Wireless Interface Information
The interface lets the artist use AMT microphones with most wireless transmitters. In most cases the Interface will eliminate the beltpack that has come with your microphone system. The Interface will replace the belt pack and can be fastened using velcro to the belt pack of whichever wireless system that you are using.
AMT needs to know which wireless system you will be using first. We will then be able to send you the correct interface for your microphone and wireless system. The interface is an accessory item, please call 908-665-2727 for price and how to obtain one.
AMT microphones need a minimum of 6VDC, the interface power supply is 10VDC. It uses a 12v battery that can deliver over 80 hours of intermittent use. This extends the battery life in the transmitter.
There are many makes and models of wireless systems, each one is different in some way, whether it be power, the mic connection, input threshold, etc. The interface can accommodate all the wireless parameters in a small highly reliable container.
Looking at Figure 1, (A) is the input for the AMT microphone. It is a 3.5mm jack. Once the mic is put into the jack, it is powered by a 12VDC battery. Never leave mic plugged in when not in use. This can unnecessarily drain the battery. The wire has a connector on the end (B). This plugs into the wireless transmitter. There are different connectors for different transmitters. If the connector you received with the interface does not fit in our transmitter, please call the phone number below for tech support.
After plugging in connector into transmitter, remove the protective tabs on the back of the interface from the Velcro. Press the interface with the adhesive Velcro onto the front of the transmitter. See Figure 2.
Figure 1 (C) this controls the volume by using a small jeweler screwdriver. Turning fully clockwise is maxim gain fully counter clockwise is off. The main reason for this control is so the output of the mic does not overdrive the transmitter or active the compander circuit in the transmitter.
Each Interface leaves the facility adjusted for an average level. You might want to fine-tune it to your needs.
Low trim (D). This control, when turned fully clockwise, rolls off low frequencies. When turned fully counter clockwise is flat. Use this control to remove low rumble, low feedback and key noise, but removing too much can cause a this, unnatural sound. High Trim (E). Turn full clockwise, rolls off the high frequencies fully counter clockwise is flat. This should be use to remove some of the unwanted brightness or if excessive feedback occurs. Never overcompensate. This will cause a very muddy and unnatural sound.
To replace battery, Look at figure 2 remove Interface from the transmitter. Turn the Interface so that the back is facing you. Remove screw and pull apart. Replace battery with new one. (Part number.)* Make sure polarity is correct, look at Figure 3 (A).
Inside next to the battery are 3 pins and a jumper. Look at Figure 3 (B). When the jumper is placed on 1 & 2, voltage comes from the battery.
When the jumper is placed on Pin 2 & 3. voltage comes from the transmitter. It is important to remember not all transmitters put out enough voltage to power the mics correctly. Check the LED on mic for power status. This option should be used only in an emergency.
