DENON Over-ear headphones AH-GC25NC White
Main features
40mm carbon fiber free edge driver
For the first time, noise-free headphones have been equipped with a free-edge driver that has been used only for advanced models, such as the flagship AH-D9200. A free edge structure that supports the outer periphery of the diaphragm with a roll edge in the same way as a speaker enables a uniform piston motion over the entire diaphragm, realizing extremely low distortion and low volume rich sound.
High res audio compatible
The playback frequency of the AH-GC25NC covers a wide band from 5Hz to 50kHz. It also accurately reproduces super-high frequency information exceeding the human audible band recorded in high-resolution audio sources. In addition, careful sound tuning not only measures the performance in terms of measurement, but also the performance in terms of audibility when playing music.
3 mode digital noise canceling function
The noise canceling function has been renewed and enhanced from the previous model AH-GC20, and it has a digital noise canceling function in three modes that can be selected according to the environment. The mode can be selected from "Airplane", "City", and "Office", and you can get the best noise cancellation effect according to the surrounding situation. In addition, a feedback and feedforward system with sound collecting microphones inside and outside the housing is adopted. It cancels the noise with high precision by the opposite phase signal generated from both the ear and surrounding noise, and delivers only clear music to the ear.
Acoustic optimizer
The port provided in the housing adjusts the sound pressure balance before and after the driver, and is equipped with an acoustic optimizer that optimizes the piston motion of the diaphragm.
Ambient sound mixing function
Ambient sound mixing function that is enabled when you tap the center of the right housing twice. The surrounding sounds captured by this unit's microphone can be mixed with music and played back, so you can listen to announcements from stations and airports without removing the unit.
Approximately 30 hours of music playback
It can be charged up to 100% in about 2 hours from a state without battery power. The noise canceling function can be used for up to about 40 hours * 30 hours of continuous use. In addition, it is equipped with an auto standby function that automatically turns off the power when it is left stationary on a desk for 10 minutes. (* Change on August 2, 2019)
* The auto standby function may not work in environments where vibrations occur, such as when traveling on an airplane, train, or car.
Surprisingly ear-friendly and durable ear pads
The ear pads are made of artificial leather that is twice as durable as general artificial leather. The ideal shape that fits evenly around the ear and the shape memory foam that optimizes the lateral pressure realizes a feeling of wearing and airtightness that wraps around the ear without stress.
Aluminum die-cast hanger that draws an elegant curve
The hanger uses lightweight and robust aluminum die-cast. Not only does it contribute to acoustic performance, it also enhances the satisfaction of having a beautiful shine that is carefully finished one by one. The scale and clear click adjuster make it easy to adjust to the optimal size.
Straight cable and cable with remote control microphone
The attached cable is about 1.3m just right for outdoor use. It comes with two types of cables: a straight cable with the highest priority on sound quality and a cable with a remote control microphone that allows you to perform operations such as play / pause and talk at hand.
Siri / Google Assistant calling function
During playback, you can call Siri on iPhone or Google Assistant on smartphone by pressing and holding the button on the remote control for more than 1 second.
Main specifications-AH-GC25NC
Format Dynamic type
Driver 40mm, free edge driver
Input impedance 16Ω
Reproduction frequency band 5-50,000 Hz
Sound pressure sensitivity 98dB / mW
Continuous playback time Approx. 40 hours * 30 hours (noise canceling function ON) (* August 2, 2019 change)
Charging time about 2 hours
Weight 287g
Accessories Easy start guide, audio cable (about 1.3m), audio cable with remote control microphone (about 1.3m), USB cable (micro B connector, about 1.2m), carrying case, accessory pouch