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June 14, 2021

Hi AKers... I was active here for a while up until a year or so back.... longer? Still have stacks of 70's and 80's receivers, 50's theater tube amplificators, and enough vintage JBL and EV pro drivers to construct a slightly downsized "Ancient Audiophile" speaker system. Which I intend to do...

Thank You for that, Earl! I just installed AudioTool on my BB KEY2, holy smokes! If I had a tool like that back in the day... Next, a calibrated Dayton iMM6 from Solen for CAD$22. For when you need a sanity check without firing up HolmImpulse or Omnimic or (choose your weapon) on the laptop, or...

It's only wrong North of the equator.

Yes Sir! I have seen a divergence in this thread- those who "get it", and those who *think* they "get it". I'm not tryin to pick on anyone; we all form our preferences from experience. It depends on the "scale" we have experienced. As a live sound engineer who has worked a good number of the...

bimasta said: "Can you suggest one?" (sorry, I get error message when I try to quote) Behringer DCX2496 DBX Driverack PA2 MiniDSP, many versions cheaper analog ones... like Rane, Marchand, Bryston (well, ok not necessaily cheaper)

Twin 10 inch woofers aren't even remotely "big". *ducks* :rflmao: Four 15 inch woofers, now we are approaching "big". :beerchug:

When I had the big Altecs, I had a friend and his wife drop over one day. "We can only stay for a few minutes". Wanna check out some music for a few minutes? You should hear this. "Sure." I think I put on Dire Straits, Brothers In Arms, at moderate volume. His jaw dropped. "Honey, can you get...

I agree completely with the OP's observation, and many of the subsequent comments. I my last house, I had Altec A5 Voice of the Theatre systems, with added JBL 2404 tweeters and EVM15s as subs... I could have those playing in the basement, go upstairs, and it would sound like there was a live...

Nice tidy-up of the list, @wiredbecker :) I tend to leave a messy trail of breadcrumbs. I think Jack went to the Super-Q coil after the original pcb layout was done, when he did the LE14A version... but the Jantzen is a better solution if you can make it fit. <edit> Chris, do you have any of...

That's a nice inductor, but really, it's overkill for the L1 position in the tweeter crossover. It doesn't need that large gauge of wire. It doesn't carry much current. Jack Gifford spec'd a 0.53 ohm DCR inductor in that position, and the 14AWG coil is 0.19 ohm. That would be nice in a woofer...

The DCR of the inductors is determined by the wire gauge of the winding. A 14 AWG coil will have a lower DCR value than an 18 AWG coil of the same inductance value. An I-core inductor will have a lower DCR value than an air-core of the same inductance value, with the same AWG. I-cores should...

The Celestion CDX1-1745 is a smooth, well-respected driver by all accounts, and the price is reasonable. (at least here in Canada). National dollar-values and stupid trade-war tarriffs can have significant impact on our hobby plans. I was looking at Eminence N151M-8s for use in some mini 2-way...

The universe unfolds, and Zilch just smiles. He woulda just loved this exercise. Happy New Year Zilch, wherever you are. <edit> damn, typing that just made me cry.

Gordon, Thank you for sweeping some cobwebs out of my old brain with your clear explanations re: mass and stiffness. So I guess the dominant factor in the Qes difference is that the E120 coil has more turns *in the gap* ?

Qts (closed box) is still pretty low, but, I'm thinking about what EarlK said. But still, you had way better measured results in that box with another woofer, and confirmed with your existing measurement setup, right? The exercise continues... Try the woofer that had "good bass" in the same...

Welcome to AK! that Pioneer SX 424 speaker socket looks like it would take a Cinch-Jones 304 plug. $5-$9. There's a bread crumb for you :)

G'day Shintaro54. You'll find a lot more here than a used pair of AR-5's. Well worth the price of admission. Welcome here, enjoy your stay.

Welcome to AK!

Well, I used to drive Cummins, but now I drive Detroit Diesel DD15 every work day (Freightliner Cascadia) :smoke: Welcome aboard, enjoy your new speakers, and don't be afraid to ask questions!

Grüß dich Gott. How lazy of me.

Hmm. Seems to me I've gone skiing/tobogganing not far outside Munchen in early January. But the weather has always been milder there than here in the snow-covered hills nestled in the midst of the Great Lakes in southern Ontario, Canada. And in spring, spargel (sorry, don't have a German...

Not just Europe. The Fatherland! :) see my reply to Jeff (visiman) :)

Welcome back, Jeff! Earlier this century, I spent the better part of a year in Munchen, (Munich), over a 4-year span, and a month or so in Darmstadt, and a lot of time on the Deutsche Bahn doing weekend visits to places like Heidelberg. My great-grandfather was born in Germany. Love the country...

The full-range guys love high-Qms drivers :D