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HD 660 S + Apogee


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This bundle brings together the HD 660 S, Sennheiser’s top-of-the-range, open, dynamic headphones, with the Apogee Groove - a USB DAC and headphone amp. Enjoy the full dynamic range and ultra-low distortion levels of one of Sennheiser’s all time great headphones on your PC or Mac.

Overview

With music files played on PCs and Macs or from services like Spotify, Google Play, Apple Music and Tidal, the output of the computer can prove to be a bottleneck that limits the ability to deliver sufficient power and quality to a set of audiophile-grade headphones.

No longer: A new bundle offered by Sennheiser brings together the HD 660 S, Sennheiser’s top-of-the-range, open, dynamic headphones, with the Apogee Groove - a USB DAC and headphone amp. This combination lets the PC or Mac user enjoy the full dynamic range and ultra-low distortion levels of one of Sennheiser’s all time great headphones.

In the new bundle, Sennheiser’s high-end audio expertise is perfectly complemented by Apogee’s 30-year pedigree as an innovator and industry leader in digital audio recording. The world’s most successful artists, producers and audio engineers rely on Apogee products to capture GRAMMY winning performances.

What is a DAC and why is it important?

If you’re a music lover and you want the best listening experience, one of the key ingredients in the quality of your sound is the digital-to-analog converter or DAC.

A DAC takes the digital information on your computer and translates it into analog sound you can hear through your headphones and speakers.

Not all DACs are created equal. Your computer has a DAC built-in, however without a high quality DAC like Groove, you will miss out on much of the subtlety, detail and dimension of music you listen to - regardless of what headphones or speakers you use.

Features

  • Systems with narrow tolerances (± 1 dB), hand-picked in pairs
  • Highly optimised magnet systems for minimum harmonic and intermodulation distortion
  • A specially developed damping element, made from fine acoustic metal mesh, ensures a precise damping over the entire diaphragm surface, highly constant in all climates
  • Specially modulated connecting cable (detachable) made from highly conductive OFC copper, with very low handling noise, i.e. low structure-borne sound sensitivity
  • Extremely lightweight aluminium voice coils ensure excellent transient response
  • Gold plated 1/4" jack plug with adapter lead to 3.5 mm jack plug
  • Apogee Groove Features below:
  • USB 2.0 connection to Mac and PC
  • Up to 24 bit / 192kHz audio
  • ESS Sabre DAC
  • Constant Current Drive™ provides smooth frequency response with any headphones
  • Quad Sum DAC™, 4 DACs per channel for highest dynamic range and lowest distortion, Asynchronous clocking, Powered by USB
  • Compact and portable (95mm L x 30mm W x 16mm H)
  • Premium aluminium build quality
  • 2-year warranty

Technical Data

Wearing style

Headband

Connector

6.35 mm / 4.4 mm Pentaconn /3.5 mm Adapter

Frequency response (Headphones)

10 - 41,000 Hz (-10 dB)

Sound pressure level (SPL)

104 dB at 1V RMS, 1kHz 

THD, total harmonic distortion

< 0.04% (1 kHz, 100 dB) 

Ear coupling

Circumaural 

Cable length

3 m

Transducer principle

Dynamic, closed

Weight

215 g

Nominal impedance

150 Ω

Weight w/o cable

Approx. 260 g

What's in the box?

  • HD 660 S
  • Cable with 6.3 mm plug, balanced cable with 4.4 mm Pentaconn plug
  • 6.3 to 3.5 mm adapter
  • Apogee Groove
  • Manual

Customer Reviews

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