Denon AH-C820 Powerful Dual Driver In-Ear Headphones

Model: AH-C820 UPC: 883795004060 Item: 167353


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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
  • Mon: 9:30am - 8pm
  • Tues - Fri: 9:30am - 6pm
  • Sat: 9:30am - 5pm
  • Sun: 12pm - 5pm
(215) 368-8343
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38 Greenfield Avenue, Ardmore, PA 19003
  • Mon - Fri: 10am - 6pm
  • Sat: 10am - 5pm
  • Sun: Closed
(610) 649-7002
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Our Take on the Denon AH-C820 Headphones

The Denon AH-C820 In Ear Headphones deliver the best sound regardless of if you’re working, traveling or relaxing. Denon used a half a century of experience to create the best possible performance from compact, light weight headphones. The sleek yet functional design uses separate wires from the plug to each driver for ultimate signal purity.

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Combining Comfort with No-Compromise Sound

Drawing on half a century of Denon headphone engineering experience, the AH-C820 Powerful Dual Driver In-Ear Headphones are designed to combine comfort with no-compromise sound. Aimed at those who want the very best sound whether traveling, working, or relaxing, these new in-ear models are packed with advanced Denon technologies, designed to deliver the best possible performance from compact, lightweight earphones.

Sleek, Functional Design

The range-topping AH-C820 headphones incorporate Denon’s unique Double Air Compression Driver technology for powerful bass and ultimate clarity. It uses two 11.5 drivers, one in front of the other, to move more air and thus deliver powerful, low-distortion bass. This patented design also uses separate wires from the plug to each driver, for ultimate signal purity – another Denon world-first.

The drivers are mounted in housings combining die-cast aluminium and resin that are designed for rigidity and vibration-damping, while dual Denon Acoustic Optimizer ports to the front and rear of the housing help equalize the air-pressure in front of and behind the drivers. It’s all part of making the sound as dynamic and distortion-free as possible. 

Proper Noise Control

Audio enthusiasts often complain about the noise generated from the cable rubbing against their chest when they’re moving. Denon’s specially designed Radial Cascade Damper system reduces cable-transmitted vibration noise, enabling you to enjoy studio-quality music on the go.

Comfortable Fit

In addition, the AH-C820 is fitted with Comply TX500 ear-tips, which combine with the ergonomically-shaped housings to give a secure fit for the purest sound and maximum isolation from external noise. The tips use memory foam activated by the heat of the user’s ears, and have an integral wax-guard to keep the inside of the earphones clean. Four sizes of silicon ear tips are also provided, along with a carrying case and cable clip. 

Convenient Listening

The AH-C820 can be used with the dedicated Denon Audio Application for iOS and Android, allowing you to enhance the sound and tune it to suit your personal preferences. This app not only optimizes the sound of portable devices, it also offers an improved player interface supporting queuing and playlisting, and allows the user to access over 70,000 radio stations and 2 million on-demand programs via the TuneIn Internet Radio platform.



  • Impedance: 16 ohms
  • Sensitivity: 115dB/mW
  • Maximum power input: 250mW
  • Frequency response: 4 - 40,000Hz
  • Weight: 10.4g

What's in the Box

What's in the Box:

  • AH-C820 Powerful Dual Driver In-Ear Headphones
  • Carrying case
  • One pair of Comply TX500 ear tips
  • Four pairs of silicon ear tips (extra small, small, medium, large)
  • Cable clip




Customer Reviews for Denon AH-C820 Powerful Dual Driver In-Ear Headphones

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Initial impression
I just received my pair of AH-C820s and they are top notch. The sound quality is insanely good, the Beats and the Bose headphones honestly don't even come close. Even at high volumes, these things produce deep bass and crystal clear sound. It really is impressive for a pair of in-ear headphones. I would highly recommend these things. This is my second pair of Denon in-ear headphones and they truly produce great quality products. I only wish it came with a more protective case, as the provided case leaves the headphones exposed.
April 21, 2017
Originally posted at
Killer quality, very good sound
The best earphones for $200 and under. Better than Sennheiser ie 80, Momentum, Shure 315, Klipsch x12.
They sound very similar to Bowers and Wilkins C5 series 2. but are extremely well built. Treble is very clear, Bass is very deep and mids are very much there but a little less prominent than the treble and bass. No microphonics and tangle issues with cables and earpieces and carry case are bullet proof. These earphones and all parts are better quality than the 1More Triple s. You will never regret buying these.
December 28, 2016


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Why did you choose this?
World Wide Stereo Store
Reviews. I like Denon products, good stuff.
Dennis O on Apr 23, 2018
Reviews. I like Denon products, good stuff.
Dennis O on Apr 23, 2018