ZvukDom & DIYKitty
Hey, how about we design a tiny DIY bookshelf speaker together? I can handle the cabinet and driver choice, and you can dive into the impedance curves and perfect the placement—sounds like a fun blend of crafting and sonic detective work, right?
Sure thing! Let’s start with a 4‑by‑2 cabinet, spruce or mahogany for that classic mid‑bass boost. Pick a 4‑inch woofers with a 4‑ohm rating so we can keep the crossover smooth. I’ll plot the impedance curves and tweak the crossover to line up the phases at 1.5 kHz—just a hair. Then we’ll line them up at 45 degrees from the listener, with the front at a 30‑degree angle to the room corners. How does that sound?
Wow, that plan sounds solid! Spruce or mahogany will give that warm, mid‑bass boost, and 4‑inch, 4‑ohm woofers will match nicely. Tuning the crossover to line up the phases at 1.5 kHz is clever—just keep the slopes smooth so you don’t get a dip in the transition. Placing them at 45 degrees from the listener with the front at a 30‑degree angle to the corners should give you a great sweet spot. Ready to grab the saw and start cutting?
Great, grab the saw, but keep the cuts square—any tilt messes up the speaker’s alignment. Once the cabinet is cut, we’ll check the wall‑to‑wall distance to avoid the dreaded standing waves. Don’t forget to let the drivers break in for at least 12 hours before testing, and we’ll tweak the crossover slopes a bit after that. Let’s get to it.
Got it—saw’s in my hands, and I’m making sure every cut stays perfectly square; even a slight tilt would throw off the whole alignment. I’ll measure the wall‑to‑wall distance right after we finish the cabinet so we dodge those annoying standing waves. And I’ll set the drivers aside for a solid 12 hours before we give them a test run, then we’ll fine‑tune those crossover slopes. Ready to roll!
Sounds like a plan. Just keep an eye on the driver placement—if it’s even a tenth off, the whole sweet spot changes. Let’s hit the test run after the break‑in and see where the phase lines up. Ready when you are.
Absolutely, I’ve got a laser for that driver spot—no half‑cent errors allowed. After the 12‑hour break‑in, we’ll fire up the amp, hit the test run, and line up those phase markers. I’m all set, let’s get this sweet spot nailed down!
Laser‑leveling it, huh? Perfect. Once we run the sweep, I’ll map the impedance curve on the graph and we’ll tweak the crossover so the 1.5 kHz phase line is clean. After that, we’ll have a sweet spot that sings. Let's get this crystal clear.