Product Description

# Frequency Response: 10-20 000 Hz # Dynamic element for extended frequency response # Unique earbud design directs sound into the ear canal for deep bass and extended frequency performance # Speciality ear cushion material forms slowly in the ear canal to provide a custom fit and maximum isolation # Includes replacement ear

Product Details

• Amazon Sales Rank: #4067 in Consumer Electronics
• Brand: Koss
• Model: 156423
• Released on: 2007-10-28
• Original language: English
• Dimensions: 1.26" h x 4.49" w x 5.98" l, .9 pounds

Manufacturer's Description
The SparkPlug features a dynamic element that is positioned just outside the ear and connected to a tubular port structure that is inserted on a soft expandable cushion into the ear canal. The soft foam cushion expands for a custom fit to improve isolation and enhance deep bass and treble clarity. Now with improved slow memory ear cushion made of hydrophillic, formed urethane, you are guaranteed a custom fit every time.

Ths SparkPlug also featues a white cord to compliment many MP3 players. The fit enhances isolation when you want to plug out ambient sounds that interfere with the listening experience. The SparkPlug has a frequency response performance of 10Hz-20,000Hz and full Sound of Koss. Combined with your favorite music and a portable sound system, it is the ultimate accessory on the go.

Built to last, The SparkPlug is covered under Koss' No-Questions-Asked Lifetime Warranty - the only warranty of its kind in the stereophone industry.

Box Contents

Customer Reviews

Good, but...
I bought the Spark Plugs after I had misplaced my Plugs (the 1st Koss version), which were very good. I thought that the new updated Plugs would be better, however for me, they weren't as good. The white plastic speaker part is too deep for me, and protudes further out of the ear than the Plugs, which people can live with, and they ARE white, yey. However for me the biggest difference was that Koss had promised a better sound than the old version Plugs, but IMHO (I realise I am no expert), they're very bassy, almost too much so, with not enough treble and mid. You can however, remedy this by adjusting the sound qualities on your generic MP3 player, ie treble boost, which I didn't need to do for the original Plugs.
I suppose what I'm saying is if you're buying something like these for the first time, I'd seriously consider buying the Plugs, rather than the Sparkplug. What properties DO share though are incredible comfort, very light weight, good sound insulation and good bass. I hope this helps.

Better than sony
I previously owned the Sony MDR-EX70 - very comfortable but the sibilance was unbearable. No such problems with these superb Spark Plugs - slightly less comfortable but fantastic sound. I doubt you'd want them for classical music but for anything else these are awesome. If you like bass and sound isolation these are definitely worth a try.

The best ever !
I bought these about 4 months ago and they are fabulous. I was looking for something to replace the dreadful things Ipod provide with their quality player. I have found that the Spark Plugs stay in well whatever I am doing and the sound quality is very, very good. I'm sure what I'm doing that the guys who found them uncomfortable aren't but I have had them in for a four hour flight and never found them in any way uncomfortable in fact my only beef is that after about 2 hours you need to refit them. As for the sound qulaity the treble is quite natural and the bass is tight and controlled. The reason I think some people may find the bass a bit heavy is that for most other 'phones you need some bass boost in the equalisation and if your Koss's sound bass heavy turn the boost off. You will be thrilled with the results.