Lectrosonics NS1 User Manual

NSNS

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NSNS

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TECHNICAL DATA

Portable Noise Generator

• Internal speaker with level control

• Balanced XLR output

• Wideband pink noise

• 3kHz filtered pink noise

The Lectrosonics NS1 Portable Noise Generator is a
multifunction instrument designed primarily to facili­tate fast, accurate setup of the Lectrosonics Modular
Automatic Mixing system. By providing a consistent
noise source, the input trim (gain) on each mic preamp
channel can be accurately adjusted to compensate for
the variation in sensitivity that occurs in some micro­phone designs.

The built in speaker provides an acoustic noise source
for individual channel adjustment or to monitor exter­nal signals connected to the ¼” jack. Wideband pink
noise or 3kHz 1/3 octave filtered pink noise is avail­able at the balanced XLR line output for room
equalization and checking high frequency driver cov­erage in multi-way speaker systems. The housing and
mechanical parts are made of machined aluminum for
lasting ruggedness in the field

• 1/4” phone jack input

• Powered by two 9V batteries

LECTROSONICS

EXT

AUDIO IN

SPKR

3kHz

PINK

OUTPUT

3.2"

NOISE GENERATOR

ON

POWER

1

2

3

OFF

NS

1

1.22"

LECTROSONICS, INC.

Operating Instructions

W

The NS1 provides a number of features to allow quick The level of this signal is controlled by the front panel
and easy setup of microphones and sound systems. OUTPUT knob. This control has no effect on the speaker

output. The maximum level available at the rear panel

NOISE BANDWIDTH

The bandwidth of the noise can be selected from the
front panel via the 3

KHZ/PINK slide switch.

Pink: In this position, the NS1 will output wideband
pink noise for general purpose testing and level setting.

3 kHz: This position of the switch will output a pink
noise signal which is bandpass filtered by a 1/3 octave
filter centered around 3 kHz.

XLR jack is 0dBm.

EXTERNAL AUDIO MONITOR

The E

XT. AUDIO IN jack on the front panel offers a conve-

nient point to connect an external signal to be monitored
through the built-in speaker. The S
trol the level of this signal

T

IP is signal Hi,

RING is not used.
SLEEVE is Ground,

OUTPUT XLR

The selected noise source (Wideband Pink or 3 kHz
Pink) is available on the rear panel XLR jack in fully
balanced form.

PIN 1 is Ground
PIN 2 is Signal Hi

This is a switching type of jack. With nothing plugged in,
the internal noise source is routed to the speaker. When
an external signal source is plugged in, it is routed to the
internal speaker and the NS1s noise source is discon­nected from the speaker. However, the NS1 generated
noise is still available at the rear panel XLR.

PIN 3 is Signal Lo

PKR control will con-

HITE NOISE

GENERATOR

PINK NOISE

FILTER

PREAMP/BUFFER

Specifications

Outputs: • 63 to 93 dB SPL, speaker

Battery Life: • 35 to 40 hours, line output only

• 0 dBm, balanced line

• 3 hours w/speaker at full volume

3kHz

BANDPASS

FILTER

3kHz FILTERED

PINK NOISE

PINK

NOISE

SPEAKER

BALANCED
OUTPUT
FUNCTION
SWITCH

AMPLIFIER

LEVEL

OUTPUT

LEVEL

POWER

BALANCED

DRIVER

T

TS

R
S

2½"

INTERNAL

SPEAKER

BALANCED

OUTPUT

Ext. Audio

In

Power Supply: 2 ea 9V alkaline batteries

External
Input Level: –10 dBu to +4 dBu;

20 dB gain from ¼” input to speaker

NS1-0799

LECTROSONICS

581 Laser Rd NE - Rio Rancho, NM - 87124 USA
[phone] [phone] Fax[phone]

www.lectrosonics.com [e-mail]

®