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Audeze iSINE 20 in-ear headphone (Factory Recertified)

In-ear planar magnetic headphones with Apple® Lightning® cable

1 Review

Item # 884ISNE20R

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Expected: 11/26/2018 Reserve risk-free

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Overview

Our take on the Audeze iSINE 20 in-ear headphone (Factory Recertified)

Looking for a sweet deal on a set of cutting-edge earbuds? Audeze gave us a limited batch of their factory-recertified iSINE 20 in-ear headphones, available at a discount. These hand-tested headphones go through the same thorough quality-control process as their new stock. That includes careful inspection and an extensive series of sound measurements.

Factory-recertified by Audeze

Looking for a sweet deal on a set of cutting-edge earbuds? Audeze gave us a limited batch of their factory-recertified iSINE 20 in-ear headphones, available at a discount. These hand-tested headphones go through the same thorough quality-control process as their new stock. That includes careful inspection and an extensive series of sound measurements.

How confident is Audeze in the performance of these factory-recertified iSINE 20 headphones? They're offering the same 1-year warranty that you get with a new pair. 

Audeze iSINE 20

Thanks to Audeze's cutting-edge planar technology, the iSINE 20 earbuds sound more spacious than a lot of over-ears.

Unique in-ear design for transparent, open-air sound

Audeze's iSINE 20 headphones feature the same break-through design as their sibling iSINE 10s, and I found they sounded even more spacious and detailed. The company shrunk their planar magnetic driver s— which are traditionally found inside their extra-large over-ear headphones — and fit them into a compact in-ear design.

For this model, they've included an extra-long voice coil that improves the precision and the depth of the sound. It also helps reduce distortion. The iSINE 10s are impressive headphones, but the iSINE 20s give you an even better-defined sense of space.  

More than just a Lightning cable

Audeze also included a detachable Apple® Lightning cable with its own built-in 24-bit DAC, so you can plug them directly into your iPhone® or iPad®. (You'll find a traditional 3.5mm cable, too.) 

And this special "Cipher" Lightning cable offers more than just a way to play nice with your Apple device. The built-in DAC and headphone amp are precisely matched to the iSINE 20's drivers. This means you get serious punch and clarity, just by plugging into your phone.

Planar-magnetic drivers: the basics

So how do planar magnetic headphones usually work? A large yet ultra-thin diaphragm is suspended within a magnetic field. It is covered with a flexible circuit. When the circuit receives an audio signal, the diaphragm moves back and forth to create sound. It starts and stops rapidly for clean and accurate sound across a wide frequency range.

How did Audeze fit that technology into an earbud?

The diaphragms used in the iSINE 20s are a fraction of the size used in most planar magnetic 'phones. Still, you can probably tell from the pictures that these headphones are bigger than most in-ear models. You stick the earbuds in your ears while the planar drivers actually sit outside.

To make up for the loss in diaphragm size, Audeze uses their super-powerful Fluxor magnets to provide quicker movement. These magnets are nearly double the power of a traditional magnet, making the iSINE 20 drivers incredibly efficient.

Product Highlights:

  • hand inspected and factory recertified
    • acoustics tested inside a sound-proof enclosure to ensure the drivers are accurately matched
  • one of the world's first in-ear planar magnetic in-ear headphones
  • open-back design for warm, spacious soundstage
Driver Details:
  • 30mm planar magnetic driver in each earpiece
    • ultra-thin diaphragm starts, stops, and moves swiftly within a powerful magnetic field
    • offers enhanced dynamics and detailed sound
  • Fluxor™ magnetic technology increases efficiency to keep headphones smaller and lighter
  • Uniforce™ diaphragm technology greatly reduces distortion
    • longer Uniforce voice-coil than used on iSINE 10 headphones
    • voice-coil etched across entire diaphragm to eliminate movement variations within the magnetic field
General Info and Specs:
  • ear hooks keep headphones stable and comfortable
  • silicone ear tips included
  • detachable Lightning listening cable included for high-definition audio from an iPhone or iPad
    • cable includes built-in DAC and headphone amp
  • Siri®-compatible microphone for voice commands and phone calls
  • detachable 59-inch flat audio cable with a 3.5mm plug
  • made of durable materials
  • designed by BMW DesignWorks USA
  • frequency response: 10-50,000 Hz
  • impedance: 24 ohms
  • weight: 0.7 ounces (without cable)
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the Box:

