Headphone Measurements:

Denon AH-D7000

Frequency Response

Top - Compensated and Averaged Bottom - Raw Data for Five Headphone Positions 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -Frequency 10000 100000
0 -5 Reduction in dB -10 -15 -20 -25 -30 -35 -40 -45 -100

Isolation

Attenuation of External Sound vs. Frequency

Amplitude (dB)

1000 Frequency

100000

Electrical Impedance and Phase
Measured with 600 Ohm output impedance. Impedance in Ohms Frequency 10000 Impedance Phase -20 -40 -Phase in Degrees 20
0.05 0.04 0.03 0.02 Volts 0.01 0

30 Hz Square Wave

-0.01 -0.02 -0.03 -0.04 -0.05 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10

Time in Seconds

%THD+noise @ 90dB and 100dB

300 Hz Square Wave

0.04 0.03

10 %THD+noise

0.02 0.01
10 Frequency 10000 100000

-0.01 -0.02 -0.03

-0.04 0.000

0.008 Right

0.009 Left

Left 90dB

Right 90dB

Left 100dB

Right 100dB

Impulse Response

Volts RMS required to reach 90dB SPL: Impedance @ 1kHz: Power Needed for 90d BSPL Broadband Isolation in dB (100Hz to 10kHz):

0.0.11 -5

Vrms Ohms mW dBr

-0.03 0.0000

0.0003

0.0006

0.0009

0.0012

0.0015

0.0018

0.0021

0.0024

0.0027

0.0030

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New model information

AH-D7000

Over-Ear Headphones

State-of-the-art technology paired with old world style craftsmanship combine to provide the ultimate headphone listening experience.
Slip on Denon's AH-D7000 reference headphones and instantly transport yourself to the world's finest concert halls and recording studios. Blending old world style craftsmanship with the latest transducer technology, the AH-D7000 features real mahogany wood housings that are custom-crafted for superior acoustical performance. The elegant and comfortable over-the-ear design assures hours of listening comfort, aided by the lightweight Duralumin headband, along with soft leather ear pads and headband cover. Denon's exclusive Acoustic Optimizer technology equalizes the sound pressure in front of and behind the Microfiber driver diaphragm for the most neutral and uncolored tonal balance. The elegant mahogany housings feature piano grade satin sheen finish with magnesium fittings.
Features Stronger magnetic circuit for the driver unit
The AH-D7000s stronger magnetic power provides robust drive capable of producing a dynamic, high-resolution sound. (11.4% boost in magnetic power: Denon comparison)
Piano finished Real Wood Mahogany Housing, superior acoustic effects
The same sort of high-grade natural mahogany with superior acoustic characteristics that is used to make guitars has been used for the AH-D7000's housing. To ensure the highest-quality sound, Denon engineers have analyzed a full range of aspects from the shape of the housing and its thickness to the final finishing used on pianos.
Microfiber diaphragm, to reproduce delicate nuances of sound Acoustic Optimiser, to achieve ideal acoustic characteristics Cloth-wrapped cable with high-purity 7N-OFC (99.99999% Oxygen Free Copper) wire and equal lengths for left and right channels, to optimize sound quality Cable with tangle-free, twisting-resistant Elastomer sheath
The cable covering is made of Elastomer to guard against touch noise and other types of sound distortion caused by vibration. This tangle-free material also makes the cable easy to use.
Slider Duralumin Frame Magnesium Driver Micro Fiber Diaphragm Free Edge Neodymium Magnet Housing Mahogany Solid Wood
6.3mm (0.25 inch) aluminum plug matching Denons high-end models Gold plated connector Magnesium frame and Duralumin slider construction to achieve light weight and natural feel whilst wearing
Nickel Logo Badge Cable 7N (99.99999% purity) OFC Elastomer Sheath
Leather ear pads and headband pad Luxurious storage box included

Piano Finish

Ear Pad Soft Leather Special Urethane
6.3 mm Plug Aluminum Cover

Main Specifications

Type Drive units Input impedance Sensitivity Maximum input Frequency response Weight Cable length Plug Dynamic type 50 mm (1.97 inch) , Neodymium magnet 25 ohms 108 dB/mW 1,800 mW 5 - 45,000 Hz 370 g (0.81 lbs) , not including cable 3.0 m (9.84 ft) , 7N-OFC cable 6.3 mm (0.25 inch) , gold-plated stereo plug

*Design and specifications are subject to change without notice.
Denon Electronics (USA), LLC.
100 Corporate Drive, Mahwah, New Jersey 07430 USA TEL: 201-762-6500 usa.denon.com

Denon Canada Inc.

505 Apple Creek Blvd, Unit 5, Markham, Ontario, Canada L3R 5B1 TEL: 905-475-4085 ca.denon.com

Denon Brand Company

D&M Building, 2-1 Nisshin-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-8569, Japan www.denon.com

17500708 A