Fosi Audio ZP3 Balanced Preamp for Home Audio, 2 RCA and 1 XLR Inputs, RCA/XLR Outputs and Sub-Out, Pre Amp for 2 Channel Stereo and 2.1 Setup, Pre Amplifier with HPF High Pass Filter and Tone Control
Sustainability features
Purchase options and add-ons
| Brand | Fosi Audio |
| Connectivity technology | RCA, XLR |
| Controller type | Button |
| Special feature | Hi Res Audio, Multi Room Audio, Noise Canceling |
| Compatible devices | Smartphone, Tablet, Laptop, Desktop, Television, Home Theater |
| Audio output mode | Stereo |
| Surround sound channel configuration | 2.1 |
| Colour | Black |
| Item weight | 1.09 Kilograms |
| Control method | Remote |
About this item
- 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
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Sustainability features for this productSustainability features
This product has sustainability features recognized by trusted certifications.Carbon emissions from the lifecycle of this product were measured, reduced and offset.As certified by
ClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reducing emissions.Certification Number
ZK5TB8
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Sustainability features
This product has features recognized as more sustainable by certifying organizations.
Carbon emissions from the lifecycle of this product were measured, reduced and offset.
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.
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
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A Versatile Control Hub for Home Audio System
Easily connect 3 audio sources and switch inputs instantly and volume adjustment with the remote
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Effortless Switching
3-in-3-out options make it easy to connect multiple audio sources for flexible listening experience
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Three levels of HPF high-pass filter adjustment
Adapts to diverse audio scenarios by switching between different cut-off frequencies
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Flexible Sound Customization
Bass/treble bypass, L/R balance. Per-input volume memory for smarter, personalized audio
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Audiophile-Grade Components Integrated
No compromise on materials, ensures low noise and accurate sound for a premium audio experience
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Multi-Function IR Control
Easily adjust the volume, switch sources, and control the power on/off without leaving your seat
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Aluminum-Alloy
Metallic texture, with enhanced resistance to electromagnetic interference
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Visible Exceptional Performance
No longer abstract, the excellence of sound quality is now visible.
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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.
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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.
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Can I switch between RCA and XLR output?
No. RCA and XLR outputs work at the same time and cannot be switched independently.
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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.
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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.
Product information
| Connectivity Technology | RCA, XLR |
|---|---|
| Controller Type | Button |
| Other Special Features of the Product | Hi Res Audio, Multi Room Audio, Noise Canceling |
| Compatible Devices | Smartphone, Tablet, Laptop, Desktop, Television, Home Theater |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 2.1 |
| Control Method | Remote |
| Wireless Technology | No wireless communication technology |
| Item Weight | 1.09 Kilograms |
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| Colour | Black |
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Feedback
| Brand | Fosi Audio |
|---|---|
| Model Number | ZP3 |
| Manufacturer | Fosi Audio |
| Built-In Media | 12V Trigger Cord, Fosi Audio ZP3 Preamp, Power Cord, Remote, User Manual |
| Country of Origin | China |
| Unit Count | 1 Count |
| 鶹 Rank |
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| ASIN | B0F9KP5SLH |
| Customer Reviews |
4.3 out of 5 stars |
Product details
- Language : Italian
- Product Dimensions : 12.7 x 10.16 x 5.08 cm; 1.09 kg
- Date First Available : May 28 2025
- Manufacturer : Fosi Audio
- ASIN : B0F9KP5SLH
- Item model number : ZP3
- Country of origin : China
- 鶹 Rank: #11,897 in Electronics (See Top 100 in Electronics)
- Customer Reviews:
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Customer reviews
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For Music Lovers!!
Top reviews from Canada
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- Reviewed in Canada on March 13, 2026Verified PurchaseNo one produces a preamp that sounds this good at this price...the weird volume control design disappears as soon as you hear this preamp sing...
No one that hears this preamp will be obsessing over the volume control at this price...giant killer.
