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Customer Reviews 96 Reviews

4.7 out of 5 stars

by T. Prestin Pinckney (7/25/2016):

Due to a few project credits from my past, I have the misfortune of having a constant… Read more

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LA-610 MkII Classic Tube Recording Channel
A classic tube mic preamp & LA-2A-style
compressor in a single unit.

The LA-610 MkII combines a hand-built in the USA, all-tube, vintage mic preamp design — heard on classic albums by Coldplay, The Beach Boys, and Van Halen — with authentic Teletronix T4 opto-compression circuitry.

This classic channel strip design, with its warm preamp tone and smooth, natural-sounding compression, is updated with modern, user-requested features like true compressor bypass, larger metering, increased output, and an auto-switching power supply.

Now You Can:
  • Record through the all-tube mic preamp derived from legendary Bill Putnam-designed 610 modular console
  • Compress signals with authentic Teletronix T4 opto-compression tube circuitry
  • Shape your tones further with High and Low frequency shelving tube EQ
  • Record your tracks through vintage UA, "handmade in the USA," circuits

The Legendary 610 Preamp
The LA-610 MkII is based on the legendary console modules developed by Bill Putnam in the 60's. Noted for their musical character and warmth, innumerous classics by artists ranging from Frank Sinatra to Coldplay, Van Halen to Pet Sounds, have been recorded using the 610 preamp. The LA-610 MkII will impart the same silky, vintage warmth of the original console’s mic amp design to your sources.
Toneful Tube Compression
The LA-610 Mk II’s T4 tube compressor provides the same ultra-warm limiting that has made the Teletronix LA-2A the king of fat opto compression. The electro-optical detector, or "T4 cell,” is the heart and soul of the Teletronix LA-2A. Its photo resistors are the crucial circuit components, giving the compressor its signature warmth, making it a “go-to” for tracking vocals, bass, or acoustic guitars. Taken together, it’s impossible to get a bad sound out of the LA-610 MkII’s legendary preamp and compression circuits.



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  • Carl Glanville


    "The sonic picture is completed with the output of the 610 being connected to my LA-2A or 1176 before being committed to tape."

    Ariel Borujow

    (P-Diddy, TI, Black Eyed Peas)

    "The LA-610 MkII is my go to front end pre/compressor for all my vocals. It gives me the warmth that i'm looking for before I hit the DAW. I highly recommend it!"

    Jonathan Herrera

    (Bass Player Magazine)

    "The LA-610 Mk II sounds colorful, dynamically sensitive, and warm."

    George Shilling

    (Resolution Magazine)

    "Anyone who believes there’s no action in high-end outboard should be introduced to the UA range of processors."

    Myles Boisen

    (Electronic Musician)

    "LA-610 Mk II stood up to the competition in a studio that included vintage UREI LA-series compressors and an LA-2A clone."

  • Hugh Robjohns

    (Sound On Sound)

    "The new LA-610 Mk II represents a very welcome addition to the modern studio equipment list."

    Huw Price

    (Music Tech UK)

    "Forget those phoney retro recording channels with a placebo valve, the LA-610 Mk II is the real deal."

    Michael Cooper

    (Mix Magazine)

    "The LA-610 Mk II has its own beautiful voice. Don't let the low price fool you, [it] belongs in a rack with the priciest gear."

    Mitch Gallagher

    (EQ Magazine)

    "No matter how you set it [LA-610 Mk II] up, you'll get low noise, great-sounding results."

    George Shilling

    (Resolution Magazine)

    "The [610 combines] beautifully with the T4 compressor for ample flexibility in most recording situations."

  • Matt Still

    (Elton John, Outkast)

    "The LA-610 Mk II has a nice curve line, and a nice, overall warm compression ... it just has a nice, smooth sustain to it."

User Ratings

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Average Rating (96 Reviews)
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    Hands down
    by T. Prestin Pinckney(Monday 25 July, 2016)

    Due to a few project credits from my past, I have the misfortune of having a constant stream of generally ignorant "vocalists" booking time for tracking, all of whom have the acute demand of seeing/using an Avalon737 in their chain, because they it was in someone they idolize… Read More

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    Warm sound with LA-610 MkII
    by S. Yakimovich(Wednesday 22 June, 2016)

    About 3 months ago my acquaintance has given me LA-610 MkII for couple of days. To the surprise I literally for half an hour have fallen in love with this device. Everything is heard. Each turn of the handle is perceived aurally. For couple of seconds you can wind what that sound to you it… Read More

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    trumps the plugin
    by S. Muscio(Thursday 26 May, 2016)

    First thing I noticed is how quiet this thing is. The room noise when tracking is virtually gone, only the good stuff left. Not the case with the 610 plugins. The T4 compressor is great. Warm, almost too warm. I almost always find myself boosting some highs to compensate. 1.5 at 10k works… Read More

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    Couldn't love it more!
    by B. Hackler(Sunday 15 May, 2016)

    Great piece of gear. Insane options and sound for the price. Recommend to everyone. Read More

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    My Number One Pre
    by . (Sunday 1 May, 2016)

    I record roots music, and the Mk II is fantastic for all of it: vox/guitars/bass/mando/etc. My default signal chain is a large-diaphragm condenser into a Mk II, Mk II through a vintage board with British-eq, and then to tape. That combo is incredible for Americana, pulling all of the vintage… Read More

  • Rik Simpson

    Simpson has worked on three of Coldplay's albums, including Mylo Xyloto, which he co-produced, engineered, and helped mix. Read More

Features & Specs
LA-610 MkII Classic Tube Recording Channel
Features & Specs.
Key Features
  • All-tube mic preamp design derived from legendary Bill Putnam-designed 610 modular console
  • Authentic Teletronix LA-2A-style T4 opto-compressor section
  • MkII exclusive features include: true compressor bypass, larger metering, increased output, and auto-switching power supply
  • Mic pre with Gain and Level controls, variable impedance switching, and instrument DI for recording tone “color”
  • High and Low frequency shelving EQ
  • Complete vintage channel strip at groundbreaking price within project studio reach
  • UA build quality and heritage, audiophile components, hand-assembled in the USA
  • Backed by 1-Year limited warranty
MkII Improvements:
  • True Bypass of the Compressor Circuit
  • Larger and Better Lit Metering
  • Improved Output Signal Performance
  • Auto-Sensing Universal Power Supply
  • Improved stability with feedback-style shelving EQ
  • Improved consistency with Input Gain values
  • LED Jewel Light Never Needs Replacing
  • Mic, Line and Hi-Z Input, Line Output
  • Dual Impedance Mic and Hi-Z inputs (Mic: 2K, 500Ω, Hi-Z: 2.2M, 47KΩ)
  • 5 position Stepped Preamp Input Gain, Continuous Preamp Output Level
  • -15dB Pad Switch (15dB Pad/Off)
  • Phase reverse (0/180º)
  • 48 volt Phantom Power switch (+48v/Off)
  • +/- 9 dB stepped High Shelving Filter (4.5, 7, 10 kHz)
  • +/- 9 dB stepped Low Shelving Filter (70, 100, 200 Hz)
  • T4 Optical Compressor with Continuous Peak Reduction and Makeup Gain
  • Compress/Limit/Bypass Modes of Dynamic Operation (3:1 / ∞: 1)
  • Meter Source Selector Switch (Preamp/Gain Reduction/Compressor)
  • Front Panel Power switch (On/Off)
  • Custom Altran and Cinemag Transformers


UA 2011 Product Catalog.pdf

LA-610 MkII Manual.pdf

Custom Insert Cable.pdf