Quote: Originally Posted by arie123 I replaced all wires indicated by the yellow arrows in Ogygia's picture of the amp by copper/silver teflon coated flexible wire. Unfortunately: no effect. Moving around the wires at various places does nothing to the hum level. It was worth the try...

Quote: Originally Posted by arie123 I replaced the wire that connect the ouput cap to the headphone socket board. That wire is parallel to two 130V wires for centimeters, so I decided to reroute that. Alas, that gives no reduction of hum. I'm starting to lose my patience with this...

Quote: Originally Posted by AntiGeek What are you going to do about the buzzing problem on the 332s Yuking? Just redesign it....recable it...I noticed the problem once I saw the interior.... I dun think it was designed by anyone who knows HIFI at the beginning......Darkvoice is...

Quote: Originally Posted by BigTony Looking at the above you'd expect the hum to be an issue in both channels, whilst its only in one channel (left) on my amp. they a asymmatric and handcrafted...one more facter....your system is not sensitive enough to listen the hum does the...

Whatever....the design and some important materials used in 3322 is better than 332s. The materials like vishay resisters and mkp capaciters. 332s get better in neutrick phone jac and cmc rac....

Quote: Originally Posted by arie123 Ogygia: I should have added that I DO appreciate your suggestions. If it indeed proves to be the crossing of the input signal cable over power wires, solving the problem at the source is indeed by far the most elegant solution. It will need quite some...

Quote: Originally Posted by BigTony I really like the Mullard 8100 (CV4010) tubes, lots of nice rich tone. good for Jazz! male voice!

Is there anyone can recable the signal input connection of 332s? Trying to make it not crossing over the power wire and stick to the case. I think it is the best solution, since someone proved my power off test already...The noise may come from power. Adding capacitor will have unknown effect...

Quote: Originally Posted by gbacic They don't use top quality tube sockets or caps in their amps. So if you upgrade those (as I intend to eventually) the hum should disappear or lessen. So...from what you say, many tube amp should have hum....right? they are not using M-cap or...

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Quote: Originally Posted by BigTony The hum is very quiet, and as soon as the power is turned off the hum dissappears, and as soon as the power is turned on the hum returns. Sorry for that....My guess may right, so no matter how you all burn in your amp...hum will be still there...

anyone conduct my test?

For the hum.............I think of one way to test it! you all can try to switch off the power of 332s and keep the music playing! Since those caps is discharging and the tube is still hot, you all can hear the music for a few sec. But at this moment, the noise of the rippling current from...

Quote: Originally Posted by BigTony Nice photo :-) I replaced all the tubes in the amp with NOS tubes and the humm is still present, however the hum persists when the volume is set to zero (i.e. no music playing). I poped the tubes that came with the amp back in, and the hum is...

Quote: Originally Posted by BigTony Nice photo :-) I replaced all the tubes in the amp with NOS tubes and the humm is still present, however the hum persists when the volume is set to zero (i.e. no music playing). I poped the tubes that came with the amp back in, and the hum is...

Quote: Originally Posted by xmdkq [报价= BigTony; 6373345]我想他的意思是'有信号管了100个小时后，有100个小时的燃烧'不应该的嗡嗡声。 我332S哼权利开箱后，现在使用大约40小时的嗡嗡声，只有在左手一边，更安静，比我第一次把注意力转向 了放大器。我本来计划运行一周（约100个小时）睡觉都在放，所以不要太在噪音惊吓的权利在箱 子外面。[/报价] 行 He just translated the post before him/hers....Grammer is totally...

Quote: Originally Posted by xmdkq [报价= xmdkq; 6373163]是信号管烧伤确定，因为不应该一○○小时蜂声。[/报价] [IMG] Head-Fi: Covering Headphones, Earphones and Portable Audio - xmdkq's Album: 1 - Picture [/ IMG] The chinese doesn't make sence... Confrimed the signal tube was burnt, since it should not...

Quote: Originally Posted by Godkin Mullet, don't get confused. I'm not talking in theoretical terms: I own a 3322 with 40uF per channel output caps (VISHAY) and it still sounds great with the HD650s, better than the old 332. Remember, the 332 range of amps was designed with the HD650s...

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Quote: Originally Posted by Mullet I asked them about the impedance difference between the 332 and the 332c and haven't got a response yet. I can cancel the order, but maybe the 332c is fine with HD650s. Has anyone tried them with HD650s that can confirm that the 332c is not worth the...

Quote: Originally Posted by 翡伽璐 [报价=鲻鱼; 6350826]行家伙，我还是有点感到困惑与老332 332c。据我所知，332c现在是低阻抗惠普等进展，但确实使他们不如旧332使用的问候与HD650s 等？或将得到更好的332c低阻抗，因为现在可以用罐，不喜欢斗斗棕色的声音。[/报价] All headfi-ers, I am still confussing with 332 and 332c. AFAIK, 332c is design for low impendence cans, but in fact...

Quote: Originally Posted by yuking09 新的管应该用于超过100小时，如果有一些噪音，如果有，你可以告诉我在那个时候。 New Tubes should be burnt in for 100 hours. After burn in, if you still hear some noise, you can tell me. translated from chinese I am hoping my guess in #23 & #25 goes wrong...

Quote: Originally Posted by gbacic Off topic (sort of) on the old 332, how was the preamp turned on? do you just take out the headphones and then it goes to preamp? it should work at the same time....no on off...

Quote: Originally Posted by Pricklely Peete Very nice mods thus far...you could try Russian PLIO K75-10's bypassed with T3 Teflons in place of those 10uf MKP's for a really staggering SQ improvement although space with either of those Russian cap choices is an issue. The RIFA's are a...

roughly speaking......green is signal part; red is power The red arrow is pointing to about 130V dc wire and green for signal 3322 has a more separate arrangement. and signal wire were sticked to the case... Hope this helps for you. 希望幫到你...yuking09 happy new year to all...