TX8202
8 Channel Stereo Mixer with Direct Outputs
Operating Manual
TX8202, 8 Channel Stereo Mixer
Product Description
The TX8202 is a single rack height, 8 channel stereo mixer with direct outputs suitable for desk or 19” rack mounting. The TX8202 has 4 balanced mic or line inputs and 4 stereo auxiliary inputs. Each input channel has individual bass, treble and pan controls. The first 4 channels also feature a line level direct output which can be used to feed additional amplifiers, mixers or recording devices. An internal dip switch allows the first 4 inputs to be routed to either the direct output, the master outputs or both. The TX8202 also features in-built VOX muting and an optional 4 tone generator with Alert, Evacuate, Pre-Announce, Bell tones and optional remote VCA for the Master Volume.
Front Panel Features
Input Level Controls
Mic/Line Gain: The first 4 inputs are labeled Mic/Line 1 to Mic/Line 4 and should be adjusted to provide the required mix level for each individual channel. Start with the controls set to Level 0 and turn the controls clockwise until the desired mix level for each channel is reached. Each of the 4 inputs is equipped with an mic/line dip switch which is located inside the unit (see Internal Adjustments).
Please ensure that this switch is in the correct position for the type of input (mic or line) that you are connecting to each channel. The input sensitivity when in the mic level position is 1mV (for 1 Volt output). The input sensitivity when in the line level position is 330mV (for a 1 Volt output)
Stereo Line Gain: The 4 auxiliary input channels are labeled Stereo Line 5 to Stereo Line 8. These controls should be adjusted to provide the required mix level for each individual auxiliary channel. Start with the controls set to Level 0 and turn the controls clockwise until the desired mix level for each channel is reached. The sensitivity of auxiliary inputs 5 to 8 is 180 mV (for a 1 volt output).
Master Left and Right Output
The master Left and Right controls should be adjusted to set the overall mixer level for each output channel based on the individual levels already set via the input channel gain controls. Start with the output controls set at approximately the Level 5 position and adjust clockwise for more output level or counter-clockwise for less output level.
Pan Control
Each input channel has a recessed (screwdriver adjustable) pan control. The pan control determines what proportion of each input channel will be sent to either of the Left or Right output channels. Setting the pan control in the centre position will send equal signal levels to both the Left and Right master outputs. Turning the pan control in a clockwise direction will send progressively more signal to the Right output channel and less to the Left output channel. Turning the pan control in a counter-clockwise direction will send progressively more signal to the Left output channel and less to the Right output channel. The pan control also allows the TX8202 to be used in dual zone applications.
Bass Control
Each input channel has a recessed (screwdriver adjustable) bass tonal adjustment control labeled “Bass”. Setting this control in the centre position will give a flat bass response. Adjusting the bass control in a clockwise direction will provide up to 12 dB of bass boost @ 100 Hz. Adjusting the bass control in a counter-clockwise direction will provide up to 12 dB of bass cut @ 100 Hz.
Treble Control
Each input channel has a recessed (screwdriver adjustable) treble tonal adjustment control labeled “Treble”. Setting this control in the centre position will give a flat treble response. Adjusting the treble control in a clockwise direction will provide up to 10 dB of treble boost @ 10KHz. Adjusting the treble control in a counter-clockwise direction will provide up to 10 dB of treble cut @ 10KHz.
LED Display VU Meter
An 8 segment LED VU meter is provided for each of the master Left and Right outputs. The VU meters indicate output signal level from -21 to +3 dB. For normal operation the LED’s should rarely oscillate in the red zone. If the LED’s in the red zone are lit continually, then the output level controls should be turned counter-clockwise to reduce the output level. Too much output level can cause signal distortion and a mismatch with the device that the mixer is driving. The far left blue LED on each the VU meters is for indication that AC power is switched ON to the unit only.
Headphone Output Socket
A 1/4” TRS stereo socket is provided for the connection of monitor headphones. The output level to the headphones is a nominal 3 volts @ 600 ohms and is connected before the master output level controls. Adjusting the master output level controls will not affect the headphone output level.
Power Switch & “On” LED
The black rocker switch on the right hand side of the front panel is used to switch the mixer on and off. The ‘up’ position is on. When the amplifier is connected to an appropriate AC power source and is switched on, the blue on LED’s (located on the left side of both LED displays) will illuminate.
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