almarg
Responses from almarg
| How to diagnose the need for room treatment? Al: the speakers are indeed facing straight ahead. I gather beaming refers to high freq, right? Shadorne's [very interesting] explanation seems to suggest beaming in the mids. I have no clue what the dispersion of the mids driver is. Anyway, as Ne... | |
| How to diagnose the need for room treatment? Shadorne -- Thanks for the good explanation and the good reference!Regards,-- Al | |
| How to diagnose the need for room treatment? most speakers display the sharp roll off in the highs above 10K. I think mostly because you are comparing your 'in room specs' with anechoic measurements made by the manufacturer either 1 or 2 meters from the speakers. I wonder if treble beaming c... | |
| Charles Hansen of Ayre saved my love for audio I should add to my previous post that I'm less certain that ferrites would be effective on interconnects than I am with respect to power cords. That is because the inductive impedance they would in effect create in the signal path would probably b... | |
| Charles Hansen of Ayre saved my love for audio In fact, I wonder why the industry doesn't offer a cheap one device solution for blocking this type of noise at the outlet where the computer or other device is plugged in. I would buy one for each laptop.Actually, what are called ferrite toroids ... | |
| No deep bass or highs: VTF or VTA issue? Ian -- My understanding is that the Mint Tractor is customized based on the exact pivot-to-spindle distance of the particular arm. Are you certain that the mounting hole for the arm is drilled in exactly the right place on the armboard, and that t... | |
| McIntosh MX130 FM antenna I looked at a photo of the rear panel, in an eBay auction of an MX130. It looks like it has an F-type (75 ohm) coaxial connector for FM. So to connect a dipole you'd need a 75-to-300 ohm coax-to-twinlead adapter, which are widely available.Regards... | |
| AC Power Cord Wire Gauge This may have something to do with the larger conductor size in PCs. Don't know for sure though.While everything in the quote from Shunyata sounds correct to me, it's dealing with effects at rf frequencies, which I don't think would be a function ... | |
| Am I understaning the effect of imped. matching? In no. 6, where I said "Assuming you don't overdrive the speaker with too much power ...," I should have said "Assuming you don't overdrive the speaker with too much power, or feed the speaker a clipped, highly distorted waveform that can result f... | |
| Am I understaning the effect of imped. matching? 1. True.2. True. A few difficult-to-drive speakers can even dip to 1 or 2 ohms.3. False. I'm not sure that you are properly distinguishing the load impedance that the amplifier's maximum output power is rated at from the amplifier's own output imp... | |
| AC Power Cord Wire Gauge Check out what this EE has to say about power cords.Interesting writeup, Jea. Thanks for calling it to our attention. Pretty much all of it rings true to me. And I think that he really manages to get across the notion that the perspectives most of... | |
| Resource for Power Supply? Digikey:http://dkc3.digikey.com/PDF/T091/2430.pdfBut note that they come in different plug sizes. If 2.1mm diameter x 12mm long is suitable (that's a common size) then part number T860-P5P-ND would do it.Regards,-- Al | |
| Improving on Classic Amps problem is that I have no idea where class C amps have goneClass C amplifiers very much exist, but they are not used in audio because they inherently have very high distortion. They are commonly used in RF transmitters, with their outputs fed into... | |
| Tube Amp,Solid State Preamp. I run the Ayre KX-R with a pair of Nagra VPA's, and very happy with the results.For the price, I should certainly hope so :). LOL.Regards,-- Al | |
| Tube Amp,Solid State Preamp. I need to get to the bottom of this, but on the webpage for my Usher 6381's it says "goes better with SS amps". I assume, perhaps, that it's because their rating (87db/8ohm) isn't the easiest to drive (but not THAT hard, I would think??). Still, i... |