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Schoeps話筒 德國Schoeps話筒麥克風 CCM 21 話筒 Schoeps麥克風 CCM21
CCM 21 緊密型話筒
寬心形話筒，在整個頻率范圍內具有十分一致的方向性
悅耳的聲效，常常被形容為“溫暖聲”
通常用作點話筒，或所有立體聲拾音的主話筒對
所有CCM話筒類型的技術指標：
供電： 12V ± 1V 或 48V ± 4V 幻像供電
電流損耗（自動切換）： P12：8mA，P48：4mA
源阻抗： 90 Ω
推薦最小負載阻抗： 600 Ω
低切頻率（－3dB）： 20Hz
U版本長度： 46mm－58mm，根據型號決定
L版本長度： 46mm－58mm不帶連接器
直徑： 20mm
不包括線纜的重量： U版本：33g，L版本：43g
表面拋光： 磨砂灰（g）或鎳（ni）
線纜（K 5 LU）標準長度： 5m
如果需要其它長度可單獨定制，但便攜盒所能容納的線纜最大長度為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 accurately. 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 uniform 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.