- Reviewed in Canada on January 25, 2026Verified PurchaseAfter having such a positive experience with the WiiM Ultra I thought I’d give the Fosi brand a try. I read many reviews and my only concern was the potential volume issue. For me it’s not been a problem but without question you should use caution. I expect a volume display will show up on the next model. One of the appeals for me was the high pass filter, it gives my system much more flexibility and piece of mind at higher volumes. How does it sound? Well it doesn’t really have a sound (this is a good thing) my system remains transparent with no harshness etc. It’s completely at home in my 10k plus system. Highly recommended!
- Reviewed in Canada on July 29, 2025Verified PurchaseI bought this preamp because it has a switchable high-pass filter built in, and has XLR input/output jacks. For most people with typical systems this preamp is all you could ask for. The uncalibrated volume knob IS an issue, but not a deal breaker for me. I like the high-pass filter with 2 options for corner frequency, but I wish it could be limited to one set of outputs. I built DIY modular woofers in my main system, that double as speaker stands for whatever satellite speakers sit on top. I wish I could have the HPF active in one set of outputs, and full-range (or with a low-pass filter) for the other set (either RCA or XLR). That would allow me to control both modular woofers and satellites with the preamp, plus have a subwoofer out to the 15" active sub that handles the lowest octave. I realize this is not a typical system, and so I have to run a separate line from my DAC to the amplifier powering the modular woofers, and control the woofer volume independently from that amp. Thanks to the other reviews, I knew to power up and turn the volume way down before connecting the preamp to the system. I was debating returning this unit because of the issues just discussed, but decided to keep it anyway, allowing me to choose between two amps to power the satellites, using my handy DOUK Audio amp/speaker switcher (VU02). This allows real-time evaluating/comparing two amps or two sets of speakers with the touch of a button. Adding all these desired extra features would have cost more, and required some kind of display screen, or at the least more switches. Speaking of switches, why put the tone-control bypass and HPF setting on the bottom where you can't see them? Yes, it cleans up the front panel, but makes it a pain to switch settings with different satellite speakers. Sound quality is great - really not an issue at all. For most people, 5 stars for this unit would not be unreasonable, for me it merits 4 at most. Maybe the next iteration will address the minor complaints myself and other reviewers have expressed. You can spend a lot more money for a preamp without getting a lot more functionality and features, but just a bit more versatility or control options would make this puppy an out-of-the-park home run.
4.0 out of 5 starsI bought this preamp because it has a switchable high-pass filter built in, and has XLR input/output jacks. For most people with typical systems this preamp is all you could ask for. The uncalibrated volume knob IS an issue, but not a deal breaker for me. I like the high-pass filter with 2 options for corner frequency, but I wish it could be limited to one set of outputs. I built DIY modular woofers in my main system, that double as speaker stands for whatever satellite speakers sit on top. I wish I could have the HPF active in one set of outputs, and full-range (or with a low-pass filter) for the other set (either RCA or XLR). That would allow me to control both modular woofers and satellites with the preamp, plus have a subwoofer out to the 15" active sub that handles the lowest octave. I realize this is not a typical system, and so I have to run a separate line from my DAC to the amplifier powering the modular woofers, and control the woofer volume independently from that amp. Thanks to the other reviews, I knew to power up and turn the volume way down before connecting the preamp to the system. I was debating returning this unit because of the issues just discussed, but decided to keep it anyway, allowing me to choose between two amps to power the satellites, using my handy DOUK Audio amp/speaker switcher (VU02). This allows real-time evaluating/comparing two amps or two sets of speakers with the touch of a button. Adding all these desired extra features would have cost more, and required some kind of display screen, or at the least more switches. Speaking of switches, why put the tone-control bypass and HPF setting on the bottom where you can't see them? Yes, it cleans up the front panel, but makes it a pain to switch settings with different satellite speakers. Sound quality is great - really not an issue at all. For most people, 5 stars for this unit would not be unreasonable, for me it merits 4 at most. Maybe the next iteration will address the minor complaints myself and other reviewers have expressed. You can spend a lot more money for a preamp without getting a lot more functionality and features, but just a bit more versatility or control options would make this puppy an out-of-the-park home run.For the price and for most potential users, it's almost everything you need.
