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    <loc>https://nbaudio.com.au/blogs/guides/no-bullsh-t-beginner-guide-to-speaker-building-volume-1-quick-guide</loc>
    <lastmod>2026-10-03T03:15:37-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/No_Bullsht_Beginner_Guide_to_Speaker_Building.jpg?v=1712627451</image:loc>
      <image:title>No Bullsh*t Beginner Guide to Speaker Building - Volume 1: Quick Guide</image:title>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/why-you-can-t-just-swap-out-drivers-in-a-multi-way-loudspeaker</loc>
    <lastmod>2026-10-03T03:15:37-04:00</lastmod>
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  <url>
    <loc>https://nbaudio.com.au/blogs/projects/build-guide-sealed-18sw500</loc>
    <lastmod>2024-09-11T02:43:48-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/Sealed_18SW500_62802c6c-409b-49d9-9be2-df9fb6cc85d6.png?v=1723985918</image:loc>
      <image:title>Build Guide - Sealed 18SW500</image:title>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/projects/customer-project-mechano-23</loc>
    <lastmod>2024-11-13T04:27:45-05:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/Mechano_23.png?v=1731490065</image:loc>
      <image:title>Customer Project - Mechano 23</image:title>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/news/a-recap-of-2025-and-exciting-updates-going-into-2026</loc>
    <lastmod>2025-12-13T22:06:27-05:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/Copy_of_CURRENT_LEAD_TIME.png?v=1765681587</image:loc>
      <image:title>A recap of 2025 and exciting updates going into 2026!</image:title>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/first-speaker-build-kit-or-own-design</loc>
    <lastmod>2026-10-03T06:59:10-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_first-speaker-build-kit-or-own-design.jpg?v=1791022717</image:loc>
      <image:title>Your first speaker build: kit or your own design?</image:title>
      <image:caption>Drawing: two build paths as flow charts, a kit going straight from parts to build to listening, and your own design looping through choose drivers, model the box, build, measure and design the crossover.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/how-to-read-driver-specs-thiele-small</loc>
    <lastmod>2026-10-03T06:59:10-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_how-to-read-driver-specs-thiele-small.jpg?v=1791022719</image:loc>
      <image:title>How to read driver specs: Thiele-Small parameters in plain English</image:title>
      <image:caption>Drawing: a 6.5-inch driver in section beside its impedance curve, with the resonance peak marked at Fs 28 Hz and the DC resistance Re at 3.4 ohms.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/sealed-vs-ported-vs-passive-radiator</loc>
    <lastmod>2026-10-03T06:19:01-04:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_sealed-vs-ported-vs-passive-radiator.jpg?v=1791022720</image:loc>
      <image:title>Sealed vs ported vs passive radiator: which box?</image:title>
      <image:caption>Drawing: sealed, ported and passive-radiator speaker cabinets in section, each with a small frequency-response sketch showing how the bass rolls off.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/passive-crossovers-explained</loc>
    <lastmod>2026-10-03T06:59:09-04:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_passive-crossovers-explained.jpg?v=1791022722</image:loc>
      <image:title>Passive crossovers explained</image:title>
      <image:caption>Drawing: a 2-way passive crossover schematic, with a capacitor, inductor and L-pad resistors feeding the tweeter and an inductor and capacitor feeding the woofer.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/measuring-speakers-on-a-budget-rew</loc>
    <lastmod>2026-10-03T06:59:09-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_measuring-speakers-on-a-budget-rew.jpg?v=1791022724</image:loc>
      <image:title>Measuring speakers on a budget: REW, a mic and an interface</image:title>
      <image:caption>Drawing: a measurement microphone on a stand about a metre from a speaker, beside an impulse response with a gate window set before the first reflection.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/building-a-speaker-cabinet</loc>
    <lastmod>2026-10-03T07:06:27-04:00</lastmod>
    <changefreq>weekly</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_building-a-speaker-cabinet.jpg?v=1791022725</image:loc>
      <image:title>Building the cabinet: MDF vs ply, bracing, damping, ports and sealing</image:title>
      <image:caption>Drawing: an exploded speaker cabinet showing the panels, a window brace and the baffle&apos;s driver and port cut-outs with a gasket ring.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/upgrading-repairing-commercial-speakers</loc>
    <lastmod>2026-10-03T06:19:02-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_upgrading-repairing-commercial-speakers.jpg?v=1791022727</image:loc>
      <image:title>Upgrading or repairing commercial speakers: driver swaps, recapping and refoaming</image:title>
      <image:caption>Drawing: a speaker driver in section with its surround, cone, dust cap, spider, voice coil and magnet labelled, highlighting the surround and voice coil.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/diy-subwoofer-build-vs-buy</loc>
    <lastmod>2026-10-03T06:19:03-04:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_diy-subwoofer-build-vs-buy.jpg?v=1791022728</image:loc>
      <image:title>DIY subwoofer: build or buy?</image:title>
      <image:caption>Drawing: an 18-inch subwoofer in a sealed box with a double baffle, wired to a DSP amplifier, with the bass response before and after EQ.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://nbaudio.com.au/blogs/guides/speaker-wiring-and-impedance</loc>
    <lastmod>2026-10-03T06:59:08-04:00</lastmod>
    <changefreq>weekly</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0795/7115/7265/articles/NBA_guide_speaker-wiring-and-impedance.jpg?v=1791022730</image:loc>
      <image:title>Speaker wiring and impedance, explained</image:title>
      <image:caption>Drawing: two 8-ohm speakers wired to an amplifier in series for 16 ohms and in parallel for 4 ohms.</image:caption>
    </image:image>
  </url>
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