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mulveling

Responses from mulveling

Step Up Transformers….Are they Worth the Trouble?
@lalitk Glad you were able to resolve the feedback! Nothing else really matters until this is settled. Running subs with vinyl is definitely doing life in "hard" mode ;) I’m guessing your feedback was well into audible spectrum. When I was fight... 
Output from Mola Mola preamp to Headphone Amp?
Most headphone amps uses an analog volume potentiometer or stepped attenuator up front, to pre-attenuate the input signal before it hits any active circuitry. Proper protocol is to turn this volume down when headphones are not in use. That makes i... 
Crucial TUBE question
Just to reiterate, the problem with wiring up a the KT screen grid like a "plate" here is going to be power dissipation - the fine wire obviously can’t handle power like a solid plate. We know that plates glow orange or red when they’re over-drive... 
Crucial TUBE question
I thought OP replaced both rectifiers with a matched pair of KT50 - maybe he can confirm. Well, pin 2 on both 5AR4 and KT150 (same as KT88 pinout) hits the heater, but the other side of filament is pin 8 (also ties to cathode) on the rectifier an... 
Step Up Transformers….Are they Worth the Trouble?
Based on your experience, I should rule out a transimpedance phono since both of my carts are spec’d over 2Ω. Right? In my experience, no need to limit this way. What I found to be a reasonable determinant of matching was the ratio of output le... 
Crucial TUBE question
Wow. Props to Upscale for being so calm in their response here lol. Those tubes are not pin-compatible; they’re not even function compatible. The 5AR4 is a full-wave rectifier and you maybe sort of got this KT150 scheme working as a half-wave rect... 
VPI Industries---Love the Company as Much as their Turntables
Interesting...Does that mean the VPI gimbal design isn’t much of an "improvement?" Guess it’s in the ear of the listener. The gimbal looks just as low tech comparing the uni pivot. Never found the uni pivot to be "unfriendly" on my now 13 year o... 
Is "detailed" audiophile code for too much treble?
If a component is "bright", then it’s emphasizing some details at the expense of others, or against the "musical whole". Yes, some lower end components may "fake" perception of detail by pushing up treble. Then there are some components that truly... 
Adding tube sound to my SS system
How is the Yiggy an R2R DAC? It uses a DAC chip. Unless I am missing the meaning of an R2R. A chip is just a package. It doesn’t disqualify R2R / ladder conversion. The Yggy (OG versions, at least) were an R2R DAC based on a chip that was (IIRC... 
Adding tube sound to my SS system
Personally, I didn’t find the Yggdrasil to bring me anywhere near to what I expect from "tube sound". It was a very good DAC to be sure, but still rather SS sounding. The Meridian DACs (566, 808 series) are not even R2R and get me closer to the so... 
Adding tube sound to my SS system
https://tmraudio.com/components/preamplifiers/modwright-analog-bridge-tube-buffer/ @jbuhl  Yep - the "Analog Bridge" by ModWright is a fantastic suggestion for OP that shouldn't get buried. And Dan Wright is truly a great guy. I almost picked u... 
Adding tube sound to my SS system
@tkrtrb125 oh my bad lol. You are right; I scanned too fast. It's extra confusing because they make both BHK preamp and power amp units, and I think both are hybrids.  
Adding tube sound to my SS system
@fuzztone that is not accurate unless you are using a Flea-watt Tube amplifier. Many PP Tube Integrated and Amplifiers on the market that will power inefficient speakers. AR, Unison, Jadis,  Rogue, AH, Octave just to name a few. I have speakers w... 
Adding tube sound to my SS system
This is sacrilegious, but I’ve experimented lately with SS lines stages versus my tube line stages. What I’ve concluded is that good SS line stages (Phison PD2 SE, Meridian 808v5) are highly transparent. When I add a good SS line stage in front of... 
Biwiring make any sense?
What about biwiring with silver for High frequencies and copper for low frequencies ? I do this with AudioQuest KE-4 (15 AWG pure solid silver) up top and Mont Blanc (12 AWG solid copper) on bottom. Used to use this in my main rig, and now brou...