This old thread could be helpful, including a link to the upgraded crossover by Zilch (RIP):
https://www.audioheritage.org/vbulletin/showthread.php?7134-Rebuild-on-Altec-19-crossover
I'd...
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This old thread could be helpful, including a link to the upgraded crossover by Zilch (RIP):
https://www.audioheritage.org/vbulletin/showthread.php?7134-Rebuild-on-Altec-19-crossover
I'd...
Fantastic work, Rob - many kudos to you. Thanks for being willing to share the fruits of your labor as well.
I'm running two AHB2 amps in my bi-amped 4344 setup - I can't say enough good...
I like the clean, simple look of the two tone black + wood veneer from the hifisentralen.no thread above better, but here's another cool example of a DIY M2 I saw online somewhere that was a bit more...
Same here - by a large margin.
Incredibly cool and inspiring - thanks for sharing.
Google Translate really works a treat these days; it seems like it even does a good job of translating some Norwegian slang/idioms to English.
...
I’m still connected with Richard and might be able to get your questions to him.
He’s also active on some of the JBL-related Facebook groups.
Feel free to send me a PM.
Wow! That's awesome (and some serious dedication).
About ten years ago, I drove from Pasadena, CA to San Ysidro, CA (about 3 miles north of the U.S.-Mexico border), a 300 mile round trip, on a Wednesday evening to purchase a pair of never used,...
No doubt…
Very much looking forward to this!
FWIW, I used the actual SPL meter function in REW, with fixed frequencies pretty much exactly as you described above, and it worked well in tandem with my calibrated microphone on a microphone boom...
So true. It's best to write down all the settings one uses when trying different configurations, to be able to return to the baseline.
The method that Ian describes above with the SPL meter on...
Fair point, indeed!
Looks like progress! That's awesome.
Just a thought (if you think you might display these in an external box in the future): if you don't like the look of bare wire, you can always mount the...
I think it's an interesting idea and something that you could look into in the future, but there are few things to keep in mind.
The switched attenuators you're showing in the photos are...
Oh, and Happy Holidays to all! It's 1:30pm here in California and the Christmas Eve festivities are kicking off soon.
You're gonna have some fun next week soldering them all up! I find it therapeutic, personally.
I put new O-ring gaskets on my 4344 drivers as well - including on the 2307 horn mounting interface.
The wire at the link above will work great. As you and I discussed previously, I typically use 18 AWG for the HF and UHF, 16 AWG for the mid (feel free to use 18AWG, though), and larger speaker wire...
Yes, future revisions will target a 16 ohm L-pad on the HF filter to avoid issues for those who want to use the stock L-pads on the 4341/4343. Trying to make the boards universal was an ambitious...
Ian - VinylGroove has new 16 ohm L-pads for the MF section, and the filter is tuned for that (you and I looked at this - it's those same values - and thanks again for catching that mistake and...
I support this configuration... on the condition that you use that exact battery. LOL!
I replaced the L-pads in my 4344s before I went to charge-coupled networks in an external enclosure. It is possible to get the OEM look, flush with the front baffle, but it requires the new L-pads...
Rob - I'm glad you brought up 250V vs. 400V capacitors, as it's something worth discussing.
From a technical standpoint, it's absolutely true that a 250V capacitor is more than adequate in...
All valid points.
I agree that this information would be useful in published form, and I do plan to put those cost estimates on my website in the upcoming FAQ pages. I applaud VinylGroove for...
Replying a little late here, so this response will be somewhat multi-faceted...
I agree with all of the sentiments in the last few posts about bi-amping. It really does make a huge difference (my...
Always feel free to contact me via email (email address listed in the user manual) or through the contact page on the site, and I'll be happy to provide any guidance you need.