How many times intense is 80 dB sound than a 20 dB sound? View Solution How many times more intense is a 90-dB sound than a 40-dB sound? View Solution A brief exposure to 150 dB sound may View Solution A sound increases its decibel reading from20to40dB. This means that the intensit...
品牌 MeyerSound 箱体材质 金属 遥控器 有 功能 收音功能 失真率 0.01% 信噪比 110dB 阻抗 7Ω 额定电压 220V 额定功率 421W 额定频率 37Hz~2000Hz 颜色 黑色 重量 11kg 可售卖地 全国 型号 Acheron80 工作频率范围37赫兹 - 18千赫 注意:推荐工作频率范围。响应取决于负载 ...
Sound Blaster X4外置声卡现已上市，定价219美元，约合人民币1400元。——X3只有120美元。
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Forge your legacy with CORSAIR HS80 MAX multiplatform gaming headset. Enjoy true audio via high-fidelity 2.4GHz wireless and Bluetooth®, with immersive Dolby Atmos® and a high-performing omni-directional microphone.
(或音压位准，sound pressurelevel,简写为SPL)，使用的单位为分贝(deci-Bell, dB)，此单位是 纪念电话的发明人贝尔(Bell)，原先定义为β=log(I/I0),其中I0是人耳最小可感觉的声音强度(soundintensity)，其值为10-12W/m 2，但使用此方式定义，则可听的最大声音为14B，此范围太狭窄，使用上不...
Specifications: Product Name: Metal Buzzer Mounting Hole Diameter: 16mm/19mm/22mm Light Type: Intermittent Flashing Wiring Mode: Screw foot/Welding Foot Light Color: Red LED Shell Material: Stainless steel Protection Grade: IK09 Sound Intensity: 80dB Features: |Quiz Buzzer System|Car Clicker| **...
从这三方面可以看出,在音响链里一直沦为配角的音源主机,即将被DSD车载数字播放器替代,成为业界主角。但这种车载级DSD级高清数播,并不如同便携式的数播那样,在汽车音响里如雨后春笋般冒出,DSD硬解、符合车载应用的兼容性、发烧音品等等技术问题,在业界也只有极少数品牌可以做到。这次360汽车网测试的GYPSY Sound吉普赛之...
, Accurate phase, strong penetrating power, excellent sense of space and sound texture, greatly improving the sound experience of the scene. In terms of vocals, it shows the details of the voice so that the singer can sing easily; while the vocals in the middle and high pitches are clean,...
IP44 Ship Ex-Proof 24V 80dB Batteryless Telephone, Find Details and Price about Batteryless Telephone Sound Power Telephone from IP44 Ship Ex-Proof 24V 80dB Batteryless Telephone - Chongqing Jinfa Industrial Equipment Sales Co., Ltd.