Product Description:Pass Labs 2.0 Single-Ended Class A FET Preamp Board – Hi-Fi Preamp for High-End Audio SystemsThe Pass Labs 2.0 Preamp Board is a high-end audio component designed for audiophiles seeking exceptional sound quality. Inspired by renowned international amplifier designs, this preamp board features a double-sided, thickened gold-plated PCB (2mm base, 75μm copper foil, far superior to standard 30μm boards). Its dual-channel design ensures superior channel separation, with each channel powered by an independent FET-regulated power supply and fully isolated ground planes.
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Key Features:- Single-Ended Class A Operation: Delivers smooth, detailed, and dynamic sound with a rich musical character.
- High-Quality Components:
- Audio-Grade FETs: Utilizes IRF610/9610 FETs for pristine audio amplification.
- YONTEX MKP Axial Coupling Capacitors: Ensures minimal signal loss and high fidelity.
- Military-Grade 718 Factory Resistors: Known for their precision and reliability (used in China's Shenzhou spacecraft).
- Japanese Electrolytic Capacitors: Provides stable and clean power filtering.
- Relay-Based Volume Control: Replaces traditional potentiometers to eliminate contact noise, improve reliability, and maintain dynamic range even at low volumes.
- Pure Resistor Network: Offers higher fidelity compared to traditional volume control methods.
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Sound Quality:- Warm and Detailed: The single-ended Class A design delivers a smooth, lifelike sound with excellent resolution.
- Musical and Engaging: Rich midrange, extended highs, and tight bass create a captivating listening experience.
- Superior to Tube Preamps: Offers the warmth and musicality of tube preamps without the drawbacks, making it a highly versatile and cost-effective choice.
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Specifications:- Dimensions: 210mm x 198mm
- Power Supply:
- AC: 0V-50V
- AC: 0V-50V
- AC: 12V-0V-12V
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Why Choose This Preamp Board?- Audiophile-Grade Design: From the gold-plated PCB to the high-quality FETs and capacitors, every component is selected for its performance and durability.
- Relay Volume Control: Eliminates the shortcomings of traditional potentiometers, ensuring a clean and reliable signal path.
- Versatile Application: Perfect for integrating into high-end audio systems as a standalone preamp or as part of a larger setup.
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Notes:- Power Supply: Not included. Ensure your power supply matches the required specifications (AC 0V-50V or 12V-0V-12V).
- Installation: Designed for DIY enthusiasts or experienced audio technicians.
