krelldreams

Responses from krelldreams

Does anyone care to ask an amplifier designer a technical question? My door is open.
@ramtubes.    It is very likely that what I’m hearing with this preamp vs passive thing is a less than perfect passive, against preamp distortions which “smooth” the sound. I’d like to know more about your suggested solution to this issue, but con... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
What I’m hearing is a thinning of the midbass range. The lower bass is coming through. There is also the etched character I hear in the higher frequency range. These are slight, but obvious changes in the sound which, together, render the music “l... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
Gentlemen, thank you for your advice. I actually never intended for either the Axiom passive, or the little Mani to take up residence in my main system, however I decided to try them, which lead to my interest in replacing my preamplifier. What st... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@ieales. Thanks for the link.. I’ll check it out. My comment regarding the phono preamp with aux inputs and level control was made selfishly because I am very much interested in outstanding LP playback, and only listen to my digital sources casual... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
Sorry, I had mentioned my sources in a previous post, but this thread has many, many posts by many people! I primarily listen to LPs, but I do have a DAC (Cambridge DacMagic Plus), and an Audioquest Beetle to stream Spotify over Bluetooth. I initi... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
Thanks George. I like the idea of a passive control device, and I’m trying to learn about the system matching aspect so I can try an appropriate unit. I did appreciate the clarity, but was distracted by what I’ll call an overly etched, and leaner ... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@ramtubes. I measured the impedance of my passive across the input to the output as you requested. It measures 1.21kohm, which is as written on the bottom of the case. I opened the case and found an Alps volume pot, two resistors, and wiring. I pl... 
Connecting a receiver with a tuner to a Rotel integrated amp
Nak pre out to Rotel aux in. Select tuner on Nak, select aux on Rotel, play tuner through Rotel using Rotel speaker outputs 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@atmasphere. Great comment (on hearing)! I believe our hearing mechanism is somewhat of a “moving target”, so to speak. I’ve wondered why sometimes music through my system sounds great to me, and other times, not as good. Even when playing the sam... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@ramtubes. You mentioned, that in the RM 9, two KT120 or KT150 output tubes could be substituted for four EL34s in each channel. Is there an advantage to using fewer higher output tubes as opposed to using double the number of lower output power t... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
I’d like to add this: I appreciate the fact that there are two professionals contributing here, despite the fact that there is tension that’s been created by disagreement. I’m trying to read through the commentary to the points being made, the exa... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
Haha... Nimble Tube-Roller Society! That exchange must have been just before I started buying stereophile (1986). I agree that having the freedom to choose different power tubes for the same amplifier is liberating from an owners standpoint (well,... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
What prompted my question regarding tube types was the discussion in this thread about 6sn7/12au7/6sl7/5751/12ax7 tube type use for preamps and amp inputs. But there is also the question of power output tube choices - el34/6550/kt88/kt120/kt150, e... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
What causes a designer to choose a certain tube type for an audio circuit? Is the circuit designed around a specific tube, or is the best tube type found for the circuit that’s been/being designed? I know there are different electrical properties ... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@ramtubes. I’d like to personally thank you for taking the time to sift through all these messages and provide your input on many of them. There’s a lot of valuable information here. I’d like to thank @atmasphere as well! Differing viewpoints give...