WE ARE CLOSED FOR PASSOVER ON APRIL 23, 24, 29, AND 30. ALL ORDERS PLACED DURING HOLIDAY HOURS WILL BE SHIPPED UPON REOPENING.
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These ultra-low-noise operational amplifiers are included for outstanding audio performance.\u003cul\u003e\n\u003cli\u003eCompact Control Unit - Power On LED Indicator\u003c\/li\u003e\n\u003cli\u003eStereo Headphone Output Level Adjustment - Power Supply Included, DC 12V\/150mA \u003c\/li\u003e\n\u003cli\u003eIndependent Channel Rotary Volume Controls - Dimensions (W x D x H): 4.07'' x 1.18'' x 2.24''\u003c\/li\u003e\n\u003cli\u003e(4) 1\/4'' Stereo Headphone TRS Output Connector Jacks\u003c\/li\u003e\n\u003cli\u003e1\/4'' TRS Source Input Connector Jack\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- TABS --\u003e \u003c!--Details--\u003e\u003ch5\u003eDETAILS\u003c\/h5\u003e \u003cbr\u003e\u003cli\u003eCompact Control Unit\n\u003c\/li\u003e\u003cli\u003eStereo Headphone Output Level Adjustment\n\u003c\/li\u003e\u003cli\u003eIndependent Channel Rotary Volume Controls \n\u003c\/li\u003e\u003cli\u003e(4) 1\/4'' Stereo Headphone TRS Output Connector Jacks\n\u003c\/li\u003e\u003cli\u003e1\/4'' TRS Source Input Connector Jack\n\u003c\/li\u003e\u003cli\u003ePower On LED Indicator\n\u003c\/li\u003e\u003cli\u003ePower Supply Included, DC 12V\/150mA \n\u003c\/li\u003e\u003cli\u003eDimensions (W x D x H): 4.07'' x 1.18'' x 2.24''\n\u003ch5\u003eMANUALS \u0026amp; DOWNLOADS\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/manuals.pyleusa.com\/PDF\/PHA40.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003ePHA40 - Manuals\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e","published_at":"2023-12-20T14:37:22-05:00","created_at":"2021-11-09T16:38:26-05:00","vendor":"PylePro","type":"Sound and Recording","tags":["Headphones - MP3 Players"],"price":3799,"price_min":3799,"price_max":3799,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":40212298694691,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"PHA40","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"4-Ch. 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The compact, flexible PHA40 can power up to four pairs of headphones and up to four independent volumes. Grab this super-compact amp during your sessions to power practically any headphones--four of them at the same time, to be exact. This allows four people in your studio to listen to the main mix while recording and each listener can determine their own volume level using the dedicated output level controls. The PHA40 contains 4 high-power stereo amplifiers that maintain the highest sonic quality even at maximum volume levels. These ultra-low-noise operational amplifiers are included for outstanding audio performance.\u003cul\u003e\n\u003cli\u003eCompact Control Unit - Power On LED Indicator\u003c\/li\u003e\n\u003cli\u003eStereo Headphone Output Level Adjustment - Power Supply Included, DC 12V\/150mA \u003c\/li\u003e\n\u003cli\u003eIndependent Channel Rotary Volume Controls - Dimensions (W x D x H): 4.07'' x 1.18'' x 2.24''\u003c\/li\u003e\n\u003cli\u003e(4) 1\/4'' Stereo Headphone TRS Output Connector Jacks\u003c\/li\u003e\n\u003cli\u003e1\/4'' TRS Source Input Connector Jack\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- TABS --\u003e \u003c!--Details--\u003e\u003ch5\u003eDETAILS\u003c\/h5\u003e \u003cbr\u003e\u003cli\u003eCompact Control Unit\n\u003c\/li\u003e\u003cli\u003eStereo Headphone Output Level Adjustment\n\u003c\/li\u003e\u003cli\u003eIndependent Channel Rotary Volume Controls \n\u003c\/li\u003e\u003cli\u003e(4) 1\/4'' Stereo Headphone TRS Output Connector Jacks\n\u003c\/li\u003e\u003cli\u003e1\/4'' TRS Source Input Connector Jack\n\u003c\/li\u003e\u003cli\u003ePower On LED Indicator\n\u003c\/li\u003e\u003cli\u003ePower Supply Included, DC 12V\/150mA \n\u003c\/li\u003e\u003cli\u003eDimensions (W x D x H): 4.07'' x 1.18'' x 2.24''\n\u003ch5\u003eMANUALS \u0026amp; DOWNLOADS\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/manuals.pyleusa.com\/PDF\/PHA40.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003ePHA40 - Manuals\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e"}

4-Ch. Stereo Headphone Amplifier

$37.99
Maximum quantity available reached.
Product Description
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 PHA40 can power up to four pairs of headphones and up to four independent volumes. Grab this super-compact amp during your sessions to power practically any headphones--four of them at the same time, to be exact. This allows four people in your studio to listen to the main mix while recording and each listener can determine their own volume level using the dedicated output level controls. The PHA40 contains 4 high-power stereo amplifiers that maintain the highest sonic quality even at maximum volume levels. These ultra-low-noise operational amplifiers are included for outstanding audio performance.
  • Compact Control Unit - Power On LED Indicator
  • Stereo Headphone Output Level Adjustment - Power Supply Included, DC 12V/150mA
  • Independent Channel Rotary Volume Controls - Dimensions (W x D x H): 4.07'' x 1.18'' x 2.24''
  • (4) 1/4'' Stereo Headphone TRS Output Connector Jacks
  • 1/4'' TRS Source Input Connector Jack
Sku: PHA40
Vendor: PylePro

  • Compact Control Unit
  • Stereo Headphone Output Level Adjustment
  • Independent Channel Rotary Volume Controls
  • (4) 1/4'' Stereo Headphone TRS Output Connector Jacks
  • 1/4'' TRS Source Input Connector Jack
  • Power On LED Indicator
  • Power Supply Included, DC 12V/150mA
  • Dimensions (W x D x H): 4.07'' x 1.18'' x 2.24''
  • QUESTIONS & ANSWERS

    Ask a Question
    • The output of the amplifier is low. For example, when the line out on my mixer is run into the PHA40 it is too low to listen to on the headsets. I have a cheap little USB powered headphone amplifier that does a sufficient job on most audio. When I run the headphone output of that cheap amp into the line in on the PHA40 (to simulate using the PHA40 as a headphone line distributor), the audio level actually gets reduced! Is that as loud as the PHA40 gets or did I get a defective unit? BTW, before sending this question, I did some research and found that some 'low output' PHA40 actually had a 470 ohm isolation resistor instead of the 47ohm the circuit was designed to use. (the 470 markings on a PC board is 47 x 10^0 meaning 47 not 470 ohms) I used to do electronic repair, so I do understand the problem and how easy a mistake would be if you changed the people that populate the boards. I was tempted to repair mine, but I came to my senses. I will probably send these back to Amazon and get my $19 plus tax back.

      You can take the Headphone-out jack of the mixer going into the PHA40

    • My mic and headphones are mini plugs (3.5mm). If I use adapters to connect with the 1/4 inch will that affect performance?

      No it does not.

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