SKU: 60925241724

HC1 High Current Headphone Amp

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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

HC1 High Current Headphone AmpThe HC1 is an expandable, high powered headphone amp designed specifically for critical studio monitoring. The HC1's circuit employs parallel amp stages for greater power and lower distortion. This parallel opamp concept has been known in theory for decades and was put to practical use in Douglas Self's "5532 OpAmplifier" power amplifier. As a result, the HC1 sounds clean and clear even at high gain and when driving low impedance headphones. Because

The HC1 is an expandable, high-powered headphone amp designed specifically for critical studio monitoring.

The HC1's circuit employs parallel amp stages for greater power and lower distortion. This parallel-opamp concept has been known in theory for decades and was put to practical use in Douglas Self's "5532 OpAmplifier" power amplifier. As a result, the HC1 sounds clean and clear even at high gain and when driving low-impedance headphones.

Because everyone's monitoring needs are different, the HC1 is designed to be customized. The power and audio input connectors are screw terminals, so you can attach whichever jacks you need without soldering. You can also daisy chain multiple HC1s to make a multi-channel headphone amp.

The HC1 is a great project for intermediate builders who enjoy the challenge of choosing their own chassis and inputs.

Features

  • High-current, dual-amp design
  • Screw terminals for power and audio input
  • Stereo, unbalanced audio input
  • Accepts 9v battery or DC wall-wart power input
  • Mounting holes for case mounting
  • Runs about 50 hours on a single 9V battery
  • Does not include power or audio input jacks

Partial Kit Includes

  • Printed Circuit Board (PCB)
  • 2x NE5532 opamps
  • All resistors and capacitors required
  • TRS 1/4" headphone jack
  • Volume potentiometer and knob
  • Screw terminals for power and audio input

Source Your Own

  • Power supply or batteries
  • Chassis
  • Input jacks
Specs

Mechanical

Electrical

  • Input Impedance: 20kΩ
  • Current Draw: 10-20mA
  • Gain: 0-10dB (customizable)
  • Power Supply: 9 to 44VDC
Resources
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60925241724

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4.5 ★★★★★
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Verified Purchase
Sandra
Houston, US
★★★★★ 1
My dog was scared
Color: Blue
It scared my dog, he didn’t like it at all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
N
Nate
Birmingham, US
★★★★★ 5
Good interactive toy that keeps even my poodle mix busy
Color: Blue
We have a poodle mix that easily gets bored with most toys, including the other interactive bouncy balls. This toy seems to keep him busy though and so far he has not destroyed it or grown bored of it. The only problem we have is keeping it charged because he seems to wear it out but it is not a problem to recharge it with the USB cable that is included. It is a little tricky screwing the toy back together after charging the battery but I am getting the hang of it. Once it is set to one of the play modes the ropes on top (that you need to put on) will start spinning back and forth and the toy gyrates around seeming like it is alive to our dog. The loves playing with it in all of the modes but I think he likes that faster modes better. It comes with an extra rope which was good because our raptor dog already ripped the first one apart. The price on this toy is relatively low compared to tother toys to I highly recommend this for anyone that has a dog who is bored with the typical play toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
S
Verified Purchase
S. Weir
Lowell, US
★★★★★ 5
Great entertainment for kittens too!
Color: Blue
My kittens love this toy and play with it more than my dog. I bought it on sale. I am impressed with the quality, ease of use, and I rarely need to charge it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
S
Verified Purchase
Sue Elliott
Lexington, US
★★★★★ 1
Do not buy… false advertising does not move!!
Color: Red
Terrible!!! No directions & no movement at all!!! Button?? Push…. Sure there is no button No way to charge… Scam
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Reviewed in the United States on May 29, 2026
C
Verified Purchase
Carolyn frog1
New York, US
★★★★★ 5
Great toy for dogs
Color: Red
My dog loves this toy, it was well worth the money. And I’m glad it charges with USB and not batteries.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026

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