Watch Seattle rapper Grieves deliver a fiery vocal performance, showcasing how to create the perfect hip-hop vocal chain using UAD plug-ins and Auto-Tune. As the light gets brighter, the photo resistor’s impedance increases which reduces the gain. 1965 Teletronix LA-2A Leveling Amplifier. Here, producer Marco Polo (Masta Ace, Scarface, Talib Kweli, Pharoahe Monch) offers tips on how to use Apollo interfaces and UAD plug-ins to move beyond samples and spur your own creativity. His first leveling amplifier was the Teletronix LA-1, of which only about one hundred units were ever made. A unique electro-optical attenuator system provides instantaneous gain reduction with no increase in harmonic distortion (less than 0.5%). It responds especially well to the human voice in a way that inspires performance.”. Whisper-quiet operation and a wide, wide dynamic range make this tone-tool an unparalleled tone enhancer on stage and in the studio—its natural warmth and clarity are unmatched. His revolutionary idea was to create the world’s first leveling amplifier utilizing optical sensors. “The heart and soul of the LA-2A is in the T4 cell,” explains Bill Putnam Jr. “All of the characteristics are right there. When Bill Putnam Jr. refounded Universal Audio in 1999, reissuing the LA-2A once produced by his father was at the forefront of this mind. Pro Audio. Soon these broadcast compressors began showing up in recording studios around the country. [1] Teletronix was sold to Babcock Electronics of Costa Mesa, California in 1965. It's a totally different device in terms of construction where all the compression magic happens inside an optically coupled element formed by a fluorescent panel and some photocells: the famed T4A element. Nowadays, this predecessor to the LA-2A is extremely rare and hard to find, but is still revered for its own unique, slow, time constant. The Effectrode ® ‘LA-1A’ Leveling Amplifier is a high-end, studio-grade vacuum tube compressor in a pedal. Whether by serendipity or intent, Jim Lawrence’s T4 design had a musical response that allowed the LA-2A the sonic and technological longevity it still retains. “The photocell is really hard to get right,” recalls Bill Putnam, Jr. “For our reproduction, we had a challenging time developing that part. Type: (PDF) Size 136.4 KB. Shipped From. Download UREI TELETRONIX LA-2A LEVELING AMPLIFIER SCH service manual & repair info for electronics experts. The fact that it offers 40 dB of gain from input to output allows it to also be used as a preamp and compressor. Please take a moment to review my edit . The LA-2A was inducted into the TECnology Hall of Fame in 2004. Exploring Additional Compressors and Equalizers (EQs) Teletronix LA-3A 3m 36s. In 1967, Bill Putnam’s company, Studio Electronics (eventually renamed UREI), picked up Babcock’s broadcast division, including the Teletronix brand. UREI TELETRONIX LA-2A LEVELING AMPLIFIER SCH. As the input signal increases, the light panel gets brighter. Well maintained from private professional studio/collector. Autry’s fondness for the LA-1 was instrumental in its gaining acceptance. But, it wasn’t an easy task. It required working with the original manufacturer to perfect it, to dial it in to the specifications of the original photocells from the 1960s. This is an original Teletronix Model LA2A (not the Universal Audio reissue). Sales. This prompted two limited edition reissues — one in the 1970s, and one in the 1980s — and then a full resurrection of the LA-2A in 1999 by Universal Audio. The LA-2A has a sonic character that makes it sought after by many recording engineers. Teletronix LA-2A Leveling Amplifier This is an original Teletronix Model LA2A (not the Universal Audio reissue) with original UTC HA-100X transformer (a key component that makes the original sound so … The LA-2A Leveling Amplifier will produce essentially instantaneous gain reduction of over 40 DB with no increase in harmonic distortion. Compressors and Limiters. By today's standards, the Teletronix LA-2A Leveling Amplifier from Universal Audio appears to be a rather primitive compression device. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. The White 2A Leveling Amplifier is based on a legendary vintage unit that is entirely tube-based. 2015. Little did he know at the time that his work on this Cold War-era project would spawn the Teletronix® LA-2A Leveling Amplifier — one of the most iconic compressors in history. In 1958, Jim Lawrence founded the Teletronix Engineering Company in Pasadena, California, manufacturing broadcast products such as transmitter tubes, emergency tone generators, and full-scale radio transmitters. limiter. Bill Putnam purchased the product rights and the name Teletronix from Babcock Engineering in 1967, folding it into his Studio Electronics Corporation, shortly before he changed the name to UREI. The Teletronix LA-2A: an original 1962 unit will set you back four grand. *LA-2A is a registered trademark of Universal Audio, Inc. Cakewalk’s products, specifically, the CA-2A T-Type Leveling Amplifier, is develope… Since then, Teletronix leveling amplifiers have been prized for their smooth musical sound, and audio engineers have utilized them at all stages of the recording process - from tracking to mastering. Though there have been reissues of the LA-2A, very little has changed from the original design, which is a testament to its reliability and linear response. He combined a luminescent panel with photo resistors (whose impedance changes relative to light intensity) and sealed them in a vacuum-tube-sized metal canister. The effect is illustrated in Figure The photocell and the physics behind it are what immediately result in the two-stage release.”. During a stint at KMGM in Los Angeles, he became frustrated with having to ride the gain to maintain a constant signal level on the air. One got into the hands of the legendary singing cowboy Gene Autry, who loved it and used it for his radio program and recording sessions. RARE Vintage Teletronix Limited Edition 1979-84 UREI LA-2A Compressor Limiter Reissue 1 #132 of 300. 3. ...they EQ all the warmth and low mids and bass. In 1967 Studio Electronics (eventually renamed UREI), picked up Babcock's broadcast division, including the Teletronix brand. I was very curious about the future of the LA-2A, so I asked Bill Putnam Jr. if the advent of plug-ins has adversely affected the sales of the Universal LA-2A, since now people can easily put a digital LA-2A on every single track and the emulations are quite similar to the originals. That introduction lead CBS to buy a pair of LA-2s and shortly after, RCA purchased LA-2s for its New York and Nashville operations. When you put bass and drums in them they get fatter and bigger. Teletronix LA-2A Leveling Amplifier. $3,900 + $75 Shipping. That is, until engineers began to miss the slow, unique compression of the LA-2A and prices for used units started to climb. The Teletronix LA-2A was originally produced in the early 1960s by Teletronix, which was later acquired by Babcock Electronics Corporation. LA-2A Leveling Amplifier by Universal Audio is a Virtual Effect Audio Plugin for macOS and Windows. UAD Teletronix® LA-2A Classic Leveling Amplifier Plug-In When you buy products through links across our site, we may earn an affiliate commission. This timing of the release depends heavily on the length and strength of the incoming signal. Replicating the crucial T4 optical attenuator for a faithful LA-2A reproduction involved a lengthy study of the original photocell formula — including working with both modern device physicists and the developers of the original 60s-era photocells. Lawrence drew from his background with military optical sensors to design a circuit which would “level” the incoming audio signal. The VU meter may also be switched to show the gain reduction or output level. No expense has been spared to bring that classic sound to your recordings. “Modern photocells are designed to be as fast as possible, but they don't have the right multi-stage response needed to sound like a Teletronix design,” explains Shanks.
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