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Universal Audio LA-3AD - Dual Unit Classic Audio Leveler/Compressor

B&H # UNLA3AD Mfr # LA-3AD
No Longer Available

The LA-3AD is a dual unit package of the LA-3A Leveling Amplifier from Universal Audio. A faithful reproduction of the original classic solid-state compressor, the two single channel units are each housed in a 2U half-rack chassis and are loved for their unique compression characteristics and sonic signature. A rack-mounting kit for placing both units side by side in a 19" rack is included.

The original LA-3A made its debut at the 1969 NY AES show and marked the departure from the tube design of the LA-2A. The LA-3A incorporated components and design concepts from the Putnam-designed 1176LN Limiting Amplifier and was immediately embraced as a studio workhorse and still widely used today.

The reissue meticulously retains all the qualities of the original. This includes the same simple control set and the T4 electro-optical attenuator, which is the source of the unit's program dependent compression. The commonly performed "LA-3A gain mod" is added as an additional switch for maximum studio versatility.

The LA-3A does not have user controls for attack and release times. These are automatically controlled by the nature of the T4 cell. The lack of controls in no way compromises the functioning of the unit. Due to the automatic and extremely musical way the LA-3 rides level, it's quick and easy to get good results especially on vocals and acoustic instruments.

Faithful recreation of the classic solid-state opto-compressor
Custom Universal Audio transformers and T4 cell
Discrete amplifier with up to 50dB of gain
Rear panel "Gain Mod" switch for additional gain control
Function Leveler/compressor
Number of Channels Dual single channel units
Inputs Per unit:
1 x XLR (2-pin hot)
Terminal Strip (shared with output)
Outputs Per unit:
1 x XLR (2-pin hot)
Terminal Strip (shared with input)
Maximum Input Level -0dBm @ 50dBm gain setting
Compression Threshold Set by Peak Reduction and Gain control and by the input level of the input device
Compression Ratio Program and control settings dependent
Attack Time 1.5ms or less, program dependent
Release Time Stage 1: 60ms (50% release)
Stage 2: 0.5 to 5 seconds, program dependent
Gate Threshold Not applicable
Gate Rate Not applicable
Maximum Output Level +20dBm nominal, 27dBm maximum peaks
Make-up Gain 50dB +/-1dB
Frequency Response 20Hz to 20kHz, +/-0.5dB
Dynamic Range Not specified by manufacturer
Noise -80dB @ limiting threshold
Dimensions (WxDxH) Each unit:
9 1/2" x 9 1/4" x 3 1/2"
Weight Each unit:
6.5 lbs
Specialties Includes rack mounting kit for 19" racks
Universal Audio LA-3AD - Dual Unit Classic Audio Leveler/Compressor
  • 2 x AC Power Cable
  • Rackmount Kit
  • One (1) Year Warranty
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    Usually ships in 7-14 business days i This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.

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