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2125
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Nov 17, 2018
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What tubes makes the tubist sounds on the DV?
Nov 17, 2018
Paraglider
64
Dec 10, 2018
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Both! Each channel has a 6SN7 triode driving a 6080 Power Triode. No Output transformer used to get those nice triode tube amplification tones right to your higher impedance headphones! Most tube amps now use a Pentode in the Output section. The earliest tube amps were mostly Triode models using 45's or 300's as Output tubes. Many still swear by that original Triode tube amplification sound as the sweetest tones available. ;^)
Dec 10, 2018
2125
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Dec 11, 2018
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I mean a different tube. I plan on upgrading I was hopping to find a tube that would really exaggerate the tube sound
Dec 11, 2018
Paraglider
64
Dec 11, 2018
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See some of my other comments on the DV and offers. The tube that will have the greatest effect on the sound is the preamp 6SN7! Many different kinds out there to try. Sometimes even a low testing tube can have a very nice sound in a certain circuit! The other thing you could try and I haven't seen anyone else mention this yet. Is to try a 6SL7 instead of the 6SN7s! The 6SL7 uses less heater current so no worries there. But the 6SL7's triodes have a significantly higher amplification factor! 6SN7's are @ 20x and 6SL7's are @ 70x amplification depending how they are biased. A weak 6SL7 might even exaggerate the tube sound the way you want??? Overdriving the 6080 with a 6SL7 will cause clipping distortion to start sooner. On a guitar amp that is often desired, but usually not so much on a Hi-Fi headphone amp. ;^)
Dec 11, 2018
2125
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Dec 17, 2018
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Ohh sorry. I seem to have misread. For the 6SN7 what manufacturer do you recommend? I'm looking at Psvane UK-6SN7 or RCA for the 6080 I'm thinking GE both 6SN7 and 6080 is a straight swap right? I mean I don't have to change jumpers or anything. Just put them on?
Dec 17, 2018
Paraglider
64
Dec 17, 2018
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Yup, same tubes are a simple swap. I have strong testing GE 6080's 6SN7's in my amps now myself. It is all about how they sound together. If either tube does not have well balanced triodes you may notice either L or R channel is weaker than the other. As I said before the 6SL7 uses less heater current but has significantly more gain, so it could also be put in instead of a 6SN7. I am using my SMSL T1 with a Mullard 6DJ8 in it as my DAC to drive my DV's with GE 6080s and 6SN7s in them now. DV is driving my Senn 6XX headphones which I am using sort of as speakers now. T1 and DV volumes set at 50% as headphones act like a speaker. I have to turn both amps down to 25% to put the headphones on my head. But Classical Music comes alive like that. The soundstage is vast and the volume can swing massively, sometimes even startling me, and I still cannot hear any hum or interference during quiet or no audio portions! Depending on the DAC you have feeding your DV your results may differ. A wimpy DAC may even benefit from a well balanced 6SL7 tube in the preamp spot? But more important, get a fan underneath your DV before it cooks the components inside and causes them to fail prematurely!
Dec 17, 2018
2125
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Dec 19, 2018
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the GE 6080 and 6SN7 seems like the way to go. Do you have a recommended online store to buy from? I don't need to buy "matched pairs" rights? Since its just 1 tube for both channels. I was thinking ebay. If you look from the front of the DV its 6080 then the 6SN7 right? Looking around I see 6SN7GTB. Is that the same as 6SN7?
Dec 19, 2018
Paraglider
64
Dec 19, 2018
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6SN7 is in front, 6080 is the bigger tube. You want balanced tubes in that both sides of the tube perform equally. I got a person from France who agreed to pay $50 plus shipping for 1 of my JAN (Joint Army Navy) GE 6080s and a GE 6SN7. My tubes test 69 / 69 for the 6SN7 and 80 / 80 for the 6080. They are in my amps now and I have verified they sound Outstanding. Classic Music sounds so big with an upgraded DV and Senn 6XX's. I know my tubes are great and will guarantee they work properly at that price.
Dec 19, 2018
2125
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Dec 21, 2018
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ahh I see. Thank you for sharing your knowledge. I'll be trying out the stock tubes first before I roll them.
(Edited)
Dec 21, 2018
Paraglider
64
Dec 21, 2018
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They may work. Mine looked poorly constructed and I had known good ones so you can guess I never even tried the ones it came with. I should at least try out my Chinese 6080s! LOL
Dec 21, 2018
Paraglider
64
Dec 21, 2018
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I just tried 1 of the Chinese Output tubes and it is working fine. No Hum and no burn in needed. It is taller and clearly sticks up above the transformer unlike my USA made 6080s. So if you want to get better sound from your DV, stick to the preamp 6SN7 tubes, IMHO! ;^)
Dec 21, 2018
Paraglider
64
Dec 21, 2018
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I got both my Chinese tubes in the amp now and it sounds fine! Again no burn in and no hum or issues. These do seem a little weaker in power Output. But the Chinese tubes I got with this one go plenty loud enough to destroy your hearing anyway! Maybe you got 2 good Chinese tubes like I did with this one! ;^)
Dec 21, 2018
Paraglider
64
Dec 21, 2018
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Even though I can see the quality of construction is poor, all 4 of the Chinese tubes that came with my DV amps turn out to work quite well. ;^)
(Edited)
Dec 21, 2018
2125
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Dec 23, 2018
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I usually stick with stock first get used to them before upgrading. I like to see the difference. Good to hear the Chinese tubes are good. May make them harder to spot the difference hahaha
Dec 23, 2018
Paraglider
64
Dec 23, 2018
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The 1 Chinese 6080 with the worst construction did cause a problem. Took less than 4 hours use to show.
Dec 23, 2018
2125
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Dec 24, 2018
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what happened?
Dec 24, 2018
Paraglider
64
Dec 24, 2018
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Crackling Distortion.
Dec 24, 2018
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