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ENGLISH
Guided Tour - HT4 Handheld Microphone 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. The advanced circuitry in the Concert IV system ensures that
no “pop” or “thud” will be heard during muting. 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 transmitter for extended periods, turn off the transmitter power by using the power on-off switch (see
#3 below).
2: Battery LED - This LED is an indicator of battery strength. When the HT4 is first powered on, this
LED will light for about two-tenths of a second (if the battery is sufficiently strong), and will then go off.
When battery voltage is low, this LED lights steadily, indicating that the battery needs to be replaced.
3: Power on-off switch - Use this to turn the HT4 on or off (to conserve battery power, be sure to leave
it off when not in use). WARNING: 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.
4: Mic level control (trimpot) - Determines the overall output level of the HT4. Use the supplied plastic
screwdriver to set this to the optimum microphone output level. See the “Setting Up and Using the
Concert IV System” section on page 6 in this manual for more information.
5: Battery holder - Insert a standard alkaline 9-volt 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, we do not recommend them as they do not supply adequate
current for more than two hours.
WARNING: Do not insert the battery backwards; doing so can cause
severe damage to the HT4 and will void your warranty.