Reviewed in Canada on July 29, 2025
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- Reviewed in Canada on October 16, 2025Verified PurchaseLove this little preamp. Very neutral. I definitely recommend.
- Reviewed in Canada on August 29, 2025Verified PurchaseFOSI AUDIO | Hear the unheardThe media could not be loaded.
This system is an absolute joy to listen to. I mainly use it as a dedicated music streamer by sending Tidal, Spotify, or Apple Music from my phone or laptop into the TV, then out through HDMI ARC into the DAC. I don’t use the Bluetooth feature, but I also have a thrifted Apple TV connected. That way, whenever friends are over and on my Wi-Fi, they can stream music into the ZD3 through the optical input.
The tone controls sound fantastic. I’ve also tested the ZD3 alongside studio-grade rack gear like equalizers, and compared it directly with interfaces such as the Scarlett 2i2. At max volume, the ZD3 delivers a perfectly clean signal with no hiss, something I can’t say for most studio DACs and systems.
One of my friends even told me that when I played music on the KRK Rokit 5 G4s, he could always tell the left and right channels were playing separately. But with this system, it feels like the whole wall is playing music, it all comes together as one seamless, immersive sound.
Having spent plenty of time with professional audio equipment and active speakers, I can honestly say this FOSI system brings music to life. It never fails to impress my friends, even those with high-end car audio systems, who describe it as sweeter, fuller, and more joyful.
Thank you, FOSI, for making such an incredible piece of gear.
FOSI AUDIO | Hear the unheard
This system is an absolute joy to listen to. I mainly use it as a dedicated music streamer by sending Tidal, Spotify, or Apple Music from my phone or laptop into the TV, then out through HDMI ARC into the DAC. I don’t use the Bluetooth feature, but I also have a thrifted Apple TV connected. That way, whenever friends are over and on my Wi-Fi, they can stream music into the ZD3 through the optical input.
The tone controls sound fantastic. I’ve also tested the ZD3 alongside studio-grade rack gear like equalizers, and compared it directly with interfaces such as the Scarlett 2i2. At max volume, the ZD3 delivers a perfectly clean signal with no hiss, something I can’t say for most studio DACs and systems.
One of my friends even told me that when I played music on the KRK Rokit 5 G4s, he could always tell the left and right channels were playing separately. But with this system, it feels like the whole wall is playing music, it all comes together as one seamless, immersive sound.
Having spent plenty of time with professional audio equipment and active speakers, I can honestly say this FOSI system brings music to life. It never fails to impress my friends, even those with high-end car audio systems, who describe it as sweeter, fuller, and more joyful.
Thank you, FOSI, for making such an incredible piece of gear.
Images in this review
- Reviewed in Canada on July 22, 2025Verified PurchaseWhy on earth does the colour /paint not match the ZA3?! It's insane they'd change the finish on this when it's meant to math the rest of the line. Obviously the digital volume is ridiculous as well, but I can live with that, but right out of the box, it looks different. I may return it just for that.
- Reviewed in Canada on August 29, 2025Verified PurchaseIt's a great preamp and it works well with my equipment.
- Reviewed in Canada on December 22, 2025Verified PurchaseProduct arrived obviously pre-owned/purchased. No protection on side panels. Nothing wrapped properly. 12 volt trigger cable missing. Non-default settings. No batteries for remote. Box damaged. REALLY disappointed in this purchasing experience.
The preamp is amazing. The volume issue is minor once you set it up but having no feedback is lame; makes it impossible to A/B recording or hardware or to recreate a past listening experience.
Top reviews from other countries
André MReviewed in Spain on July 24, 20255.0 out of 5 stars Great starter pre amp!
