1: Antennas (A and B) - The antenna mountings allow full rotation for optimum placement. In normal operation, both Antenna A (the antenna on the left) and Antenna B (the antenna on the right) should be placed in a vertical position.

2: Volume control - This knob sets the level of the audio signal being output through both the balanced and unbalanced output jacks on the rear panel. Reference level is obtained when the knob is turned fully clockwise.

3: Audio Meter - This “ladder” display (similar to the VU bar meter used on audio devices) indicates the strength of the incoming audio signal. When the “0” segment is lit, the incoming signal is optimized at unity gain; when the “+6” segment is lit, the signal is overloading. When only the left-most “-20” segment is lit, the incoming signal is at just 10% of optimum strength. If no segments are lit, little or no signal is being received.

4: Squelch control - This control determines the maximum range of the SR5 before audio signal dropout. Although it can be adjusted using the supplied plastic screwdriver, it should normally be left at its factory setting

5: ANT A/B LEDs - When signal is being received, one of these will be lit yellow, showing you whether the (left) “A” or (right) “B” antenna is currently being used. The SR55 constantly scans its two antennas and automatically selects whichever is receiving the strongest, clearest signal.

6: RF Meter - This “ladder” display (similar to the VU bar meter used on audio devices) indicates  the strength of the incoming radio signal

7: Power switch - Use this to turn the SR55 power on and off

1: DC input - Connect the supplied 12 volt, 250 mA power adapter here, WARNING: The substitution of any other kind of power adapter can cause severe damage to the SR55 and will void your warranty.

2: Balanced output* - Use this electronically balanced low impedance (600 Ohm) XLR jack when  connecting the SR55 to professional (+4) audio equipment. Pin wiring is as follows: Pin 1 ground  (shield), Pin 2 high (hot), and Pin 3 low (cold).

3: Audio Output Level switch - Sets the audio output level attenuation of the balanced output to -20 dBm (line level) or -40 dBm (mic level).

4: Unbalanced output* - Use this unbalanced high impedance (5K Ohm) 1/4" jack when connecting the SR5 to consumer (-10) audio equipment. Wiring is as follows: tip hot, sleeve ground.(* If required, both the unbalanced and balanced outputs can be used simultaneously)

HT5 Handheld Transmitter:

1: Audio on-off switch - When set to the “on” position, audio signal is transmitted. When set to the “off” position, the audio signal is muted. Because the carrier signal remains during muting, no “pop” or “thud” will be heard. Note that turning this off does not turn off the transmitter power—it is simply a way to temporarily mute the transmission of audio signal. If you don’t plan on using the HT5 for extended periods, turn off its power by using the power on-off switch

2: Battery level meter - This set of three multicolor LEDs indicates relative battery power, indicating whether the installed battery is at low (red), mid (yellow) or high (green) strength. One or more of these will light whenever the HT5 is powered on. When all three are lit, the battery is at maximum strength. When only the red “low” indicator lights, RF performance is degraded and the battery needs to be replaced.

3: Power on-off switch* - Use this to turn the HT5 on or off (to conserve battery power, be sure to leave it off when not in use).

4: Gain control (trimpot) - This input sensitivity control has been factory preset to provide optimum level for the particular microphone capsule provided with your Stage 5 Series system and so we recommend that this not be adjusted manually. If necessary, however, you can use the supplied plastic screwdriver to raise or lower the input level.

5: Battery holder - Insert a standard 9-volt alkaline battery here, being sure to observe the plus and minus polarity markings shown. We recommend the Duracell MN 1604 type battery. Although rechargeable Ni-Cad batteries can be used, they do not supply adequate current for more than four hours. WARNING: Do not insert the battery backwards; doing so can cause severe damage to the HT5 and will void your warranty.

* Be sure to mute the audio signal at your external mixer or amplifier before turning transmitter power on or off, or an audible pop may result.

Specification:

System

• Type of System   : Single Channel VHF Diversity Headset System
• RF Carrier Frequency Range :     Channel 18 / 174.5 MHz
• Approx. Working Range :    300ft
• Overall Frequency Response:    40Hz to 15kHz +/- 3dB
• Signal-to-Noise Ratio: > 100 dB
• # Of Channels    :   Single frequency system, available in 25 different frequencies
• # Of Simultaneous Systems    :   10

SR55 Receiver

• Type of Receiver : SR55 Single Conversion Superheterodyne, Diversity
• Type of Outputs :   Balanced: 3-pin XLR male (+4dBm, 600 Ohm) ; Unbalanced: 1/4" Phone (-10dBm, 5k Ohm)
• Headphone Monitoring :   No
• Power Requirements: 12 Volts DC, 100mA typical (110 mA max.), AC adapter supplied
• Battery Type/Approx. Life AC power only, not applicable
• Display   LED Indicators: Antenna A or B: 2 LEDs ; AF Level: 6 LEDs ; RF Level: 6 LEDs
• Mounting Options :      Flat Surface or Half Rack Mountable
• Antenna Type   :1/4 wavelength x2
• Dimensions (WxHxD): 8.5 x 1.75 x 4.6 (216 x 44 x 116mm)
• Weight :  100g (3.55oz)