MXL Microphone MXL 604 User Manual

Marshall Electronics, Inc.  
1910 East Maple Ave. El Segundo, CA 90245  
Phone: (310) 333-0606 Fax: (310) 333-0688  
MXL 604  
Small Diaphragm  
Condenser Microphone  
Thank you for purchasing the MXL 604 Instrument Condenser microphone. With proper care, this mic will provide  
many years of satisfaction. For best results, please take a few moments to review this literature.  
General Characteristics  
This microphone has a twenty millimetre gold-sputtered diaphragm with a fixed cardioid pickup and an interchangeable omni-directional  
capsule. Condenser microphones tend to be very sensitive, readily revealing very subtle sonic details. They also tend to pick up ambient  
sounds more than dynamic microphones, which can lead to powerful feedback if you are not careful. We strongly advise experimentation  
with placement and isolation requirements with the gain initially set low to avoid equipment and hearing damage!  
Power Requirements  
IMPORTANT - This unit requires phantom power at 48 volts, +/- 4 volts. Each unit has been thoroughly checked before shipping,  
so if you do not hear sound, check that the phantom power on your mixer or separate power supply is switched on!  
Microphone Cables  
The microphone cable can have a profound effect on the sound of any microphone. Even the finest microphones will sound poor if  
the interconnect cable allows noise to enter, or causes distortion and loss of information. Use only the best microphone cable your  
budget will allow. We recommend using Mogami® brand cable.  
Care  
Dust and foreign material can degrade the performance of a microphone over time so always store the unit in its case. Remove  
fingerprints from the exterior with a clean soft cloth.  
Technical Data  
Type:  
Pressure gradient 22mm capsule  
6 micron gold-sputtered  
30 Hz - 20 kHz  
Polar Pattern  
Diaphragm:  
Frequency Range:  
Polar Pattern:  
Sensitivity:  
0
Cardioid/Omnidirectional  
15 mv/Pa  
270  
90  
Impedance:  
150 ohms  
Omni  
Cardioid  
Pre-Attenuation Switch: 0 dB, -10 dB  
High Pass Filter:  
Equivalent Noise:  
S/N Ratio:  
6 dB/octave @ 150 Hz  
180  
17 dB (A weighted IEC 268-4)  
77 dB (Ref. 1 Pa A weighted)  
Frequency Chart  
Max SPL for 0.5% THD: 137 dB  
Power Requirements: 48V phantom power (+/- 4V)  
Size:  
86 in x 5.2 in/22mm x 133mm  
0.3 lbs/136g  
Weight:  
Metal Finish:  
Nickel plated  
Warranty  
Marshall microphones are guaranteed against defects in material and workmanship for Three years from date of purchase. Should you encounter any problem with this unit,  
promptly contact the company you purchased it from for assistance. The original dated sales receipt will be necessary for any warranty claim. Do not send any unit directly  
to us without prior authorization from our service department! Warranty coverage is limited to repair or replacement (at our option) of the microphone, and does not cover  
incidental damages due to use of this unit, nor damage caused by accidental misuse of this product.  
 

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