{"product_id":"4771","title":"Vertex Steel String Supreme SSS Double Preamp Slight Return Edition - Excellent Condition","description":"  The Vertex SSS Double Preamp is a two-channel all-analog preamp based on serial #001 of a Dumble Steel String Singer. Each channel has its own gain, filter, level, and independent EQ section with Bright\/Deep and Rock\/Jazz switches. Below noon the gain knob gives a fat clean boost; past that it moves into bluesy crunch and light overdrive while the active EQ shapes midrange focus between roughly 800 Hz and 1.2 kHz.  Both channels are true-bypass and can be used in front of an amp, into a modeler, or straight into a cab sim\/IR loader. The pedal runs on standard 9-18 V center-negative power and draws about 20 mA.  \u003cb\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003eDimensions: 4.6 in x 3.2 in x 1.8 in\u003c\/li\u003e\n\u003cli\u003ePower: 9-18 VDC center-negative, ~20 mA\u003c\/li\u003e\n\u003cli\u003eInput impedance: 2.2 M ohms\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 10 K ohms\u003c\/li\u003e\n\u003cli\u003eControls per channel: Gain, Filter, Level, Bright\/Deep switch, Rock\/Jazz switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/b\u003e This item has been tested and is in good working condition. It does not come with original packaging. It has Velcro on the back. No power supply included.","brand":"Vertex","offers":[{"title":"Default Title","offer_id":52625803116676,"sku":"4771","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0985\/2433\/2164\/files\/909e3fd7-c421-4e09-a072-3d27722c35aa.jpg?v=1786198249","url":"https:\/\/soundswap.online\/products\/4771","provider":"SoundSwap","version":"1.0","type":"link"}