Speco Technologies MCBM-300 User Manual

Congratulations on your purchase of Speco
Technologies’ MCBM-300 Boundary Microphone!

Speco Technologies has leveraged over 40 years of audio industry experience to bring you the highest level of quality
performing microphones in the industry. With its flat housing and stealth look, the Speco Technologies’ MCBM-300
boundary microphone is specially designed to be seamlessly incorporated in different conference projects and a wide
range of theater stage applications.The microphone applies a standard XLR connector and is powered by 9V-52V of
phantom power in order to match many types of audio equipment.

Specifications:

Element: Back Electret Condenser
Polar Pattern: Uni-directional
Frequency Response:60Hz-16kHz
Sensitivity: -36dB±3dB (0dB=1V/Pa at 1kHz)
Output Impedance: 250 ohms ±30% (at 1kHz)
Self Noise: 26dB A
Max. Input SPL: 130dB (at 1kHz°‹1% T.H.D)
S/N Ratio: 74dB
Operating Voltage: G9V-52V DC Phantom

Frequency response graph:

Connecting and disconnecting the microphone cable:

1. Insert the XLR connector into the microphone. If necessary, rotate the connector to align the key on the connector and the groove in the
microphone. Push the connector into the microphone until it clicks.

2. To disconnect the cable and microphone, grasp the connector while depressing the tab. Pull the connector away from the microphone.

Usage:

1. If the head of the microphone is covered by hand or brought close to a speaker, a howling sound may be generated. To prevent this, first
decrease the volume, then place the microphone so that it is not pointed at the speaker. In addition, make sure that there is sufficient
distance between the microphone and speaker.

2. Due to the high sensitivity of the cartridge, do not drop or jolt it suddenly.

3. To maintain the sensitivity and quality of sound reproduction, avoid exposing the boundary MIC to moisture and extreme temperatures.

4. The MCBM-300 offers a mute button for temporary silencing, as well as a LED “on” light to designate usage.

Warranty:

Speco Technologies offers a limited 2 year warranty on our microphones. Please consult enclosed warranty card.

200 New Highway Amityville, New York 11701 • Outside Metro NY: 1-800-645-5516

631-957-8700 • www.specotech.com