[hyamaiata]

echo1, the links you provided in the first page don't seem to work for me, do you know if there's any dealer in Beijing o Hong Kong who carries the Darkvoice?

Thanks.

 

[headphonejunkie]

A group buy would be something I would be serious about too. I would like a nice tube amp starter that is under three hundred dollars.

 

[pentagonwizard]

i'd be into a group buy also. someone should look into this.

 

[DennyL]

Quote:

i'd be into a group buy also. someone should look into this.

I thought someone on this forum did put this to Jian Liu and he wasn't able to offer a discount.

 

[echo1]

75.00 dollars(cough,cough)to twist the heater wires together. It helped some but others still hum. I have 4 tubes, 3 are national union grey and black glass and 1 hytron jan tube. I will mail them to anyone who wants to try them out.It may just be dc voltage issue. I hate to throw them away.
I have several tubes now that work well with the amp so I am happy.Here is my final list.
CBS\JAN 5692
HYTRON 6SN7GT
CBS\HYTRON 6SN7GT
RCA DARK GREY GLASS 6SN7GT V-231-YR1945
RCA SMOKE GLASS 6SN7GT
RCA 6SN7GT CLEAR GLASS
KEN RAD 6SN7GT V-231
SYLVANIA 6SN7GT
UNITED ELECTRONICS 6AS7G
RCA 6AS7G

I know there are more, but baring one heck of a deal I cant resist, I am through tube buying.
Which one is my favorite? I am leaning toward the RCA v-231 6sn7gt.But not one of them sounds bad.

 

[Epoch]

Is it running AC to the heaters? If so, its probably an ugly solution, but regulated DC for the heaters might remove hum.

 

[Fitz]

Quote:

Originally Posted by echo1 75.00 dollars(cough,cough)to twist the heater wires together. It helped some but others still hum. I have 4 tubes, 3 are national union grey and black glass and 1 hytron jan tube. I will mail them to anyone who wants to try them out.It may just be dc voltage issue. I hate to throw them away. I have several tubes now that work well with the amp so I am happy.Here is my final list. CBS\JAN 5692 HYTRON 6SN7GT CBS\HYTRON 6SN7GT RCA DARK GREY GLASS 6SN7GT V-231-YR1945 RCA LIGHT GREY(ALLMOST SEE THROUGH)6SN7GT RCA 6SN7GT CLEAR GLASS KEN RAD 6SN7GT V-231 SYLVANIA 6SN7GT UNITED ELECTRONICS 6AS7G RCA 6AS7G Oops, I allmost forgot, I have 1 tube still coming. A tung-sol mouse ear 6sn7gt. If it works I will add to this list. I know there are more, but baring one heck of a deal I cant resist, I am through tube buying. Which one is my favorite? I am leaning toward the RCA v-231 6sn7gt.But not one of them sounds bad.

So he did exactly one of the things I did to my own Darkvoice. Actually I completely replaced the heater wires as well as twisting them together. Helped a fair bit actually, but I've got an intermittant hum now because I need to hot-glue some other things back down again.

I'm about to replace/upgrade a lot of parts (ok, almost everything) on mine for the hell of it, so if you want to send a few of your worst offenders my way I'll be glad to see them through the upgrade process for changes. I can also see how they do with my original mod and heater wire changes.

Epoch: Yeah, it has 6.3VAC straight off the transformer for the heaters.

 

[echo1]

He did the same to mine.He ran the twisted wires from the transformer to the heaters.
Also fitz I will send you the tubes if you want. My email is catskinner@emailaccount.com if you want to send your address.

 

[Fitz]

Email sent, thanks for helping to assist my insane modding

I'm going to experiment a little more over the next few days with some cheap components I have on hand just to see what all I want to order for upgrades and changes before I start sourcing the parts. I know I'm not replacing the transformer or main chassis

, but everything else is looking like fair game right now.

 

[Bosk]

The plot thickens!


It seems that I won't be getting a THA336 after all, but instead I'll be recieving a THA336i.

Here is a copy of the e-mail I recieved from Jian Liu today:


I am sorry to tell you that manufactory will send your amp to you next
week. Because they are so busy recently....
We will send you a new verion to you: THA336i, it is better than the old
version...
I hope you could understand my idea, I hope you get the best amp.......
Thank you!


This is further proof that Jian Liu is a very nice fellow to deal with, and that the Darkvoice people are serious about giving their customers great service!

I have no idea what sorts of improvements the "i" version will include - there doesn't seem to be a whole lot wrong with the original version! - but I can assure everyone that I'll be posting a full review of the amp once it arrives!

 

[LS4ME]

Quote:

Originally Posted by lolos Quote: Originally Posted by echo1 I paid 250 shipped with 110 voltage and 3 day air. Quote: Originally Posted by Michael415 ...quoted me 280 for the amp... Quote: Originally Posted by swt61 ...He quoted me $299.00... Why is he raising the price every single time?!!

That is how chinese do business. It might be a good idea to contact the manufacturer directly. If I can get the manufacturer address and phone no.
I can give them a call. I am fluent in mandarin. Please tell me (estimate)
1. Quantity
2. Voltage requirements
3. Method of Shipments
4. Method of payment
[size=xx-small]NOTE: I am not in to make any money, You will pay the manufacturer directly. I will ask the manufacturer about the prefered method of payment and give you all the details.[/size]
Although I have no interest in the darkvoice, but I am looking for a reasonable tube amp to drive the stax Electrostic Ear speaker. I would like to know if they make an amp for STAX. Hope this helps.
BEST REGARDS
LS4ME

 

[philodox]

What is different about the 'i' version?

 

[echo1]

Fitz, the tubes are on the way.Mailed 6-7-2006 3P.M.
Also I emailed them about the AC hum issue with older tubes. I also showed them your schematic and the idea of twisting of the heater wires. Maybe this is the 336i version? I guess will find out.The tube guy said he was suprised that they didnt twist the wires. AC for the heaters is common,but he said the amps that do allways twist the heater wires and use other means to deal with the hum, for example your fix Fitz.Well bye all.

 

[Fitz]

Quote:

Originally Posted by echo1 Fitz, the tubes are on the way.Mailed 6-7-2006 3P.M. Also I emailed them about the AC hum issue with older tubes. I also showed them your schematic and the idea of twisting of the heater wires. Maybe this is the 336i version? I guess will find out.The tube guy said he was suprised that they didnt twist the wires. AC for the heaters is common,but he said the amps that do allways twist the heater wires and use other means to deal with the hum, for example your fix Fitz.Well bye all.

Thanks again!

We'll definitely need some pictures of the internals for this "336i" version to see what differences there are, if Bosk is kind enough to indulge us when it arrives

. They didn't change the model number any when they upgraded the chassis and added preamp outputs, so anything with a new number is indeed interesting.

 

[heathkit]

OK folks I've been lurking around here a lot for the past few months, and I'm very excited about this tube amp. So much, in fact, that I just pulled the trigger on one.

Jian Liu quickly replied to my email so I went through him (same seller that Bosk used).