https://www.nbdesigns.work/home daily 1.0 2026-03-31 https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/8aa86cb7-7898-4f89-95f9-7da917fd4930/NBDesigns+Tower+4T4+-+93.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/0ff019ad-ec59-42ce-a7fa-db6d191fbde3/THE+NY+Intnl+Audio+Show+-+06.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/174c998a-ed0a-4005-aaa3-e8eedccceb0d/NBDesigns+Tower+4+-+10.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/219e7353-e0da-45e2-ba9f-a7941cda1256/1000037577.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/727229fb-d502-4be4-b561-9df0091a4ee9/Neil+Blanchard+Designs+MLTL-6+Speakers.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1651710208036-7WD339BOJ1767JUUB79I/MLTL-6+Dome+%26+Dipole.png Home MLTL-6 Dipole tweeter & Dome tweeter versions https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/a5696ac8-d4c2-4d4d-9799-a70c3ea5059a/NBDesigns+MLTL-6+Oiled+Finish+-+02.jpg Home - Build the MLTL-6 Speakers A mass loaded transmission line speaker with a 6” paper cone woofer - in room response is essentially flat to ~32Hz. ”…arguably the best speaker kit available” - Cheap Audio Man https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/839db9c7-6d1f-4250-a14f-e662f8a54859/Neil+Blanchard+Designs+Tower+6+-+11.jpg Home - Build the Tower 6 Speakers A slim tower mass loaded transmission line speaker with a 6” paper cone woofer - in room response is essentially flat to ~25Hz. https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/3a7950ce-71d4-4300-a1ff-88d216660ae4/MLTL-4-03.jpg Home - Build the MLTL-4 Speakers A mass loaded transmission line speaker with a 4” paper cone woofer - tuned to a fundamental frequency of ~30Hz. https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1718133557105-6N2CYQNS758ONNGM0ZSS/NBDesigns+WB4-01.jpg Home - Build the WB4 Speakers A slim monitor / stand mount mass loaded transmission line speaker with a 4” paper cone wideband driver - tuned to a fundamental frequency of 40Hz. https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1651710990330-EGX9Z84BMXLY2S3YJ4L7/Crossover+vs+Stock.png Home - Upgrade your Sony SS-CS5 Speakers Make a good speaker great. https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1657123012198-G0H9XISWVBJ2PV69N57N/IMG_20220701_211521.jpg Home - Upgrade your Elac BS41-BK Speakers Make an excellent speaker even better. https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1683164371530-Y041V5W8SY48S2SRD8TG/PXL_20230409_175419805.jpg Home - Upgrade your Elac DB5.2 Speakers Make a very fine speaker even better. https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1676911252374-ESUK8KDPYTH3IWUTKBKA/Assembled+B1%2B+Crossover.jpg Home - Upgrade your Emotiva B1+ Speakers Take them to a higher level. https://www.nbdesigns.work/learn daily 0.75 2025-12-27 https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/db37e1b9-2a5d-4803-b34e-bc27d84a9b7e/Generic+2-Way+Crossover+-+2nd+Order+Crossover.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/5186214b-5cfe-498d-9db0-efd0d17a5218/Series+3-Way+Circuits.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1d191106-8c4c-4f6e-8503-e39465fc526c/Generic+2-Way+Crossover+-+3rd+Order+Crossover+Circuits.jpg https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/7fcfd709-50c7-4c76-9330-2128d2b2b74c/Series+3-Way+3rd+Order+Circuits.jpg https://www.nbdesigns.work/contact daily 0.75 2022-05-06 https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1651864860596-5QVDZN4YVQSLZIWREWL8/MLTL-6+Dome+Cabinets+02.png Contact https://www.nbdesigns.work/stockists daily 0.75 2022-05-06 https://www.nbdesigns.work/faqs daily 0.75 2022-05-06 https://www.nbdesigns.work/shipping-returns daily 0.75 2022-05-06 https://www.nbdesigns.work/terms-of-use daily 0.75 2022-05-06 https://www.nbdesigns.work/privacy-policy daily 0.75 2022-05-06 https://www.nbdesigns.work/shop daily 0.75 2025-10-06 https://www.nbdesigns.work/shop/audio-loudspeaker-mods