Universal Audio LA-610 MkII – Classic Tube Recording Channel

OVERVIEW

The LA-610 MkII seamlessly blends two of Universal Audio’s most iconic designs: the 610 tube preamp and the Teletronix LA-2A-style T4 opto-compressor. This fusion offers a rich, full-bodied tone with the smooth, natural compression that has graced countless classic recordings. Whether tracking vocals, bass, guitars, or other instruments, the LA-610 MkII imparts a timeless analog warmth that’s both musical and versatile.​

Modern enhancements elevate the MkII version, including true compressor bypass for added flexibility, larger and more readable metering, increased output levels, and an auto-switching power supply for global compatibility. These updates ensure that the LA-610 MkII not only preserves the legacy of its predecessors but also meets the demands of contemporary recording environments.

KEY HIGHLIGHTS

Legendary 610 Tube Preamp:

Derived from Bill Putnam’s iconic 610 modular console, the LA-610 MkII’s preamp section delivers the rich, harmonically complex tones that defined recordings from artists like Frank Sinatra, The Beach Boys, and Van Halen. Its all-tube design ensures a warm and musical character that’s ideal for a wide range of sources.

Authentic T4 Opto-Compressor:

The integrated Teletronix LA-2A-style T4 opto-compressor provides smooth, natural compression with a program-dependent response. This classic design ensures transparent dynamic control, preserving the integrity of the original performance while adding a touch of analog warmth.

Modern Enhancements:

The MkII version introduces user-requested features such as true compressor bypass, allowing the preamp and EQ sections to be used independently. Larger metering offers improved visibility, while increased output levels and an auto-switching power supply enhance usability in various studio settings.​

Versatile EQ and Impedance Options:

A two-band shelving EQ provides ±9 dB of boost or cut at selectable frequencies, enabling precise tonal shaping. Variable impedance settings for both mic and instrument inputs ensure optimal matching with a variety of microphones and instruments, expanding the unit’s versatility.​

FEATURES

• All-tube mic preamp design derived from the legendary 610 modular console
• Authentic Teletronix LA-2A-style T4 opto-compressor section
• True compressor bypass for flexible signal routing
• Larger, illuminated VU meter for improved visibility
• Increased output levels for better integration with modern equipment
• Auto-switching internal power supply for global compatibility
• High and Low frequency shelving EQ with selectable frequencies
• Variable impedance settings for mic (500Ω, 2kΩ) and Hi-Z (47kΩ, 2.2MΩ) inputs
• Front-panel DI input for instruments
• Handcrafted in the USA with premium components​

TECHNICAL SPECS

Mic Input Impedance: Selectable 500Ω or 2kΩ

Hi-Z Input Impedance: Selectable 47kΩ or 2.2MΩ

Preamp Gain: 5-position stepped input gain; continuous output level control

EQ: ±9 dB High shelving at 4.5, 7, or 10 kHz; ±9 dB Low shelving at 70, 100, or 200 Hz

Compressor: T4 optical compressor with continuous Peak Reduction and Gain controls; Compress/Limit/Bypass modes

Metering: VU meter with Preamp Output, Gain Reduction, and Compressor Output modes

Phantom Power: +48V switchable

Phase Reverse: 0°/180° switchable

Pad: -15 dB switchable

Power Supply: Internal auto-switching (100–240V)

Dimensions: 19″ W x 3.5″ H x 12.25″ D (2U rackmount)

Weight: Approximately 12 lbs (5.4 kg)​