Do you prefer SS or tube? Why?
- Thread starter bluegrassphile
- Start date
a.wayne
Well-known member
I think I have seen you.... you are the one called Mr. Tweezers, aka Magnifying Glass Required.
Ha ha ha ....
a.wayne
Well-known member
One thing I would love to know is what gear you guys are actually using in your systems. I like to review peoples equipment in their signatures
I knew MEP put you up to this , guy cant get over my equipment ..
Randy Myers
Well-known member
KeithR
Active member
It is misleading to quote power on SET amps without distortion as it rises with wattage and can easily be 5%+ near clipping. Ideally you want to be only using a few watts on a 45-watt SET amp....which I'm not sure how Vlad claims 45 watts when most 6c33 tube SETs are like 18-watts but I digress.
What's more important is this thread is about what "can work" according to some calculation (which excludes impedance shifts conveniently) instead of what "is best." Cranking up volume or even the volume control position has little to do with how much amp one needs.
Randy Myers
Well-known member
He uses two 6c33c's in parallel in each mono block. Here is from The Absolute Sound review (and to those who believe that reviews are influenced by advertising I would respond that I do not believe Audio Mirror ever advertises).
"[FONT="]Audio Mirror’s Vladimir Bazelkov is no stranger to the 6C33C-B triode having started his electronics career in Bulgaria some 25 years ago. Based in the U.S. since October 2000, he has continued to refine his designs—to [/FONT]wit, the 45-watt amplifier under review sounds big and powerful and expands the reach of SET designs to even moderately sensitive 88-to-90dB loudspeakers. I’ve always been skeptical (and you should be as well) of manufacturer claims of 8-watt-amplifier compatibility with sub-90dB loudspeakers. Such a pairing may be played reasonably loud but lacks sufficient dynamic headroom to generate convincing scaling of dynamic peaks. No problems here for the Audio Mirror SET monoblock, though it really shines with higher sensitivity (94dB or greater) loudspeakers. Reproduction of dynamic peaks, in particular the ascent from loud to very loud, is most impressive, exceeding in this regard the performance of all other SET amplifiers I’ve auditioned to date.
A key design factor is the use of a parallel pair of output tubes, thereby significantly extending power delivery, especially into difficult loads. Vladimir experimented with a variety of biasing schemes, including grid bias, resistive cathode bias, and a mixture of both cathode and grid bias. None of these approaches was able to generate the combination of musicality and dynamics he desired. He finally settled on a nifty MOSFET-based current sink for cathode bias, capable of sufficient headroom to accommodate powerful dynamic peaks. What I find most appealing and refreshing about all this is that Vladimir put his ears into the design process at each critical juncture rather than relying strictly on measurements or standard practice."
a.wayne
Well-known member
Isn't that what Mike usually recommends for Avantgarde's!
High powered amps are a waste for sure ...
a.wayne
Well-known member
Isn't that what Mike usually recommends for Avantgarde's!
life begins at 1KW
still-one
Active member
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Randy Myers
Well-known member
Perfect .... and I assume I have to trade my Benz for one .... well maybe both of our Mercedes...
.... and I assume I have to trade my Benz for one .... well maybe both of our Mercedes...
mep
Well-known member
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I
Not true, but when people like to lecture people on their system and what they think is wrong with it, curious people want to know what these people are listening to and the room the gear is in.
I knew MEP put you up to this , guy cant get over my equipment ..
Not true, but when people like to lecture people on their system and what they think is wrong with it, curious people want to know what these people are listening to and the room the gear is in.
a.wayne
Well-known member
Begins at 1k and is Bliss at 6000w into 2ohms with Boulder or D'Agostino.
Haa ha , Go big or go Home ....
a.wayne
Well-known member
Perfect
If that new rail ever gets built you wont need the merc’s ..
a.wayne
Well-known member
Aaand... you're an idiot.
Amplifier has a gain of 24dB and the max output voltage from the source is 0.87V. Enlighten me on how I clip the amplifier (that is if you can).
No personal insults please. The admins are receiving complaints.
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That kind of attack is unwarranted and certainly unnecessary. It will not be tolerated again. I am sorry I had to be alerted from another member. I am frankly very disappointed. Watch yourself.
Aaand... you're an idiot.
Amplifier has a gain of 24dB and the max output voltage from the source is 0.87V. Enlighten me on how I clip the amplifier (that is if you can).
That wasn't an attack, it is my genuine opinion of him, you can't have good opinions about everyone.
But I want Wayne to prove me wrong, in which case I'm ready to apologize.
Let's say I have a 50W amplifier driving some 87dB sensitive speakers (clip city). The amplifier has an input sensitivity of 2V and the max level of the input signal sent from the source driving the amplifier is 1V, which gives an adequate peak SPL for the listener.
Wayne insists that the amplifier is still clipping because it's only 50W. Explain how does clipping occurs if the input signal is kept lower than the signal required by the amplifier to reach full power. Please no incoherent smart ass reply or irellevant links.
But I want Wayne to prove me wrong, in which case I'm ready to apologize.
Let's say I have a 50W amplifier driving some 87dB sensitive speakers (clip city). The amplifier has an input sensitivity of 2V and the max level of the input signal sent from the source driving the amplifier is 1V, which gives an adequate peak SPL for the listener.
Wayne insists that the amplifier is still clipping because it's only 50W. Explain how does clipping occurs if the input signal is kept lower than the signal required by the amplifier to reach full power. Please no incoherent smart ass reply or irellevant links.
atmasphere
Active member
First I want to thank you for the conversation we had earlier on this thread. Through them it became apparent that my viewpoint was too simplistic and consequently erroneous.
Second, I am a moderator on another site. It is quite apparent from your post above that it was indeed a personal attack, were it not there would be no need to apologize, plain and simple. Nearly all sites use the same rules; I've had conversations on this topic many times. The principle to use that will keep you out of trouble on nearly any site is 'attack the post, not the poster'. You can say something like 'that comment was idiotic and ridiculous' and get away with it but that won't wash attacking another member on nearly any site. Mind you, I am making no attempt at moderation here- what you do is your own business; I'm just explaining how it works.
Regarding your comment about the clipping, the means to clipping is that the source can't be trusted to put out only 1 volt. Since all Redbook sources put out more than that, we have to assume that the 'source' is analog... If so it could easily be making more than 2 volts or more on peaks, even if its supposed to only put out one volt at reference level. Of course if we are only playing sine waves then of course you are correct, but I for one don't know any audiophiles that play sine waves for any length of time.