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Everything posted by jwgorman

  1. I need adult supervision. I do have a pair of hf1440s sitting around waiting for something.
  2. I shipped Cornwalls to Florida before, 4 years ago. I shipped them Forward Air and it was like $200 ish. I padded them, palletized them and ratchet strapped them and they made the trip just fine. I think these guys are almost 150lbs each. So I would guess $400 from Forward Air near me to Forward Air near you. I think it would be two pallets. You would need help getting them into a vehicle. I can deadlift 400+ pounds and lifting one of these guys is sporty at best due to their size. The local FA guys would forklift them into a truck for you but you would need help once you got home.
  3. These are still available. The cabinet make who built them talked me out of repurposing them. You are welcome to stop by and audition them.
  4. Ha. Oh man. Good old days 😀
  5. Last bump before repurposing these. If you like to experiment, these guys are perfect.
  6. I think that would probably be worth a try. I have a luxman 550AXII and it got along well with lascalas stuffed into corners. My buddy has a Schitt 20 watt amp and it drives his 96db/w/m speakers to very high spls and sounds good.
  7. Thanks. Yes, a lot of people would. My son is a USAFA graduate. I’ve made that drive many times.
  8. Also, if someone would prefer they come with Faital 15PR400-4 woofers, I can swap them in. And you are welcome to sit down and listen to them. I could rig them with Faital HF1440s for a little more money, but you would need an active crossover or some serious filter design chops to make those sound good.
  9. Thanks guys! I think if someone buys them they will be very happy, their kids will be happy, their grandkids will be happy…
  10. Actually I’m not certain they are the most overbuilt Cornscala speakers but I had a professional cabinet maker (as is that’s what he does for a living) build them from 3/4 baltic birch and the are heavily reinforced and braced. I have used them for experimenting with drivers and crossovers for the last 3 years. They are currently loaded with Kappalite 3015lf_4, hf146 and 18x10zxpc horns. There is a shelved rectangular port, nearly identical to a Cornwall. There is a bit more internal volume and the F3 is 38HZ. They are passively crossed at 600hz (2nd order low pass and 3rd order high pass) but they are made so that you could load different horns, remove the risers, install nearly any 15” you wanted: they are highly configurable. The motorboard is 1.5” thick (with an additional 3/4” ring where the T-nuts mount) and there is bracing along the sides that tie the front and back walls together and a laminate cross brace that ties the sides together. The bass cab is lined with denim and poly mat and the top horn cab has a platform to mount a brace if you wanted to go back to a Faital 1.4” horn. Even the crossovers (one in the bass cab and one in the top hat) The finish is just Watco natural so they could easily be veneered. I am posting links to pictures below. The pictures (if you follow the link) show building and various iterations of these speakers. They are glued/screwed/tattooed to withstand anything and are in excellent shape. I am selling them for $2500 and I live near Cedar Rapids IA. https://www.flickr.com/photos/195256178@N06/
  11. I need to keep up. I still look at Fortes as new fangled. Looks like JBL does use a selector that allows switching in various cap values.
  12. Sure. I was talking about the cap in parallel with the series resistor of the attention circuit.
  13. Thanks. I was actually aware of this. It makes sense that, given the correct capacitance, that would help bypass hf attenuation. Do you think it could be as simple as a bypass cap in the attenuation circuit? Or maybe several caps connected to the hf and uhf boost knobs on the front panel?
  14. Ha.I sure would like to see the uhf circuit. And the hf circuit.
  15. That good to know. I’m very curious as to the passive correction done in the 4367. From about 8db down at 10k to essentially flat. I have no doubt Roy has this figured out but I would like to know how.
  16. Klipsch’s networks (the classics that have schematics on this forum) do pass specific frequencies to drivers, and by increasing the slope of the crossover they can effect, to a limited extent, how much high treble comes out of a K77 (for example) but beyond that there is no eq. If you look at the raw frequency response of the JBL driver/horn in the white paper I linked to they have provided considerable eq to get their driver/horn flat.
  17. Agreed! Any idea how they passively eq’d the compression driver/horn?
  18. I found a JBL 4367 white paper today that has piqued my interest in a couple things. First I should mention that it’s really more of a white paper lite, something the marketing guys worked out with a couple engineers. But it’s still a good read. The first thing that caught my eye was the biased crossover using signal power rather than a battery or external source of power. Not sure I understand how they pull this off. The second thing that looked cool was the passive eq they allude to that corrects the raw frequency response of the driver in the horn. The 4367s use differential drive woofers and some advanced compression drivers. If you have a minute please go check it out https://www.jblsynthesis.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwc07f5318/pdfs/JBL Synthesis 4367 White Paper.pdf
  19. John your project looks awesome. I’d love to hear a pair of big heritage Klipsch with that mid/tweet.
  20. Yes. That’s true. The 2” drivers beam even worse.
  21. I have the HF146 crossed just north of 650 HZ. I don’t think I need a tweeter in my living room. The 1.4” drivers will eventually beam as the frequency goes up of course but I am fine in my chair. Honestly it was super easy to integrate these two drivers. Do you have a project in mind with the HF146?
  22. They do sound very good. I like them crossed over 1k.
  23. I am happy with them too. I have run N314x and HF146 drivers with Eminence adapters.
  24. I never imagined pa speakers could image. I didn’t know that was a thing.
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