almarg
Responses from almarg
| Separate conductors for separate frequency ranges in cables Is there anyone out there that can more fully explain what PS Audio is trying to accomplish with this cable construction? I certainly can't, despite having an extensive background in electronic design. What can be said with certainty, though, i... | |
| Amps Atma-Sphere M-60 Mono blocks OTL design +1 to Jon's wise counsel.Ozzy, regarding the DEQX calibrations, to be sure it's clear I was envisioning that in addition to the effect of the amp change on the balance between the main speakers and the subs, the DEQX measurements (and the resultin... | |
| Impedance matching device I agree with the others, that what you are describing sounds like a gain difference, not an impedance compatibility issue.However, according to this datasheet the 2.5i version of the preamp has a specified output impedance of 200 ohms, the same va... | |
| Short Lifetime for 6NS7 Tubes Hi Lowrider,It is apparently far more common for vintage 6SN7s to be microphonic, or to become microphonic, than for many or most other types of small signal tubes that are commonly used in audio equipment. There was a post here a year or two ago ... | |
| home circuit breaker - good idea or not to increase to higher amp fuse? If the rating of the breaker were to be changed to 30 amps or more, in addition to a wiring upgrade the outlets that are fed via that breaker would have to be upgraded, to outlets that are rated to handle that amount of current. Otherwise a code v... | |
| Tube Watts Vs. Soild-State Watts? I’ll have to go on Ebay and get some spare QB5/1750 tubes for it. I see that some sellers on eBay are offering GU-46 tubes for relatively low prices, and are indicating that they are equivalent to the QB5/1750. However the GU-46 is specified as be... | |
| Tube Watts Vs. Soild-State Watts? Great call on the identity of the amp, Charles.Based on its technical characteristics and on what I’ve heard about NAT products I too see no reason to doubt that it will work out well with the DIs. 333Jeffery, just be sure to keep in mind that the... | |
| Audio Technica ART9 sounds awful Consistent with comments by some of the others, my ART9 sounded good right out of the box, and never sounded awful/terrible/bad/defective (to use some of the adjectives that have been stated above) at any time during its breakin period.Also, I had... | |
| Tekton Double Impacts Mac48025 3-6-2017 I’m told the impedence curve also influences how hard a speaker is to drive? The flatter the impedence curve the easier it is to drive? Yes, generally speaking. Although if the impedance stays relatively high at most or all frequ... | |
| Audio Technica ART9 sounds awful In addition to the tubby bass and the shifted soundstage, is imaging vague and diffuse? If so, it would be suggestive that + and - may be reversed on one channel, either within the cartridge or in your connections to it. A means of checking for ... | |
| Tekton Double Impacts Specifying speaker sensitivity based on 2.83 volts rather than 1 watt seems to be pretty much the norm these days, among manufacturers and also among reviewers who provide measurements (e.g., John Atkinson in Stereophile, and measurements performe... | |
| Quality of outlet not directly powering equipment important? Now, outlet 5 remains a contractor POS outlet. Its technically past the system, but being that this AC, and not DC, wouldn’t it technically also be part of the AC chain feeding the stereo? No, it wouldn’t. Assuming that nothing is plugged into out... | |
| Tekton Double Impacts In case anyone is curious, Mr. Alexander's patent that is cited in the DI description can be found here. Although after reading its 14 pages I'd have to say that it doesn't provide a great deal more information than what is stated at the Tekton w... | |
| Parallel SET with sufficient power George, are you sure that TubeGuru amp actually has a 4 ohm tap? I couldn't find a rear panel photo, but I would interpret this photo, which is one of those shown for that amp at the TubeGuru site, as suggesting that it may have only a single out... | |
| Cables for rear surrounds Anyone think 14g would be better? Yes, I do. Depending on which of the PSB speakers that are listed in your system description you would be using for surrounds it appears that their impedance is either 4 ohms nominal, or 6 ohms nominal and 4 ohms ... |