Handcrafted HiFi – Angled Ported 2-Way Speakers (W.I.P.)


After completing my very first 2-way speaker design I had so many new ideas about how to build a great speaker. I felt inspired and wanted to take on building a pair of small surround speakers for the living room. Since these would be on display in the main room it is important that they be an extremely well finished product to not stand out as a ‘DIY project’. Ideally they would also be small and sophisticated.

Project goals:

  1. Make rear surround speakers to sit on the small shelf behind my living room couch.
  2. Tweeters must be protected from children poking them (no soft domes).
  3. Chosen speaker drivers should be ‘pretty’ (nice cones, no exposed wires).
  4. Small cabinets, and 4″ diameter drivers or less (design should feel understated).
  5. Match the timbre and flatness of my front sound stage (using metal cone drivers).
  6. Design a more sophisticated crossover (higher orders).
  7. Design should include slot port.
  8. strong bass is not a major consideration (target 65Hz – 20kHz)


Driver Selection

Dayton Audio ND25TA-4 1″ Titanium Dome Neodymium Tweeter

Dayton Audio ND91-4 3-1/2″ Aluminum Cone Full-Range Neo Driver




Cabinet Design

Crossover Design

The crossover design makes use of 2nd and 3rd over crossovers, and pays attention to phase alignment of the two drivers. Port tuning is close to Fs, and tweeter is rolled off at about 4.5kHz as it apparently can sound a bit harsh below that.

Planning out the component layout of the crossover.

Theoretical frequency response.


Scale paper mockups to dial in the angle and size.

Will be replacing this older design.

random project