Nady Systems 401XQUADLTE4F User Manual

1. Powering the Receiver
Plug the 16V 

 provided into the 

 on the back of the receiver. 

Then plug the power supply into an AC outlet. [Note: Any 16V DC source with 800mA capability 

Turn 

 for all four channels counterclockwise to mimimum located on the front 

of the receiver. Once the receiver is connected to a power source, press the 

 to 

ON position. The 

 indicator will light up.

The 

on the front panel of the receiver will not light up until one or more of the 

four channels is receiving a signal from your system’s transmitter.

2. Antennas
The 

 assembly consists of two antennas. Connect antennas into the 

 on the front of the receiver. Extend the antennas fully to obtain maximum range. 

Position 

at 45 degrees from the horizontal; 90 degrees from each other. For maximum

range, it is always best to maintain a line of sight (no obstructions) between the receiver antennas

and the transmitter whenever possible.

3. Mute (Squelch) Adjustment
In normal operation, the 

should be set fully counterclockwise to the factory preset 

minimum RF level of 1μV for maximum sensitivity. Doing so sets each receiver for maximum range. 

However, in areas of high RF activity, the mute (or squelch, as it is sometimes called) may need to

be adjusted to compensate for the adverse conditions in a particular location. If, with the transmitter

off, its corresponding LED on the receiver front panel flickers or stays on, the

 

should be turned clockwise until the LED extinguishes. For each of the four channels, when the 

Mute is properly adjusted, the corresponding LED will light only when the system’s transmitter is

turned on. Turning the 

 too far clockwise will result in reduced range, but yield a 

quieter signal during dropouts or at the end of the operating distance range.

4. Connecting the Audio Output
The output stage of each channel and the separate four channels mixed output of the 401X QUAD 

are all configured for adjustable unbalanced LINE and fixed balanced XLR line or microphone audio

outputs. The adjustable unbalanced ¼” mix out is a low level LINE with an output impedance of

600 ohms. The individual fixed level balanced XLR out can be configured as high level line out with 

11k ohms output impedance or microphone level out with a 600 ohms load impedance.

For each channel you wish to use, insert an audio cord with a balanced female XLR plug into its 

jack on back of the receiver. Plug the other end of each cord into your amplifier, effect

or mixing board. Adjust volume on your mixing board so that no audio distortion in present when

amp or mixer is set at its usual level. [Note: To prevent possible undesired noises during use, leave 

If you want to use the 401X QUAD as it own mixer (your amplifier, effect or mixing board should

have 12dB or more gain select on), you can connect to the

 which provides a 

mixed line output of up to all four channels, with the relative volume of each channel in the mix 

determined by that channel’s 

.