Klipsch Reference S4

In-ear headphones

  • Klipsch Reference S4


  • Klipsch Reference S4

    Minijack connector

  • Klipsch Reference S4

    Product box (Back)

  • Klipsch Reference S4

    Product box (Front)

  • Klipsch Reference S4

    Shown with included accessories

Item #: 714REFS4

Review Summary

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Our take on the Klipsch Reference S4

by Dave Bar

Hear what you're missing!

Experience realistic, high-performance sound with the Klipsch Reference S4 in-ear headphones. They're built to cover a wide acoustic range, delivering dynamics and detail plus deep, rich bass. Your music will sound clear and natural, whether you're jamming to a killer guitar riff or relaxing to a smooth jazz groove.

shown with accessories

Comfort, good looks, and convenience

The Reference S4s feature angled housings for proper in-ear alignment that reduces strain on your ears. Klipsch's patented oval ear tips fit the natural shape of your ear canals better that standard round ones for hours of listening comfort. These ear tips also create a tight seal to help minimize outside noise and enhance bass, so you can enjoy your music at lower, safer volumes. And since the noise reduction is passive, no batteries or active electronics are ever needed.

These 'phones feature a handsome gloss black finish with copper accents for a stylish look. The durable, tangle-resistant cable prevents snarls while the supplied clothing clip helps keep it in place when you're on the move. And the Reference S4s include a handy case for storage and travel.

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  • sound-isolating earbud design
  • dynamic moving coil micro speaker in each earbud
  • frequency response: 10-19,000 Hz
  • sensitivity: 110 dB
  • impedance: 18 ohms
  • stylish piano black finish with copper accents
  • includes an assortment of soft washable ear tips for a comfortable fit
  • 51" straight cord with stereo mini plug
  • compatible with MP3 players and other portable devices with a stereo minijack
  • includes aluminum carry case and shirt clip
  • weight: 0.42 oz.
  • warranty: 2 years
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Fit Style
Earcup Type
Frequency Response
10-19k Hz
110 dB
18 Ohms
0.42 ounces
Cord Length
Airline Adapter Included
iPod Control
Volume Control
Built-in Microphone
Parts Warranty
2 Years
Labor Warranty
2 Years
Product Research
What's in the box?

Download owner's manual

  • In-ear headphones (with attached 51" cord terminated by a 3.5mm connector)
  • 3 Pair of silicon single-flange ear-pieces (S/M/L)
  • 1 Pair of silicon dual-flange ear-pieces
  • Aluminum carrying case
  • Owner's Manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


Reference Sound: The Reference S4 in-ear headphones deliver realistic sound  through the use of a single, moving coil micro-driver (or mini-speaker) per channel. These drivers cover a wide frequency range (10Hz-19kHz) with dynamic detail and deep bass.

Noise Isolating Ear-Tips: The Reference S4 features angled housings for proper in-ear alignment. The Klipsch Reference S4's exclusive soft and flexible oval ear-tips naturally fit the contours of your ear canals, providing comfortable long-term wear as well as producing a perfect acoustic seal. A good seal minimizes outside noise, also known as noise isolation (up to -16), and allows you to enjoy your music at lower, safer volumes. The Reference S4 comes with four different sizes of washable ear-tips;  small, medium, and large single-flange ear-tips, plus pair of dual-flange ear-tips.

51" Headphone Cable: The Reference S4 in-ear headphones feature a durable 51" headphone cable with built-in strain relief.

Gold-Plated Connector: The Klipsch in-ear headphones feature a gold-plated, male 3.5mm connector, so it works with any portable device that features a standard 3.5mm headphone output.

Carrying Case: The Reference S4 comes with an aluminum carrying case to store the headphones when not in use.

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Klipsch Reference S4 Reviews

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5 out of 5

Klipsch Reference S4

Written By RamonQ, Espanola,NM on Sunday, September 09, 2012
Crutchfield Customer Review (What's this?)
For the what you pay for them, i believe they sound outstanding.
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"Coolness Factor"
Build Quality
Noise Reduction
Sound Quality

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