monthly 0.5 2023-05-07 https://www.nbdesigns.work/shop/audio-speaker-plans monthly 0.5 2025-10-06 https://www.nbdesigns.work/shop/audio-speaker-plans/audio-speaker-flat-packs monthly 0.5 2025-10-06 https://www.nbdesigns.work/shop/audio-speaker-plans/audio-speaker-plans-1 monthly 0.5 2025-09-24 https://www.nbdesigns.work/shop/p/tower-4-flat-pack monthly 0.5 2025-10-28 https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/9d28fa35-2480-4088-b070-2e4b38b0f332/NBDesigns+Tower+4++-+09.jpg Shop - 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Tower 4T4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/568a9c3b-6b07-4354-abdb-eb398d2dbff5/Steve+S+-+01.jpg Shop - Tower 4T4 Mass Loaded Transmission Line Speaker Build Manual - Steve S - 01.jpg https://www.nbdesigns.work/shop/p/tower-4-mass-loaded-transmission-line-speaker-build-manual monthly 0.5 2026-03-31 https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/174c998a-ed0a-4005-aaa3-e8eedccceb0d/NBDesigns+Tower+4+-+10.jpg Shop - Tower 4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/ed472525-82bd-4c78-a351-d3b285fc90a4/NBDesigns+Tower+4+-+06.jpg Shop - Tower 4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/431ea7af-bba9-4649-8aa6-85e26c74cdfc/NBDesigns+Tower_4_Response.png Shop - Tower 4 Mass Loaded Transmission Line Speaker Build Manual - NBDesigns Tower_4_Response.png https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/7974f9fb-8dbf-4393-b5bb-c5fcf34cbfab/NBDesigns+Tower+4+Waterfall.png Shop - 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MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/095fa411-c209-445c-9ab2-dcc1f758b0bc/NBDesigns+MLTL-4+-04.jpg Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/af7ec252-e0d1-439c-b5de-cbc8bc9efa51/NBDesigns+MLTL-4+-02.jpg Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/442d57f3-f246-422a-b26d-dde63fc4a223/NBDesigns+MLTL-4+-01.jpg Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/8af84141-9c7f-4fbe-b184-1825ac04fdb4/NBDesigns+MLTL-4+Response-01.jpg Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/b51be2be-dcb1-4fbe-bf07-b7121935eff2/NBDesigns+MLTL-4+Impedance-01.jpg Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/9f5cc6ae-7a7b-48e9-aa70-75ac801db5c5/NBDesigns+MLTL-4+-05.jpg Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/f82efad5-0880-4ed2-98d0-872930b1c130/NBDesigns+MLTL-4+Response.png Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual - NBDesigns MLTL-4 Response.png https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/88b64364-e085-416b-8ffb-2e557f478488/NBDesigns+MLTL-4+Waterfall.png Shop - MLTL-4 Mass Loaded Transmission Line Speaker Build Manual - NBDesigns MLTL-4 Waterfall.png https://www.nbdesigns.work/shop/p/wb4-flat-pack monthly 0.5 2025-09-24 https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/b3a2f71c-042b-48e2-923c-47b82d444f97/NBDesigns+WB4-15.jpg Shop - WB4 Flat Pack https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/b7bb0b9b-6960-43ef-ac40-3bfbe96fd52f/NBDesigns+WB4-18.jpg Shop - 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WB4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1718282198888-6X9EYUF89A2LGDS47DPS/NBDesigns+WB4-22.jpg Shop - WB4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1718134662962-U1KIEXR22SVXNKD3KQOP/WB4+Response.jpg Shop - WB4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1718134680105-Y4OB91PUWLJFB1N509P0/WB4+Impedance.jpg Shop - WB4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1718134687992-M9UN2BHLAUCIXOJYY2D7/WB4+Response+With+Baffle+Step.jpg Shop - WB4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/1718134694710-A4A851DQUYWS371H3H1L/WB4+Impedance+With+Baffle+Step.jpg Shop - WB4 Mass Loaded Transmission Line Speaker Build Manual https://images.squarespace-cdn.com/content/v1/6272ff75478b0755f90c5236/2ef302a0-f8eb-47ca-b12b-0860d16f4864/PXL_20240604_174417056.jpg Shop - 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