Tube-Tech LCA 2B

Two-Channel All-Tube Compressor / Limiter
Tube-Tech LCA 2B image 1
Tube-Tech LCA 2B image 1
Sweetwater Savings: $501.00 MSRP: $4,500.00
Special Financing - 9 Days Left

Or just $112/month§ for 36 months

0% interest for 36 months**. 36 equal monthly payments required. Valid through 7/6/2017. Learn more

Special Order
Special-ordered from Tube-Tech and usually arrives to you within 1-2 weeks. Please note: special orders cannot be canceled or returned.
Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

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Tube-Tech LCA 2B
Special Order

Double The Desire!

The TUBE-TECH LCA 2B is a two-channel unit with an independent compressor and limiter per channel. The unit is all tube based (except for the power supply and side chain circuit). The VCA (1 dual triode) is placed between the input transformer and the output stage (2 dual triodes).

The audio signal is picked up after the VCA and fed to the side chain circuit. The control signal from the compressor and from the limiter is combined and sent to the link switch and to the control amp, which feeds the VCA. The two bi-directional link busses are accessible at two 1/4" stereo jack sockets on the rear panel. The channels can be linked together for stereo applications and also linked to other LCA 2B's via the two link busses and a standard stereo jack/jack cord.

The compressor has six att/rel presets as well as manual control. The limiter att/rel is fixed. The LED display is fed from the con-trol amp. The limiter LED is fed from the limiter buffer.The audio path is fully symmetrical from input to output. Input and output have fully floating transformers. All DC voltages are stabilized, ex-cept the anode voltage for the output stage.

What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

Additional Media

Signal Processing Buying Guide

Tech Specs

Number of Channels 2
Controls Output, Ratio, Threshold, Attack, Release, Preset ATT/REL, Limiter Threshold
Threshold -10 dB to 16 dB
Ratio 1.6:1 to 20:1
Frequency Response 5Hz-50kHz (-3 dB)
Side Chain Inserts Yes
Inputs 2 x XLR
Outputs 2 x XLR
Sidechain I/O 2 x 1/4"
Rack Spaces 2U
Height 3.5"
Depth 8.1"
Width 19"
Weight 14.3 lbs.
Manufacturer Part Number LCA 2B

Customer Reviews

Based on 2 reviews
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Wonderful, Versatile Compressor

This is a great piece for tracking, especially while recording overdubs, as you can use it again and again on everything you are doing from acoustic guitars to vocals. THEN, when you are ready to mix, put this baby on your 2-mix stereo buss. Heaven. You need one of these.
Music background: 20 years + Recording Studio / Live Sound Engineer


I recently purchased the LCA2B...from Sweetwater. Prior to the purchase I spoke with my sales rep., Rob Russell. I've been dealing with Rob for some time and he knows my studio setup. I asked his advice on purchasing a comp./limiter that would be compatible ,in quality, to my current setup. He recommended the LCA2B. The choice could not have been better. the tube tech LCA2B is a great piece of gear. It places the track right in the mix. Its' clarity/transparency and "gain" is second to none. Yes, I've used other compressors. The LCA2B stands second to none.
Music background: singer, songwriter, producer
See also: Compressors, Tube-Tech, Tube-Tech Compressors / Limiters, Tube-Tech Compressors / Limiters