{"product_id":"retro-instruments-op-6","title":"Retro Instruments OP-6","description":"\u003cdiv lang=\"en\"\u003e\n\u003cp\u003e\u003cstrong\u003eRetro Instruments OP-6\u003c\/strong\u003e recreates the RCA OP-6 portable amplifier, keeping the original circuitry and the look of its faceplate while adding what a modern studio expects. Available gain exceeds 80 dB, and a stepped gain control means a setting can be written down and returned to. The case carries a durable hammer tone finish, input and output are on XLR connectors, and mains voltage switches between 115 and 230 volts.\u003c\/p\u003e\n\u003ch3\u003eOver 80 dB of clean gain for low-output microphones\u003c\/h3\u003e\n\u003cp\u003eRibbon microphones and some dynamics deliver so little signal that a typical preamp has to be run wide open, and its own noise rises along with the source. The OP-6 has more than 80 dB in reserve, so a quiet ribbon placed well back still produces a usable level. In the opposite case, a loud source or a condenser in front of a guitar cabinet, a 25 dB pad keeps the input stage out of overload. A built-in VU meter and an output attenuator let you separate the choice of tone from the level fed to a converter.\u003c\/p\u003e\n\u003ch3\u003eImpedance matching as a tone control\u003c\/h3\u003e\n\u003cp\u003eThe input impedance switch, with 37, 150 and 600 Ohm positions, is not there purely for technical correctness. On ribbon and dynamic microphones the load across the coil shifts the transducer's resonance, which audibly moves the bottom end and the fill through the midrange, so those three positions give three different voices from the same microphone. Added to that are an instrument input, a phase switch and 48 volt phantom power, covering whatever source arrives. Integral tube test functions let you check the unit's condition without opening the case or reaching for test gear.\u003c\/p\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRecreation of the RCA OP-6 portable amplifier with the original circuitry\u003c\/li\u003e\n\u003cli\u003eOver 80 dB of available gain\u003c\/li\u003e\n\u003cli\u003eStepped gain control for repeatable settings\u003c\/li\u003e\n\u003cli\u003eSwitchable microphone input impedance: 37, 150 and 600 Ohms\u003c\/li\u003e\n\u003cli\u003e25 dB input pad\u003c\/li\u003e\n\u003cli\u003e48 volt phantom power and phase switch\u003c\/li\u003e\n\u003cli\u003eInstrument input\u003c\/li\u003e\n\u003cli\u003eHigh-quality VU meter and output attenuator\u003c\/li\u003e\n\u003cli\u003eIntegral tube test functions\u003c\/li\u003e\n\u003cli\u003eFaceplate true to the original OP-6 design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: tube microphone preamplifier on the RCA OP-6 circuit\u003c\/li\u003e\n\u003cli\u003eGain: over 80 dB\u003c\/li\u003e\n\u003cli\u003eGain control: stepped\u003c\/li\u003e\n\u003cli\u003eMicrophone input impedance: switchable 37, 150 and 600 Ohms\u003c\/li\u003e\n\u003cli\u003ePad: 25 dB\u003c\/li\u003e\n\u003cli\u003ePhantom power: 48 volts\u003c\/li\u003e\n\u003cli\u003ePhase switch: yes\u003c\/li\u003e\n\u003cli\u003eInstrument input: yes\u003c\/li\u003e\n\u003cli\u003eMeter: VU, with output attenuator\u003c\/li\u003e\n\u003cli\u003eConnectors: XLR input and output\u003c\/li\u003e\n\u003cli\u003ePower: 115\/230 V, 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003eCase finish: hammer tone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Retro Instruments","offers":[{"title":"Default Title","offer_id":54598548259153,"sku":"28580","price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/RetroInstrumentsOP-61.jpg?v=1786975482","url":"https:\/\/wrdtunes.com\/fr\/products\/retro-instruments-op-6","provider":"Wired Tunes","version":"1.0","type":"link"}