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Knox portable Headphone Amplifier mixer 4 Channels Metal Stereo Audio Amplifier, Balanced Headphone Output Audio Input, 4 Channels Amp Metal Stereo Audio Amplifier, Mini Headphone Splitter dac

  • Based on 133 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 28
Order within 22 hours and 53 minutes
Available payment plans shown during checkout

Features

  • Four Independent Channels: Transmit and amplify sound to four headphone sets simultaneously. With 4 separate balanced volume controls, multiple people can listen to the same audio dac source at their own volume preference.
  • Crisp and Clear Sound: Turn up the volume on the headphone amplifier and enjoy the smooth and steady sound. This headset amp has 1/4" stereo input and output, with 1/8 - 1/4 adapters included for input and output. 12v Power adapter included.
  • Versatile and Multi-Purpose: The black headset splitter/amplifier /mixer is ideal for use in both the home and professional environment. Perfect for podcasting, video gaming, streaming, and choirs.
  • Studio Recording & Live Performance Microphones: The HDM-100 provides exceptional response across the entire audio spectrum. Suited for radio stations, recording studios, podcasting, gaming, computer streaming, worship groups, filmmaking, and live performance use.
  • Tough, Portable, and Compact: This ultra-compact design still delivers incredible sound. It has non-skid foam feet and a durable steel chassis that can withstand rough handling.

Product Dimensions: 6.1 x 7.4 x 3.4 inches


Item Weight: 1 pounds


Item model number: KN-HPA4


Date First Available: August 29, 2018


Manufacturer: Knox


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Sound quality
Item was of the most choicest quality. Fast to send. Immensely lovely packaging.
Reviewed in the United States 🇺🇸 on August 24, 2022 by daniel garay

  • Not as advertised
Two comments; Advertised as new but had been opened, cords unwound and packaging wadded up in box. Delivery claimed, "Handed to recipient", actually it was laying on the entry. If it was handed, it must have been to a neighbor who finished the delivery.
Reviewed in the United States 🇺🇸 on November 23, 2021 by ROBERT H.

  • Quality amplifier.
I purchased the Knox headphone amplifier to use with 2 sets of earphones. The input is from a tv. I wasn't expecting a large increase in amplitude from such a small and inexpensive device but was blown away by both the volume and quality of the sound. The amp powers a pair of Beats headphones and a pair of of Audio-Technica studio phones at about 50% on the volume controls. The amp is solidly constructed and the vol. controls are tight. The only drawback is the lack of an off/on switch but I just unplug the power cord from the front of the amp when not in use. Four 1/4" to 1 /8" adapters are included which eliminates the need to order them separately. I couldn't be more pleased with the quality and sound. ... show more
Reviewed in the United States 🇺🇸 on March 21, 2019 by rover

  • Great little amp
What's not to like, a small compact $30 amp that works great.
Reviewed in the United States 🇺🇸 on August 19, 2021 by sawdust

  • GREAT amp!
Purchased as a gift for my audiophile son and he rated it 5 stars after 2 weeks of use. He loves the sound quality.
Reviewed in the United States 🇺🇸 on January 13, 2021 by DeKalb Dad

  • Awesome piece of gear
Awesome piece. Can connect 4 headphones at the same time
Reviewed in the United States 🇺🇸 on August 1, 2021 by Joshua Emmanuel-Bessong

  • Good. But clips broke.
The spring clips broke. All of them. I like everything else about the amp. But now I need to figure out how to connect my wires.
Reviewed in the United States 🇺🇸 on February 5, 2021 by Rob

  • Need four people on headphones?
One of the headphone splitters on a budget. I do a few podcasts and with the additional adapters it has made my mixing life much better.
Reviewed in the United States 🇺🇸 on March 24, 2019 by Jon Little

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