Fosi Audio P4 Preamplifier

Description

The Fosi Audio P4 is a versatile preamplifier designed to serve as the central hub of your audio system, offering seamless integration with various audio sources. Its compact design and robust feature set make it an ideal choice for both desktop and home audio setups.​

Key Features:

• Multiple Inputs and Outputs: The P4 supports three RCA inputs, allowing connection to multiple audio sources such as DACs, CD players, and turntables (with a phono preamp). It provides one RCA output and a pre-out suitable for active subwoofers, enhancing system flexibility.

• Tone Control with Bypass: Front-panel bass and treble knobs offer ±12dB adjustments, enabling fine-tuning of your audio. A rear-panel tone control bypass switch allows for a direct signal path when tone adjustments are not desired. ​

• Adjustable Gain Settings: A three-position gain switch (3dB, 6dB, 9dB) on the rear panel allows matching the preamplifier’s output to the sensitivity of your power amplifier, ensuring optimal performance.

• Remote Control: The included remote control facilitates convenient operation, including power on/off, input selection, volume adjustment, and muting. ​

• Compact and Durable Design: Measuring approximately 11.5cm (W) x 14cm (D) x 4.2cm (H), the P4’s metal chassis ensures durability while maintaining a sleek aesthetic that complements other Fosi Audio components.

Technical Specifications:

• Inputs: 3 x RCA​

• Outputs: 1 x RCA, 1 x 3.5mm pre-out​

• Gain Levels: 3dB, 6dB, 9dB​

• Tone Control Range: ±12dB for bass and treble​

• Power Supply: DC 12V 1.5A​

The Fosi Audio P4 preamplifier offers a comprehensive set of features in a compact form factor, making it a valuable addition to any audio enthusiast’s setup.