timlub
Responses from timlub
| Loudspeakers have we really made that much progress since the 1930s? Hi John, I assume that you started this thread for the sake of discussion, you know the drill as much as anyone.... So, I'm not going deeply to leave room for discussion out there.... As you know math is math. That and how a loudspeaker works... | |
| ???Why The HUGE Discrepancy in Sensitivity Ratings??? I've been offered to be encased in concreteTim | |
| ???Why The HUGE Discrepancy in Sensitivity Ratings??? I am very guilty of using the term sensitivity and efficiency interchangeably and really they are, a more efficient speaker will play louder than a less efficient speaker, but in the truest sense... Loudspeaker efficiency is defined as the sound f... | |
| ???Why The HUGE Discrepancy in Sensitivity Ratings??? The only fairly accurate way to measure is 1 watt 1 meter anechoic... even then, many speakers are not adequately impedance compensated. As posted above... 1 watt @ 8 ohms is 2.83 volts, 1 watt @ 4 ohms is 2.00 volts.... a big difference in pow... | |
| What makes an expensive speaker expensive Phasing is a whole other subject.... EVERY speaker has phase shift... Period. 6db slopes help minimize it. 12/12 slopes can be 180 degrees out of phase and the designer simply flips the positive & negative on 1 terminal bring phase back around... | |
| What makes an expensive speaker expensive Hi Pete, thanks for posting your name... So, If Someone isn't selling a design commercially then??? Send Your un named Largest named Designer this thread. Get his response. Hmmm, do you really expect anyone to give you their designs. I'd be g... | |
| What makes an expensive speaker expensive Hi ctsooner, Well, Ok, in many perspectives, you are making the point of the entire thread... materials like ceramic and diamond coated drivers, Kevlar or magnesium, etc are very expensive, but that isn't where you where going with paper, you hav... | |
| What makes an expensive speaker expensive Quote: "Breakup can be very well damped and smoothed, but the fact remains that the cone is in breakup."If the Break up is controlled or Eliminated, is it really in Break Up? In an average woofer 4 to 15 inches, any material will have an issu... | |
| What makes an expensive speaker expensive I've read this thread, its been an interesting read. Building speakers for so many years, I've experimented with many cone materials.... a lot of what has been said about cone break up on paper cones is valid to a degree, but in so many ways, q... | |
| subs for LFT-8bs Moving more air with a sub will certainly make a minor difference, but any way you look at it, your speakers are like 83db sensitivity. Anything playing that has a lower gain, is going to give you some issues. If you are truly happy with the o... | |
| Cartridge Recommendation for Dual 1229 I guess that I've gotten old, I used to sell this table new.... I bunch of Dual models... Even though this arm will accept a whole bunch of cartridges, it is most happy with a high compliance cartridge... | |
| ADC SSX IV Cartridge... Any Info Out There? Well, there is one for sale on Ebay right now, it says that it is a MKIII body. I went looking again and found that it is similar to an XSMIII.... So many ADC cartridges and so little info. Thanks again Raul for your response. | |
| Why are so many companies like harbeth making old speakers designs and charging thousends? Hi Marty, "Active digital crossovers (and room correction) are a more recent innovation, so there's been some recent technology developments out there, but Tim's point is mostly taken" Back in 1980 we were experimenting with the stk086 chip u... | |
| Why are so many companies like harbeth making old speakers designs and charging thousends? I have kinda stayed away from this thread, but as I think it through, hopefully my input will hold some merit.... "Why are so many companies like harbeth making old speakers designs and charging thousends?" Thousands.... Really, in the big pic... | |
| Caps for the Crossovers on Bozak Symphony B-4000 Hi Andy, Hopefully you found someone to do this. If you haven't and have an interest, PM me. I could probably do them in a couple of weeks. Tim |