atmasphere
Responses from atmasphere
| Help me choose an Audio Research preamp/line stage (Please?) I have heard that Vandersteen's like no negative feedback. @_rossbower The speakers themselves don't care. I think Richard (Vandersteen) hasn't heard an amp using feedback that does it properly. Feedback in itself is good, unless its poorly app... | |
| Balanced/Differential tube preamplifier recommendation? atmasphere really now? Is the IR sensor built into the preamp, and all that needs to be done is for a remote to be bought separately? Or do I need to buy a unit that is custom ordered with a remote receiver? @thought9 If its got a remote instal... | |
| 300b lovers @donsachs Unless the power transformer is replaced, I think its a bad idea to drop in a board using 6SN7s as much as I like that tube. 6SN7s have a 600mA filament; running 4 of them is 2.4 Amps! The transformer would burn up in due time. Yes, you... | |
| First Tube amp suggestions @tritube Looking at the impedance curve that @hilde45 provided, its obvious to me an SET will not do the job. You need an amplifier with a low output impedance, otherwise your system will have colorations. SETs have a high output impedance. If yo... | |
| Matching the cartridge to the phono stage Most phono pre designers seem to build around 100 ohms, but the SL is an outlier at being both low-output MC and recommending >400 ohms. Interesting. @paulburnett There's actually a standard for phono inputs, which is 47K. A cartridge desig... | |
| 300b lovers From this distance, I wonder about circuit stability. @lynn_olson They were quite stable and reliable. But the circuit is carefully designed around some serious issues with phase margin, which is why you really don’t want to try any serious mod... | |
| Balanced/Differential tube preamplifier recommendation? steakster I've looked at that one. Would be perfect if it had a remote @thought9 FWIW a remote volume control is available for the MP-3. | |
| What are the best GaN Amplifiers available today? However, the majority are still rather sterile and lacking in dynamics. I am wondering what is meant by 'dynamics'. IME, most of the time when audiophiles talk about 'dynamics' they are really talking about higher ordered harmonic distortion. D... | |
| What are the best GaN Amplifiers available today? I’ve determined that the problem with forum anecdotes with regard to amps is that many are lacking a good point of reference. Someone will chime in saying that an amp like the Starkrimson powered their Magnepans or ESLs well, yet this person prob... | |
| Help me choose an Audio Research preamp/line stage (Please?) @_rossbower You do have to be careful with the regulators in the SP10 and SP11. They are easily damaged and prone to oscillation. | |
| 300b lovers McIntosh MC30 has the similar cathode follower driver 12ax7 to drive 6L6 directly. The output tube works in fixed bias in this schematics. Isn't it? Can you explain how the output tube bias is self adjusted? @alexberger Yes. R21 (120K; refe... | |
| Matching the cartridge to the phono stage @ajones82 The Technics SL1200G has a pretty decent arm and the 'table is one of the better ones made at any price. Its weak spot it its platter pad, easily replaced. | |
| Dynaco PAT 4 Pre-Amp ....Why is it Bashed?? Anyone know anything about Frank van Alstine? I have a chance to buy a Pat 4 restored by him and am wondering if that rings a bell with anyone here. Frank has been doing this sort of work for decades here in town. Its likely not the stock circ... | |
| What are the best GaN Amplifiers available today? @yyzsantabarbara +1 | |
| Matching the cartridge to the phono stage @ajones82 One of the issues with the Rega arms is an adjustment called VTA is tricky or impossible to set, at least the ones I've seen. But if you use a Rega cartridge its spot on. IMO if you have a Rega arm a Rega cartridge is your best bet. If y... |