{"product_id":"speaker-cabinet-port-tubes-for-pa-dj-speaker-cabinets-subwoofer-bass-reflex-tube-bass-box-vent-2-diameter-1-length-2pack","title":"Speaker Cabinet Port Tubes for PA\/DJ Speaker Cabinets Subwoofer Bass Reflex Tube Bass Box Vent, 2\" Diameter, 1\" Length - 2Pack...","description":"\u003cp\u003eSpeaker Cabinet Port Tubes for PA\/DJ Speaker Cabinets Subwoofer Bass Reflex Tube Bass Box Vent, 2\" Diameter, 1\" Length - 2Pack\u003cbr data-mce-fragment=\"\"\u003e?Port Tubes Function?speaker exposes the speaker diaphragm to produce sound, and there is also vibration at the back of the speaker. After installing the port tubes,as the diameter of the port tubes is smaller than the diameter of the speaker, a relatively strong sound wave will rush out of the inverted tube. the sound waves towards the front and back of the speaker are utilized, Improve the sound quality of the speaker\u003cbr data-mce-fragment=\"\"\u003e?Dimensions?Outer diameter (including Flange): 67mm\/2.64\", Maximum inner diameter:53mm\/2.09\", Minimum inner diameter:52mm\/2.05\", Length:24mm\/0.94\"\u003cbr data-mce-fragment=\"\"\u003e?Speaker Cabinet Vent Diameter?Fit for most brands of PA\/DJ Subwoofer Bass Speaker Cabinets Box Vent, Cabinet Cutout: 2\"\u003cbr data-mce-fragment=\"\"\u003e?How to Choose Size?Set the cross-sectional area of the Port Tubes as S1, the effective vibration area of the bass horn as S2, and S1=(0.1-0.4) S2 is the optimal. Port Tubes length LV=(1.463 * 107R ^ 2)\/(FB2VB) -1.463R, among them: LV is the length of the port tubes, R=the opening radius of the port tubes, all in inches; FB is the tuning frequency, in Hz; VB is the volume of the sound system, measured in cubic inches\u003cbr data-mce-fragment=\"\"\u003e?Package Includes?2\" x 1\" Speaker Port Tubes - 2Pack\u003cbr data-mce-fragment=\"\"\u003e\u003cbr data-mce-fragment=\"\"\u003e\u003cbr data-mce-fragment=\"\"\u003e\u003cbr data-mce-fragment=\"\"\u003e1\"D x 2\"W x 2\"H\u003cbr data-mce-fragment=\"\"\u003e\u003c\/p\u003e\r\n\u003cdiv style=\"\" class=\"\" panel max-height:=\"\"\u003e\r\n\u003cdiv class=\"\" col-xs-12 col-sm-9 col-md-9 col-lg-9\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eFREE standard shipping within the United States(3-6 Days)on all orders!\u003c\/li\u003e\r\n\u003cli\u003e100% money back guarantee for items not delivered or damaged during shipping.\u003c\/li\u003e\r\n\u003cli\u003eSafe and secure checkout with our high quality encryption \u003c\/li\u003e\r\n\u003cli\u003eShipping services: UPS, FedEx, USPS.\u003c\/li\u003e\r\n\u003cli\u003eOnly ship to the lower 48 states, no APO\/FPO addresses or PO Boxes allowed.\u003c\/li\u003e\r\n\u003cli\u003eLocal pickups and combined shipping options are not provided at this time.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-3 col-md-3 col-lg-3\"\u003e\r\n\u003cdiv id=\"delivery_right\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\u003cbutton class=\"accordion\"\u003eReturn\u003c\/button\u003e\u003c\/p\u003e\r\n\u003cdiv class=\"panel\"\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-9 col-md-9 col-lg-9\"\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eYou can return a product for up to 30 days from the date you purchased it.\u003c\/li\u003e\r\n\u003cli\u003eAny product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.\u003c\/li\u003e\r\n\u003cli\u003eA full refund if you don’t receive your order\u003c\/li\u003e\r\nA full refund if your order does not arrive within the guaranteed time (6-7 business days not including 1 processing day.)\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-3 col-md-3 col-lg-3\"\u003e\r\n\u003cdiv id=\"delivery_right\"\u003e\u003cbr\u003e\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\u003cbutton class=\"accordion\"\u003ePayment\u003c\/button\u003e\u003c\/p\u003e\r\n\u003cdiv class=\"panel\"\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-9 col-md-9 col-lg-9\"\u003e\r\n\u003cp\u003eWe accept payment by any of the following methods:\u003cbr\u003e\u003cb\u003eCredit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\u003cbutton class=\"accordion\"\u003eFeedback\u003c\/button\u003e\u003c\/p\u003e\r\n\u003cdiv class=\"panel\"\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-9 col-md-9 col-lg-9\"\u003e\r\n\u003cp\u003eCustomer satisfaction is very important to us.\u003cbr\u003eIf you have any problem with your order, please contact us and we will do our best to make you satisfied.\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-3 col-md-3 col-lg-3\"\u003e\r\n\u003cdiv id=\"delivery_right\"\u003e\u003cbr\u003e\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\u003cbutton class=\"accordion\"\u003eContact Us\u003c\/button\u003e\u003c\/p\u003e\r\n\u003cdiv class=\"panel\"\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-9 col-md-9 col-lg-9\"\u003e\n\u003cbr\u003e\r\n\u003cp style=\"text-align: center;\"\u003eIf you have any queries, please contact us via \u003c\/p\u003e\r\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eSupport@ZeeBooth.com\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp style=\"text-align: center;\"\u003eWe usually respond within 24 hours on weekdays.\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"col-xs-12 col-sm-3 col-md-3 col-lg-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv style=\"text-align: center;\" class=\"description\"\u003e\u003ca style=\"font-family: Arial; font-weight: bold; font-size: 20px;\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/div\u003e\r\n\u003cdiv id=\"brdr\" class=\"col-lg-12 title\"\u003e\r\n\u003c\/div\u003e","brand":"HiQltyla","offers":[{"title":"Default Title","offer_id":47230304977123,"sku":"L1676808","price":15.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8637\/1811\/files\/61th1zbUepL._AC_SL1500.jpg?v=1759395440","url":"https:\/\/zeebooth.com\/products\/speaker-cabinet-port-tubes-for-pa-dj-speaker-cabinets-subwoofer-bass-reflex-tube-bass-box-vent-2-diameter-1-length-2pack","provider":"ZeeBooth","version":"1.0","type":"link"}