Summit Audio TLA-100A Tube Leveling Amplifier - Manual (Page 5)

5
TRACKING, LIVE SOUND, MIXING
Plug the TLA-100A into your mixing console’s insert jack or patch bay.
The TLA-100A also sounds great if inserted directly in line after the
preamplifier.
DE-ESSING
Plug a TRS insert cable into the side chain jack on the back of the TLA-
100A. Plug the send (tip) of the insert cable to the input of an EQ, and the
return (ring) of the cable to the EQ output. Boost the frequencies on the EQ
that you want to compress (de-ess).
DUCKING
Send the output of the “lead” program material into the side chain input
after inserting the TLA-100A on the “background” program material.
Example: Send the output of a vocal mic into the side chain, with the TLA-
100A inserted on the lead guitar track. As the singer uses the vocal mic, the
lead guitar will decrease in amplitude.
CIRCUIT EXPLANATION
The TLA-100A features a vacuum tube amplifier driving an electronically
balanced 990 output stage. All the signal amplification in the audio path
takes place in the tube circuit. The 990 amplifiers provide a low output
impedance for driving cables and 600
Ω loads. The 990 is a high
performance op amp made of discrete parts, and then potted for thermal
stability.
The input is electronically balanced, and directly feeds the unique
compression cell. The SIDE CHAIN allows for stereo coupling, or the
insertion of an equalizer. Due to the combination of tube and solid state
circuitry long term drift of the compression circuit is minimal and tracking
of two TLA-100As stereo linked is within .3dB.