製品承認書
Specification For
Approval
專業平板耳机
機種：
Professional Planar Headphones
Model No. : KP-2000
品名：
Part Name
1.製品概要
PRODUCT DESCR
1-1名稱
Category
1-2品號
PART NO
1-3耳機入力
Input power for test
1-4 阻抗
IMPEDANCE
1-5外観
APPEARANCE
1-6重量
Weight
2. 電氣特器
Electronic Tests
2-1動作
OPERATION
2-2 聲音異常
Sound distortions
2-3 失真 THD
2-4音壓
SOUND PRESSUER LEVEL
2-5 容許功率
POWER HANDLING CAPACITY
2-6 左右靈敏度差
LEVEL DIFFERENCE
OF L • R
2-7相位
POLARITY
專業平板耳机
Professional Planar Headphones
12KP2000YOT010
1mW
53⑨+15%
根據外觀圖
Depend on Appearance Drawing
約=450g（不含Cable & Packing）
在使用狀態中施加 1m的信號後音量、音質、雜音其它所有動作無異常一事。
Test condition generating a Im signal into headphones, to test Its sound volume, sound quality and if any noises occurred.
輸入掃描頻率：15Hz~40KHlz，入力2ml，音質不可有異常
Input a 15Hz~40KHz frequency with 2mW power, scanning the headphones to see if any Buzz sound, Rattling sound occurred.
<0. 2% (at 1KHz ImW)
101dB t 3dB at Imlf *使用人工耳测定
100mW
Within 3dB (at 1KHz ImW)
左右聲道相位相同
L and R channel drivers shall drive with same polarity

————————————————————————————-
Specification
For
專業耳機
Professional Headphones
Approval
機種：
Model No. : YTH-880 Classic
品名：
Part Name
1.製品概要
PRODUCT DESCR
1-1名稱
Category
1-2品號
PART NO
1-3耳機入力
Input power for test
1-4阻抗
IMPEDANCE
1-5外観
APPEARANCE
1-6重量
Weight
2.竜糸特器
Electronic Tests
2-1動作
OPERATION
2-2聲音異常
Sound distortions
2-3 失真 THD
2-4音壓
SOUND PRESSUER LEVEL
2-5 容許功率
POWER HANDLING CAPACITY
2-6 左右？敏度差
LEVEL DIFFERENCE
OF L・R
2-7相位
POLARITY
專業開放動圈式耳機
Professional Open Dynamic Headphones
12YTH880Y0T017
1mWY
643+15%
根據外親圖
Depend on Appearance Drawing
約＝290g（不舎Cable & Packing）
2-8周波数特性
FREQUENCY RESPONSE
在使用狀態中施加1m的信號後音量、音質、雜音其它所有動作無異常一事。
Test condition generating a lml signal into headphones, to test Its sound volume, sound quality and if any noises occurred.
输入搭描頻率：20Hz~40KHz，入力2ml，音質不可有異常
Input a 20Hz~40KHz frequency with 2ml power, scanning the headphones to see if any Buzz sound, Rattling sound occurred.
<0. 2% (at 1KHz 1mW)
96dB + 3dB at 1ml
1000mlY
3dB 以內
(at 1KHz ImW)
Within 3dB (at 1KHz ImV)
左右聲道相位相同
L and R channel drivers shall drive with same polarity
見3-0周波數特性圖
測試方法
Test Method
Refer to 3-0 Frequency respond curve
接仿真耳（Artificial Ear（1EC-318）

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