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What about those power supply filter caps? Are they Nippon Chemi-con KMG? Do you think changing them to Panasonic TSHA would yield better results?
I'm not sure how much of a difference that would make, but I've been wanting to replace those caps too just to see. I know zer061zer0 replaced his with something else so maybe he can make a comment on this.
I just gotten the stuff to remod and recase this amp. I started with the 6x4 mod yesterday and found it rather hot, is that normal. My PS board is slightly different but i am quite sure i got the connections correctly.
Chops, Derek, do you have this problem? is it normal?
I have bought a casing to recase my XS. Right now, I hear a lot of noise and humming. Everything is out now, I have yet to place them into the new casing. I do not know what is the problem. Could some one help me out?
Sorry zer061zer0, it's been a while since I've been here on Head-Fi. About the amp reviews, you misunderstood me. I'm not doing the shootout, I'm going to be eventually sending my amp to someone to include in his shootout.
Originally Posted by zer061zer0
I just gotten the stuff to remod and recase this amp. I started with the 6x4 mod yesterday and found it rather hot, is that normal. My PS board is slightly different but i am quite sure i got the connections correctly.
Chops, Derek, do you have this problem? is it normal?
So what exactly is getting hot, the tube, the transformer, or the PS board? My transformer is fairly warm, but the 6X4 definitely gets hot.
Originally Posted by zer061zer0
Hi Guys,
I have bought a casing to recase my XS. Right now, I hear a lot of noise and humming. Everything is out now, I have yet to place them into the new casing. I do not know what is the problem. Could some one help me out?
In my amp if I don't tie signal ground to the case then I get hum. Once you put the amp guts into the new case and tie ground to it hen it should go away.
Glad to see this thread come up again. The street price is going down on these amps to Little Dot level. You have better tube options with the Xiang Sheng and I am seeing the chinese recitifier tube available on some US tube websites which is comforting.
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"These are the good times and we are having them...right now!"
Fantastic thread, this little amp seems to have quite a following and I'm hoping to have a play with mine soon.
I just picked up a farly cheap s/h unit off e-bay , it arrived this morning. Initial impressions are that it has potential to sound good, although it is a little hissy at the moment. I don't kow the age or history of my unit so just for now the first things i intend to do are change all of the Valves for some newer/better ones.
I'm not even bothered about Boutique brand NOS items with huge price tags I just want to fit a set of brand new decent sounding valves to get me on my way, I've read that the front widow valve is purely cosmetic so wont change this one oif its not required.
The Volume sounds a little un-balanced and doesn't have a nice feel to it so I'll probably make changing the Volue pot to an Alps Blue Velvet 100K log my second mod after replacing my valves.
My Amp didn't come with a user manual and I'm 'fairly' new to valves , (although i did buy & build a World Designs KEL84 integrated amp last month which works and sounds fantastic).
I'm not familiar with British or American valve numbers let alone Russian and Chinese designations.
Can some kind soul please give me some suitable part numbers for valves to go and buy, cheap but effective and easy to source preferably.
Any chance of a basic shopping list to get me going please.
The front tube of the three tubes inside the amp (not the front window, that's just for show as you said) is the gain tube and should have the biggest influence on the sound. For this you can use:
For the 6N3 ------> 6N3P, 5670, ECC42, 2C51 and 396A
The two behind that are the left and right channels:
For the 6N11 -----> 6DJ8, 6922, E88CC, ECC88, PCC88, E188CC, 7308, 7DJ8 and 6N23
As I mentioned in the other thread the NOS GE JAN 5670W can be found on ebay cheap and sounds a lot better than the stock chinese tube. With the stock chinese 6N3 I had some buzzing and hiss that completely went away with the GE.
The Russian military NOS 6N3P-EV is also said to sound good, I have two on the way, so I can't say if I like it more than the GE JAN. I will post impressions once I get them.
You'll find more tube suggestions in the other thread as well.
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John Benfield
I must admit that when i first fired the amp up i was a little disappointed at the bit of hiss i was getting and also with the general dynamics of the sound. However i did also think it had enough potential to be worth spending a bit of time, effort and small amount of cash with as long as the new valves don't cost too much. .
If i'd known that the very front valve was just a widow display i would probably not have bought it, as it sems a little cheap to do such a thing, possibly damaging to the sound even.
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