company has a young entrepreneurial team and has a complete and scientific quality management system.

12. Q&A

Q1: Unstable operation of electronic devices?

A1: Adhering to the concept of high quality, we select high-quality original imported famous brand electronic components. Secondly, the design and testing are repeatedly tested and calibrated by multiple instruments to ensure the index and consistency of the machine.

Q2: After-sales service is not guaranteed?

A2: We provide 365 days after-sales service and support free replacement of accessories. Contact us at any time if you have any needs after the order is completed.

Q3: Are the products certified?

A3: Energy-saving and environmentally friendly, some products have been certified by ROSE environmental standards in Europe and the United States, and CE global safety standards.

Q4: Is the transaction information not confidential?

A4: Professional services, more than 15 years of experience in the processing of engineers to control every detail, focus on the management of drawings, strictly to prevent leakage of confidentiality.

Q5: Slow delivery?

A5: We deliver the products to the customer after 100％ full inspection before shipment to the customer. According to the actual situation, the delivery time reached 96％ within one month.

Q6: The progress of the order is not publicized?

A6: You can always ask the customer service to understand the latest processing progress of the order.

Ready for a Pure Power Experience?

Elevate your audio system with the benchmark-setting PA400 MONO amplifier.