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Schoeps话筒 德国Schoeps话筒麦克风 CCM 21 话筒  Schoeps麦克风 CCM21

CCM 21 紧密型话筒

宽心形话筒，在整个频率范围内具有十分一致的方向性

悦耳的声效，常常被形容为“温暖声”

通常用作点话筒，或所有立体声拾音的主话筒对

所有CCM话筒类型的技术指标：

供电： 12V ± 1V 或 48V ± 4V 幻像供电

电流损耗（自动切换）： P12：8mA，P48：4mA

源阻抗： 90 Ω

推荐最小负载阻抗： 600 Ω

低切频率（－3dB）： 20Hz

U版本长度： 46mm－58mm，根据型号决定

L版本长度： 46mm－58mm不带连接器

直径： 20mm

不包括线缆的重量： U版本：33g，L版本：43g

表面抛光： 磨砂灰（g）或镍（ni）

线缆（K 5 LU）标准长度： 5m

如果需要其它长度可单独定制，但便携盒所能容纳的线缆最大长度为10m。

CCM 21 COMPACT MICROPHONE

PROPERTIES

wide cardioid with especially consistent directionality throughout its frequency range

pleasant sound image, often described as “warm”

often preferred for use as a spot microphone, or as the main pair for overall stereo pickup

DESCRIPTION

This type of microphone has a directional pattern between omni and cardioid. The basic idea in designing the CCM 21 was to combine the advantages of the cardioid with those of the omni. This results in a pickup pattern which blends the two sets of characteristics in a useful manner. It has fuller and more extended low frequency response than a cardioid, with less proximity effect, while attenuating side- and rear-incident sound less than a cardioid.

The polar diagram shows the directivity of the CCM 21 to be only slightly dependent on frequency. This contrasts with omnidirectional capsules, whose directivity increases with rising frequency, and with cardioids (at least smaller ones), which tend to accentuate high frequencies that arrive at oblique angles. The CCM 21’s orientation is less critical than with a cardioid, since direct sound arriving on axis and reverberant or other sounds off axis are both reproduced accuraby. This lack of coloration in the off-axis pickup produces a “warm” and natural sonic impression.

 PRACTICE

When used as a spot microphone, the CCM 21 must be placed somewhat closer to the sound source than a cardioid would be, due to its lower directivity. Its unib off-axis response helps to blend nearby instruments seamlessly into the overall mix. For wide pickups where some directivity of the microphone is advantageous, as in acoustically difficult rooms where the bass would be too strong when using omnis, the CCM 21 can be especially helpful.

The low directivity of this capsule type prevents it from generating large enough level differences for X/Y use, though M/S and near-coincident spacings are often successful.

Together with the cardioid and supercardioid, this is one of the most preferred types among our capsules.