{"product_id":"cambridge-sound-qt-x-300-8x-active-emitter-e-p-w-16-4-kit-3-200-sf-sound-masking-paging-music","title":"Cambridge Sound Qt X 300 + 8x Active Emitter (E-P-W-16-4) Kit – 3,200 SF Sound Masking, Paging \u0026 Music (TAA)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis Cambridge Qt X 300 sound masking kit gives a large office floor of up to about 3,200 sq ft a complete speech privacy system with paging and background music, using all three zones on the same controller as Creation Networks' smaller office-suite kits. It pairs one Qt X 300 three-zone controller with eight E-P-W-16-4 packs, for thirty-two white Qt Active Emitters with 16 ft patch cables. This is the largest deployment the Qt X 300 supports before stepping up to the 6-zone Qt X 600 — useful when a floor is large but still only needs three distinct areas rather than six. Actual coverage depends on ceiling height and layout, and the Qt X 300 scales to 36,000 sq ft as you add emitters.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e1 x \u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-qt-x-300-control-module-sound-masking-generator-and-controller\"\u003eCambridge Sound Qt X 300\u003c\/a\u003e\u003c\/b\u003e 3-zone sound masking controller (911.0078.900)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e8 x \u003ca href=\"https:\/\/creationnetworks.net\/products\/biamp-cambridge-qt%C2%AE-e-p-w-16-4-active-emitters-for-sound-masking-paging-music-white-4-pack-0899-900\"\u003eCambridge Sound Qt E-P-W-16-4\u003c\/a\u003e\u003c\/b\u003e Active Emitter 4-packs, white, each with 4 x 16 ft patch cables (911.0899.900) — 32 emitters total\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eRequired, sold separately:\u003c\/b\u003e Qt Active Emitters are powered through \u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-active-emitter-power-supply\"\u003eCambridge PS-AE-3 Active Emitter Power Supplies\u003c\/a\u003e and PI-AE power injectors installed next to the first emitter on each run — with 32 emitters across three zones, plan on at least two PI-AE units (each channel covers up to 25 active emitters).\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/products\/cambridge-sound-qt-x-300-control-module-sound-masking-generator-and-controller-911-0078-900-creation-networks-70213.png?v=1757889625\" alt=\"Cambridge Qt X 300 sound masking controller for the 3,200 sq ft kit\" loading=\"lazy\" style=\"max-width:100%;height:auto;display:block;margin:16px auto\"\u003e\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe Qt X 300 is a compact, networked sound masking controller with three controllable outputs, each with A and B cable runs, supporting up to 50 Qt Active Emitters per run. This kit is the largest Creation Networks builds on the Qt X 300 platform — 32 emitters spread across all three zones, roughly 10-11 per zone, well within each output's capacity. Each output can still be set to its own masking level, paging and music level, and spectrum, so three separate departments or areas can each be tuned independently. Two analog inputs bring in a paging source and a background music player, and the AVB network port lets multiple Qt X controllers share audio in larger commercial sound masking installations. The Qt Active Emitters are direct-field ceiling emitters: the driver faces the room, so masking spreads evenly and paging stays intelligible. Each emitter produces 30 to 60 dBA of masking and up to 74 dBA of paging or music at 1 meter. Emitters daisy-chain over Category UTP cable with RJ-45 connectors, and rear switches trim level in 1.5 dB steps for fine tuning during commissioning.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWhy \"active\" matters:\u003c\/b\u003e Cambridge's Qt Active Emitters are the powered version of the company's direct-field emitter line — each unit has its own integral amplifier, rather than relying only on the controller's output like the original passive Qt Emitter. Per Cambridge's own spec sheet, that integral amplifier delivers 17 dB more output than the original passive design. Masking level is unaffected either way (both stay in the same 30–60 dBA comfort range), but that extra headroom is exactly what lets a single ceiling emitter double as a paging and music speaker rather than a masking-only device — announcements and background music play back clearly at up to 74 dBA, a level a passive emitter isn't built to reach. The tradeoff is that active emitters need their own low-voltage power, which is why the PS-AE-3 supplies and PI-AE injectors are called out above as required, sold separately.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eQt X 300 or Qt X 600?\u003c\/b\u003e At 3,200 sq ft, this is right at the edge of what makes sense on a 3-zone controller. If the floor genuinely breaks into three areas, this kit uses the less expensive Qt X 300. If it needs four or more independently tuned zones, the \u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-600-24x-active-emitter-e-p-w-16-4-kit-4-zone-configuration-9-600-sf-sound-masking-paging-music\"\u003eQt X 600, 4-zone kit\u003c\/a\u003e is the better fit even though its coverage figure is larger — zoning need, not raw square footage, should drive the choice at this scale.