CARVIN CM30D Operating Manual Download Page 1

CARVIN ENGINEERING DATA

CM30D Drum Mics

OPERATING MANUAL

-25

-20

-15

-10

-5

0dB

30°

60°

90°

120°

150°

180°

150°

120°

90°

60°

30°

200Hz

1,000 Hz

6,000Hz

Congratulations on purchasing Carvin’s 

CM30D

drum and instrument

microphones.  The 

CM30D

mic kit is capable of handling high sound pres-

sure levels without distortion making them ideal for live or recording close-
miking of all types of drums and percussion instruments.  They are also
accurate for use in sonic reproduction of brass, woodwind and other
instruments producing high sound fields.  

FEATURES

• Cardioid pattern allows close miking to minimize bleed-through from other

drums or stage instruments.

• Neodymium element delivers maximum output.  

• Up to 140dB SPL handling capacity for distortion free reproduction of

even the loudest drums.  

• Transformerless moving-coil dynamic design for enhanced bass and fast

transient response.  

• All metal construction for maximum reliability.

• Special rubber shockmount mic holder minimizes floor vibration pick-up.

• Incredibly small, low-profile design for minimum visibility and close 

miking placement around the drum kit.

• Gold plated XLR connectors for maximum conductivity.

• Full frequency response for sonic punch with exceptional clarity.

SPECIFICATIONS

Type

Dynamic, neodymium cartridge

Directional Pattern

Unidirectional Cardioid

Frequency Response
Snare-Tom Mic 

CMST1:

70Hz to 15kHz

Bass Drum Mic

CMBD1:

30Hz to 15kHz

Sensitivity (@1kHz, 74dB SPL)
Snare-Tom Mic 

CMST1:

-73dB, ± 3dB

Bass Drum Mic

CMBD1:

-72dB, ± 3dB

Impedance
Snare-Tom Mic 

CMST1:

600

Bass Drum Mic

CMBD1:

250

Maximum SPL (@1%THD)
Snare-Tom Mic

CMST1:

>130dB

Bass Drum Mic

CMBD1:

>140dB

Dimensions & Weight
Snare-Tom Mic

CMST1:

1.65” x 4.5” Wt 8.5oz

Bass Drum Mic

CMBD1:

2.1” x 4.7” Wt 10.6oz

Material

Holder Mount: rubber, plastic with brass insert.
Ballscreen: steel mesh
Gold-plated XLR contacts

GETTING STARTED QUICKLY 

If you are like most people, you probably want to get started right away.

Great!  In order to get started, you will need your new 

CM30D

mics and

XLR Mic Cables

.  You will also need a microphone stand to hold your

CM30D

mics.  Carvin recommends our 

MS

line of stands (

MS11, MS13,

MS15

).  Other equipment needed is your mixer (sound system or record-

ing system).

1. With the mixer power off, plug the 

CM30D

mics into your mixer using bal-

anced 

XLR

cables.

2. Please see the other side of this manual for suggested 

Mic Placement

.  Each

mic can be mounted on a mic stand with the built-in mount.  Depending on
the threading of your mic stand, you many need to remove the inner
threaded adapter.  Use a large flat screwdriver or coin to assist you.

3. Once the mics have been placed into position, you can turn the mixer ON

(make sure all volume, gain knobs, or faders on your mixer are turned OFF).

4. Bring the channel volume or fader up to 0 dB. 

5. Play each drum individually and turn the mixer’s gain up on each channel

and stop just before the signal peaks.  This should be done at the loudest
volume you will perform at. Check for transients that can cause the signal
to peak and adjust your gain up or down as needed. It might be a good idea
to do a second signal check while playing the entire kit.  Drummers can
tend to play louder during a song with other band members playing along.

6. With the signal levels set, adjust any EQ that might be needed.  

7. You are now ready to use your new 

CM30D

mics.

CHECK LIST OF PARTS 

Included with your 

CM30D

 is:

• One

CMBD1 

Bass drum mic with extended low-end response.

• Two 

CMST1 

Snare-Tom mics for close-miking snares, toms, 

percussion, brass and woodwinds.

• One molded carry case with internal padding

TYPICAL POLAR PATTERNS

Cardioid — rotationally symmetrical about microphone axis, uniform with frequency

12340 World Trade Drive, San Diego, CA  92128

(800) 854-2235

www.carvin.com

CMBD1

CMST1

CMST1

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