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Darkvoice 336i & 336SE Tuberolling PartII

Discussion in 'Headphone Amps (full-size)' started by heatfan12, Jul 31, 2008.
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  1. Gallic Dweller
    Someone should have pointed out long ago that there are some serious voltages in valve/tube gear. If your making measurements with a live valve amp then (a) always wear rubber soled shoes (b) keep one hand in a pocket so that should you touch something live the current will not arc across your heart or (c) you can buy a cheap strap to wear round a wrist connected with a crocodile clip to the metal shell of the amp to ground you (d) you can buy some special rubber gloves to protect yourself. There are some real @#~'~ who use 1kW Russian transmitter tubes to build amps with - one wrong touch in one of those amps and it's 'good night & good bye'.

    First time for me on this thread, I only got my D/V 3 days ago. The old thread referred to has gone:triportsad: . Should I start a new thread about mods and ideas or continue on this thread?

    I had 3 reasons to buy the D/V - (a) it uses a driver valve/s that I really like, creating numerous possibilities for different sounds to suit everyone: (b) it's point-to-point, making mods a doddle (most of the time) compared to PCBs and track lifting: (c) it can be used as a pre-amp.

    So, it's well made and looks good, this is very important for many. I don't see anyone using a vinyl front end, I do - Kenwood KD990 with it's excellent gimbal arm designed specifically for the deck, fitted with an Audio Technica 33EV MC, i/connect (my own) 4 x 26AWG high purity solid core silver conductors (for both signal and return) using air cored (oversized) FEP tubing kept straight, not twisted inside non microphonic sheathing. This into a Talk Electronic fully discrete MC 3 phono stage and another set of my own i/cs to connect to the D/V.

    I fired it up using the supplied Chinese valves and they certainly aren't a rubbish sound and if nothing else keep them to be used as guinea pigs after a mod. Powered down and changed both for my all time favourite pre-amp valve - the 6F8G Tung Sol Round Plate - I hear you Jim Spec:beyersmile:. and the Svet 6AS7 o/put valve - underwhelmed, nice but lacked detail or real bass. I was using my old trusty 650s and I was appalled at just how bad they sounded - the bass was bloated rubbish, there was no detail - this was not how it was supposed to be, it was a truly awful sound. So many have raved about the D/V&650. I had received the day before the s/hand Beyer DT990 Premium cans I had bought on ebay.de they were about 9 months old so burned in.

    Fitted the Beyers and changed the o/put valve to a GE 6AS7 GA. I often use Joni Mitchell's superb 1976 Herija LP to check on bass/treble. I have never heard Jaco Pastorius sound like this. His bass moves in and around nearly all the tracks, deep, so deep and layered, the soundstage was so, so deep, width was average but it didn't matter. Joni was more Joni than I had heard before. Remember this amp had only had maybe 30 mins from new. Details I had never heard. Valves and cans cannot create anything, they can only convey what is presented to them - this little h/amp is a total blinder - there are a few well tried and tested mods and I have a few ideas as well but this is so good that they can only be icing on a very,very good cake.

    The only bummer for me is the bright top edge to the Beyer cans. In every other respect they trash the Senn 650s - there is no such place as paradise.
     
    Jim Spec likes this.
  2. diphaloraptor
    How did it work out? I just got the HD6xx from massdrop and am looking for a good pair for my DV.
     
  3. aisalen
    Sad to say that up to this day, I can't able to hear them as they are located back home and can only hear it when my vacation is due after a month. DV is big and heavy, hoping that I can also bring those with me when I go back to work overseas.
     
  4. Gallic Dweller
    aisalen,
    It's not that heavy, it is packed superbly and the whole package weighs less than 5K - why not post it and your source to where you work. If the voltage is different you can always buy a step-up/step/down transformer. I remember very well moving to another country to live and work and had no music for over 8 months - terrible.
     
  5. aisalen
    I am currently using Jot/650 and wm1a/iems for my needs while I am here at work. For the power source, I do not have problem since the voltage is the same with my country. We will see if I can able to bring it here from home, I will try.
     
  6. diphaloraptor
    Damn, well you'll have to fill me in once you have a chance.
     
  7. aisalen
    Yes I will do, but you can get one as those that I mentioned is a common consensus among users here in this thread reading it from the beginning so it is a safe bet.
     
  8. diphaloraptor
    Will do, was ebay the best option? I've bought tubes a while ago for a little dot but lost of them were community sourced. Also, did you buy vintage tung sol made in USA or the new production made in Russia?
     
    Last edited: Mar 23, 2018
  9. aisalen
    I bought mine from eBay, as per advise from this thread buy made in USA NOS (new old stock) not the newly produced made in Russia.
     
  10. dobigstuff
    Western Electric 421 A.jpg
    One of the Best Tube Combos for the Darkvoice. I have the HD 700's
     
    spacequeen7 likes this.
  11. bluzeboy
    newbe darkvoice owner here ,what is the differance between the front socket & the back?
    thanks
     
  12. Jim Spec
    I do not believe that it could be anything but:

    back socket - Input from source
    front socket - Output to headphones

    I still have a DV and found it to be a wonderful. It was the first really good headphone amp that I owned. I did really love the shaded RCA 6f8G (with adapter) It had such a smooth sound and ran significantly cooler than the 6080. Best listening, JS
     
  13. Gallic Dweller
    Jim,
    if you can bring yourself to shell out for a Tung Sol RP 6F8G as driver and do some simple mods it will be your number one h/amp again and maybe you will try it as a pre-amp but it will mean changing the pot, no way can you use the D/V into a power amp until that is done.
     
    Jim Spec likes this.
  14. Jim Spec
    I am afraid that the Darkvoice is in the closet. I am using a Bottlehead Crack. As much as I liked the Darkvoice I do prefer the Crack. I just have not been able to bring myself to sell the DV. Maybe soon. I did order the Tung Sol. It should sound great in the Crack. Best Listening, JS
     
  15. spacequeen7
    Loving this combo GEC Marconi /Vt-231
    [​IMG]
     
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