Requisite L2M MKIII
Mastering and Mix Buss Limiter
Nearly invisible dynamic control, extreme versatility and the best sound in the business make the L2M the go to piece for engineers all over the world.
Inspiration for the L2M was the original LA2A of the early 1960s. With it’s open sound and softknee characteristics the LA2A was the ideal platform for practical refinements which would make it friendly to the needs of the mastering and mixing process.
In 1998, the L2M prototype ended up in the hands of mastering engineer Denny Purcell. Denny purchased the prototype and two production units of the original L2M MkI. It was his early adoption and word of mouth that gave the L2M it’s beginnings as THE preeminent leveling amplifier.
Since those early units, the L2M has been used in countless recordings and has seen two major upgrades, yielding the L2M MkII (2000 - 2008) and L2M MkIII (2009). The MkIII’s broad capabilities have been further expanded with the addition of a Mid/Side circuit in the new (2010) L2M MkIII M/S Version.
Limiter Response is a purpose designed high-pass filter that tailors the low frequency energy being sent to the opto detection circuit. This allows bass to pass without initiating limiting action below 200Hz. The effect is tight bass with smooth mids and highs, leaving a very analog impression. This also allows for higher than typical compression levels without the usual negative artifacts. Audio gets loud and smooth, just as you like it.
The very nature of the recording process is not just to document sound, but to create sound. And for this, the L2M has a user adjustable Limiter Feedback control which puts this powerful tool in the hands of the recording engineer, by allowing the adjustment of negative feedback being applied to the audio amplifier. The result is control of harmonic generation in 1dB increments.
Output Level using 24-step, 1dB attenuators
Limiter Feedback using 11-step, 1dB rotary switches
3:1/10:1 Ratio Select allowing “roll-over” from compression to limiting
Limiter Response (continuously variable)
Peak Reduction (continuously variable)
Mid/Side (continuously variable)
Stereo Level Ride with 6dB range and tight stereo tracking within 0.2dB
Peak Reduction Link (mono/stereo)
Meter Select (Gain Reduction, +4 VU, +10 VU)
Zero Adjust for GR meter mode
GR Tracking to adjust meter tracking to actual audio
Stereo Adjust for left/right tracking in “Link” mode
VU Adjust for meter calibration (range up to 0 = +20dB)
Heavy Duty, Outboard Power Supply Inlet for tube or SS supply
Connection for circuit and chassis ground
Limiter Link connections for linking additional L2Ms for 5.1 or 7.1 operation
Transformer balanced Output on XLR connector (pin-2 hi)
Protective “Tube Channel” allows easy tube/opto replacement and protection
Rear venting for convenient and efficient rack mounting
Transformer balanced Input (pin-2 hi)
Available with choice of all-tube or solid-state outboard power supplies (not included)
Audiophile coupling capacitors
Audiophile resistor blend
Solid Teflon terminal strips
OFC terminal post
Solid-core audiophile wire and wiring techniques
Polypropylene filter caps with poly bypass, not electrolytic