{"product_id":"adastra-ab-5-passive-bookshelf-speakers-4-ohm-pair","title":"Adastra AB-5 Passive Bookshelf Speakers 4 Ohm Pair","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Adastra AB-5 is a pair of passive bookshelf speaker cabinets finished in black woodgrain vinyl. Each cabinet holds a 5.25 inch (135mm) reinforced paper cone driver and a 1 inch (25mm) silk dome tweeter, giving you balanced, full range output across a frequency response of 70Hz to 20kHz. Sensitivity sits at 95dB, so the pair puts out a good level of volume without needing a large amount of power behind them.\u003c\/p\u003e\n\u003cp\u003eImpedance is 4 Ohms per cabinet, which makes these a match for most stereo amplifiers that can run down to 4 Ohms, including Adastra's own low impedance models. Power handling is rated at 50W RMS and 80W peak per speaker, so they suit background music, radio and voice announcements in shops, bars and similar spaces. Connections are made through push terminals marked plus and minus on the rear.\u003c\/p\u003e\n\u003cp\u003eEach cabinet measures 285 x 190 x 167mm and weighs 2.26kg. On the back you get two M6 threaded mounting inserts on 75mm centres, and the pair ships with keyhole flushmount wall brackets so you can fix them straight to a wall. That gives you the option of shelf placement or a permanent wall mount depending on the room and how you want the sound spread.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain driver\u003c\/td\u003e\n\u003ctd\u003e135mmØ (5.25\") reinforced paper cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHF driver\u003c\/td\u003e\n\u003ctd\u003e25mmØ (1\") silk dome tweeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower handling : rms\u003c\/td\u003e\n\u003ctd\u003e50W (each cabinet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower handling : peak\u003c\/td\u003e\n\u003ctd\u003e80W (each cabinet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e4 Ohm (each cabinet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e70Hz - 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePush terminals +\/-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting hole centres\u003c\/td\u003e\n\u003ctd\u003e75mm (2 x M6 threads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e285mm x 190mm x 167mm (each cabinet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.26KG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/100930UK_0ddbb14a-8776-4529-abe2-712b646b65f9.pdf?v=1784952344\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eAre the AB-5 speakers active or passive?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThey are passive speakers, so they need a separate amplifier to drive them. There is no built-in amp or power supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat impedance are these speakers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach cabinet is 4 Ohms. Pair them with a stereo amplifier that can operate down to 4 Ohms, such as Adastra and other low impedance amps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much power do they handle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach cabinet handles 50W RMS and 80W peak. That is plenty for background music, radio and voice announcements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mount them on a wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Each cabinet has two M6 rear threaded inserts on 75mm centres, and keyhole flushmount wall brackets are included in the pair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat drivers are fitted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 5.25 inch (135mm) reinforced paper cone main driver and a 1 inch (25mm) silk dome tweeter in each cabinet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I connect them?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThrough push terminals on the rear, marked plus and minus, using standard speaker cable from your amplifier.\u003c\/p\u003e\n","brand":"AVSL","offers":[{"title":"Default Title","offer_id":53270420095243,"sku":"100.930UK","price":78.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/100930UK_0.jpg?v=1784952375","url":"https:\/\/niori.co.uk\/products\/adastra-ab-5-passive-bookshelf-speakers-4-ohm-pair","provider":"Niori","version":"1.0","type":"link"}