Manual
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 
W
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 
www.lectrosonics.com  sales@lectrosonics.com 


