{"product_id":"stam-audio-sa-2b-stereo-tube-opto-compressor","title":"Stam Audio SA-2B Stereo Tube Opto Compressor","description":"\u003ch2\u003eLegendary Tube Opto Compression. Now in True Stereo.\u003c\/h2\u003e\n\u003cp\u003eBring the unmistakable smoothness, depth and musical control of classic Danish tube optical compression to your stereo signal chain with the \u003cstrong\u003eStam Audio SA-2B Stereo Tube Opto Compressor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDesigned as a meticulously matched dual-channel evolution of the legendary Danish 1B-style opto compressor, the SA-2B combines vintage-inspired tube tone with the precision required for modern stereo mixing and mastering. From vocals and instruments to drum buses, subgroups and the stereo mix bus, the SA-2B delivers sophisticated dynamic control while helping preserve the width, balance and integrity of your stereo image.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the SA-2B is a carefully engineered tube-and-transformer signal path featuring \u003cstrong\u003ecustom US-made input transformers, Swedish-made Lundahl output transformers, selected 12AU7 and 12AX7 tubes, and laboratory-matched optical gain-reduction elements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe result is the kind of compression engineers reach for when they don't simply want a signal to be quieter — they want it to sound more polished, dimensional and finished.\u003c\/p\u003e\n\u003ch2\u003eTrue Stereo Compression Without Sacrificing Your Image\u003c\/h2\u003e\n\u003cp\u003eRunning two independent analog compressors across a stereo source can create a serious problem: if the channels don't respond identically, the stereo image can shift as gain reduction changes.\u003c\/p\u003e\n\u003cp\u003eThe SA-2B is specifically engineered to address that challenge.\u003c\/p\u003e\n\u003cp\u003eStam Audio uses a \u003cstrong\u003eproprietary matching circuit\u003c\/strong\u003e along with carefully matched components to maintain consistent frequency response, tone and time constants between the left and right channels.\u003c\/p\u003e\n\u003cp\u003eIts custom optical gain-reduction elements are laboratory matched so the attack and release behavior of both channels remains closely synchronized.\u003c\/p\u003e\n\u003cp\u003eThat makes the SA-2B particularly compelling for \u003cstrong\u003estereo buses, drum groups, instrument buses and mastering chains\u003c\/strong\u003e, where stable imaging is every bit as important as musical compression.\u003c\/p\u003e\n\u003ch2\u003eTube Tone Meets Premium Transformer Iron\u003c\/h2\u003e\n\u003cp\u003eThe character of a premium analog compressor isn't created by one component — it's the interaction between the entire signal path.\u003c\/p\u003e\n\u003cp\u003eThat's why Stam Audio equips the SA-2B with \u003cstrong\u003etwo custom US-made input transformers and two Lundahl output transformers manufactured in Sweden\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe transformer pairs are selected for consistency to help maintain symmetrical harmonic character across the stereo field.\u003c\/p\u003e\n\u003cp\u003eSelected \u003cstrong\u003e12AU7 and 12AX7 tubes\u003c\/strong\u003e complete the analog signal path, giving the SA-2B the rich harmonic texture, depth and smooth top-end response associated with premium tube compression.\u003c\/p\u003e\n\u003cp\u003eWhether you're subtly controlling a stereo mix or pushing the circuit harder for additional character, the SA-2B is designed to make analog compression part of the sound — not merely a dynamics-management process.\u003c\/p\u003e\n\u003ch2\u003eMusical Optical Gain Reduction\u003c\/h2\u003e\n\u003cp\u003eOptical compression has earned its place in professional studios because of the naturally musical way it responds to dynamics.\u003c\/p\u003e\n\u003cp\u003eThe SA-2B takes that concept into a carefully matched stereo architecture using \u003cstrong\u003etwo custom optical gain-reduction elements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts attack and release controls provide \u003cstrong\u003econtinuously variable, fixed, or combined fixed\/manual operation\u003c\/strong\u003e, allowing the compressor to move from smooth automatic-style control to more deliberate dynamic shaping.\u003c\/p\u003e\n\u003cp\u003eThat flexibility makes the SA-2B equally comfortable adding gentle cohesion to a mix bus or delivering more obvious compression when the production calls for it.\u003c\/p\u003e\n\u003ch2\u003eBuilt-In Parallel Compression\u003c\/h2\u003e\n\u003cp\u003eWant the density and harmonic character of heavier compression without losing the transient detail of the original signal?\u003c\/p\u003e\n\u003cp\u003eTurn the \u003cstrong\u003eDry\/Wet Blend\u003c\/strong\u003e control.\u003c\/p\u003e\n\u003cp\u003eParallel compression is built directly into the SA-2B, allowing you to blend the compressed and uncompressed signals without setting up additional routing in your console or DAW.\u003c\/p\u003e\n\u003cp\u003ePush the compressor harder for tone and density, then blend the original signal back in until you find the ideal balance between \u003cstrong\u003epunch, dynamics and analog character\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e5-Position Sidechain High-Pass Filter\u003c\/h2\u003e\n\u003cp\u003eLow-frequency energy can make a stereo compressor work harder than you want it to. A powerful kick drum or bass note may trigger excessive gain reduction and cause the rest of the mix to pump.\u003c\/p\u003e\n\u003cp\u003eThe SA-2B addresses this with a \u003cstrong\u003e5-position sidechain high-pass filter\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBy reducing the amount of low-frequency information reaching the compressor's detector circuit, you can maintain tighter, more consistent compression while allowing the low end to retain its impact.\u003c\/p\u003e\n\u003cp\u003eIt's an especially useful feature when processing \u003cstrong\u003emix buses, drum buses and bass-heavy productions\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eTrue Bypass for Confident A\/B Comparisons\u003c\/h2\u003e\n\u003cp\u003eThe SA-2B includes a \u003cstrong\u003etrue bypass switch\u003c\/strong\u003e, making it easy to compare your processed signal against the original.\u003c\/p\u003e\n\u003cp\u003eThis is particularly useful when making subtle mix-bus or mastering decisions, where level, tone and dynamics changes need to be evaluated carefully.\u003c\/p\u003e\n\u003cp\u003eSwitch the processing in and out and hear exactly what the SA-2B is contributing to your sound.\u003c\/p\u003e\n\u003ch2\u003e30dB of Gain\u003c\/h2\u003e\n\u003cp\u003eWith up to \u003cstrong\u003e30dB of gain\u003c\/strong\u003e, the SA-2B provides plenty of level capability for professional studio applications.\u003c\/p\u003e\n\u003cp\u003eCombined with its transformer-coupled tube circuitry and optical gain-reduction architecture, the SA-2B gives engineers a powerful analog tool for controlling dynamics while simultaneously shaping tone.