{"product_id":"grace-design-m303s-instrument-preamplifiers-preamps-processors","title":"GRACE DESIGN m303s","description":"\u003cdiv style=\"font-family:'Helvetica Neue',Arial,sans-serif;color:#1A1A2A;max-width:900px;margin:0 auto;line-height:1.6;font-size:15px;\"\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:4px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eProduct overview\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;font-size:16.5px;color:#0D1B3E;\"\u003eThe \u003cstrong\u003eGRACE DESIGN m303s\u003c\/strong\u003e is a high performance, fully isolated stereo active DI with custom-wound transformers, phantom powered, in a rugged 1\/4\" wall extruded aluminium chassis built in the USA.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe m303s is a dual channel active DI that converts high impedance unbalanced signals to low impedance balanced signals: for passive or active instrument pickups and line level sources such as keyboards, synthesisers and computers. Its high impedance FET input amplifier preserves the tone of passive pickups. The power supply converts 48 V phantom power to an isolated bipolar supply, so the GND-ISO switch completely isolates the instrument input ground from the output XLR ground for the highest rejection of ground induced noise. Custom-wound transformers with a high-nickel core and mu-metal magnetic shield give high headroom, low distortion and protection from hum and buzz.\u003c\/p\u003e\n\u003ctable style=\"border-collapse:collapse;margin:6px 0 18px;width:100%;max-width:100%;table-layout:fixed;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003eOutput noise, A‑weighted\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e-118.6 dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003eResponse, ±3 dB\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e20 Hz - 80 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003eInput impedance, pad off\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e1 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003ePhantom current, max.\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e4 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eKey features\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 14px;padding-left:20px;\"\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eStereo, phantom powered active DI\u003c\/strong\u003e with full galvanic isolation\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eCustom-wound transformers\u003c\/strong\u003e with magnetic shield\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003eUltra low noise output: -118 dBu (A-weighted); wide bandwidth 20 Hz - 80 kHz (-3 dB)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003eLow frequency headroom: THD+N 0.007 % at -10 dBu out, 50 Hz\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e1 MΩ input impedance for any pickup or line source; 13 dB input pad\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003ePeak LED 3 dB before clipping; power LED; through connectors\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003eDraws only 4 mA of phantom power; fully ESD and RFI protected\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003eGold contact toggle switches; rugged 1\/4\" wall extruded aluminium chassis; 5 year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eFront and rear panel\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe front carries per channel PAD switches, 1\/4\" TS inputs, red peak LEDs, parallel THRU jacks for a stage amplifier and a green power LED. The rear has the GND-ISO switch and the OUT 1 and OUT 2 XLR connectors, which receive phantom power and send the balanced outputs; the m303s can be powered from either XLR, and phantom power to each channel is recommended when both are used.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eBuilt for stage and studio\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eAn advanced power supply design provides great headroom and dynamic range, and the transformers deliver low-end clarity and high frequency detail. The LEDs can be seen from a distance even in bright daylight.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eIn the box\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 14px;padding-left:20px;\"\u003e\u003cli style=\"margin:0 0 6px;\"\u003em303s stereo active DI\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eGRACE DESIGN m303s: frequently asked questions\u003c\/h3\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eDoes it need batteries or a power adaptor?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. It runs on 48 V phantom power from the mixer or interface and draws only 4 mA.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eCan I connect a keyboard at line level?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Engage the PAD: with it the m303s accepts up to +27 dBu. Never connect it to a power amplifier output.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eHow do I remove hum?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eSet the GND-ISO switch to ISO to isolate the input ground from the output ground.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eWhat are the size and weight?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003e134 x 99 x 44 mm and 0.54 kg (1.2 lb).\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eWhere can I buy the GRACE DESIGN m303s in India?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe GRACE DESIGN m303s is available from \u003cstrong\u003eShivansh Electronics, Kolkata, West Bengal, India\u003c\/strong\u003e, with delivery across India.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Shivansh Electronics","offers":[{"title":"Default Title","offer_id":68004318839151,"sku":"GRACE-DESIGN-M303S","price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/4766\/0399\/files\/GRACE-DESIGN-M303S-PREAMPS-AND-PROCESSORS-SHIVANSH-ELECTRONICS-1.webp?v=1793682561","url":"https:\/\/shivanshelectronics.in\/products\/grace-design-m303s-instrument-preamplifiers-preamps-processors","provider":"Shivansh Electronics","version":"1.0","type":"link"}