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/cambridge-sound-qt-r-e-p-w-16-4-active-emitters-4-patch-cables-for-sound-masking-paging-and-music-white-4-pack-911-0899-900-creation-networks-75058.jpg?v=1757896302\" alt=\"Cambridge Qt E-P-W-16-4 white active emitter 4-pack with patch cables\" loading=\"lazy\" style=\"max-width:100%;height:auto;display:block;margin:16px auto\"\u003e\u003c\/p\u003e\u003cp\u003eCreation Networks offers several Qt Active Emitter kits built around the same emitter pack. Choose by coverage area and zoning:\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;min-width:420px\"\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;background:#f4f4f4\"\u003eKit\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;background:#f4f4f4\"\u003eController\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;background:#f4f4f4\"\u003eEmitters\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;background:#f4f4f4\"\u003eApprox. Kit Coverage*\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-300-1x-active-emitter-e-p-w-16-4-kit-400-sf-sound-masking-paging-music\"\u003e400 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 300, 3 zones\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e4 (1 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~400 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-300-kit-with-2-x-e-p-w-16-4-active-emitter-4-packs-8-emitters-sound-masking-paging-music-for-up-to-800-sf\"\u003e800 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 300, 3 zones\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e8 (2 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~800 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-300-kit-with-4-x-e-p-w-16-4-active-emitter-4-packs-16-emitters-sound-masking-paging-music-for-up-to-1-600-sf\"\u003e1,600 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 300, 3 zones\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e16 (4 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~1,600 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003cb\u003e3,200 sq ft kit (this kit)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 300, 3 zones\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e32 (8 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~3,200 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-600-kit-with-6-x-e-p-w-16-4-active-emitter-4-packs-24-emitters-sound-masking-paging-music-for-up-to-2-400-sf\"\u003e2,400 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 600, 6 zones\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e24 (6 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~2,400 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-600-12x-active-emitter-e-p-w-16-4-kit-2-zone-configuration-4-800-sf-sound-masking-paging-music\"\u003e4,800 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 600, 2 of 6 zones used\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e48 (12 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~4,800 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-600-24x-active-emitter-e-p-w-16-4-kit-4-zone-configuration-9-600-sf-sound-masking-paging-music\"\u003e9,600 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 600, 4 of 6 zones used\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e96 (24 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~9,600 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e\u003ca href=\"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-300-25x-active-emitter-e-p-w-16-4-kit-1-zone-12-000-sf-sound-masking-paging-music\"\u003e12,000 sq ft kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 300, 1 of 3 zones fully loaded\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e100 (25 x E-P-W-16-4)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~12,000 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003e\u003csmall\u003e*Coverage estimates assume roughly 100 sq ft per emitter; actual layout depends on ceiling height and type.\u003c\/small\u003e\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSized for About 3,200 sq ft\u003c\/b\u003e — Thirty-two active emitters cover the largest floor Creation Networks builds on a Qt X 300.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasking, Paging, and Music\u003c\/b\u003e — One ceiling emitter network carries speech privacy masking, overhead paging, and background music.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThree Independent Zones\u003c\/b\u003e — Masking level, aux level, and spectrum are set per output so up to three distinct areas can be tuned separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eActive, Amplified Emitters\u003c\/b\u003e — Integral amplifiers deliver 17 dB more output than Cambridge's original passive Qt Emitter, the headroom that makes paging and music intelligible from the ceiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLower Cost Than Qt X 600\u003c\/b\u003e — Uses the less expensive 3-zone controller for spaces that don't need more than three independently tuned areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExpandable to 36,000 sq ft\u003c\/b\u003e — Add E-P-W emitter packs on the same Qt X 300 as the space grows, or step up to Qt X 600 if more zones are needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNetworked Management\u003c\/b\u003e — AVB networking lets multiple Qt X controllers share audio across larger deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlenum-Rated Emitters\u003c\/b\u003e — Emitters are ETL listed and evaluated to UL 2043 for installation in air handling spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive-Year Warranty\u003c\/b\u003e — Both the Qt X 300 and the Qt Active Emitters are covered by Biamp's five-year warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLarge office floor with up to three distinct areas\u003c\/li\u003e\n\u003cli\u003eGovernment space\u003c\/li\u003e\n\u003cli\u003eLarge training facility\u003c\/li\u003e\n\u003cli\u003eHigher education department floor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;min-width:300px;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:42%\"\u003e\n\u003ccol style=\"width:58%\"\u003e\n\u003c\/colgroup\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;background:#f4f4f4\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;background:#f4f4f4\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eKit