\u003c\/p\u003e\n\u003ch2\u003eHandmade Analog Craftsmanship\u003c\/h2\u003e\n\u003cp\u003eEvery Stam Audio SA-2B is \u003cstrong\u003ehandmade in Chile\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRather than treating the two channels as unrelated compressors sharing the same chassis, Stam Audio carefully auditions and matches critical components — including transformers, tubes, capacitors and optical elements — to create a stereo processor designed to behave cohesively across both channels.\u003c\/p\u003e\n\u003cp\u003eFor engineers building a serious analog mix or mastering chain, that attention to stereo matching can be just as important as the compressor circuit itself.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eKey Features\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStereo tube optical compressor\u003c\/strong\u003e inspired by the legendary Danish 1B-style compression circuit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-channel original-style 1B circuit and schematic\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProprietary channel-matching architecture designed for consistent stereo operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCustom laboratory-matched optical gain-reduction elements\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCustom US-made input transformers\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSwedish-made Lundahl output transformers\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelected \u003cstrong\u003e12AU7 and 12AX7 tubes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to \u003cstrong\u003e30dB of gain\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinuously variable, fixed, or fixed\/manual \u003cstrong\u003eattack and release control\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDry\/Wet Blend\u003c\/strong\u003e control for onboard parallel compression\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e5-position sidechain high-pass filter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTrue bypass\u003c\/strong\u003e for accurate A\/B comparisons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned to maintain stable stereo imaging during gain reduction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExcellent for \u003cstrong\u003estereo mix bus, drum bus, subgroups and mastering\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eClassic-style controls and knobs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e20Hz–20kHz frequency response\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGreater than 95dB signal-to-noise ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeavy-duty \u003cstrong\u003e3U rackmount chassis\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHandmade in Chile\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2-year manufacturer's warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eTechnical Specifications\u003c\/h1\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStereo Tube Optical Compressor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCircuit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal-style 1B circuit and schematic, dual channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptical \/ Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGain Reduction Elements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 custom matched optical GR elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Transformers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 custom US-made transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Transformers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 custom Lundahl transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTubes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelected 12AU7 and 12AX7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAttack \/ Release\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuously Variable, Fixed, or Fixed\/Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParallel Compression\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDry\/Wet Blend Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSidechain Filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5-position High-Pass Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBypass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrue Bypass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20Hz–20kHz ±0.1dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal-to-Noise Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRack Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHandmade in Chile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch1\u003eIdeal Applications\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eStam Audio SA-2B Stereo Tube Opto Compressor\u003c\/strong\u003e is an outstanding choice for:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStereo Mix Bus\u003c\/strong\u003e — Add controlled movement, analog depth and cohesion while maintaining a stable stereo image.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMastering\u003c\/strong\u003e — Apply refined stereo dynamic control with premium tube and transformer coloration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrum Bus\u003c\/strong\u003e — Add weight and density while using the sidechain HPF to prevent kick energy from dominating the compressor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVocal Groups\u003c\/strong\u003e — Smooth stacked vocals and backing-vocal buses while adding tube richness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKeys \u0026amp; Synths\u003c\/strong\u003e — Give digital instruments and stereo synthesizers additional analog dimension and dynamic control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAcoustic Instruments\u003c\/strong\u003e — Smooth dynamic variations while retaining a natural, musical presentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStem Processing\u003c\/strong\u003e — Add analog character and controlled dynamics to stereo instrument groups before the final mix.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Choose the Stam Audio SA-2B?\u003c\/h1\u003e\n\u003cp\u003eGreat stereo compression is about more than controlling peaks.\u003c\/p\u003e\n\u003cp\u003eIt is about making a mix \u003cstrong\u003emove as one\u003c\/strong\u003e without collapsing the space between its elements.\u003c\/p\u003e\n\u003cp\u003eThe Stam Audio SA-2B combines the musical behavior of tube optical compression with matched stereo architecture, premium transformers, selected tubes and modern workflow features such as \u003cstrong\u003eparallel compression, sidechain filtering and true bypass\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor producers, mixing engineers and mastering studios looking for a premium \u003cstrong\u003estereo tube opto compressor\u003c\/strong\u003e that combines vintage-inspired character with modern stereo functionality, the SA-2B deserves a place at the center of the analog rack.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Stam Audio","offers":[{"title":"Default Title","offer_id":52571671789870,"sku":null,"price":273199.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/2804\/4334\/files\/SA-2B-scaled-1.jpg?v=1789111783","url":"https:\/\/www.beatboxentertainment.com\/products\/stam-audio-sa-2b-stereo-tube-opto-compressor","provider":"Beatbox Entertainment ","version":"1.0","type":"link"}