美国EV RE20 N/D专业悬挂式主持人话筒

EV RE20 动圈式大振膜超心型广播级有线话筒

Eiectro Voice 公司出品的RE20单一指向专业动圈话筒是专门为录音、广播和扩音设计的,它具有极广的频率响应和优秀的瞬态反应,这使其能与最好的心型指向电容话筒相婫美,操作简单的bass tlit down开关为远距离使用或需要低音滚降的场合提供了极大方便,心型指向模式能最大程度地减少回馈并能有效防止外界信号干扰,拾音清晰细腻。它还带有一体化的防爆破音和防风过滤装置,这令使用者几乎贴着话筒进行表演而无需担心咝咝声,此外RE20结构坚固,经久耐用,多年来一直是专业广播、录音始终如一的选择。

近距离也能有好的效果、心型指向、45—18KHz的频响、阻抗，低阻平衡150Ω、强风噪声滤波、附安装配件.

性能特点:

广播主持和录音室旁白的选择

频率响应极键无须电源并能避免超载

具有大振膜和简洁的铝制线圈并配有铁盒,可有效防磁

心型指向模式能最大程度地减少回馈并能有效防止外界信号干扰,拾音清晰细腻

双通道,continuously Variable-D? with　最小的近邻效应

非常适合乐器录音,特别是地鼓和原声吉他

技术指标:

话筒类型: 动圈话筒

指向性: 心型

频率响应: 45Hz-18KHz

输出电平: (1000赫兹条件下)

开路电平: 1.5mv.

输出阻抗: 150欧姆

相性: 对振动膜施加电压时,2号插脚相对于3号插脚为正电压

Power level: -57dB

Hum plck up level: -130dB

话筒连接: 三脚专用音响插头(XLR阳性插头给予最大传导性)

随机附件：81715话筒架适配器

选购附件：309型防震话筒架适配器，用于落地架或录音吊杆

The Electro-Voice RE20 is a professional-quality dynamic cardioid microphone created specially for recording, broadcast and sound-reinforcement applications requiring essentially flat response over a very wide frequency range. The wide frequency response, coupled with excellent transient response, make the RE20 easily comparable to the finest condenser cardioid microphones. It is designe for critical recording and broadcasting and has a smooth & accurate peak-free response, even up close, which makes it ideal in both the studio and in voice-over announcing booths.

The RE20’s bass roll-off switch and EV’s Variable-D technology ensures true and accurate response across all frequencies without the up-close boominess associated with proximity effect. It gives the same response at varying distances.

Variable-D designed microphones, like the RE20, can be used very close to other sound sources with no loss in clarity or definition. This makes them the preferred choice for tight vocals and challenging instruments such as brass.

A true cardioid microphone, the RE20 offers greatest rejection at 180o off axis - directly to the rear of the microphone. Pattern control is so consistent that the frequency response is nearly independent of angular location of the sound source, creating virtually no off-axis coloration, yet providing greatest possible rejection of unwanted sounds.

An integral blast and wind filter covers each acoustic opening on the RE20. In recording sessions or on stage, singers can “close talk” the microphone, singing with their lips almost touching the grille screen with no worry of “P-pops” or excessive sibilance. Part of the filter also shock mounts the internal microphone element, reducing the transfer of vibrations from external sources.

The exceptional performance of the RE20 is achieved by using a large Acoustalloy diaphragm in combination with an exceptionally low-mass aluminum voice coil. Using this diaphragm assembly, the RE20 is capable of reproducing extremely high sound pressure levels with no fear of the overload and distortion often experienced with phantompowered condensers.

The RE20 will continue to function flawlessly in high humidity and elevated temperatures that would seriously degrade competitive condenser microphones.

A massive steel housing and effective hum-bucking coil assure the RE20’s resistance to magnetically induced hum and noise. This means the RE20 can be used successfully in situations where other microphones would experience unacceptable levels of hum and buzz. By exploiting the strength of its steel housing and employing a mechanical nesting concept, EV designers have created an exceptionally rugged microphone with superior handling noise rejection ideally suited for professional uses.

The bass-boosting proximity effect common to most directional microphones when used close to the sound source, is eliminated in the RE20. This is accomplished via the application of the EVexclusive Variable-D? technology. By controlling the effect of microphone proximity, the RE20 can be located very close to sound sources without a loss in clarity or definition making the RE20 ideal for tight vocals and challenging instruments. It can be used inside bass drums, on acoustic guitars, and is found in voice booths and broadcasting studios everywhere.

The microphone is a cardioid type with an integral blast filter protecting all acoustic openings. The blast filter serves as a shock mount for the internal microphone element. The microphone has a wide-range uniform frequency response from 45-18,000 Hz. An integral passive network is provided so that when the filter switch is in the “on” position, low-frequency response shall tilt down 4.5 dB from 400-100 Hz. With switch in “off” position, microphone is essentially “flat” from 80-6,000 Hz, with a broad 2.5 dB rise in response from 6,000-14,000 Hz, and nominally down3 dB at 18,000 Hz.

Response below 80 Hz is nominally down 3 dB at 45 Hz. Output level is -57 dB (0 dB = 1 mW/Pascal). Nominal impedance of 150 ohms. Response at any angular position away from the major axis is essentially similar to the response on the major axis, but attenuated uniformly at all frequencies by an amount appropriate to that angular position.

Attenuation at frequencies from 45-10,000 Hz (refer to major axis signal value) exceeds 15 dB at 180° from major axis in any plane. Attenuation above 10,000 Hz exceeds 13 dB. Polar characteristics are sufficiently uniform in all planes so that it is, effectively, a cardioid of revolution. This microphone has a shield to prevent dust and iron particles from reaching the diaphragm. The case is made of steel. The microphone has a diameter of 54.4 mm (2.14 in.), a body diameter of 49.2 mm (1.94 in.) and a length of 216.7 mm (8.53 in.). A stand adapter is supplied.