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Stage 412: Quad Handheld Wireless System

Specifications

System Specifications
Operating Frequency 

VHF 173 MHz to 198 MHz

Number of Frequencies per Channel  

6

Frequency Stability 

±0.005%

Modulation Mode 

FM

Maximum Deviation 

±30 kHz

Operating Range 

200’ / 60m

Operating Temperature Range 

40° to 43°

Working Humidity 

65±20%RH

Frequency Response 

80 Hz to 15 kHz

Tone Key Frequency 

30.00 kHz

 
SR412 Receiver Specifications:
Image Rejection 

35 dB

Dynamic Range 

100 dB

Maximum Output 

1.37 V

Sensitivity 

-100 dBm @ 30 dB SINAD

Output Connectors 

Two 1/4” (6.3 mm) unbalanced, Three XLR balanced

Audio Output Levels 

-12dB

Power Supply 

100-240V, 50/60Hz, 0.4A, Output: DC 15V, 800mA 

Dimensions 

 16.92” x 6.7” x 1.57” / 430 mm x 170 mm x 40 mm

Net Weight 

3.08 lb / 1.4 kg

 

VH12 Transmitter Specifications
RF Power Output 

10mW

Microphone Element 

Q6 Dynamic 

Typical Battery Life 

12 hours

Current Consumption 

120 mA typical

Dimensions 

 ø2.16” x 10” / ø55 mm x 255 mm

Net Weight 

0.48 lb / 0.22 kg

At Samson, we are continually improving our products, therefore specifications and 

images are subject to change without notice.

Summary of Contents for STAGE 412

Page 1: ...OWNER S MANUAL ...

Page 2: ...Copyright 2018 Samson Technologies Corp v1 Samson Technologies Corp 278 B Duffy Ave Hicksville NY 11801 www samsontech com ...

Page 3: ...s in the literature accompanying the appliance ATTENTION RISQUE DE CHOC ÉLECTRONIQUE NE PAS OUVRIR If you want to dispose this product do not mix it with general household waste There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment recovery and recycling Private household in the 28 member states of the EU in Switzerland and...

Page 4: ...n a circuit different from that to which the receiver is connected Consult the dealer or an experienced Radio TV technician for help The device has been evaluated to meet general RF exposure requirement To maintain compliance with FCC s RF exposure guidelines this equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body The manufacturer is not r...

Page 5: ...es specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug the apparatus during lightening storms or when unused for long periods of time 14 Refer all servicing to qualified personnel Service is req...

Page 6: ...re to check out our website www samsontech com for complete information about our full product line We recommend that you record your serial number in the space provided below for future reference Serial number _______________________________ Date of purchase ____________________________ If you have any questions or comments regarding the Stage 412 Wireless System or any other products from Samson...

Page 7: ... Volume Controls This knob sets the level of the audio signal being output through the corresponding receiver output jack on the rear panel Reference level is obtained when the knob is turned fully clockwise to its 10 setting 6 AF Indicators Lights green when the corresponding VH12 transmitter is powered on and there is an audio signal present and detected by the receiver The indicator lights red ...

Page 8: ...ll void your warranty 3 Unbalanced Outputs Use the unbalanced 1 4 jacks to connect the individual SR412 receivers to the line level inputs of a mixer amplifier or other audio equipment 4 CHANNELS A B Mixed Output This balanced low impedance XLR jack carries a mix of both the Channel A and Channel B receivers 5 CHANNELS C D Mixed Output This balanced low impedance XLR jack carries a mix of both the...

Page 9: ... not insert the batteries backwards doing so can cause severe damage to the VH12 and will void your warranty 5 Input GAIN Control This control adjusts the transmitter input sensitivity For optimal performance using the included screwdriver set the input GAIN control to where you see the VH12 PEAK indicator start to light under high levels then turn down until the PEAK light stops lighting 6 IR Len...

Page 10: ...en the receiver and transmitter so that the person using or wearing the transmitter can see the receiver With the SR412 powered off connect the included power adapter Turn the SR412 on momentarily to confirm that the unit is receiving power You ll see the LED displays light up Then turn the SR412 power off With your amplifier or mixer off and volume control all the way down connect the SR412 recei...

Page 11: ...ttery compartment open Turn on the power to the transmitter by pressing and holding Power switch the indicator LED will light green Press the CH A SELECT button on the front of the SR412 to choose an available channel for the CH A receiver The channel number will increase by one digit from 1 6 Once the last channel has been reached the count will cycle back to 1 ...

Page 12: ...R412 receiver Repeat these steps for the remaining transmitters and receivers The four receivers available frequency channels do not overlap so you can set the four receivers to the same channel number Turn on your connected amplifier or mixer but keep the volume all the way down Set the Volume knob on the SR412 fully clockwise to its 10 setting This is unity gain Speak or sing into the microphone...

Page 13: ...ynamic Range 100 dB Maximum Output 1 37 V Sensitivity 100 dBm 30 dB SINAD Output Connectors Two 1 4 6 3 mm unbalanced Three XLR balanced Audio Output Levels 12dB Power Supply 100 240V 50 60Hz 0 4A Output DC 15V 800mA Dimensions 16 92 x 6 7 x 1 57 430 mm x 170 mm x 40 mm Net Weight 3 08 lb 1 4 kg VH12 Transmitter Specifications RF Power Output 10mW Microphone Element Q6 Dynamic Typical Battery Life...

Page 14: ...me frequency To combat this there are several kinds of squelch circuits used by wireless systems The most basic kind called carrier squelch simply sets an RF signal threshold when signals drop below this threshold the audio output is muted Another more advanced design called noise squelch carries out an automatic comparison of the incoming RF signal to a reference voltage generally 200 kHz or high...

Page 15: ...e another Check the receiver and audio input device level controls Distorted Audio Check the receiver output level and audio input device level Check the VH12 s batteries and replace if low Another transmitter may be broadcasting on the same channel Turn off transmitter that may be causing interference Audio Dropout The transmitter may be too far away from the receiver Move closer to the receiver ...

Page 16: ...Samson Technologies 278 B Duffy Ave Hicksville NY 11801 Phone 1 800 3 SAMSON www samsontech com ...

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