atmasphere
Responses from atmasphere
| Triode versus Ultralinear/Pentode Pubul57 is correct. Some amplifiers pull it off quite well- others don't. I rebuilt a Marantz 9 from years ago- the amp sounded OK on Pentode, but really, triode mode was the really useful mode if you were listening seriously. Most triode amps tod... | |
| Triode versus Ultralinear/Pentode Pubul57, Merlins don't need a lot of power. We have had many Merlin customers over the years using our M-60 and I never hear about power issues. If you can get a triode amp that makes at least that much, unless you are in a very big room you shoul... | |
| What exactly causes clicks and pops on vinyl? Something else that helps is to avoid phono sections that employ any sort of loop feedback. A zero feedback (passivly equalized) phono preamp will tend to make less of the ticks and pops fed into it. I have seen it be the difference between 'annoy... | |
| Triode versus Ultralinear/Pentode Lloydc, your amplifier might be a good example of what I meant- that even though there is some advantage of the 'triode mode', that mode is not optimized in the amplifier in order to allow for the switching in the first place. Were it optimized, t... | |
| Tube amps have a signature sound Chris, its on-topic as far as a signature sound is concerned, on account of the fact that tube amps use far less feedback or maybe none at all compared to transistors. I am referring to global or loop feedback.Local feedback can refer to loop feed... | |
| tube amps sounding like solid state and vv I think some designers try to get distortion and frequency response to the best that they can, at the expense of other probably more important parameters. Tubes often take a more reasonable stance- 1% THD seems high for a transistor amp but is com... | |
| Tube amps have a signature sound MrT, I interpreted your comments correctly. I want you to understand that I was not contradicting you either. What I was pointing out is that what you were reporting in your post has an underlying design issue, and what can be done about it.IOW yo... | |
| Triode versus Ultralinear/Pentode Switching an amplifier from pentode to triode can be a bit tricky inside a single amplifier. The reason is that triodes tend to have a lower impedance than pentodes and so will want to operate at a different impedance on the output transformer. Th... | |
| Are tube watts equal to solid state watts? I think the issue is not that tube watts are any different in terms of power; the issue is distortion. Watt-for-watt, tube amplifiers (in general) make less of the distortions that the human ear objects to. The result is that with a transistor amp... | |
| Tube amp for Magnepan 3.5 with autoformers. Steve McCormick reports that using his amps with the ZEROs to drive 4 ohm speakers sounds better than driving the speaker directly, despite the fact that his amplifiers are easily capable of driving 4 ohms. I interviewed several solid state amplif... | |
| tube amps sounding like solid state and vv Unsound, the funny thing about that is that transistors sound better on 16 ohms too. I agree with you of course :) | |
| Planar close to a rear wall? Quad for example? If its not common knowledge than it should be: all planar speakers need to be a minimum of 5 feet from the rear wall!Any closer results in tonal colorations, the most pronounced being in the bass. Oddly, the only speaker I have seen that worked at... | |
| Quad 57 stacked v Wilson watt puppy 6/7 Yep- whatever it is if you can't find it look behind the refrigerator. | |
| Quad 57 stacked v Wilson watt puppy 6/7 MrT, are these guys getting on your case?? I thought we had all this sorted out elsewhere :) | |
| tube amps sounding like solid state and vv FWIW the underlying mechanism here is called negative loop feedback. It is a design device that is often used to reduce distortion. The problem is that in doing so, it is not perfect and actually *enhances* certain odd-ordered harmonics that the e... |