SKU: 60925241724

HC1 High Current Headphone Amp

Sale price$9.00 Regular price$10.00
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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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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4.7 ★★★★★
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JenR
Draper, US
★★★★★ 5
Affordable shoes that actually hold up
Size: 8, Color: White
I bought these for my son to wear to a quinceañera since he needed plain white shoes and I didn’t want to spend much for a one-time event. They ended up being his favorite pair. He’s worn them to school several times a week for the past 7 months, and they’ve held up really well. There’s some normal wear, but they still look good and he says they’re comfortable. I’m pleasantly surprised by the quality for the price and will likely buy another pair soon.
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Reviewed in the United States on May 6, 2026
B
Verified Purchase
Bc Sam
Waukegan, US
★★★★★ 5
SNEAKER SNEAKER!
Size: 13, Color: White
DONT BUY These, Let me keep all of them because they are my go to summer shoe!! These are great! real leather and they don't make your feet feel like there in plastic wrap, they are comfortable and worth the buy! But like I said don't buy them just let me keep buying them!.
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Reviewed in the United States on May 26, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
Very nice look
Size: 13 Wide, Color: Brown
Very nice look, sole is comfortable, inside upper leather is a bit stiff. Not enough to hurt but not soft. I would purchase another color.
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Reviewed in the United States on May 28, 2026
L
Verified Purchase
les tuttle
Chelsea, US
★★★★★ 3
Nice shoes but no half sizes.
Size: 11, Color: Brown
I had to return the shoes because they do not have half sizes. Other shoes i always wear an 11. That was tight with these and 12 would be to big.
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Reviewed in the United States on May 10, 2026
W
Verified Purchase
W. Arroyo
Phoenix, US
★★★★★ 5
Great shoes
Size: 9.5 Wide, Color: Black/City Skyline/Egret
Great-looking casual shoes that are very comfortable to wear. Perfect for evening outings and long periods on your feet. Stylish, well-made, and comfortable from day one. Highly recommended!
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Reviewed in the United States on June 3, 2026

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