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Fosi Audio ZP3 Preamplifier
Fosi Audio ZP3 Preamplifier
Fosi Audio ZP3 Preamplifier
Fosi Audio ZP3 Preamplifier
Fosi Audio ZP3 Preamplifier
Fosi Audio ZP3 Preamplifier
Fosi Audio ZP3 Preamplifier

Fosi Audio ZP3 Preamplifier

$199.99

Features
  • Triple Source Inputs: 3 In / 3 Out
  • HPF Adjustment
  • 12V Trigger In/Out
  • Perfect combination with ZD3 and ZA3
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FOSI AUDIO ZP3 Balanced Preamplifier

Fred & Sound
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Built on User Voices

The ZP3 Balanced Preamp was developed in response to user demand for a preamplifier with multiple audio inputs.

  • Input: RCA x2 and XLR
  • Output: RCA, XLR, SUB
  • SNR≥ 115dB; SINAD≥113dB; Crosstalk≤ -130dB
  • Input Voltage Range: AC 110-240V

Product details

Description
  • Home Audio Control Hub: Features 3-in-3-out options for connecting up to three audio sources. Includes a remote control for one-touch input switching and volume adjustment—making it easy to manage your home audio system with freedom

  • Versatile Connectivity: Equipped with RCA1/RCA2/XLR inputs and RCA/XLR/Sub-Out outputs, the ZP3 integrates multiple devices with ease. Supports balanced XLR in/out for cleaner sound, plus RCA/XLR signal conversion for maximum compatibility
  • Audiophile-Grade Components: Built with premium parts including ELNA capacitors,  NJR NJU72315 volume IC, and gold-plated RCA jacks. These components reduce noise and distortion, delivering exceptional clarity and high-fidelity performance

  • Adjustable High-Pass Filter: Three-level HPF settings filter low-frequency signals from the RCA/XLR outputs, sending only mids and highs to main speakers while routing bass through the SUB-OUT—enhancing clarity, detail, and overall sound balance

  • Flexible Sound Customization: Includes bass/treble control with bypass function, and L/R balance knobs for personalized adjustment. Volume memory remembers settings for each input source—giving you a smarter, more convenient audio experience tailored to your taste
Specifications

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)
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

What‘s in the box？
  • Fosi Audio ZP3 x 1
  • IR Remote Control x 1
  • AC 110-240V Power Cord x 1
  • 12V Trigger Cable x 1
  • User Manual x 1

Which Product is right for you?

Compare products to find the best one for your needs.

From $199.99

Fosi Audio ZP3 Preamplifier

Learn more
Type
Preamp
Input
RCA x2, XLR
Output
RCA, XLR, Sub-Out
Bass & Treble Control
Yes
THD+N
≤ 0.0007%
SNR
≥ 115 dB
From $99.99

Fosi Audio P4 Mini Preamplifier

Learn more
Type
Preamp
Input
RCA x3
Output
RCA, Pre-Out
Bass & Treble Control
Yes
THD+N
≤ 0.003%
SNR
≥110dB
From $79.99

Fosi Audio P3 Tube Preamplifier

Learn more
Type
Preamp+Headphone Amp
Input
Bluetooth, RCA
Output
RCA, 3.5mm Headphone Jack, AUX
Bass & Treble Control
Yes
THD+N
≤0.02%
SNR
≥103dB
From $199.99

Fosi Audio ZP3 Preamplifier

Learn more
Type
Preamp
Input
RCA x2, XLR
Output
RCA, XLR, Sub-Out
Bass & Treble Control
Yes
THD+N
≤ 0.0007%
SNR
≥ 115 dB
From $99.99

Fosi Audio P4 Mini Preamplifier

Learn more
Type
Preamp
Input
RCA x3
Output
RCA, Pre-Out
Bass & Treble Control
Yes
THD+N
≤ 0.003%
SNR
≥110dB
From $79.99

Fosi Audio P3 Tube Preamplifier

Learn more
Type
Preamp+Headphone Amp
Input
Bluetooth, RCA
Output
RCA, 3.5mm Headphone Jack, AUX
Bass & Treble Control
Yes
THD+N
≤0.02%
SNR
≥103dB

FAQs

Please read our FAQs page to find out more.

One channel is louder than the other?

Make sure the balance knob is centered on the ZP3 and the input signal is balanced between the two channels.

What is the function of the Bypass switch?

It toggles tone control on/off. Slide up to bypass bass/treble; slide down to enable them. It doesn’t affect volume.

Can I switch between RCA and XLR output?

No. RCA and XLR outputs work at the same time and cannot be switched independently.

What is the function of the HPF adjustment?

It filters low frequencies, letting highs pass. The ZP3 offers 3 cutoff settings for different output frequency ranges.

Why is there no bass or the bass sounds weak?

Check if the HPF switch on the bottom is set to 20Hz–20kHz to avoid filtering out low frequencies. Also check if the bass knob is set too low.

Customer Reviews

Based on 20 reviews
75%
(15)
25%
(5)
0%
(0)
0%
(0)
0%
(0)
84.2
B
Bill Skelton
Lots of options!

This is my first discrete pre-amp and there's a lot to take in here. I particularly like being able to use the balanced XLR cable option to connect my pair of ZA3 amps in mono mode and continuing the balanced set up to connect the preamp to my Eversolo DMP-A6 streamer. Still working through all the various options and really enjoying the Fosi gear, not to mention the absolutely outstanding customer service. Super fast responses to my questions. Couldn't be better!

K
Kurt Collins
Nice but...

I bought because of the XLR into Mono Block amps, that works well. I also wanted to have the trigger feature, works but slowly. My main issue is turning it on and off, I don’t use the remote because I already have 6 on the stand. Turning on and off the ZP3 is a hassle, Fosi Make the on=off the volume button, a push in.

H
Hreinn Jónsson

:)

User picture
L
Leonidas K
Fosi Audio ZP3 Preamplifer

I have used this preamp just for a few days, connected to two Fosi Audio V3 monoblock power amps. The main source has been a Rega P3 turntable with the ND3 cartridge, using the Fosi Audio Box X5 phono preamp.

Compared to the previous all in one integrated amplifier the difference in audio quality is significant. The audio has much more clarity, and detail and the most obvious change for me, is the stereo image. The scene is far wider than before, and the instrument placement more distinct.

I cannot really say how much of this is because of the ZP3 and how much is because of the V3 monoblocks, since I could not test the ZP3 with my previous system, but I am really happy with the purchase.

There are two things that could be better though, at least for my use case.
First one, that is not very difficult to solve, is that the power cord is a bit too short, at least for my use case. It is a detachable cord though, so finding a replacement one if you need to, should not be very difficult.
The second thing is that there is no headphone support on the preamp, so the only way to have headphone connectivity is to use an amplifier that has a headphone output.

C
CHANG-HEE LEE
Much satisfied except one thing

The ZP3 was quite good for me overally but a user could not identify the minimum position of volume at the first time of operation. You must clarify how to do 'clearly' in your instruction. Otherwise very much satidfied and the low bright LED indication is also quite a good idea.

123

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