| Age range (description) | Adult |
|---|---|
| Control type | Button Control |
| Cable feature | Detachable |
| Item weight | 172 g |
| Package type | Standard Packaging |
| Control method | Touch |
| Number of Items | 1 |
| Manufacturer | Fosi Audio |
| Place of Business | ShenZhen city, Guangdong province 518000,CN |
| Model | PH04 |
| Part Number | PH04 |
| Tuner Technology | DAB |
| Special features | Portable |
| Speaker surround sound channel configuration | 4 |
| Power source type | Power Adapter |
| Batteries included | No |
| Batteries Required | No |
| Cable Feature | Detachable |
| Speaker Output Channel Quantity | 4 |
| Includes rechargable battery | No |
| Includes Remote | No |
| Manufacturer | Fosi Audio |
| Item model number | PH04 |
| Product Dimensions | 10.16 x 5.08 x 2.54 cm; 172.37 g |
| ASIN | B08XZL91VT |
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Fosi Audio PH04 4 Channel Headphone Amplifier Stereo Audio Amp with 12V 1.5A Power Adapter Ultra-Compact Portable Headphone Splitter for Studio and Stage (PH04)
Purchase options and add-ons
| Brand | Fosi Audio |
| Form factor | In Ear |
| Headphones jack | 3.5 mm Jack, 6.35 mm Jack |
| Model name | Fosi Audio PH04 |
| Connectivity technology | Wired |
About this item
- ¡¾4 Channel Stereo Headphone Amplifier¡¿Fosi Audio PH04 is a 4 high-power stereo amplifiers with output level control for each channel, compatible with 3.5MM headphones and 6.35MM headphones(You need a 3.5MM to 6.35MM adapter). If you're tracking more than one musician at once, or if everyone in a group wants to listen to a playback, you need a monitor distribution system. The compact, flexible PH04 can power up to four pairs of headphones and up to four independent volumes.
- ¡¾Upgraded Version¡¿PH04 is designed with a power switch and 3.5MM headphone output compare with other 4 CH headphone amp. When a recording session calls for everyone's heads and ears to be in the game, the PH04 is the perfect solution and a real money-saver!
- ¡¾Great Sound, Great Value¡¿The PH04 contains 4 independent stereo high-power amplifier sections that maintain the highest sonic quality even at maximum volume levels. These ultra-low-noise operational amplifiers are included for outstanding audio performance: the same op amps found in "full-size" audio equipment.
- ¡¾Ultra-Compact Design¡¿A Simple Solution: Ultra-compact headphone amplifier system for studio and stage applications. Grab this super-compact amp during your sessions to power practically any headphones: four of them at the same time. To be exact, let up to 4 different people in your studio listen to the main mix while recording, and each listener can determine their own preferred volume level using the dedicated output level controls.
- ¡¾What You Get¡¿ Ultra low noise headphone amplifier*1 £¬12V DC power adapter *1, Use manul*1, 24-Month Warranty for Fosi Audio Headphone amplifier. Please contact with us at any times if you have any problems.
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Product information
Technical Details
Additional Information
| Date First Available | May 24 2021 |
|---|---|
| Customer Reviews |
4.4 out of 5 stars |
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From the brand
Amplifying Your Voice, Shaping Our Innovation
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Guided by our mission of "Redefining HiFi with Unmatched Value", Fosi Audio continues to fuel its passion for the Hifi industry, ramp up R&D efforts, and co-create new HiFi equipment with users. We pledge to bring more amazing Hifi gear with high value for the price, innovative design, cutting-edge technology, and premium quality, to audiophiles worldwide.
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Product Description
4 Channel Headphone Amplifier
Fosi Audio PH04 is a 4-channel amplifier that features 4 independent stereo high-power amplifier sections with separate volume knobs for each output allowing flexible control for different headphones or speakers.
Portable and Durable Metal Exterior
Portable and durable metal exterior, providing you with a comfortable and beautiful sound experience with a metallic feel.
12V/1A Power Adapter
Equipped with a 12V/1A power adapter, with overheat protection/overvoltage protection and other protection features, you do not have to worry about the use of headphone amplifiers in the process of easy to produce safety hazards.
| Customer Reviews | ||||||
|---|---|---|---|---|---|---|
| Type | Headphone Amp | Headphone Amp | Headphone Amplifier/Preamp | DAC+Headphone Amplifier/Preamp | DAC+Headphone Amp | DAC+Headphone Amp |
| MAX Power Output | 40mW@100 Ohm | 310³¾°Â°ª32¦¸ | 2400mW@32¦¸(High Gain); 300mW@32¦¸(Low Gain) | 3.5mm: 280mW@32¦¸, 4.4mm: 1100mW@32¦¸ | Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. | Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. |
| Input | 3.5mm AUX | 3.5mm AUX | 3.5mm line in | USB + Optical | PC-USB + Optical + Coaxial | USB-C + Optical + Coaxial+3.5mm Microphone |
| Output | 3.5mm Headphone ¡Á4 | 3.5mm Headphone ¡Á5 | 3.5mm line out, 3.5mm/6.35mm headphone jack | "3.5/4.4mm Headphone Jack, 3.5mm AUX/OPT" | RCA + 3.5mm Headphone | RCA + 3.5mm Headphone |
| Treble & Bass Control | X | X | ✓ | X | ✓ | ✓ |
| THD | <0.001% | <0.001% | <0.001% | ¡Ü0.01% | <0.003% | |
| SNR | ¡Ý105»åµþ | ¡Ý108»åµþ | ¡Ý120»åµþ | ¡Ý105»åµþ | >110dB | |
| Terminating Impedance | 15-150 Ohm | 16-300 Ohm | 16-300 Ohm | 16-300 Ohm | 16-200 Ohm | 16-300 Ohm |
| Power Adapter | 12V/1.5A | |||||
| Work Voltage | DC 12V | DC12V/1A | USB-C/DC5V | USB-C/DC5V | DC 5V | USB-C/DC5V |



















