Crown Audio LM-300AL, LM-LM301A DdLM-300A, All Models Operating Instructions, Warranty, Service

Fig. 2

Polar Response

All Models: Operating Instructions

1.Plug the electronics interface into a 3-pin XLR-type connector with its cable routed to the audio mixer.

2.At the mixer, plug the mic cable from the lectern into an input with 12-48 volt phantom power. Make sure the phantom power switch on the mic is on.

3.If phantom power is not available on your audio mixer, connect the mic cable from the microphone to an external phantom power sup- ply such as a Crown PH-1A. Connect another mic cable between the phantom power supply output and a mixer mic input.

4.If mechanical noise or breath pops are exces- sive, use a pen or pencil to set the flat/low-cut switch in the electronics interface to “cut”

(). Push the switch up to enable low cut.

5.Do not lubricate the gooseneck.

Architects’ and Engineers’ Specifications

The microphone shall be the Crown model LM-300A, LM-300AL, or LM-301A. The micro- phone shall be a supercardioid electret-con- denser type with dual silent goosenecks.

Fig. 3 Dimensions

3"

(5.8 cm)

1.446"

(3.7 cm)

4.75"

(12.1 cm)

3"	Total Length 17.25"
	(43.8 cm)
(5.8 cm)

ddLM-300A

4.86"

(12.3 cm)

Frequency response shall be uniform from

80 Hz to 15,000 Hz. The microphone shall be powered from 12 to 48 volts phantom power- ing. Open-circuit sensitivity shall be 6 mV/Pa. Impedance shall be 150 ohms balanced.

Maximum SPL capability shall be 120 dB SPL at 3% THD. Equivalent noise shall be 28 dBA typi- cal (0 dB =.0002 dyne/cm2).

In the LM-300A and LM-300AL, electronics and connector for the microphone shall be in a rug- ged steel cylindrical housing at the end of the gooseneck. A flat/low-cut switch shall be built into the electronics housing.

In the LM-301A, electronics and connector for the microphone shall be in a separate rugged steel cylindrical housing. A flat/low-cut switch shall be built into the electronics housing. A TA3F connector at the end of the mic cable shall connect to the electronics. The microphone shall have a built-in 5/8-inch (15.88-mm)-27 threaded collar that screws onto a mic stand, mic boom or Atlas AD-12 male flange. The cable can be routed either outside or inside the mounting device.

The Crown Model LM-300A, LM-300AL, or LM- 301A microphone is specified.

3"

(5.8 cm)

1.446"

(3.7 cm)

9.68"

(24.6 cm)

Total Length 22"

3"(55.9 cm) (5.8 cm)

LM-300AL

4.86"

(12.3 cm)

LM-301A

LM-300A

LM-300AL

LM-301A

Warranty

Crown professional microphones are guaran- teed against malfunction for a period of three years from date of original purchase. See enclosed warranty sheet for additional informa- tion.

Service

If the microphone does not function properly, replace or repair mic cables and connectors, check the power supply.

If you determine the microphone product(s) is defective, return the complete product (mic and interface) in its original packaging to Crown

Factory Service, 1718 W. Mishawaka Road, Elkhart, IN 46517-9439.

A Service Return Authorization (SRA) is re- quired for product being returned for service. An SRA can be completed on line at: www.crownaudio.com/support/factserv.htm.

The mic and electronics are a matched pair. Do not separate them. For service send them both in.

For further assistance or technical support call 800-342-6939.

Fig. 4

WS-9 Foam Pop Filter

Crown International, Inc.

1718 W. Mishawaka Rd.

Elkhart, IN 46517-9439

TEL: 574-294-8000

FAX: 574-294-8FAX

©2008 by Crown Audio®, Inc.

Specifications subject to change without prior notice. Latest information available online at www.crownaudio.com. Crown and Crown Audio are registered trademarks of Crown International, Inc.

5/08 136563-3