{"product_id":"scale-sound-systems-ahrr-3845-athearn-rtr-sd38-40-45-ho-scale-ahrr-3845-rc1","title":"Scale Sound Systems AHRR-3845 Athearn RTR SD38\/40\/45 HO Scale AHRR-3845-RC1","description":"\u003cp\u003eScale Sound Systems AHRR-3845 Athearn RTR SD38\/40\/45 HO Scale AHRR-3845-RC1\u003c\/p\u003e\n\u003cp\u003eThis is a Rectify Series drop-in speaker system for sound-ready\/equipped Athearn RTR SD38\/40\/45 (NOT -2) locomotives. Most releases from 2024 onward use the newer AHRR-UNI1. Units prior to 2024 use the AHRR-3845. Check your chassis to compare photos.\u003c\/p\u003e\n\u003cp\u003eMore 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\u003eAn optional front-mount speaker may be added to many of these locos. This speaker is designed to replace the small weight (Athearn part #88550) that I have seen used in RTR SD38s and SD40s and has dimples to accommodate the screw-posts. A bit of double-sided tape or a dab of adhesive secures it. It is not recomended to use the front-mount speaker alone.\u003c\/p\u003e\n\u003cp\u003eThe speakers come fully assembled and tested.\u003c\/p\u003e\n\u003cp\u003eOverall dimensions are 18mmH x 18mmW x 47mmL\u003c\/p\u003e\n\u003cp\u003eVIDEO: \u003ca href=\"https:\/\/youtu.be\/45GzKmzPpMg\" target=\"_blank\"\u003ehttps:\/\/youtu.be\/45GzKmzPpMg\u003c\/a\u003e\u003c\/p\u003e","brand":"Scale Sound Systems","offers":[{"title":"Default Title","offer_id":49100259918132,"sku":"AHRR-3845-RC1","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/8982\/5588\/files\/7e84c8_8e690a3a2dbc44d4a06b68f731f0f6ba_mv2.avif?v=1776529883","url":"https:\/\/yankeedabbler.com\/products\/scale-sound-systems-ahrr-3845-athearn-rtr-sd38-40-45-ho-scale-ahrr-3845-rc1","provider":"YankeeDabbler","version":"1.0","type":"link"}