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I would love to see the evidence that 'microdynamics' are somehow lost when one moves to solid state. Perhaps what the author actually meant is that there are various degrees of even order harmonic distortion that are superimposed on the musical signal that are absent in solid state?

Just don't modify that Dyanco like Fremer did in Stereophile (July, 2000). BTW, the 400 is a better amp.

Didn't your father teach you about protection? Mike, if you like the sound of tubes and what you're using, then by all means, use them. But for me or anyone else to explain to you why you like what you like, well that's just too difficult. Suffice it to say, I think you've been presented with...

That's a mighty big maybe sticking it's hand in your wallet and playing with our wishes. However if your coupling caps are crap it will mess up your frequency response. That'd be the first place I'd look. But like I said, there are creative ways to monitor your player's performance. Call it an...

i agree. certainly good enough, provide you're in range, to determine if something's amiss. you see, my way of thinking when replacing things is a) if it's defective b) if I really know it'll make an improvement The first can be easy to determine. The second is not so easy and certainly...

Well it really depends on the value of the components you want to measure. It's just my opinion, but when you're looking to sink as much in parts as the original thing cost, it just sounds like a good idea to have decent tools. Kind of like modifying a car. Gonna do it with ebay Chinese $20...

Thank god that hum's gone Yogi. Nothing worse than throwning good money after bad. Kind of like bringin a girl home that used to work at the Chicken Ranch, buying her new clothes and thinkin that you're special, then finding out she's still works at the Ranch. No, it's not a personal story...

Well Yogi, discussions of phase errors/shifts certainly require going into a lot of detail. Just to touch upon one aspect one can have a phase shift that's linear phase. That amounts to basically a delay. So long as this shift is happening in both channels it's inaudible. A real life example of...

Well the DF for most well designed amps is really a non-issue when it comes to the control of the woofer as that's really more dominated by the units suspension and of course the inherant resistance in the voice coils. Far as phase goes it starts getting screwed up or altered during the...

Yeah, it got hijacked! Do you really think Pass could pick his amp out if he didn't know what it was? Check out this link for a couple of people's effort along those lines.

I seem to recall that Kef's had a fairly flat impedance curve at one time. Whether that's still true, or whether my memory in general has failed me on that recollection, well I just don't recall. Sounding more like Bill C :D I think! Just in a very general kind of way Michael, utilizing a...

Well I must've missed it earlier on Lee's amp. The DF is invariably specified @8 ohms so we've got... DF=11=8/(output impedance)=0.73 So if we consider that DF has not so much to do with control of the woofers but more to do with imparting an equalization to the output signal that both...

For the 20's that you've got we have: Output impedance 8 Ohm ergo DF = 8/8 = 1 there'll be a 'wee bit' of spectral contouring :)

Those are hard specs to find Michael, at least the DF. As a general rule, I'd surmise the DF goes down as the amount of negative feedback goes down. Given that NF is like garlic to vampiric audiophiles, likely they'd be willing to accept more coloration for it's elimination as a matter of...

Ohhhhhhhhhhh.....Lee!!! Monster's gonna sue your ass for using their name in vain! It's so hard to find specs on tube products. Since the Audio Research is a relatively low negative feedback unit, let's assume a DF of about 16. Since it's typically specified by the ratio of a nominal speaker...

You know guys, I'm almost surprised that we haven't seen products come out that model various tube characteristics and interface with solid state units. In the pro world, there's a host of products out there, where a person with a solid state amp and an electric guitar can literally choose from...

I'm not arguing preferences Scott, simply pointing out some behaviour characteristics of many tube amps with perhaps the premier poster child being the SET amp. I can't comment on what your Audio Concerto is doing. For starters even the manufacturer's website says something like "Spec's coming...

and if you want justice, you'll invite the people who mixed the recording over while they stand barefoot on a wet carpet and toss them a high current source :D

What do you think of using your existing setup Jonathan and spending only a few dollars to get your SS setup to behave like a tube amp? Or what about inserting a Behringer Ultra-Q into the signal path. That's got tubes and a couple of Parametric Equalizers. Far as I can tell, it's strictly...

So an expensive SET amp gives you what? 40 watts of speaker dependant output shaping? Understand Scott, I'm not arguing against one's preference. My comments have to do with issues of accuracy and fidelity. How's about a separate thread? The site's gotten a little stale and controversy is...

Well Scott, I'm not saying you can't have a preference for them or for the effects that they have on the signal fed to them. frequency shaping of the resulting audio spectrum by a high impedance output of SET is not likely something that's going to be talked about by the people putting these...

well we musn't forget all the ways euphonics creep in there now like high output impedances that can exist on the amp end such that the output of the amp follows the countours of the impedance curves of the speakers. that essentially takes the effect of sticking in an equalizer into the musical...

You can always add a resistor and a diode and fake the tube thing ;) Somehow I think these teens have checked these things out Yogi.

focus on girls and having a good time.