wickitom
New Head-Fier
it should work, US voltage isn't exactly 120 volts everywhere, there is a range.
Thanks ..........I was more concerned regarding the 50 Hz issue but I've powered up the unit and all is fine. Another newbie question though .....
The fine seller of this unit also included a collection of tubes for me to try including the following:
* The originals
* (4) RCA 6AS7G
* (4) Russian 6H13C
* (2) Philips 6SJ7WGT
<<SNIP>>
The 6SJ7, which are the driver tubes, must be in the back. Do not put them in the front, or very bad things will happen. The sockets are the same octal-base type as the 6AS7 power tubes, but do NOT mix these up. Power tubes in the front, driver tubes in the back.
Beyond that, no problem to swap the RCA 6AS7's for the Russian ones, but keep them in pairs of the same brand.
That's right - the SE used the 6BX6/EF80 for the driver tube, yes? Electrically equivalent to the 6SJ7, but as you pointed out, it's 9-pin.
Sorry to bump the thread, but i just got this baby.
Would like to check if the tubes needed for the amp need to be in matched pairs. (For both driver/power tubes)
Quote:
But when prompted to drive the K1000s, it begs for mercy, clipping at only around 12 o’clock.
Op-amps reaching their limit under high load. Give it better op-amps and give those more voltage to work with and the issue should go away... (matching impedance between k1000 and the amp would help too, but I am not sure how exactly impedance transformers influence the quality of the signal).
Excellent review, although I wonder how would this amp work with lower impedance headphones? Although low impedance issues are not difficult to fix, additional impedance is probably the easiest thing to add in the chain. Also how do you feel about its performance with classical through dt880s?
Also, what power adapter do you use? Sorry to be asking 10000 questions >.< Just bought 337's lil brother 332, while sitting with an hd595, and am wondering about ways to get the best out the amp (332 is supposedly very similar to 337), apart from tube-rolling.