The PHA40 4-Channel Stereo Headphone Amplifier from Pyle-Pro is a compact and lightweight stereo headphone amplifier that allows up to 4 users to listen to the same audio signal. The amp has a stereo 1/4" input jack and a set of 4 stereo 1/4" outputs. Each output has its own level control knob, letting users set their ideal volume level individually. There is a red power LED to provide visual indication that the unit is receiving power. It operates on 12VDC power via the included power supply.
- Compact Design
- 1/4" Stereo Jacks
- Individual Level Controls
- Power LED
Pyle Pro PHA40 Overview
Pyle Pro PHA40 Specs
Form Factor | Tabletop |
Number of Headphone Channels | 4-Channel |
Headphone Output Power | 40 mW into 100 Ohms |
Analog Audio I/O | 1 x 1/4" TRS Stereo Input 4 x 1/4" TRS Headphone Output |
Gain/Trim Range | 20 dB |
Maximum Input Level | +15 dBu |
Impedance | Inputs: 100 Kilohms (Unbalanced) Outputs: 80 Ohms |
THD | < 0.03% |
SNR | ≥ 90 dB |
Power Requirements | AC/DC Power Adapter (Included) |
DC Input Power | 12 VDC at 150mA |
Dimensions | 4.07 x 2.24 x 1.18" / 104 x 57 x 30 mm |
Weight | 0.4 lb / 0.2 kg |
Package Weight | 0.65 lb |
Box Dimensions (LxWxH) | 7.1 x 5 x 2.5" |
Pyle Pro PHA40 Reviews
Easy way to split stereo out
Useful to split and send stereo signals out to AUX in of other devices. No signal loss and clean replication.
poor build quality low end but functional
this is essentially a disposable unit. I had one for two years, used it in frequently and then if failed, so I replaced it with this. It's low cost and functional but basically junk
works great
I am building a flight simulator and used it to amp up my headset worked great.
Super compact
I love how tiny this little amp is. Great for saving space on a cluttered workstation.
Great little Distributer
We are giving the podcasting venture a try. We realized that we all need to hear each other, but also some people are half deaf need to be turned up more than others. this helps correct how loud your set is and make it comfortable to you. this way no one has any bleeding ears from our awful podcasts.
Cheap design, works only for limited applications
The internal circuitry is rather cheap. Instead of dedicated amplifiers it uses a cheap and old op-amp amplifier circuit. It works, but can't provide too much output power. It would have high distortion with low-impedance headphones. Worse yet, it doesn't have any internal power regulation and completely depends on the power supply for that. This means that switching power supplies would have unacceptably high noise and this circuit is only usable with transformer-based power supplies. The PCB is secured by only two screws, which means it can bend quite significantly when jacks are inserted or removed. This could cause circuit failures.
must have
must have
Excellent Amplifier
Excellent amplifier for headphones.
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