WilliamLeonhart
Headphoneus Supremus
BTW is anyone using the Voshkod 6ZH1P-EV made in "07-81"? Mine have somewhat dry mids, fuller bass and non-exceptional trebles... Overally quite boring.
With others saying there are fake muses 02 out there, would anyone know if this is legit?
http://www.amazon.com/gp/product/B00B086ZTQ?colid=2ZO3U2NKSKWCV&coliid=I34INO5GJERP9&ref_=wl_it_dp_o_pC_S_ttl
Does the fact that the I+ is a hybrid have anything to do with the need/un-need for matched pair?
Just popped in a muse02 and was quite surprised at the difference. Vocals are a bit hard but I am hoping that will change (don't know if op-amps need burning in). definitely more detail and the bass is superb, makes my Q701's sound warm and deep. I feel like the soundstage has narrowed a bit but its early days yet.
Thanks everyone who have recommended this amp.
Unlike tubes and other discrete components, there's so little physical material in op-amps that burn-in is not really a factor. What tubes are you currently listening with? Currently, I am listening with the MUSES02 op-amp and 6ZH1P-EV tubes. No hardness of vocals, Wonderfully open and clear, with deep yet very well controlled bass. With Grado 325e and AKG K550. Having said that, I have made some cicuit mods to the amp, which have improved it's sound.
What mods have you done?
Michael V:
How did you get the Burson op-amp into the LD case? I have used some of these in my home made DACs and they are quite tall. Sound good though.
How is the sound with the Burson op-amp and the 6ZH1P-EV tubes?
A while ago I decided to dedicate and tune my LD I+ for the Fidelio X2's and after trying a lot of different configurations I've now settled on Siemens 6AK5W tubes paired with MUSES8820 op amp. Sounds seriously good and the best I've ever heard the X2's to my ears.
I'd really like to try the Burson SS V5 op amp in my LD but I'm afraid it's going to sound too good and since it doesn't fit with the lid on it would be terrible to know that it can sound even better than it does now but not being able to take advatage of it
Vbe mod: connected a 0.1uF cap between the bases of each output transistor pair, to bypass the Vbe multipliers. This removed the transient at around 10KHz, so treble a bit smoother, especially at higher volumes.
Upgraded all main caps to higher quality versions, but kept the values the same. This can be a pain due to limited space in the chassis.
Volume pot upgraded to higher quality ALPS version. Same 100K ohms.
Generally just trying to make the most of the existing circuit design, which apart from a couple of things is very good. For some reason they chose to connect the tubes output to the inverting input of the op-amp, which results in phase inversion. This is something I may experiment with at a later date, but for now, I am enjoying the LD1+ as it is.
Burson sells an extender for it so you can put it anywhere you want and it will fit in the 1+ that way