  • Factory recertified in-ear headphones
  • 59" Cipher cable with in-line remote/mic (with 2-pin connectors on one end and an Apple Lightning connector on other end)
  • 59" Audio cable (with 2-pin connectors on one end and straight 3.5mm plug on other end)
  • 3 Pairs of ear tips (1 pr installed)
  • 2 Pairs of Surefire EarLock retention rings (Med/Large)
  • 2 Pairs of ear hooks (black/translucent)
  • Clothing clip
  • Ear tip cleaning tool
  • Certificate of Authenticity card
  • User Guide on USB drive
Reviews

Audeze iSINE 20 in-ear headphone (Factory Recertified) Reviews

Average Customer Review(s):

(1 Review)
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Features and Specs

General
Noise-canceling No
Bluetooth No
Mic For Taking Calls Yes
iPhone Control Yes
Lightning Connector Yes
Android Control No
Frequency Response 10-50k Hz
Sensitivity Not Given
Impedance 24 Ohms
Weight 1.8 ounces
Cord Length 59" + 59"
1/4-inch Adapter Included No
Volume Control Yes
Parts Warranty 1 Year (3 Yrs Drivers)
Labor Warranty 1 Year (3 Yrs Drivers)

Product Research

Features

Factory Recertified: The factory recertified Audeze iSine 20 offers the same great look and performance as new stock. The headphones are thoroughly hand inspected by an Audeze technician who runs them through numerous sound measurement tests. Once the headphones meet the factory standards, they are recertified and sold with the same 1-year Audeze warranty as new stock.

Overview: The Audeze iSINE is the world's first full-range in-ear planar magnetic headphone. The iSINE 20 comes with two 59" cables--one designed for use with Apple iPhone/iPad/iPod touch, and one universal cable. The headphones come with two pairs of ear hooks, two pairs of ear locks, an assortment of rubber ear tips, and a handy storage case.

Planar Magnetic Technology: The iSINE Series headphones are a miniaturized, in-ear version of Audeze's flagship LCD collection of planar magnetic over-ear headphones. The iSINE 20 features large (30mm) ultra-thin planar magnetic diaphragms with the patented Uniforce voice-coil technology and a single-sided Fluxor magnetic array for greater accuracy and clarity. The iSINE 20 has a longer Uniforce voice coil than the iSINE 10, providing greater coverage over the magnetic diaphragms, giving the driver better control, better bass and clarity, and improved imaging. Even at high volumes, the distortion (THD) is less that 0.1% overall.

CIPHER Cable: The iSINE 20 comes with the award-winning CIPHER Lightning cable, which is especially optimized for the iSINE series and for Apple mobile devices. The cable bypasses the iDevice's internal DAC/amplifier, and streams a 24-bit high resolution signal directly to the in-line module. The module is equipped with a high-quality in-line amplifier, a digital-to-analog converter, and DSP (digital signal processor), plus a 3-button remote and microphone. The CIPHER cable is compatible with iPhone 7, 7 Plus, 6, 6 Plus, 5s, 5c, 5, iPad Air 2, iPad Air, iPad mini 2/mini 3, iPad 4th generation, and iPod touch 5th/6th generation. A universal audio cable is also included for non-Apple devices.

Audeze App: With the accompanying Audeze app, you can take advantage of a 10-band EQ that lets you adjust the sound in real time. You can adjust the following bands by + or - 10dB: 32Hz, 64Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, and 16kHz. You can save your favorite two EQ curves for later use, as they are stored in a non-volatile memory. The saved EQ curves can be used as you switch from one Apple device to another. The Audeze app requires iOS 8.1 or later, and is available for free download from the Apple iTunes App Store.

Fit: The iSINE 20 is designed to fit into the ear canal. It comes with three pairs (small, medium, large) of silicone ear tips to assure a correct fit. Two pairs (medium, large) of durable polymer Surefire EarLock retention rings comfortable lock the headphones into key points of your outer ear and keep them securely in your ear. There are also two pairs of ear hooks (black and translucent) that go behind the ear to hold the headphones in place. To keep the headphone cable in place, a clothing clip is included.

Specifications:

  • Frequency Response: 10Hz to 50kHz
  • Type: Semi-open-back planar magnetic headphones
  • Magnetic Structure: Single-sided Fluxor magnetic array
  • Magnet Type: Neodymium
  • Diaphragm Type: Ultra-thin with Uniforce voice-coil
  • Transducer Size: 30mm
  • Maximum Power Handling: 3 watts
  • Maximum SPL: >120dB
  • Total Harmonic Distortion: < 0.1%, full spectrum, @ 100dB
  • Impedance: 24 ohms
  • Dimensions: Width 1.298", Height 1.6", Depth 1.318"
  • Weight: 1.8 ounces (including CIPHER cable)

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 verify what’s in the box, 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.

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