atmasphere
Responses from atmasphere
| Balanced versa single-ended Balanced operation does indeed offer lower noise as well as greater interconnect cable immunity. You are not likely to get all that with a passive system though- part of the balanced standard is that it operates at lower impedances, something that... | |
| Help with finding ultra-transparent pre-amp The issue with the Wadia has been that while its a great player, the volume control gets you into trouble. In basic terms, its no good below about 85 on the display- you loose too much resolution. So to get the best results with it you have to hav... | |
| Power amp for Reference 3A speakers? Our customers have always reported good results with the Ref 3As. They are very tube friendly- you won't have any trouble finding a good amp for them. | |
| Ultra high resolution To get resolution without glare getting rid of global negative feedback is going to be a good first step. But- to do that and insure low distortion, the amp will have to be class A as well. A simple signal path helps; without feedback you don't ne... | |
| How am I frying all my amps? Oscillating? Help Either the preamp has a noisy (dirty) volume control (Radio Shack tuner cleaner could sort that out quickly enough) or you have DC on the volume control too.The DC levels are not enough to trip the Classe protection circuit (I am assuming it has o... | |
| How many People own Working Reel to Reel Decks? I use my Ampex for recording on location, recording as a mix-down deck from 8 channel to 2 channel, and playing the masters and pre-recorded tapes.When doing direct recording I use a set of Neumann U-67s direct-in. I like to bypass my preamp when ... | |
| How am I frying all my amps? Oscillating? Help Leoturetsky, did you try a different speaker cable? I doubt the cable is an issue (I've used them for years) but its best to eliminate as many variables as you can. | |
| How many People own Working Reel to Reel Decks? I run an Ampex AG-440 transport with 351 electronics. | |
| How am I frying all my amps? Oscillating? Help If you suspect the preamp has DC at its output, that is where you should measure for it. Some amplifiers have an input coupling cap and many don't so there is no guarantee that you will read DC at the output of the amp just because there is DC at ... | |
| How am I frying all my amps? Oscillating? Help Leoturetsky, in this we have narrowed it down substantially. I'll be surprised if it is the speaker cable, but I would not let that stop me from trying a different one.If the cable has no effect, the simple fact is you have had a run of bad luck, ... | |
| How do autotransformers affect sound? Arthur, FWIW the ZERO (zeroimpedance.com) has a very low turns ratio as it steps from 16 ohms down to 4,3 and 2 ohms. Its a nice problem solver when trying to get a tube amp like a small OTL to drive low impedance speakers. Its also very helpful w... | |
| How am I frying all my amps? Oscillating? Help Leoturetsky, OK- I'm convinced that the RF is not from a radio station or the like. In your testing above, was the digital system plugged into the wall even though it was not connected to the amp?I would indeed try a set of zip cord or similar spe... | |
| Tube smell? There was probably something deposited on the glass. I have seen this with NOS tubes many times. If I were you I would pull the tubes and wash them carefully so that the glass is squeaky clean. Use only the slightest amount of dish soap. Avoid get... | |
| How am I frying all my amps? Oscillating? Help Leoturetsky, I am surprised that the term 'RF' has not arisen before now! You are describing classic RF interference issues. I doubt very much that the Goertz cable is responsible for oscillation in three different amps. A speaker cable that can c... | |
| How do autotransformers affect sound? what you're describing is simply the tendency of certain topologies to present non-linear loads to their preceding stages. If this is the case, then how is this substantially different than a tube output stage running in class A2 or AB2 whereby gr... |