herman
Responses from herman
| How can my $300 6 year old entry level Rotel sound I had both of those Theta pieces and agree with you; great bass but the treble was a bit too much. There was an upgrade to the dac which made it a IIIa that would help but I wouldn't spend the money even if it is still available. I think these are... | |
| I have dedicated lines, but why is this happening? Dedicated does not mean isolated. Your dedicated lines are tied together with everything else at the power panel so it is very easy for noise generated by something like the AC unit to find it's way into your gear. | |
| Do magnets and electronics mix? The idea of isolation and "zero contact" is wishful thinking. The force that pushes the magnets apart is just as real as the force that holds up a component on any other type of footer. It isn't a magic carpet that just floats there. Even though t... | |
| What's this stuff on the back of a PS Audio Outlet The blue things look like MOV's (Metal Oxide Varistors) They provide overvoltage protection. The black square thing looks like a capacitor, probably for noise reduction. | |
| Bass traps: determining size and how many Short answer, no. Bigger trap = lower frequencies so two smaller ones is not the same.Long answer, first you need to determine what the problem frequencies are and then determine how to address the problem; absorb? equalize? change modes (dimensio... | |
| Concrete tubes: hemholtz resonators? tubes? It is the size of the cavities and the openings that determine the characteristics of these resonators. The shell of the cavities should be inert since they do not play a role as an absorber. The fact that they are concrete would be an advantage b... | |
| Room size and dimensions The Cardas website has some good info on this. | |
| how to regulate the currant and the voltage of the I have no experience with NAD equipment so the following applies to solid state amplifiers in general.I think perhaps you did not fix it. Most solid state amplifiers are self biasing, they require no adjustments. If it is overheating after a few m... | |
| Preamps. Do we really need them? It is my contention that if you have:1. A source with low output impedance, most made today do2. A power amp with a high input impedance, many do, especially tube amps3. cables with low reactance that aren't too long from pre to power amp, I use 1... | |
| Am I imagining things? Don't think in terms of which way electrons are flowing, think about energy. No matter which way electrons are flowing, energy is being transfered from the source to the pre and from the pre to the amp. This is a one way street. | |
| Difference between polarity and phase w/sub You adjust the knob until it is in phase with the mains. You will know this because the bass will be strongest at this setting. It can be done by ear but is much easier with a test recording and a sound pressure level meter. Play frequencies near ... | |
| Difference between polarity and phase w/sub This is one of the most misunderstood concepts for the audiophile, perpetuated because manufacturers such as Conrad Johnson and many others use the terms incorrectly. It is also very difficult to explain without pictures of the waveforms. In a ste... | |
| Is this the best analog has to offer? Try some Galaxy jazz recordings from the late 70's/early 80's (Johnny Griffin, Art Pepper, Hank Jones). Johnny Griffin's "Return of the Griffin" sounds like the band is in the room and they are wailing. If these sound dry and zippy then there is d... | |
| Physical explanation of amp's break in? Aball, back to an earlier question: when you say that capacitors drift, for a given type of capacitor, do they always drift in the same direction? | |
| Upgrade To Conrad Johnson Premier 15? The 15 is a phono stage only, not a full function preamp, |