Studio equipment can be a hassle to deal with, especially if one does not know the technicalities. In most cases, the tube preamp and compressor are combined as one piece of equipment, as will be explained here. One needs to know how to set up one's own equipment, in case of any complications. Wiring the mixer to the tube preamp/compressor can be sensitive.
- Skill level:
Things you need
- 19" standard rack
- Tube preamp/compressor
- "Y" cable
Set the mixer in place. The mixer's job is to set levels, route and adjust the signal sources---sending them to the correct output form.
Set the 19" standard rack securely as possible in the space one desires. The desired space should have 12 inches or more of clearance for cooling and ventilation purposes. Do not place the rack atop any heat-producing equipment. The preamp/compressor can produce excessive heat during operation. Also, do not place the rack near any moisture-conducive areas or near monitors (speakers). Moisture could cause voltage shocks or fire. Monitors can generate vibration, causing the preamp/compressor to potentially move or fall from the rack.
Screw the preamp/compressor inside the 19" standard rack.
Verify all power is "off" (preferably unplugged).
Connect the "Tip-Ring" stereo end of the "Y" cable into one of the mixer's input channels. It is called a "Tip-Ring" end because the end of the cable has a tip (send) followed immediately by a ring (return). The ring is wired to the tip of the mono, "Y" plugs.
Connect the split, or "Y," portion of the cable to the preamp/compressor rear panel. Insert one plug into an input channel. Insert the other into a corresponding output channel. If one desires the signal to continue to the master output uninterrupted, insert the cable just past the first click (the tip). If one desires the signal to be interrupted but still have a direct output, insert the cable just past the second click (the ring).
Connect the power cord for the mixer and preamp/compressor.
Turn on the preamp/compressor first.
Turn on the mixer.
Verify the appropriate signals. If the signal reaches the "sweet spot" on the preamp/compressor, it will be seen by the second warm LED being lit under "Drive." Check the signal input on the mixer. If it registers, a successful connection from the mixer to the preamp/compressor has been established.
Tips and warnings
- Do not turn on the power to a tube preamp/compressor until all monitor (speaker) levels are down. Also, turn the power off when the monitor levels are up.
- If you need to replace a power cord, always replace it with the appropriate type of cord. It is preferred to use three-prong cord (grounded).
- Only use the power sources instructed in the specific user manuals.
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