{"product_id":"adastra-b30v-b-4-100v-line-background-speakers-black-pair","title":"Adastra B30V-B 4\" 100V Line Background Speakers, Black Pair","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Adastra B30V-B is a pair of 4 inch 100V line speakers finished in black, supplied with mounting brackets so you can fit them horizontally or vertically to suit the space. They use a 3-way design with bass reflex, pairing a 100mm (4\") woofer with a 50mm (2\") mid driver and a 13mm (0.5\") dome tweeter to cover a frequency response of 120Hz to 20kHz.\u003c\/p\u003e\n\u003cp\u003eA rotary switch on each cabinet lets you choose between four 100V line tappings (30W, 20W, 10W and 5W) or run the speakers at 8 Ohms. On a 100V line system the matching impedance settings are 333, 500, 1k and 2k Ohms, which makes it straightforward to balance loudness across several speakers on the same amplifier run. Maximum power handling is 60W and sensitivity is rated at 87dB, so the pair suits background music, surround and monitoring jobs in shops, offices and similar settings.\u003c\/p\u003e\n\u003cp\u003eEach cabinet measures 136 x 240 x 155mm and the set weighs 3.26kg, so the speakers stay compact on a wall or ceiling bracket. If you prefer a lighter finish, the same model is also available in white. Between the two 100V line and 8 Ohm wiring options, the B30V-B fits both distributed audio installs and standard low-impedance amplifier setups without needing extra hardware.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWoofer\u003c\/td\u003e\n\u003ctd\u003e100mm (4\") PP cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMid driver\u003c\/td\u003e\n\u003ctd\u003e50mmØ (2\") PP cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTweeter\u003c\/td\u003e\n\u003ctd\u003e13mm (0.5\") dome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower handling : max.\u003c\/td\u003e\n\u003ctd\u003e60W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e8 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance : 100V\u003c\/td\u003e\n\u003ctd\u003e333, 500, 1k, 2k Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTappings\u003c\/td\u003e\n\u003ctd\u003e30W, 20W, 10W, 5W + 8 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e87dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e120Hz-20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (each)\u003c\/td\u003e\n\u003ctd\u003e136mm x 240mm x 155mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight  (per set)\u003c\/td\u003e\n\u003ctd\u003e3.26KG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eAre these speakers sold individually or as a pair?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThey are supplied as a pair, complete with mounting brackets for horizontal or vertical fitting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run them at 8 Ohms instead of on a 100V line?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Each speaker has a rotary switch that selects one of four 100V line tappings or 8 Ohm operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power tappings are available on the 100V line?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe tappings are 30W, 20W, 10W and 5W, plus the 8 Ohm option.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the frequency response?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe B30V-B covers 120Hz to 20kHz using a 3-way driver arrangement with bass reflex.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they come in any other colour?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the same model is also available in white.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach cabinet measures 136 x 240 x 155mm and the pair weighs 3.26kg.\u003c\/p\u003e\n","brand":"AVSL","offers":[{"title":"Default Title","offer_id":53272125866251,"sku":"952.887UK","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/952887UK_0.jpg?v=1785056568","url":"https:\/\/niori.co.uk\/products\/adastra-b30v-b-4-100v-line-background-speakers-black-pair","provider":"Niori","version":"1.0","type":"link"}