By, smartwatches 02/10/2022

Keyaki + titanium housing earphones with improved midrange with two "Tornado Equalizers" – AV Watch

 Otcharaku is a new earphone product that uses zelkova as a core material. Dual)” will be sold on a trial basis. The price is an open price, and the price for Otcharaku Sound Customize is 52,500 yen, the same as the existing "Donguri-Keyaki TiPlus". A small quantity will be sold at the Otocharaku booth at the "Portable Audio Study Group (Potaken)" to be held at Nakano Sunplaza in Tokyo on February 18, and after that, trial sales will continue at Otocharaku stores.

Donguri-Keyaki Ti Plus Dual (KEYAKI Ti Plus Dual)

Equipped with the company's original two tornado equalizers for the first time, suppressing the resonance around 6 kHz caused by canal-type (earplug-type) earphones blocking the ear canal. This is a model that suppresses the sound pressure in the 3kHz to 12kHz band, realizes a more audible midrange, and realizes smooth frequency characteristics from the low range to the ultra-high range. The tornado equalizer uses a large diameter type that supports high resolution.

Internal structure

 Except for the number of tornado equalizers, it is the same as the conventional model "Donguri-Keyaki TiPlus", and the element is equipped with an acoustic turbo circuit. "Smooth reproduction from super low range to super high range while taking advantage of the single element".

 The driver unit is a 10mm dynamic type that uses a 010e005 type element, and by adopting a liquid crystal polymer protector & frame, it is possible to reproduce a clear mid-high range that suppresses unnecessary vibrations.

 Pure titanium is used for the front part of the housing, and zelkova core material is used for the rear, which is said to have the fastest speed of sound transmission among woods and has a beautiful sound. Handmade in Hida Takayama by Oak Village craftsmen.

Titanium and zelkova core materials are used

 The frequency response is 5Hz to 40kHz and supports high resolution. The output sound pressure level is 106dB/mW, and the maximum input is 200mW. Impedance is 18Ω.

 The plug is a 3-pole stereo mini, but the cable from the plug to the branch uses a 4-core configuration with independent left and right grounds. Separation is said to have been enhanced by separating the left and right channel grounds. Weight is about 19g. A wooden storage box and an L-shaped connection cord are included, and the included earpieces include SpinFit in addition to the conventional Comply.

Includes wooden storage box