84%
Fosi Audio Fosi Audio PH05 5 Channel Headphone Amplifier
- Pro Splitter Amp: The PH05 is a versatile one-in-five-out stereo headphone splitter/amplifier, allowing you to connect up to five sets of headphones simultaneously, adapting to multiple audio-sharing and distribution scenarios. Whether for professional music studio production, podcasting, teaching, or everyday use like seniors watching TV, it will serve as your excellent companion.
- Independent Amplification: Each of the five channels can independently output power up to 310mW@32Ω, perfectly compatible with a variety of monitor headphones and IEMs with impedance ranging from 16 to 300 ohms, providing flexible audio sharing. PH05 is an upgrade model of PH04 which offers one more channel and higher power output.
- User-Friendly Control: Equipped with independent level control knobs for each channel, ensuring that adjustments made to one channel do not affect others, allowing personalized volume settings for each headphone. Additionally, features a large-diameter master volume control and a one-touch mute button, greatly enhancing ease of use.
- Outstanding Performance: In addition to delivering robust power output, the PH05 boasts an advanced circuitry design internally, ensuring pristine sound. With an SNR of up to 105dB, THD as low as 0.001%, and noise floor as low as 25μV, it guarantees exceptional audio fidelity.
- Substantial & Compact: The perfect combination of all-aluminum alloy solid build, exquisite appearance, anti-slip foot pads, and greater stability. Experience the superior quality in every touch, complemented by the peace of mind that comes with Fosi Audio's 24-month warranty.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Professional Reviews 84/100
Nicely Roasted
Sound Quality
81/100
Build Quality
85/100
Features Usability
85/100
Value for Money
92/100
The Fosi Audio PH05 brings clean, punchy monitoring to five listeners at once, with independent channel levels, master volume and mute for effortless sessions. ZPProductions found its presentation transparent and dynamics impressive, while Passion for Sound highlights its practical 300-ohm-friendly, shared-listening appeal. A compelling five-channel headphone distribution hub for creators and group listening.
What Reviewers Are Saying
Pros
Feeds five headphones or IEMs simultaneously, with independent level controls plus master volume and mute.
Delivers a clean, transparent and punchy presentation with strong dynamics when paired with suitable headphones.
Excellent value as an affordable multi-listener monitoring and shared-listening solution.
&
Cons
Sensitive IEMs can reveal audible hiss, so the background is not fully silent.
Limited output reserves can cause distortion with difficult, power-hungry headphones at higher levels.
SOUND QUALITY PERFORMANCE 81/100
The PH05 is described as clean, clear and notably punchy when used within its limits, with an essentially neutral presentation rather than an added sonic flavor. It is primarily a practical multi-listener distribution amplifier: sensitive IEMs reveal a soft hiss, and demanding loads can expose limited output power and early distortion.
Transparency Resolution
85/100
ZPProductions repeatedly calls the presentation transparent, clear and clean, saying it does not noticeably alter the incoming sound. Passion for Sound is less enthusiastic for dedicated audiophile listening, describing it as competent rather than a high-fidelity headphone amplifier.
Tonal Balance Musicality
82/100
The available listening comments characterize the PH05 as having little inherent signature, preserving the source rather than adding warmth or coloration. Reviewers say little about timbre, tonal refinement or long-session musical engagement beyond that neutral, practical presentation.
Dynamics
81/100
One reviewer found the amplifier very punchy and praised its dynamics, while also reporting that it can distort quickly when more power is demanded. It remained clean at high volume with an Atrium Open, suggesting useful voltage capability, but its available power is not unlimited.
Noise Floor
74/100
Both reviews note a faint hiss, especially with IEMs. Passion for Sound considers it unobtrusive enough for monitoring work, but explicitly says the background is not truly black, while ZPProductions likewise hears a very soft hiss.
Headphone Compatibility
83/100
The PH05 can feed five headphones or IEMs at once with independent level controls, and Passion for Sound reports operation with headphones up to 300 ohms. Its low-power limitations under demanding loads and audible IEM hiss make it better suited to monitoring, sharing and reasonably efficient headphones than to every possible headphone.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
85/100
ZPProductions praises the all-metal construction and reports clean day-to-day behavior, with no pops or clicks while headphones are connected or disconnected. The reviews provide little information about internal construction or long-term durability.
Features Usability
85/100
Its key strength is distributing one incoming feed to five listeners, each with an independent volume control, alongside a master level control and master mute. Reviewers also note that changing one channel's level does not affect the others, making it especially convenient for studio monitoring, podcasting or group listening.
Value for Money
92/100
At $50, Passion for Sound calls the PH05 great for its intended role as a convenient five-person monitoring and headphone-sharing solution. There is no direct comparison with competing multi-output amplifiers, but the reviewer considers its practical capability compelling at the asking price.
Reviews
Online Reviews & Mentions
Forum Mentions
No forum mentions found yet
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for Fosi Audio Fosi Audio PH05 5 Channel Headphone Amplifier
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- Altitudo Audio — online and in-store — Winnipeg, Manitoba, Canada (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- Audeos — online and in-store — Żywiec, Województwo śląskie (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Domain — online and in-store — Stadtbezirke I, Nordrhein-Westfalen, Germany (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
- AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
- AV Cables — online and in-store — Hornsyld, Denmark (website)
- B&H Photo — online and in-store — New York, New York, United States (website)
and 13 more verified dealers