{"product_id":"mackie-mdb-1a-mdb-1a-active-direct-box","title":"Mackie MDB-1A MDB-1A Active Direct Box","description":"The Mackie MDB-1A is an active direct box designed to connect a single instrument'such as a guitar, bass, or keyboard to a microphone preamp for musicians and audio engineers in recording sessions, houses of worship, and live stage applications. It converts a high-impedance, instrument-level signal via its 1\/4\" TS unbalanced input to a low-impedance, mic-level output via its balanced XLR 3-pin jack. A 1\/4\" thru jack allows simultaneous connection to an amplifier or pedalboard.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eA -20 dB pad reduces the input level to prevent distortion when using a high-gain source, and the ground-lift switch inhibits hum caused by ground loops. Additionally, there are switches for polarity and a 120 Hz high-pass filter. The Merge function allows the Thru jack to be used as a second, simultaneous input. Due to its active design, the MDB-1A operates on phantom power. A sturdy steel chassis enables confident use in the studio or on the road.","brand":"Mackie","offers":[{"title":"Default Title","offer_id":49397428355349,"sku":"KMCMDB1AU","price":139.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/MDB-1A-U.jpg?v=1759821053","url":"https:\/\/unitedsupplycorp.com\/products\/mackie-mdb-1a-mdb-1a-active-direct-box","provider":"United Supply Corp.","version":"1.0","type":"link"}