Marshall electronic 840 User Manual

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PAIR

Marshall Electronics

Professional Audio Division

Phone: [phone]

www.mxlmics.com



800-800-6608  Fax: [phone]



[e-mail]

Small Diaphragm Instrument Pair

Thank you for purchasing the MXL 840 Pair of small diaphragm instrument

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microphones. With proper care, these mics will provide many years of

satisfaction. For best results, please take a few moments to review this

literature.

Enjoy your microphones!

The MXL Team

General Characteristics

The MXL 840 has a 22mm capsule and a fixed cardioid pickup pattern.
Condenser microphones are very sensitive, readily revealing very subtle
sonic details. They also tend to pick up sounds outside the pattern more
than some designs, 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 ear)
damaging suprises!

Shockmount

The high isolation shockmount may shift during shipping. Simply shift
the elastic bands to center the microphone in the assembly. Be sure that
the wire clamp does not rest on the chassis of the mount, as this impairs
mechanical isolation. Slide the shockmount up the body of the microphone
and stop in the middle for the most secure hold.

Contents

Unpack your MXL 840 Pair of microphones carefully and verify that all of
the following items are included:

•MXL 840 microphone (Qty. 2)

•Shockmount (Qty. 2)

•microfiber cleaning cloth

Care

Dust and foreign material can degrade the performance of a microphone
over time so always store the unit in its case. For vocals closer than 3", use a
pop filter or a foam windscreen to avoid getting moisture on the diaphragm
as this can substantially degrade the microphone’s performance. Store the
microphone in its original packaging in a cool, dry place along with the
included packet of silica gel. These steps will help keep the mic in proper
working order and sounding its best for many years to come.

Specifications

Type Pressure gradient condenser microphone

Capsule Size 22mm

Frequency Range 30 Hz – 20 kHz

Polar Pattern Cardoid

Sensetivity 15mV/Pa

Impedance 110 Ω

Equivalent Noise Level 20dB (A weighted IEC 268-4)

Max SPL for .5% THD 137dB

S/N Ratio 74dB (Ref. 1Pa A-weighted)

Power Requirements Phantom Power 48V ± 4V

Weight 0.2 lbs

Size 22mm x 134mm (0.87” x 5.28”)

Metal Finish Shark skin and Silver

If any of these items are missing or damaged, contact the company from
which you purchased the microphone.

Power Requirement

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 Cable

These microphones connects to a mixer or preamp via XLR cable (not
included). 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 Mogami cable for the best results.

Frequency Chart Polar Pattern

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Warranty

Marshall microphones are guaranteed against defects in material and workmanship
for one year from the 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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