Price: ₹6,999 - ₹3,999.00
(as of Mar 11, 2025 04:22:37 UTC – Details)
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 Power Adapter
Equipped with a 12V 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.
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Customer Reviews
4.1 out of 5 stars 874
4.3 out of 5 stars 2,857
4.4 out of 5 stars 517
4.3 out of 5 stars 424
4.3 out of 5 stars 300
4.2 out of 5 stars 118
Price
₹6,299.00₹6,299.00 ₹9,342.00₹9,342.00 ₹3,999.00₹3,999.00
— no data ₹7,999.00₹7,999.00
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Type
DAC+Headphone Amp DAC+Headphone Amp Headphone Amp Headphone Amp +Preamp DAC+Headphone Amp DAC+Headphone Amp
MAX Power Output
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. 40mW@100 Ohm Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. 120mW@32 Ohm(SE); 220mW@32 Ohm(BAL) 120mW@32 Ohm(SE); 250mW@32 Ohm(BAL)
Input
USB-C + Optical + Coaxial+3.5mm Microphone PC-USB + Optical + Coaxial 3.5mm AUX AUX + RCA Type C+ USB A Type C+ USB A
Output
RCA + 3.5mm Headphone RCA + 3.5mm Headphone 3.5mm Headphone 3.5 mm + 6.35 mm 3.5mm Headphone+ 4.4mm Headphone 3.5mm Headphone+ 4.4mm Headphone
Treble & Bass Control
✓
✓
x x x x
THD
<0.003% ≤0.01% – no data
≤0.03% “≤ 0.0006%(SE) ≤ 0.001%(BAL)” “≤ 0.0006%(SE) ≤ 0.001%(BAL)”
SNR
>110dB ≥105dB – no data
≥ 95dB ≥120dB ≥108dB
Terminating Impedance
16-300 Ohm 16-200 Ohm 15-150 Ohm – no data
16-300 Ohm 16-300 Ohm
Power Adapter
– no data
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12V 12V – no data
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Work Voltage
USB-C/DC5V DC 5V DC 12V AC 110V – 240V – no data
– no data
【4 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.
【Upgraded 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!
【Great 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.
【Ultra-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.
【What You Get】PH04 Amp x1, 12V DC power adapter x1, user manual x1, our worry-free 24-month warranty, and friendly customer service.
Friendly customer service: support@fosiaudio.com.