{"product_id":"gyraf-audio-g25-vocalshape-recording-channel","title":"Gyraf Audio G25 VocalShape Recording Channel","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G25 VocalShape\u003c\/strong\u003e is an elaborate all-in-one box for vocal recording. It is an all-tube unit, consisting of a tube preamplifier stage followed by a filter and tube equalizer section fed into a vari-mu compressor which in turn drives the output stage containing a single band of passive frequency-selective clipping. Every and all parameters optimized for – and only for – recording vocals. All active functions, all amplification stages processing your signal are based on old-fashioned thermionic valves.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_0\"\u003ePREAMPLIFIER\u003c\/h3\u003e\r\n\r\n\u003cp\u003eThe topology of the G25 preamplifier is very much like the classic G9, in a version optimized for high-gain frame-grid tubes (6N23P\/E88CC). The INPUT Switch selects between Line, Mic, and Mic+P48. The GAIN switch controls the amount of gain applied in 4 dB steps. Mic\/Line inputs are floating transformer-balanced with a line load of ~10 kohms and a mic load of ~2 kohms. 48 phantom power can be switched on only to the mic input for powering condenser microphones.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe Instrument input jack on the front is a high-Z input that simply interrupts the connection to back panel Mic\/Line connectors when a jack is inserted. The addition of this Instrument input was possible without in any way compromising the units usability for vocal recordings – it’s a left-over from early revisions that is kept in place because of popular demand.\u003c\/p\u003e\r\n\r\n\u003cp\u003eMic gain maxes at a bit more than +70 dB - plenty for your old beaten-up SM7. Line gain is generally some 27 dB under mic gain setting with Instrument input gain some 17 dB under mic. With all knobs set to 12 o’clock we see some +48 dB gain in mic mode, +21 dB in line mode.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_1\"\u003eEQUALIZER\u003c\/h3\u003e\r\n\r\n\u003cp\u003eThe EQ section consists of a first-order HPF @50 Hz or 120 Hz, a High\/Low shelving symmetric boost\/cut Bax at 6 dB\/oct combined with the Linear Tilt circuit from the G23 – adjustable between ±0 and 1 dB\/Oct at its extremes.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_2\"\u003eVARI-MU COMPRESSOR\u003c\/h3\u003e\r\n\r\n\u003cp\u003eCopied from the G10, off course. Fixed 20ms Attack, variable release 50ms - 1.6sec, Threshold and Ratio functions are combined into one knob labeled unified Drive. Gain reduction read-out on meter.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_3\"\u003eDE-RESONANCE\/CLIPPER\u003c\/h3\u003e\r\n\r\n\u003cp\u003eThis stage, which is integrated into the unit’s output transformer, after the “Output Drive” control pot, is a frequency-selective clipping circuit. The topology is a simplified version of the G21 Infundibulum – with a handful of switchable frequency ranges selected for their usefulness for helping vocal trouble. The ALL position is simple full-spectrum schottky diode clipping.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44451014705255,"sku":"212804","price":4395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g25_212804_1_4879058d-ab4a-4b56-9475-773acaa2c960.jpg?v=1787095499","url":"https:\/\/vintageking.mom\/products\/gyraf-audio-g25-vocalshape-recording-channel","provider":"Vintage King","version":"1.0","type":"link"}