Verified PurchaseWorks great! Solid construction build, great sound output. I have my pc & turntable connected to it, there's some electric interference coming from the desktop which is fairly common, however nothing can be said when listening from the turntable. Sound is crystal clear, balance control is awesome to have.
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Mad CatReviewed in Germany on November 30, 20255.0 out of 5 stars Guter Vorverstärker mit Klasse Preis/Leistung
Verified PurchaseEin wirklich guter Vorverstärker. Klanglich in Kombination mit einem ZA3 oder besser zwei davon im Mono Betrieb sind echt gut zu hören. Leider war der derste ZP3 defekt. Im Bypass Betrieb liefen beide Audio-Kanäle, bei Betrieb über Höhen und Tiefen Regler nur ein Kanal. Rückgabe und neu bestellt war kein Problem.
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Cliente 鶹Reviewed in Italy on November 27, 20255.0 out of 5 stars Il preamplificatore che aspettavo da tempo!
Verified PurchaseDavvero un ottimo preamplificatore, lo sto usando con le uscite bilanciate,suono arioso ma non freddo, tanti dettagli, silenzioso. Lo terrò da parte per molto tempo visto le sue qualità dubito che si possa fare meglio. Non è attivato a reggere il confronto con il pre che ho nell’impianto principale per un pelo, ma parliamo di qualcosa che ha uno zero in più sul prezzo rispetto al Fosi zp3 ed è a valvole, quindi ci sta pure che è anche una questione di gusti. Per me la “morte sua” è un bel finale a valvole, gli dà anima e personalità!
So che troverete molte recensioni che parlano del potenziometro elettronico e della paura di accendere l’impianto e trovarsi il volume a cannone che spacca le casse…mi sembrano tutte cretinate. Mai una volta in vita mia mi è capitato di spegnere l’impianto con il volume al massimo…boh problemi per persone che devono trovare problemi
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Laurent GReviewed in France on January 2, 20265.0 out of 5 stars Préamplificateur de qualité, bravo Fosi
Verified PurchaseAudiophile dans l'âme, j'étais à la recherche d'un petit préampli pour y connecter un amplificateur de puissance. Comme il ne fera pas parti de mon système principal, je ne voulais pas dépenser une fortune non plus. Et bien quelle surprise, ce produit coche toutes les cases! Connectique RCA et XLR aussi bien en entrée qu'en sortie, possibilité de connecter 3 sources différentes, ajouter un caisson de basse et réglé la sensibilité de celui ci par commutation.
Le produit est beau et qualitatif, l'emballage est sérieux, compartiments dissociés en mousse accueillant d'un coté le préampli, et de l'autre la télécommande et le câble d'alimentation. Une notice en anglais et chinois, dommage car pas de piles fournies pour la zapette. Après une trentaine d'heures d'écoute, je peux vous dire qu'il retranscrit très bien la musique. C'est clair et limpide tout en restant neutre, je suis bluffé!
Le seul bémol, le bouton de volume n'est pas motorisé. Ce qui lors de l'écoute est dérangeant car impossible d'évaluer où se situe le positionnement du volume. J'espère que Fosi réglera ce détail avec les nombreux retours clients sur ce désagrément... Pour un prix de 160€ sur 鶹 (le moins cher du net sur ce produit), vous aurez un préampli de qualité dont le rendu est vraiment surprenant!!!
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Miranda D. ArturoReviewed in Mexico on January 3, 20265.0 out of 5 stars Gran preamplificador.
Verified PurchaseGran opción si tienes sistema 2.1 con un subwoofer así haces corte a 80hz con el zp3 y dejas que el sub se encargue solo de los graves. Dejando que los amplificadores trabajen más libres.
Gran opción si tienes sistema 2.1 con un subwoofer así haces corte a 80hz con el zp3 y dejas que el sub se encargue solo de los graves. Dejando que los amplificadores trabajen más libres.5.0 out of 5 stars
Miranda D. ArturoGran preamplificador.
Reviewed in Mexico on January 3, 2026
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