{"v":"2.0","page_type":"product","title":"AcousticDesign surface loudspeakers offer a variety of models specifically taylored for demands of higher fidelity applications. Designed for clarity and presense, these loudspeaker systems deliver pristine audio reproduction for installations requiring a refined audio experience. Models ship complete with the award winning X-Mount system and weather input cover. Consistent and even conical coverage is achieved through Directivity Matched Transition (DMT), a QSC innovation which matches the directivity patterns of the woofer and the high-frequency waveguide at the crossover point. The result is a coherent transition between transducers and improved off-axis response. AcousticDesign models with (T) suffix feature low-loss, low-saturation transformers with selectable taps, including an 8Ω bypass. To enhance weather resistance, the rotary selector is located on the back of the enclosure, protected by a weather grommet. To further enhance performance and speed of install with optimum result, advanced voicing filter sets using QSC Intrinsic Correction techniques are available via Q-SYS networked audio processing or CXD amplifier platforms for a complete QSC systems solution.","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"QSC","href":"/python/html6/menu_brand_products/1000/126000/menu_brand_products_QSC_1_6a6254fe9b.html"},{"label":"QSC-AD-S4T-BK","href":null}],"content":{"product":{"mpn":"QSC-AD-S4T-BK","manufacturer":"QSC","brand":"QSC","brand_url":"/python/html6/menu_brand_products/1000/126000/menu_brand_products_QSC_1_6a6254fe9b.html","title":"AcousticDesign surface loudspeakers offer a variety of models specifically taylored for demands of higher fidelity applications. Designed for clarity and presense, these loudspeaker systems deliver pristine audio reproduction for installations requiring a refined audio experience. Models ship complete with the award winning X-Mount system and weather input cover. Consistent and even conical coverage is achieved through Directivity Matched Transition (DMT), a QSC innovation which matches the directivity patterns of the woofer and the high-frequency waveguide at the crossover point. The result is a coherent transition between transducers and improved off-axis response. AcousticDesign models with (T) suffix feature low-loss, low-saturation transformers with selectable taps, including an 8Ω bypass. To enhance weather resistance, the rotary selector is located on the back of the enclosure, protected by a weather grommet. To further enhance performance and speed of install with optimum result, advanced voicing filter sets using QSC Intrinsic Correction techniques are available via Q-SYS networked audio processing or CXD amplifier platforms for a complete QSC systems solution.","description":"","attributes":[{"name":"Brand name","values":[{"value":"QSC","url":"/python/html6/menu_attr_pair/1000/41000000/41014000/menu_attr_pair_Brandname_QSC_1_a0483f80c1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/41000000/41014000/menu_attr_pair_Brandname_QSC_1_a0483f80c1.html"},{"name":"Manufacturer name","values":[{"value":"QSC","url":"/python/html6/menu_attr_pair/1000/209000000/209630000/menu_attr_pair_Manufacturername_QSC_1_bc246c1d1a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/209000000/209630000/menu_attr_pair_Manufacturername_QSC_1_bc246c1d1a.html"},{"name":"Manufacturer","values":[{"value":"QSC","url":"/python/html6/menu_attr_pair/1000/104000000/104219000/menu_attr_pair_Manufacturer_QSC_1_174a20618e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/104000000/104219000/menu_attr_pair_Manufacturer_QSC_1_174a20618e.html"},{"name":"moq","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"},{"name":"MPN","values":[{"value":"QSC-AD-S4T-BK","url":"/python/html6/menu_attr_pair/1000/125000000/125489000/menu_attr_pair_MPN_QSCADS4TBK_1_65ae60b6d7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/125000000/125489000/menu_attr_pair_MPN_QSCADS4TBK_1_65ae60b6d7.html"},{"name":"multiple","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"},{"name":"qtyInStock","values":[{"value":"0","url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"},{"name":"qtySource","values":[{"value":"FieldMap","url":"/python/html6/menu_attr_pair/1000/263000000/263526000/menu_attr_pair_qtySource_FieldMap_1_da32671cb5.html"}],"name_url":"/python/html6/menu_attr_pair/1000/263000000/263526000/menu_attr_pair_qtySource_FieldMap_1_da32671cb5.html"},{"name":"tierMinQty1","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"},{"name":"tierPrice1","values":[{"value":"440.00","url":"/python/html6/menu_attr_pair/1000/222000000/222510000/menu_attr_pair_tierPrice1_44000_1_645983af79.html"}],"name_url":"/python/html6/menu_attr_pair/1000/222000000/222510000/menu_attr_pair_tierPrice1_44000_1_645983af79.html"}],"images":[],"distributors":[{"name":"Markertek","sku":"QSC-AD-S4T-BK","url":"https://www.markertek.com/product/qsc-ad-s4t-bk/qsc-ad-s4t-bk-two-way-4-inch-surface-mount-loudspeaker-black-pair","pricing":[{"quantity":1,"price_usd":440.0}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/8f78514d-d327-45f9-9c4f-e4a063395786"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["Markertek"],"completeness":0.65,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}