{"product_id":"bose-901-series-4-speakers-equalizer-system","title":"Bose 901 Series — 4 Speakers \u0026 Equalizer System","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAmar Bose built the 901 around a radical idea: that live music in a concert hall reaches your ears mostly as reflected sound, not direct sound. So he flipped the physics. One driver faces forward. Eight face the rear wall. The room becomes part of the speaker. The result is a soundstage that fills a space in a way that conventional box speakers simply don't — wide, enveloping, and effortlessly musical in a way that makes long listening sessions feel like the natural state of things.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Active Equalizer is not optional — it's the other half of the system. It tailors the frequency response with up to 24dB of boost and cut, shaped specifically for the 901's driver array. Mid-bass and mid-treble controls let you tune the presentation to the room. Without it, the 901s don't work. With it, they come alive.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNine full-range 4.5\" drivers per cabinet, no crossover network, and an efficiency rating that lets them sing with as little as 10 watts per channel. This set includes four speakers and the equalizer — a complete, self-contained system ready to go.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003cb\u003e\u003ci\u003eDue to size and weight, this item may incur an additional shipping surcharge and is listed as Store Pick Up Only. Contact us for a quote if you wish to have it Shipped.\u003cbr\u003e\u003cbr\u003ePhone: \u003c\/i\u003e\u003c\/b\u003e888-248-3246\u003cb\u003e\u003ci\u003e\u003cbr\u003eEmail: \u003c\/i\u003e\u003c\/b\u003e\u003ca href=\"mailto:info@echohifi.com\" style=\"color: rgb(255, 255, 255);\"\u003e\u003cb\u003e\u003ci\u003einfo@echohifi.com\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca class=\"button button--primary\" href=\"\/pages\/gear-inquiry\"\u003e\u003cspan class=\"btn-text\"\u003eInquire Now\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e","brand":"Bose","offers":[{"title":"Default Title","offer_id":45489911038089,"sku":"901SPKSYS-USED","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/4557\/0185\/files\/Bose901copy2.png?v=1775587928","url":"https:\/\/echohifi.com\/products\/bose-901-series-4-speakers-equalizer-system","provider":"Echo Audio","version":"1.0","type":"link"}