georgehifi
Responses from georgehifi
| Bandwidth Limitations Of Class D Amps?? Obviously there is a vested interset in a Class D amp and some are not open to what the best amp makers are saying. The only ones that have bought out models of class D along side of their flagship linears amps are the ones who want to make money ... | |
| Bandwidth Limitations Of Class D Amps?? They all have the same characteristics with their mandatory switching filters on their outputs. And the ones that have smp power supplies have even another problem to deal with, regarding noise. I'm not going to point the finger at any brands as t... | |
| Bandwidth Limitations Of Class D Amps?? After listening to them and also measuring them, they do not come up to the sound quality or measurments of good linear amps in the upper mids to trebble. I conceed they are great value for the money. But if one is into great sound and is an audio... | |
| Bandwidth Limitations Of Class D Amps?? -3db means there will be phase shift problems all the way down to 10khz. Why some say the upper mids and top end is hard could mean the the filtering is too high and letting the nasty switching noise intrude.Why some say the upper mids and top end... | |
| Does the volume control effect sound quality? Hi Lacee, I tried to look at a pic of the Acoustat servo tube OTL amps, and it looks to have passive volume controls on the input to them, if so, if you or someone can remove them from the circuit (not just bypassed) then the Lightspeed Attenuator... | |
| To Preamp Or Not To Preamp Vac 30/30 MkII 02-23-13: EndoitThanks so much for your input. I find that Wadia works great at moderate to loud sound levels on the volume control i.e level 20-55 straight into the VAC. At low levels 8-20 I seem to loose dynamics, debth, seperation etc. When I u... | |
| Does the volume control effect sound quality? Here is a good article for those who are interested to see how much their active preamp or passive volume control, is adding colourations/distortions to their sound. It's called the "Ravel's Bolero Test" and you need a CD or LP of it or like it to... | |
| Lightspeed Attenuator - Best Preamp Ever? Hi Chuck,(Lacee) it is good to hear it got there safe and sound, and your initial listening session is positive. Please give us a more in depth review after a couple of more days, I think you will find even more will be discovered.As for your find... | |
| Does the volume control effect sound quality? He asked "Am i imagining things?" I say no he's not and give him the reasons that's all. And I'm not saying the Lightspeed Attenuator is the answer, even it doesn't quite sound as good as going direct. In fact I've said many times if you want to h... | |
| Does the volume control effect sound quality? He was talking about how the volume control has changed the sound. And I say given the same value they all sound different to each other. I believe because of materials used and contact point pressure, given the same value they are the single most... | |
| Does the volume control effect sound quality? The oringal question was not so much about his Dynaco preamp for showing up the differences in volume control sounds, which will be magnified to a larger extent with higher rez amps. But the reasons why they sound different! And why he was not ima... | |
| Does the volume control effect sound quality? No but it's what all and I mean all audio desigers use, it's a good indication of if what your looking/measuring at is as close to a "piece of wire" nothing added or taken away, and all designers use these non musical wave forms to see what's goin... | |
| Does the volume control effect sound quality? Yes you are right with these TVC's as well, they do also have inductances, have you ever seen what happens to 20khz square wave through them, they can either ring their brains out or be severly bandwidth limited. What goes in doesn't come out unsc... | |
| Does the volume control effect sound quality? Inductive?? the worst you can have is an iductive wire wound pot, that comes in at no.8 on my decending horror list? Cheers George | |
| Does the volume control effect sound quality? With experiments with volume controls go back as far as the 1970's, this is what has bought about the ldr Lightspeed Attenuator. Almost all rotary switches have a stiff disc wiper made out of a different material to the springier metal that the le... |