Crown Audio by Harman

Search:     Advanced search

Should the CM-311AE distort?

How loud would one have to sing for a CM-311AE to distort? I am getting a lot of comments from some of the guys who do production for my band that I sound distorted. I am a singing drummer and tend to belt it out. I am going with the CM-311AE instructions and keeping the pop screen up to my lips. Should I back off the mic?
Mark Boucher

Reply: It's really hard to make the CM-311AE distort unless it is not getting enough voltage from the transmitter. The maximum SPL that the CM-311AE can handle at 1 kHz is 140 dB SPL with 3V DC, and 148 dB SPL with 9V DC. A screaming voice can reach 140 dB SPL with the mic touching the lips.

Something to check: The transmitter input can be overloaded by a hot mic signal. Inside most transmitters is a gain potentiometer . Using a small screwdriver, turn down this pot all the way and see whether the distortion stops. Also make sure that the receiver level is set so that the receiver is not distorting (clipping ), and check the PA mixer's input trim or gain control to make sure that the mixer input (fed by the receiver) is not clipping.

If all else fails, sing a little quieter or move the mic about 1/4 inch or 1/2 inch farther from the mouth

Others in this Category
document How do I prevent turn-on pops with the CM-311A?
document What are the pop filters for the CM-311A?
document How do I reduce breath pops with the CM-311AE?
document How do I make a CM-311AE or CM-312AE hard wired?
document How do I fit the CM-311A or CM-311AE to my head?
document How do I convert a CM-311A to wireless?
document Where else can I attach the CM-311A beltpack?
document How do I wire a CM-311AE or CM-312AE to a Sennheiser Evolution transmitter?
document How do I reduce drum pickup with the CM-311A?
document How do I control boom bounce in the CM-311A?
document Should I run my CM-311A off phantom power, or use the battery in the beltpack?
document What's the difference between the CM-311AE and the CM-312AE?
document How can I protect the mic capsule in my CM-312A?
document How do I wire my CM-311AE or CM-312AE to a Mipro transmitter?
document Help choosing a headset microphone
document Compatible wireless systems for GLM-100E, CM-311AE or CM-312AE
document How do I prevent breath pops with the CM-311A?