ngjockey
Responses from ngjockey
| Isolation transformer - does it offer protection Once found some retail site that claimed 8:1 spike reduction. Even had a picture of an oscilloscope for evidence. Never seen that confirmed by a manufacturer and doubt they would even test for something that was not it's intent. Seems logical that... | |
| What is Phase Angle and Shifting? Mrtennis: Forgot to mention that dipoles have rear dispersion that's out of phase and can react with the room in many ways. For myself, it's most noticeable on vocals. | |
| What is Phase Angle and Shifting? Mrtennis: Not familiar how ESL's compare with their integral transformer but magnetic planars have no voice coils and primarily resistive across their range and have negligible phase "distortion". That, in itself, doesn't make them ideal but I've ... | |
| What is Phase Angle and Shifting? Not just the crossovers. the voice coils and construction of drivers have inductance that affect phase. I was building Bessel filters 30 years ago because of group delay characteristics. Then, there's impulse response ...Huge, complex topic. Somet... | |
| Using a shore power isolation transformer at home? Seriously, mechanical? How Victorian. A modern classic. Hope you like cleaning and replacing brushes. Do you have to grease it or just refill the whale oil? | |
| Using a shore power isolation transformer at home? There are other methods of regulation but "servo" just means some kind of feedback and not sure what that means here. A household thermostat can be called a servo.And not all tap switching implies a stepped sine wave, if it's done at half cycle. | |
| Using a shore power isolation transformer at home? http://www.contractorsav.com/article/2006/11/07/ac-powerI point out this article with the caveat of who it's written by, what they sell, and when it was written. It's sincere but an obvious bias in the tone. In the regulation section, the last typ... | |
| Using a shore power isolation transformer at home? Except for the dedicated lines, not really. | |
| DH Labs Air Matrix IC:: Level of sound quality? Replaced my XLR DHLabs with Ultimate silver series C4 when I needed something longer. The DHLabs were good but the Ultimates were better in my system. $ 65 to $90. Essentially, just dressed-up mil-spec/aviation wire that I couldn't build for any l... | |
| Using a shore power isolation transformer at home? Just attach both grounds together with the shield wire, if it has one. In the case where primary and secondary are on opposite sides of a transformer, both grounds screw down to the casing on either side. If it's metal encapsulated, that should be... | |
| Using a shore power isolation transformer at home? I've looked at them a couple times but have never purchased. Remember one brand that advertised a 3.6 KVA unit at nearly half the weight of their 3.8. Never been quite sure if they are shielded (more noise rejection) and the plastic enclosure woul... | |
| Is the most efficient speaker the best speaker? Timlub, The 84 to 90 dB drivers would NOT be pro drivers. More typical of brands like Scanspeak, Morel, etc. Mentioned "pro" to illustrate higher sensitivity drivers in a separately listed category.You're right about the gain for 4 ohm. Wasn't bei... | |
| Is the most efficient speaker the best speaker? Been looking at drivers lately.Let's say we want 30-40 Hz capable woofer. Generalizations. Argue about speaker specs, excursion, quality and range in another thread. If you don't believe me, look at the pro drivers at Parts Express.At 84 dB W/m, t... | |
| Integrateds with DAC? If you're only using digital sources, the Emotiva XDA-1 looks interesting on paper. Not digital volume control, digitally controlled volume. And it has blue lights ;)http://emotiva.com/xda1.shtm | |
| Benchmark dac - why such diverging opinions? Once had a friend try to show off his Benchmark DAC in my system. Considering how similar both our systems are, except the speakers, he was shocked at how different it sounded. We tried different settings. Nothing about the design should be finick... |