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Fosi Audio ZP3 Preamp

A Versatile Control Hub for Home Audio System

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Fosi Audio P4 Preamplifier

Fosi Audio ZP3 Preamp

A Versatile Control Hub for Home Audio Systems

Triple Inputs | Balanced Transmission | HPF Control

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Built on User Voices, Tuned to Know You

In August 2023, we received a wave of user feedback requesting a preamplifier with multiple audio inputs —a feature missing from much of the market. We launched a community-wide discussion on ASR and the Fosi Audio forum, gathering invaluable insights from users around the world. 
V3 stereo amp

We will continue to listen carefully, record your feedback promptly, and make efforts to turn your ideas and suggestions into reality. 

Balanced interconnect systems are great. All balance internal circuits are an expensive engineering challenge. --Speedskater from ASR 

I bet everyone needs a preamp for their fancy DAC, why on earth would it have another DAC? Keep it as simple as possible. Inputs, outputs, volume control (+remote), input selector, done. --Negatywny from ASR 

Sub output with high pass filter for the speaker outputs, possibly with adjustable frequency. we all want to manage the subwoofer by splitting the frequencies, but nobody seems to care. --Talisman from ASR 

Yes, add additional circuitry to make it capable of driving both sets of outputs simultaneously. --JayGilb from ASR 

Crafted with Care 
An Absolute Homerun
Triple RCA Inputs

Triple Source Inputs
DAC Converter
Remote Control

HPF Adjustment
Best Preamplifier

EQ  Adjustment
Tone Control

12V Trigger In/Out
Replaceable Op-Amp

Remote Control
Home Audio ZP3

A Versatile Control Hub for Home Audio System

Easily connect up to three audio sources and switch inputs instantly with the remote for seamless audio control.
Best Preamp

A Versatile Control Hub for Home Audio System

Easily connect up to three audio sources and switch inputs instantly with the remote for seamless audio control.
High-Fidelity

Enjoy True High-Fidelity With Fosi Family Products
Best Preamp

3 In / 3 Out, Effortless Switching

Equipped with three input ports: RCA 1, RCA 2, XLR and three output ports: RCA, XLR, Sub-Out, which makes it easy to connect multiple audio sources for a truly flexible listening experience.
Best Preamplifer

Aluminum-Alloy Compact Design

Metallic texture, series design and refined, with enhanced resistance to electromagnetic interference.

HPF Adjustment

Offers three levels of high-pass filtering: 20Hz-20kHz, 80Hz-20kHz,120Hz-20kHz. Ensures that only the high-frequency part is sent to the main speakers, enhancing vocal clarity and detail resolution.

Versatile Sound Tuning Options
Best Preamp

Versatile Sound Tuning Options

  • Bypass

  • Bass and Treble Control

  • Balance Adjustment

  • Volume Memory

Bypass

Enjoy a very clean, noise-free listening experience by bypassing the tone control circuit.

Bass and Treble Control

Achieve personalized tuning with a midpoint reference for better sound customization.

Balance Adjustment

Adjust the volume balance between the left and right channels. 

Volume Memory

Automatically remembers the volume level for each input source. When switching sources, it adjusts to your previous level—making your HiFi system smarter and more user-friendly.
Best Preamp

12V Trigger In/Out

Enables synchronized on/off with audio setups, such as the ZD3/ZA3, automating system control for seamless.
Multi-Function IR Control

Multi-Function IR Control

Easily adjust the volume, switch sources, and control the power on/off without leaving your seat, with the remote control that can be used for multiple Fosi  Audio products.
Audiophile-Grade Components

Audiophile-Grade Components

No compromise on materials, ensures low noise and accurate sound for a premium audio experience.
Best Preamp

Balanced Circuitry

XLR balanced input and output deliver incredibly good spatial reproduction. Supports RCA and XLR signal conversion for broader device compatibility.
Best Preamp

Covers Multiple Scenarios

A handy control hub for all your audio sources, speakers, and subwoofer.

Visible Exceptional Sound Quality

No longer abstract, the excellence of sound quality is now visible to the eye.

Crosstalk | ≤ -130dB

SINAD ｜≥113dB 

SNR | ≥ 115dB

THD+N | ≤ 0.0007%

Noise Floor | ≤ 4μV

Specifications

Dimensions

239mm × 164mm × 54mm

Channel

2.0

Input

RCA x2, XLR

Output

RCA, XLR, SUB

Bass and Treble Control Range 

Treble: ±6dB，Bass: ±12dB 

Frequency Response

XLR/RCA: 20Hz-20kHz (±0.2dB), 80Hz-20kHz (±0.2dB), 120Hz-20kHz (±0.2dB)

SUB: 20Hz-200Hz (±0.2dB)

Frequency Response

XLR/RCA

20Hz-20kHz (±0.2dB) 

80Hz-20kHz (±0.2dB)

120Hz-20kHz (±0.2dB)

SUB 

20Hz-200Hz (±0.2dB)

Input Voltage Range 

 AC 110-240V

Balanced Output (XLR) 

SNR

≥ 112 dB

Dynamic Range

 ≥ 112 dB

THD+N

≤ 0.0007%

Noise Floor

≤ 6μV

Single-Ended Output (RCA)

SNR

≥ 115 dB

Dynamic Range

≥ 115 dB 

THD+N

≤ 0.0008%

Noise Floor

≤ 4μV
Best Preamp

What's in the box？

Free Shipping

Delivery Available for Every Order

Money-Back Guarantee

30 Days Free Return

Customer Support

Provide you with all-round services

24 Months Warranty

Quality Assurance Guarantee
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