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Audio-Technica ATH-DSR9BT Wireless Over-Ear Headphones w/ pure Digital Drive

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  • $ 549
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The ATH-DSR9BT over-ear wireless headphones employ Audio-Technica’s new Pure Digital Drive system, which allows the headphones to operate without a sound-degrading D/A converter that conventional wireless headphones rely upon. Instead, the ATH-DSR9BT utilizes Trigence Semiconductor’s Dnote chipset to receive the digital audio signal from a Bluetooth wireless transmission, process and transfer it to the driver where the digital pulses of the chipset move the voice coil and diaphragm forward and backward to create the sound waves heard by the listener.  

The Pure Digital Drive system likewise depends on a re-engineered 45 mm True Motion Driver, which features a lightweight diaphragm with DLC (diamond-like carbon) coating for superlative fidelity and extended 5 Hz – 45,000 Hz frequency response. The driver’s 4-core twisted OFC-7N voice coil provides precise control of the diaphragm displacement, and an acoustic resistor controls the airflow in front of and behind the diaphragm to ensure smooth, natural audio reproduction across the entire frequency range. The entire driver assembly is housed within a layered aluminum structure that minimizes unwanted resonance and isolates the electric circuitry from the housing’s acoustic space, resulting in optimal phase and transient response.

The Pure Digital Drive system also enables the ATH-DSR9BT to overcome the sonic limitations of conventional Bluetooth wireless transmissions by supporting the 24-bit/48kHz Qualcomm® aptX™ HD codec. (aptX, AAC and SBC codecs are also supported.) The headphones can reproduce Hi-Res Audio when connected to a computer or other digital playback device via the included 2.0 m (6.6') USB cable.

The ATH-DSR9BT is equipped with a microphone, volume control and simple tap control for answering / ending calls and playing / pausing music on a smartphone or other device. Three LED indicators allow you to easily monitor pairing and charging status, battery level, and the codec currently in use. The headphones’ internal lithium polymer battery provides approximately 15 hours of continuous use (up to 1000 hours in standby mode) and can be recharged using the included USB cable.

FEATURES

  • Exclusive Pure Digital Drive system keeps audio signal completely digital from source to driver for exceptionally pure sound
  • Dnote chipset controls driver amplitude directly w/ digital signals - no D / A converter required
  • Compatible w/ Qualcomm aptX HD, aptX, AAC, and SBC codecs, enabling wireless transmission w/ a resolution up to 24-bit / 48kHz
  • Exclusive 45 mm True Motion Driver, featuring 4-core twisted OFC-7N voice coil and diaphragm w/ DLC (diamond-like carbon) coating, extremely accurate audio reproduction w/ extended high frequencies
  • Housing's dual-layer isolation structure keeps the electric circuitry separate from the acoustic space for optimal phase and transient response 
  • Accousting resistor controls airflow inside the diaphragm housing yielding more natural sound
  • Mic and volume / control switch are built into the earcup for convenient control of smartphones and other bluetooth wireless devices
  • NFC (Near Field Communication) functionality enables touch pairing w/ NFC-compatible Bluetooth® wireless devices
  • Remembers the last eight Bluetooth wireless devices paired
  • LED indicators in the earcup display pairing and charging status, battery level, and the codec currently in use
  • Heat-reactive soft foam earpads and an easily adjustable leather headband provide a comfortable fit w/ outstanding sound isolation
  • Internal battery provides approximately 15 hours of continuous use (1000 hours on standby) on a full charge
  • Includes a 6.6" USB cable for charging and hi-res audio playback and hard carrying case 

TECHNICAL SPECS

  • Type: dynamic
  • Driver Diameter: 45 mm
  • Voice Coil: OFC-7N
  • Frequency Response: 5 - 45,000Hz
  • Sensitivity: 97dB / mW
  • Impedance: 38ohms
  • Battery: internal battery: 3.7V rechargeable lithium polymer battery
  • Battery Life: approx. 15 hours continuous use; charging time: approx. 5 hours; depending on environmental conditions
  • Weight: 10.9 oz without cable
  • Accessories Included: 6.6" USB charging cable and hard carrying case
  • Microphone Type: condenser
  • Microphone Sensitivity: -44dB
  • Microphone Frequency Response: 50 - 4,000Hz
  • Microphone Polar Pattern: omnidirectional

MANUALS

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

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