Headphones provide a number of benefits over speaker programs. Perhaps most significantly, they take away the acoustic results of the room, offering a extra constant and predictable listening expertise. As a end result, headphones proceed to encourage a thriving hobbyist group.
Denon has been making extremely regarded headphones for greater than 50 years, and the AH-D9200 is the corporate’s newest flagship mannequin. I reviewed it utilizing Denon’s PMA-60 two-channel built-in amplifier, a combo that makes lovely music collectively.
The AH-D9200 is a circumaural (over-ear), closed-back design handcrafted with premium supplies. For instance, the outer casing of every earcup is comprised of bamboo, which is alleged to have pure acoustic properties that vastly cut back undesirable resonances and promote a wealthy, heat tone. In addition, the memory-foam earpads are clad in engineered leather-based for max consolation over lengthy listening classes.
A diecast-aluminum hanger supplies sturdy assist and suppleness, permitting the earcups to maneuver freely round two axes for max consolation on a huge number of head dimensions and shapes. Comfort can also be enhanced by the scarf, which is wrapped in real leather-based. But regardless of using such high-end supplies, the AH-D9200 weighs solely 375 grams (13.23 ounces).
Each earcup homes a 50mm free-edge diaphragm comprised of nanofiber supplies chosen for rigidity and low mass. The diaphragm is mounted in a vibration-reducing engineered-resin baffle with a smooth encompass materials that makes it simpler to maneuver in response to the music sign with out flexing or distorting. This design is alleged to cancel out resonances in the diaphragm.
With a specified impedance of 24 ohms and a sensitivity of 105dB/mW, the frequency response extends from 5Hz to 56kHz with a most energy dealing with of 1800mW. The neodymium magnet boasts a large magnetic subject energy of greater than 1 tesla, which is alleged to drive the diaphragm with decrease distortion and decreased vibration. To put this in perspective, most medical MRI machines have a magnetic subject energy of 1.5 teslas, whereas Earth’s magnetic subject is in the vary of 25 to 65 microteslas on the floor.
The AH-D9200 comes with two removable OFC (oxygen-free copper) cables, each of which hook up with the 2 earcups with 3.5mm plugs. The copper wires in the 3-meter cable are silver-coated for increased conductivity, and the cable terminates with a 6.3mm (1/4-inch) plug for a residence stereo system. The wires in the 1.3m cable are usually not silver-coated, and it terminates with a 3.5mm plug for transportable gadgets. The shorter cable additionally contains a 1/4-inch adapter.
The included storage case and cleansing fabric assist hold the headphones protected and pristine. Unfortunately, it’s considerably flimsy cardboard. I might count on a extra substantial…