Fosi Audio PH05 5-Channel Headphone Splitter Amplifier - Studio-Grade

In this review the Fosi Audio PH05 proves itself as a focused solution for anyone who needs to drive multiple headphones without compromising clarity. It is best for small studios, podcasters, teachers, and families who want to share audio while keeping individual volume control. The single biggest reason to buy is the PH05's combination of independent amplification and five separate outputs, which provide strong, clean power to a wide range of headphones and IEMs so users do not lose detail or level when more listeners connect.

Key Features

• Five independent outputs: Connect up to five headphones simultaneously so a group can monitor or listen without passive splitting losses.
• Per-channel gain control: Independent level knobs let each listener set a comfortable volume without affecting others.
• High drive range: Each channel can deliver up to 310mW@32, making it compatible with many monitor headphones and IEMs from 16 to 300 ohms.
• Studio-grade performance: Advanced internal circuitry yields low THD and a high SNR for cleaner playback during monitoring or critical listening.
• Solid compact chassis: All-aluminum build, anti-slip feet and a compact footprint make it durable and easy to place in a studio or living room.

Who It's For

The PH05 is ideal for small music studios and podcasters who need to deliver consistent, individualized headphone mixes to multiple performers or guests. Teachers and audio instructors will appreciate the ability to route the same source to several listeners while giving each person independent control.

It is also a practical choice for families or shared living spaces where several people want to listen at once without using crude passive splitters. If you need wireless headphone distribution or more than five independent outputs, look to larger, networked systems instead.

Pros & Cons

Pros

• Robust per-channel amplification that preserves dynamic range even with several connected headphones.
• Independent level knobs and a master volume let users tailor listening levels easily.
• Clean sound with low noise and distortion thanks to a high SNR and low THD design.
• Sturdy all-aluminum construction feels durable for frequent studio use.

Cons

• Limited to five outputs, so it is not suitable where larger distribution is required.
• Requires a 12V power adapter, adding one more cable to manage in compact setups.

Specifications

Product type	One-in-five-out headphone splitter amplifier
Output channels	5 independent stereo headphone outputs
Output power	Up to 310mW per channel @32 ohms
Impedance support	16-300 ohm headphones/IEMs
Noise & distortion	SNR up to 105dB, THD as low as 0.001%
Power	12V power adapter required
Chassis	All-aluminum alloy with anti-slip feet

Our Verdict

The PH05 is a sensible, well-built headphone splitter amp for studios, podcasters, and shared-listening environments that need five independent outputs and reliable audio quality. It balances strong per-channel power, clean circuitry and useful controls at a price that represents good value for anyone who needs dependable multi-listening without complex routing.

Frequently Asked Questions

How many headphones can I connect?
You can connect up to five sets of headphones simultaneously to the PH05, each with its own level control.

Will it drive high-impedance headphones?
Yes, the unit supports headphones and IEMs from about 16 to 300 ohms and delivers substantial power per channel.

Does it need an external power supply?
Yes, the PH05 uses a 12V power adapter which is required for its per-channel amplification and stable performance.