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Product description

A Versatile Control Hub for Home Audio Fosi Audio ZP3 Balanced Preamp
Customize your audio with 3 inputs/outputs, high-pass filter (HPF), and tone controls. Included remote enables one-touch input switching & volume adjustment, while volume memory remembers personalized audio management.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Built on User Voices Merchant Video
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 XLROutput: RCA, XLR, SUBSNR≥ 115dB; SINAD≥113dB; Crosstalk≤ -130dBInput Voltage Range: AC 110-240V
Flexible Sound Customization
Bass/treble bypass, L/R balance. Per-input volume memory for smarter, personalized audio
Effortless Switching
3-in-3-out options make it easy to connect multiple audio sources for flexible listening experience
Three levels of HPF high-pass filter adjustment
Adapts to diverse audio scenarios by switching between different cut-off frequencies
A Versatile Control Hub for Home Audio System
Easily connect 3 audio sources and switch inputs instantly and volume adjustment with the remote
Audiophile-Grade Components Integrated
No compromise on materials, ensures low noise and accurate sound for a premium audio experience
1 Multiple adjustments
2 3 In / 3 Out
3 HPF Switch
4 Home Audio Center
5 Audiophile-Grade
Multi-Function IR Control
Easily adjust the volume, switch sources, and control the power on/off without leaving your seat
Aluminum-Alloy
Metallic texture, with enhanced resistance to electromagnetic interference

1 Fosi Family Connect
2 Remote Control
3 Refined Design
4 12V Trigger In/Out
5 Balanced Circuitry
Visible Exceptional Performance
No longer abstract, the excellence of sound quality is now visible.

1 Scenario 1
2 Scenario 2
3 Sound Quality
4 Front Panel
5 Rear Panel
Friendly Solutions Guide
1. Volume Memory: The ZP3 supports multiple input modes and offers a volume memory feature to enhance user experience. When switching between inputs with varying signal strengths, users often need to manually adjust the volume each time. The ZP3 automatically remembers the volume setting for each input mode, adjusting to the previous volume level when switched to the corresponding input.
2. HPF Adjustment: For the RCA/XLR output frequency range, the ZP3 supports high-pass filter (HPF) adjustment to filter out low-frequency signals, allowing only high-frequency signals to pass through. This ensures that high frequencies are delivered to the main speakers, while low frequencies are handled by the subwoofer.
The HPF switch at the bottom of the ZP3 offers three adjustable cutoff frequencies, allowing users to fine-tune it based on their needs.
3. Bypass: When this feature is enabled, the signal bypasses the bass and treble adjustment.
4. 12V Trigger: It allows seamless power on/off synchronization with Fosi Audio ZD3 DAC and ZA3 amp, eliminating the need for separate device power management.
FAQ:
Q: One channel is louder than the other? A: Make sure the balance knob is centered on the ZP3 and the input signal is balanced between the two channels.
Q: Can I switch between RCA and XLR output? A: No. RCA and XLR outputs work at the same time and cannot be switched independently.
Q: Why is there no bass or the bass sounds weak? A: 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.
Fosi Audio Z Series Hi-Fi System (Fan-Favorite Combo)
Input
RCA+XLR+¼”TRS
Input
USB+HDMI (ARC)+Coaxial+Optical+Bluetooth
Input
RCA 1, RCA 2, XLR
Output
Passive SPK +Sub-out
Output
XLR + RCA
Output
RCA, XLR, SUB
THD
<0.006%
THD+N
<0.00008%
THD
≤ 0.0007%
SNR
≥106dB
SNR
≥126dB
SNR
≥ 112dB
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, relays, 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
NOTE: When connecting ZP3 for the first time, please turn the volume knob 3-4 full turns counterclockwise to minimize the volume. This helps prevent speaker damage or hearing loss due to high default volume. ZP3 remembers the volume level for each input. We recommend reducing the volume before playback when using a new input (such as RCA1, RCA2, or XLR) for the first time.