This pair of Black BIC America Adatto DV52si 125-Watt 2-Way 5.25-In. Indoor/Outdoor Weather-Resistant Bookshelf Surround Speakers features the same tweeters and woofers as BIC America's top-rated DV52si bookshelf speakers. They have 1/2-in. poly dome tweeters and 5-1/4-in. woofers that deliver surprisingly low bass output for their size. Engineered for both home theater and music applications, these indoor/outdoor bookshelf speakers offer stunningly accurate sound. Included are both cloth-indoor and anodized-screen outdoor grilles. The keyholes on the back of their cabinets enable easy flush wall or corner mounting without the additional expense of purchasing mounting brackets. BIC models that match well with the Adatto DV52si are the DV32BL and DV62si bookshelf speakers, DV32CLR, DV52CLR-B, and DV62CLR-S center speakers, DV64 and DV84 tower speakers, and all BIC in-wall and in-ceiling speakers.