SKU\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eCN-QTX300-32EPW16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eApprox. Kit Coverage\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e~3,200 sq ft (layout dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eController\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eQt X 300 (911.0078.900)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eZones \/ Outputs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e3 outputs, each with A and B runs, all active\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eController Coverage\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eUp to 36,000 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eActive Emitter Capacity\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e50 per run, 100 per output, 300 total\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eMax Signal Cable Run\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e1,000 ft (304.8 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eAudio Inputs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e2 analog (paging \/ music); AVB networked audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eEmitters Included\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e32 Qt Active Emitters, white, with 32 x 16 ft patch cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eLoudspeaker Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eActive, with integral amplifier (2 W max, 36 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eOutput vs. Passive Emitter\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e+17 dB more output than Cambridge's original passive Qt Emitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eMasking Frequency Response\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e100 Hz to 6.8 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003ePaging\/Music Frequency Response\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e105 Hz to 12 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eMasking SPL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e30 to 60 dBA @ 1 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eMax Paging\/Music SPL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e74 dBA @ 1 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eEmitter Power\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003e2 W each; powered via PS-AE-3 and PI-AE (sold separately, multiple required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px\"\u003eBiamp five-year warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003e\u003csmall\u003eSpecifications sourced from Biamp\/Cambridge Sound manufacturer documentation. Kit coverage is an estimate.\u003c\/small\u003e\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cb\u003eHow much area does this kit cover?\u003c\/b\u003e\u003cbr\u003eWith thirty-two active emitters, the kit is sized for approximately 3,200 sq ft — the largest floor Creation Networks builds on the Qt X 300 platform. Beyond this size, or if more than three independently tuned zones are needed, the Qt X 600 is the better fit.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eShould I choose this or a Qt X 600 kit?\u003c\/b\u003e\u003cbr\u003eIf the floor breaks into three or fewer genuinely distinct areas, this kit uses the less expensive Qt X 300 controller. If four or more independently tuned zones are needed, choose a Qt X 600 kit instead — zoning need should drive the decision more than raw square footage at this scale.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWhat does \"active\" mean on these emitters, and why does it matter?\u003c\/b\u003e\u003cbr\u003eActive emitters have their own integral amplifier rather than depending only on the controller for output. Cambridge's own spec sheet documents 17 dB more output than the original passive Qt Emitter design — that headroom is what allows the same ceiling emitter to reproduce paging and music clearly (up to 74 dBA) rather than being limited to masking noise alone.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWhat else do I need to power the Qt Active Emitters?\u003c\/b\u003e\u003cbr\u003eActive emitters need PS-AE-3 power supplies and PI-AE power injectors installed next to the first emitter on each run. Each PI-AE channel covers up to 25 active emitters, so 32 emitters will need at least two injectors.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCan this system handle paging and background music?\u003c\/b\u003e\u003cbr\u003eYes. The two analog inputs per zone accept a paging source and a music player, and the same active emitters reproduce both alongside the masking signal.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCan I expand the system later?\u003c\/b\u003e\u003cbr\u003eYes, within limits. The Qt X 300 tops out at 300 emitters total (this kit uses 32), so there's room to grow on the same controller, but a major expansion needing more than three zones would call for a Qt X 600 instead.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWhat warranty and support are included?\u003c\/b\u003e\u003cbr\u003eThe Qt X 300 and Qt Active Emitters carry Biamp's five-year warranty. Creation Networks provides sound masking design, installation, commissioning, and ongoing support nationwide.\u003c\/p\u003e","brand":"Cambridge Sound","offers":[{"title":"Default Title","offer_id":50525049454828,"sku":"CN-QTX300-32EPW16","price":7499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/cambridge-sound-qt-x-300-control-module-sound-masking-generator-and-controller-911-0078-900-creation-networks-70213_7645d80f-a9c0-4d03-8445-0fc47955af4b.png?v=1790290730","url":"https:\/\/creationnetworks.net\/products\/cambridge-sound-qt-x-300-8x-active-emitter-e-p-w-16-4-kit-3-200-sf-sound-masking-paging-music","provider":"Creation Networks","version":"1.0","type":"link"}