Jump to content
Why become a member? ×

Bill Fitzmaurice

Member
  • Posts

    4,446
  • Joined

  • Last visited

Everything posted by Bill Fitzmaurice

  1. It depends on where it's orange. The heater in the core is OK to be orange. The black jacket around the core shouldn't be orange, that indicates it's lost its vacuum seal. It's nearly impossible to test tubes. It used to be every corner drugstore had a tube tester and sold tubes, but they're long gone now.
  2. Speakers should always be placed with the drivers vertically aligned. Placed horizontal the dispersion angle in the mids is halved compared to vertical, while comb filtering will be present in the highs. On stage in front of the cab you probably won't notice the difference. Out front it will be. If your rig is considerably below ear level it should be lifted and/or tilted back so that you can hear the mids and highs.
  3. I see that view expressed often, but never by audio engineers. You know, the people who invented music reproduction. What is important to music reproduction is well known and has been for quite some time. What we can measure exceeds what we're able to hear by at least two magnitudes of order. It's not our knowledge that's limited, it's the dissemination of that knowledge to the masses. For outfits like Wilson that's a good thing, otherwise they'd never sell a single piece.
  4. Those Wilsons don't sound any better than many speakers at 5% of that price, if not less. They're not marketed to people who know what good sound is, they're marketed to people who equate quality with price and don't know that the one doesn't necessarily give you the other.
  5. Yes, the Donald Trump signature model, expressly designed for those with far more money than brains.
  6. While valves have their place in instrument amps it's not due to how they sound when driven clean but how they sound when driven dirty. For those who think valves are superior for stereo/HT watch this starting at the 3:20 marker. It wouldn't hurt to watch all of it, for that matter.
  7. What would happen if you got a pair of large speakers?
  8. What's to argue about? The price? That's not unusual for a large set of Tannoys. For instance: https://soundapproach.com/tannoy-arden-15-dual-concentric-floor-standing-speakers-pair.html?gclid=Cj0KCQjwh7zWBRCiARIsAId9b4oFs1k_AI6L_Hbt-CZmH0GEnrbix6TJY_CikzCaA5nR3NJzP3kn-swaAuCEEALw_wcB https://www.ebay.com/itm/Tannoy-15-Gold-Monitor-Speakers-in-Brand-New-GRF-Folded-Horn-Cherry-Cabinets-/152963494167
  9. http://www.bcae1.com/xoorder.htm I already explained that there are piezos that have added circuitry to present a resistive load that allows them to be used with a standard high pass filter, although I've never seen one myself, they are that rare. I use high pass filters with standard piezos, but they're specifically configured for piezos and would not work with a dynamic driver. There's also the possibility that those cabs used standard piezos with high pass filters when they should not have. I've seen worse foul ups.
  10. A piezo would not use the same crossover as a dynamic driver unless the piezo was one specifically configured to present a resistive load. Piezos of that sort exist, but they're rare. While on the subject, there are two issues common with most tweeter equipped cabs, those being the tweeters are crossed over at way too high a frequency, often an octave or more, and the high pass filters have inadequate slope to provide adequate protection. IMO tweeters that don't work down to at least 2.5kHz and high pass filters that aren't at least 3rd order as about as useful as screen doors on a submarine.
  11. Depending on the crossover circuit, if it has one, removing the load presented by the tweeter can cause damage to your amp. If you want to ditch the tweeter you need to eliminate all the associated crossover components as well to be safe.
  12. Tweeters don't create hiss, they only reproduce hiss created by the electronics. Replacing the tweeter won't get rid of hiss.
  13. Well , yeah, them too. I did say that it's an industry wide issue.
  14. The tweeters used tend to be less of a problem than the high pass filters used with them. I'd say that's an industry wide issue, not just an Ashdown issue.
  15. Possibly. The one factor which is affected by cone size is the off-axis midrange dispersion. The smaller the cone the wider the dispersion angle. Standing in front of the cab you probably wouldn't notice, standing off to the side your audience might. But if you have the cab placed with the drivers horizontal you gum up the works, because that will more than halve the dispersion angle compared to when the drivers are vertically aligned.
  16. The amount of air shifted can't be determined by the area of the cones. It's determined by the driver displacement, cone area x maximum linear excursion. Refer back to post #18 in this thread. Then ask your favorite speaker manufacturer why they don't post this critical bit of information, but don't hold your breath waiting for an answer.
  17. Don't play through it for a few seconds after powering it up.
  18. Show me one that posts driver displacement and I'll tell you.
  19. +1. If you're going smaller and don't want to lose output you need not only a lot more power but also a driver with sufficient displacement to make use of that power. The drivers that Barefaced uses have the highest displacement available with electric bass drivers. Other manufacturers might, but there's no way of knowing, as they don't reveal their driver displacement.
  20. How much of your closet space is taken up by her shoes? Technology does allow you to go with a smaller driver for the same result, possibly 1x10 but more likely 1x12. However, that doesn't mean going from 250w to 300w. It's more like to 500w or more.
  21. Your 1x15 is more or less the equivalent of a 4x8. What do you think? As for the wife, so long as she's not the one hauling it what should it matter to her what you have for an amp?
  22. That depends on the xmax of the drivers, which usually limits useful power handling to no more than half the thermal rating before speaker flatulence occurs.
  23. The classic term is 'farting out'.
  24. There's no advantage to using marine plywood other than to the marketing department. But if you're going to argue about whether marine plywood is a better material than Baltic Birch you might want to consider one of the other main industries that uses it: Aircraft construction. The Ashdown marketing department should be bragging about useful features, such as building their cabs from 12mm plywood braced so that it works as well as unbraced 24mm plywood, and fully lining their cabs with damping to deliver better tone. But that would mean they'd also have to have those features. I'm reminded of when G-K came out with a new line of neo cabs a few years back, unbraced and unlined. Someone on Talkbass exposed them. G-Ks response, from Bob Gallien himself, was that they had tested the cabs with and without proper bracing and damping and that their testers preferred them unbraced and unlined. Said testers must have been students at Gallaudet University. Numerous owners of the G-Ks added bracing and damping, with about a 95% to 5% consensus that they worked much better after the alteration. Bob Gallien didn't comment again on the subject, but in very short order the cabs got a 'II' designation, this time braced and lined.
×
×
  • Create New...