Operating Instructions
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
XLR jack is 0dBm.
NOISE BANDWIDTH
The bandwidth of the noise can be selected from the
EXTERNAL AUDIO MONITOR
front panel via the 3
KHZ/PINK slide switch.
The E
XT. AUDIO IN jack on the front panel offers a conve-
Pink: In this position, the NS1 will output wideband
nient point to connect an external signal to be monitored
pink noise for general purpose testing and level setting.
through the built-in speaker. The S
PKR control will con-
3 kHz: This position of the switch will output a pink
trol the level of this signal
noise signal which is bandpass filtered by a 1/3 octave
T
IP is signal Hi,
filter centered around 3 kHz.
RING is not used.
SLEEVE is Ground,
OUTPUT XLR
This is a switching type of jack. With nothing plugged in,
The selected noise source (Wideband Pink or 3 kHz
the internal noise source is routed to the speaker. When
Pink) is available on the rear panel XLR jack in fully
an external signal source is plugged in, it is routed to the
balanced form.
internal speaker and the NS1s noise source is discon-
nected from the speaker. However, the NS1 generated
PIN 1 is Ground
noise is still available at the rear panel XLR.
PIN 2 is Signal Hi
PIN 3 is Signal Lo
OUTPUT
BALANCED
3kHz FILTERED
LEVEL
OUTPUT
PREAMP/BUFFER
PINK
NOISE
BALANCED
DRIVER
R
TS
T
Ext. Audio
In
2½"
INTERNAL
SPEAKER
SPEAKER
LEVEL
POWER
AMPLIFIER
HITE NOISE
GENERATOR
PINK NOISE
FILTER
3kHz
BANDPASS
FILTER
BALANCED
OUTPUT
FUNCTION
SWITCH
PINK NOISE
S
Specifications
Outputs: • 63 to 93 dB SPL, speaker
• 0 dBm, balanced line
Battery Life: • 35 to 40 hours, line output only
• 3 hours w/speaker at full volume
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
(800)821-1121 (505)892-4501 Fax(505)892-6243
(24 pages)
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