Electro-voice US649B DATASHEET

US649B

DYNAMIC LAVALIER
MICROPHONE

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Description

The US649B lavalier microphone is a small,
lightweight, dynamic microphone. The mi­crophone can be used handheld or, when
hands-free movement is desired, it can be
mounted on a stand or hung on the neckcord.

Included accessories are the lavalier cord as­sembly and belt clip. To attach the cord as­sembly to the microphone, press the plastic
adapter onto the front of the microphone. Al­ternately, for semipermanent installation, the
plastic adapter may be slid up the cable onto
the microphone. Please note that the small
flange of the plastic adapter must be posi­tioned properly to hold the microphone.

The belt clip allows the user to position the
cable neatly, and it also prevents unwanted
mechanical noise from being transmitted up
the cable to the microphone.

After inserting the cable into the clip (see Fig­ure 3), simply attach it to the belt at one side.
It may also be clipped onto the edge of a
jacket. The microphone wiring diagram is
shown in Figure 4.

Omnidirectional Microphone
Advantages

The US649B’s omnidirectional polar pattern

brings significant advantages in certain situ­ations. Although directional microphones are
often chosen to avoid problems with feed­back, in many systems where loudspeakers
are located 20 to 40 feet away from the mi­crophone, a directional microphone will
show only negligible advantages with respect
to feedback over an omnidirectional micro­phone. This is especially true where ex­tremely close working distances are em­ployed, say one-eighth to six inches, the dis­tance at which the US649B would typically
be used. In addition, the omnidirectional
character of the US649B will result in a
smoother frequency response than you would
find in a similarly priced unidirectional—an
important consideration, since any roughness
invites feedback. The US649B is also sig­nificantly less susceptible to p-popping and
mechanical shock, and generally more rug­ged and roadworthy than its unidirectional
counterpart.

Limited Warranty

Electro-Voice products are guaranteed
against malfunction due to defects in mate­rials or workmanship for a specified period,
as noted in the individual product-line
statement(s) below, or in the individual prod­uct data sheet or owner’s manual, beginning

with the date of original purchase. If such
malfunction occurs during the specified pe­riod, the product will be repaired or replaced
(at our option) without charge. The product
will be returned to the customer prepaid. Ex-
clusions and Limitations: The Limited
W arranty does not apply to: (a) exterior fin­ish or appearance; (b) certain specific items
described in the individual product-line
statement(s) below, or in the individual prod­uct data sheet or owner’s manual; (c) mal­function resulting from use or operation of
the product other than as specified in the
product data sheet or owner’s manual; (d)
malfunction resulting from misuse or abuse
of the product; or (e) malfunction occurring
at any time after repairs have been made to
the product by anyone other than Electro­Voice Service or any of its authorized ser­vice representatives. Obtaining Warranty
Service: To obtain warranty service, a cus­tomer must deliver the product, prepaid, to
Electro-Voice Service or any of its autho­rized service representatives together with
proof of purchase of the product in the form
of a bill of sale or receipted invoice. A list of
authorized service representatives is avail­able from Electro-V oice Service at 600 Cecil
Street, Buchanan, MI 49107 (800/234-6831
or FAX [phone]). Incidental and

US649B Dynamic Omni Lavalier Microphone

Consequential Damages Excluded: Prod­uct repair or replacement and return to the
customer are the only remedies provided to
the customer. Electro-Voice shall not be li­able for any incidental or consequential dam­ages including, without limitation, injury to
persons or property or loss of use. Some
states do not allow the exclusion or limita­tion of incidental or consequential damages
so the above limitation or exclusion may not
apply to you. Other Rights: This warranty
gives you specific legal rights, and you may
also have other rights which vary from state
to state. Electro-V oice Wired Micr ophones
are guaranteed against malfunction from any
cause for two (2) years from the date of origi­nal purchase. In addition, the Limited War­ranty for the acoustic system contained in
these microphones shall apply for the life of
the product, defined as a period of ten (10)
years from the date that the manufacture of

US649B Dynamic Omni Lavalier Microphone

the specific microphone has been discontin­ued. Any and all active electronics incorpo­rated in these microphones are guaranteed
against malfunction due to defects in mate­rials or workmanship for a period of three
(3) years from the date of original purchase.
The Limited Warranty does not extend to
cables, cable connectors, or switches. Addi­tional details are included in the Uniform

For warranty repair or service informa­tion, contact the service repair department
at: 616/695-6831 or 800/685-2606.

For technical assistance, contact Technical
Support at 800/234-6831 or 616/695-6831,
M-F, 8:00 a.m. to 5:00 p.m. Eastern Stan­dard Time.

Specifications subject to change without
notice.

FIGURE 1—Frequency Response

FIGURE 2—Polar Response at 1,000 Hz

FIGURE 3—Dimensions

FIGURE 4—Wiring Diagram

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