TLA-100A
Tube Leveling Amplifier

"I found I could use [the TLA-100A] on vocals that I needed to squish a fair amount but didn't want to lose all the nice top I got off the microphone." ......Joe Chicerelli, Producer/Engineer

The Summit Audio TLA-100A Tube Leveling Amplifier is a classic design with a technological hybrid of vacuum tube and solid state devices. The harmonious blend of old and new technologies produces the incredibly warm and smooth sound of vacuum tubes in a compression device that does not have the inherent disadvantages of older designs. Summit Audio has been making the TLA-100A for over 20 years and produces a sound that remains a much sought after quality that is used on literally thousands of records and in live sound venues across the world.

Compressing in a musically satisfying way is easy with the TLA-100A; the incredibly forgiving circuit design makes it almost impossible to make it 'pump and breath'. When fast transient signals are being sent to the TLA-100A, the unit reacts quickly both in attack and release, when the signal is more legato, the attack and release times automatically react more slowly resulting in a set-and-forget compressor that always sounds right with a minimum of knob fiddling. Try it on vocals and bass, also great for kick drum and guitars. The TLA-100A really shines for tracking and mixing individual instruments and is linkable with another TLA-100A for stereo signals.

Key Features:
In continuous production for over 20 years
"Soft knee" characteristic
Switch selectable attack and release times
Stereo linkable
Unity gain bypass switch for A/B comparison
Transformerless signal path
Side chain insert
3 year warranty
Hand crafted in the U.S.A.

TLA-100A Basic Operating Instructions

Basic operation: After warm up (15 minutes), set the Gain Reduction control to 0 and adjust the Gain control for 0VU on the meter. Switch the attack to slow and the release to fast. Now adjust for the desired amount of gain reduction and recheck the output level.

As the amount of gain reduction is increased, the processed audio follows a smooth reduction curve, thereby changing the compression ratio. In this way, compression may be easily controlled. If a large peak is detected, the unit will automatically increase the compression ratio to keep the audio output controlled.

If a low compression ratio is desired, turn the gain reduction control until the meter indicates a small amount of gain reduction. If a higher ratio is desired, set the gain reduction control so the meter indicates a high amount of gain reduction. Try different attack and release settings, depending upon the program material and the desired effect.

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.

Compressing a stereo mix: Insert a 1/4" cable into two TLA-100A's link jacks, set the attack and release switches and gain reduction on both units to the same settings. Put both units in link mode. The channel with the strongest peak will override both units.

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.

Summit TLA-100A Specifications
Output: +4 dBu corresponds to 0 VU. The output is electronically balanced or unbalanced using 990 discrete operational amplifiers. Output impedance is 75 ohms. The recommended output load is 600 ohms or more. Maximum output level is +25 dBu.
   
Input: The input is also electronically balanced or unbalanced. Input impedance is 20k . Maximum input level is +25 dBu .
   
Panel Size : Standard 19" by 3.5" ( 2 units of rack space)
   
Depth: 10.5" in addition to user I/O cabling
   
Power: 35 watts, 115 or 230 volts operation, 50 or 60 Hz
   
Shipping Weight: 16 lbs. (7.2 kg.)

Specifications subject to change wihout notice.





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