{"product_id":"1-ahrruni1-ho","title":"Athearn RTR Universal SD39\/40-2\/40\/45T-2 (current-run) #1 - AHRRUNI1 - HO","description":"\u003cp\u003eScale Sound Systems Athearn RTR Universal SD39\/40-2\/40\/45T-2 (current-run)\u003c\/p\u003e\n\u003cp\u003eThis is a Rectify Series drop-in speaker system for the current-production Athearn RTR locomotives that come with dual-cube speakers. More than just a box, the enclosure features Diapasonic Tuning™, which allows the lower frequencies to accurately develop and resonate, clears the midrange of excess resonance and tunes the upper-mid\/high response. The speaker uses the factory mounting screws and no modifications are needed to replace the factory speaker.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSo far these have fit the SD39-2 and SD40-2 and SD40\/45T-2 tunnel motors. As of now, I'm not sure what other locomotives Athearn is using these speakers in. If you have different RTR loco that has a similar looking speaker, it's a good bet this will fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eYou can choose to add front-mounted speakers to these in the form of the AHRR-8550-RC1 (SD38-2) or the UFIT-2115-RC1 (SD40-2).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe speaker comes fully assembled and tested.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDimension: 15mmH x 18mmW x 43mmL\u003c\/p\u003e\n\u003c!----\u003e","brand":"Scale Sound Systems","offers":[{"title":"Default Title","offer_id":51408882204987,"sku":"1214-AHRRUNI1","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/4117\/5355\/files\/7e84c8_0f91dea63a1840e7b41980ed12784a31_mv2.jpg?v=1783175059","url":"https:\/\/enginehouseservices.com\/products\/1-ahrruni1-ho","provider":"EngineHouse Services LLC","version":"1.0","type":"link"}