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  • Denon AH-C551K In-Ear Headphone (Discontinued by Manufacturer)
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Denon AH-C551K In-Ear Headphone (Discontinued by Manufacturer)

by Denon

Currently unavailable.
We don't know when or if this item will be back in stock.
  • In-Ear Headphone
  • Aluminum housinig with deeper base performance
  • 3 Sizes of ear pads; hard shell carrying case and extension cable with L-Type connector included.

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Technical Details

  • Brand Name: Denon
  • Model Number: AHC551K
  • Color: Black
  • Item Weight: 0.01 pounds

Product Description

Denon's exclusive Acoustic Optimizer technology for enhanced bass response. Canal-type inner-ear headphones reduce ambient noise. Aluminum housing. Tangle-resistant elastomer cable. Includes 3 sizes of ear pieces for comfort fit and carrying.

Product Details

  • Product Dimensions: 4.1 x 1.7 x 6.6 inches ; 0.2 ounces
  • Shipping Weight: 5 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B000WVCO7Y
  • Item model number: AHC551K
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (64 customer reviews)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: April 18, 2005

Customer Questions & Answers

Customer Reviews

4.1 out of 5 stars

Most Helpful Customer Reviews

17 of 17 people found the following review helpful By Dreadwing on September 11, 2008
Package Type: Standard Packaging Verified Purchase
Build Quality: Excellent and sturdy, thick cables and sturdy plugs

Isolation: So far so good for me with the supplied plugs, others who may not feel comfortable may want to try out the Sony Ex series plugs.

Sound Quality: The sound quality is phenomenal, it beats out my Shure e4 on the bass and has very good mids & highs. I've used it for a couple of days an I can't put them down.. I've never enjoyed using plugs this much to be honest.

I've had the Eytmotic er6i & the Panasonic HJ-E70 & Shure Ec3 & Ec4, V-moda Vibes, and I'm most comfortable with these, it's worth the price and more.
I can definitely recommend these to anyone.
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15 of 15 people found the following review helpful By Kent Hasel on May 14, 2008
Package Type: Standard Packaging Verified Purchase
These headphones really show how poor the iPod headphones are. I can hear things in my music I didn't even know were there. I find them very comfortable and for me the "normal" size inserts work great but having a couple other sizes is nice. The only down side I see is the use of a extension cord which makes the cord heavy hanging down at times which can get it caught on something or even pull a ear bud out at times. I did find that by uncoupling the cord I could untangle more quickly which helped make up for that annoyance. For the price I don't think you could find better.
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21 of 24 people found the following review helpful By Devinity on April 6, 2008
Package Type: Standard Packaging
Incredible bass!!! Lows and highs are magnificently detailed and highs are not drowned out at all. Close to the V-Moda Vibe in terms of sound signature, but superior in every regard. Better than Super.Fi 3, 5 EB, 5 Pro. On arguably par with Shure SE310. Solid machined aluminum housing is an advantage.

Denon AH-C700 is about 10%-20% improvement, but not at all worth twice the price.

Recommend the Sony EX replacement tips (available from sonystyle) for better comfort. If you have trouble getting a proper seal, try tips from Koss, (available from the Koss website).

These are relatively new (Nov '07) and thus haven't been reviewed much. The C700 has been out. These are big time favorites by nearly everyone who has used them[...].

Far superior to everything else in this price range, you absolutely will not be disappointed by the Denon AH-C551.
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8 of 8 people found the following review helpful By J. Genson on June 10, 2009
Package Type: Standard Packaging Verified Purchase
I collect headphones, and occasionally review them here on Amazon. I review them using a six-song test and rating system, where 0 - 2 is abysmal, 2.1 - 4 is poor, 4.1 - 6 is mediocre, 6.1 to 8 is above average, and 8.1 to 10 is excellent.

The songs I used for the review were taken from a wide range of genres. They are "The Chain" by Fleetwood Mac, "Every Planet We Reach is Dead" by Gorillaz, "Concerto Grosso no. 26 in D Major" by Handel, "I Know You Are, But What Am I?" by Mogwai, "Afro Blue" by Triplexity, and "The Patient" by Tool. I listened to everything on a Cowon iAudio 7 with all sound effects turned off and the equalizer set to flat.

Sound Quality(9.3/10)

The Chain(9/10) - bass is punchy but not exaggerated. Mids are rich. Treble is crisp and clear. Instrument separation is great, and sound stage is impressive for IEMs. Very balanced overall sound.

Every Planet(10/10) - again, the bass is deep and punchy, but very clean. Mids and highs are smooth and balanced. Instrument separation is very good, as is the sound stage.

Concerto(9/10) - bass, mid tones, and treble were all even and balanced. Instrument separation was clear, and sound stage was, again, impressive.

I Know You Are(9/10) - as with the other songs, the sound in this one seems clean and balanced, with good instrument separation and a fantastic sound stage.

Afro Blue(10/10) - bass is impressively deep, clean, and unexaggerated. The mid tones are pleasantly vibrant, as are the highs. Instrument separation is solid, and sound stage is unsurprisingly broad and impressive.

The Patient(9/10) - clean, punchy lows with vibrant mids and crisp highs. Excellent instrument separation; even more excellent sound stage.

Overall Sound(9.
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7 of 7 people found the following review helpful By stranger on May 20, 2008
Package Type: Standard Packaging
Bought these for my son but I tried them out. If you aren't looking for in-ear headphones that you plan on carefully inserting and leaving alone, then look at these. They can be popped in and out very easily and quickly and they are inconspicuous. They seal just fine - but maybe not as well as some of the super-seal foam types. For many people, this is a good thing. The sound is really great, with balance from highs to lows, and really nice separation. Especially at the price of about $68. If these are not good enough in sound quality, maybe look to a different style of headphone all together, or spend a lot more money. Negatives? The cord is a two piece that is too long when joined and too short when separated.
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6 of 6 people found the following review helpful By Brian Vollrath on June 12, 2008
Package Type: Standard Packaging Verified Purchase
These are nice phones. They are built solid for their size. They are comfortable, block out noise, and have wide frequency range that is fairly flat across the whole range. I use them when I go out bicycling and they block out most outside noise. I do get some wind noise but it is at a tolerable level.

The bass is good when I angle speaker part upward when I insert it into my ear canal. You might have to play around with the angle to get the best sound. These phones have great sound clarity and low distortion. After reading different reviews, I picked these over the Shure line because the sound quality from the Denon's is just as good maybe better. Plus the price is alot nicer. I like them and would recommend them without hesitation to any friend.
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