TX8200 Stereo Mixer
Product Description
The TX8200 is a single rack height, 8 channel stereo mixer suitable for desk or 19" rack mounting. The TX8200 has inpul
for 5 low impedance, balanced micro'phones and 3 stereo auxiliary sources. Each input channel has individual bass, treble and pa
controls. The TX8200 has separate left and right (stereo) output channels.
Front Panel Controls
MicrOphone Gain : The 5 microphone input channels are labelled Micl .. Mic 5 and should be adjusted to provide th
required mix level for each individual channel. Start with the controls set to Level 0 and turn the controls clockwise until the desire
mix level for each channel is reached. Each of the five micro'phone inputs is also equipped with an input sensitivity confol which i
located on the rear panel of the TX8200. Please refer to the Rear Panel section ofthis manual for full details ofthis feature.
Auxiliary Gain: The 3 auxiliary input channels are labelled Aux I .. Aux 3 and should be adjusted to provide the required mi
level for each individual auxiliary channel. Start with the corntrols set to Level 0 and turn the confiols clockwise until the desired mi
level for each channel is reached. The sensitivity of auxiliary inputs #2 & # 3 are set at 250 mV. However, auxiliary input #l has
variable input sensitivity adjushent of 250 mV - I V and is facto'ry pre set at I V (to allow for immediate connection to a high levt
souroe such as a CD player). Please refer to the Other Internal Adjustuents section on the last page of this manual for full adjustuer
details.
Master Left & Right Output The master left and right channel output controls should be adjusted to set the overall mixe
output for each output channel based on the individual input channel levels already set via the individual microphone gain an
auxiliary gain conhols. Start with the output controls set at approximately the Level 5 position and adjust clockwise for more outpt
level or counter-clockwise for less output level.
BaSS TOnal COntfOl: Each input channel has a recesged (screwdriver adjustable) bass tonal adjusunent confol labelle
"Bass". Setting this control in the centre position will give a flat bass response. Adjusting the bass control in a clockwise directis
will provide up to 12 dB of bass boost @ 100 tlz. Adjusting the bass control in a counter-clockwise direction will provide up to 12 dl
ofbass cut @ 100 Hz.
Treble Tonal Control: Each input channel has a recessed (screwdriver adjustable) treble tonal adjustrnent control labelle
'"Treble". Setting this control in the centre position will give a flat treble response. Adjusting the treble confrol in a clockwis
direction will provide up to 10 dB of treble boost @ 10K IIz. Adjusting the treble control in a counter-clockwise direction will provid
up to l0 dB oftreble cut @ 10K IIz.
Pan COntrol: Each input channel has a recessed (screwdriver adjustable) pan control. The pan control determines wha
proportion ofeach input channel will be sent to either ofthe left or right output channels. Setting the pan control in the centra
position will send equal signal levels to each output channel. Turning the pan control in a clockwise direction will send progressivel
more sigrral to the right output channel and less to the left output channel. Turning the pan control in a counter-clockwise directior
will send progressively more signal to the left output channel and less to the right output channel.
VU .tetg i: n' I segment LED W meter is provided for each output channel to give an indication of the signal level for eacl
output channel from -21 to +3 dB. For normal operation the LED's should oscillate in and out of the red zone. If the LED's in the re
zone are lit continually, then the output level controls (or the input gain controls) should be turned counter-clockwise to reduce th
output level. Too much output level can cause sigrral distortion and a mismatch with the device that the mixer is driving.
Headphone Output Socke* A ll4'RTS stereo socket is provided for the connection of moniror headphones. The outpu
level to the headphones is a nominal 3.5 volts @ 600 ohms and is connected before the master output level controls so adjusting th
output level controls will not efrect the headphone output level.
Power Switch: The switch marked "Poriletr" turns AC mains power on and offto the TX8200. Rocking the switch in to th
'Up" position turns AC power on to the fi8200. When the switch is in the "On" position, a red neon will glow in the body of th
switch.
