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Multi-Way Conventional loudspeakers with crossovers

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Old 19th May 2012, 06:17 PM   #11
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Yes, the speakers are reclied for temporal alignment.

Progress was slow, but still:

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Old 22nd May 2012, 12:04 PM   #12
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And the speakers are now complete. They sound great on classical music and jazz, but the tweeter is still a couple of dB too loud for rock, or other styles. I'll try some more different resistors, to find something that suits my very small and reflective room.
They were designed for a medium-large living room, but for the moment I use them in a small room (around 18 mp - 200 sq ft).

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Old 22nd May 2012, 08:14 PM   #13
Hentai is offline Hentai  Romania
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Very nice build. Congrats. You know... classical and jazz is all that matters.heheh (joking)
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Old 23rd May 2012, 01:18 AM   #14
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Loud tweeter. You should know when you simulated the (very commercial) catenary speaker output. The bass will improve a little with time, but you will prob. need +/-2 dB attenuation. Use a shoulder pad in the meantime.

Last edited by Inductor; 23rd May 2012 at 01:24 AM.
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Old 23rd May 2012, 11:36 PM   #15
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I have changed the tweeter and mid attenuation, moved the speakers around the room, found their best place in the room, and now I'm absolutely happy with them.

Final crossover:

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Out of curiosity, I measured them using HOLMImpulse and my old mic, bonus for an ASUS motherboard:
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The mic measures surprisingly linear. If I'm measuring the drivers independently, I get results within 2 dB from the simulation. The down side is that it only measures to 10kHz.

Frequency response in the listening position, 1/3 octave smoothing:

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THD:

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2nd HD

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3rd HD

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4th HD

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5th HD

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Old 24th May 2012, 02:48 AM   #16
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Now please listen to the 50/100 CD's or vinyls that you have and report back. Please don't touch anything in the mean time before posting... crossover upgrades are permitted only by the diy forum rules after 1 year or two.
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Old 25th May 2012, 11:37 AM   #17
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Well, here's the first report:

I only got to listen to them late at night, so "quiet" music (Classical and jazz), at modest levels. My girlfriend, on the other hand (who btw loves them), got to listen to them during the day. And she listened only to some 100+ dB, so she handled the burn-in.
Just after I built them, and during cross-over adjustments, the mids and highs were great, but the bass was just ok. I liked that it was short, dry thumping, but the impact and lower extension were just decent, if not a tiny bit dissapointing.
Last night, I got home in the mood for some Linkin Park. When the music started, the bass extension and impact was just jaw-dropping! I started looking at the tone controls, foobar equalizer, my soundcard equalizer, thinking that my gf might have "adjusted" the bass... They were all still flat!

I guess that what I'm trying to say is: if you'll ever use these woofers, allow them some good days for burn-in! Do not judge them right away!

As for the mids and highs, they remained just great (to my taste)!
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Old 25th May 2012, 02:04 PM   #18
Helmuth is offline Helmuth  Netherlands
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Nice build Daniel looks great.
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Old 1st June 2012, 05:52 PM   #19
CCU is offline CCU  Denmark
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Looks very nice How do you like the woofers?
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Old 14th February 2014, 11:45 AM   #20
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please, put the Cabinet, or the approximate dimensions
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