2359glenn | studio

Discussion in 'Headphone Amps (full-size)' started by silent one, Mar 9, 2012.
  1. UntilThen
    Listening to Sam Cooke now. Bringing it home to me. Beautiful simply beautiful. It can't get better than this. The 6sn7s deserves another photo.

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  2. jekjek
    UT, how about 6 foton 6SN7?
    A cheap alternative to 6bx7
  3. UntilThen
    That will work for sure but I have only 2 Fotons. :smile_phones:

    You could use 7 ordinary 6sn7gtb and it should still sound good. I'll take out the prima donnas in a minute and swap in the cheap tubes just to prove. :smile_phones:
  4. UntilThen
    Cheap tubes are in and sounding good. If you know the characteristics of each 6sn7s, you can combine for a pleasing effect or create the tone that you desire. After a while, you will know that each 6sn7 type and brand have their own unique tone. Some are brighter. Others are warmer, lusher and more solid in bass.

    Driver - Psvane 6SN7 uk edition - good bloom and bass
    1st pair - Sylvania 6sn7gtb chrome top - light tone
    2nd pair - Fotons - mid heavy tone
    3rd pair - RCA 6sn7gtb - middle of the road

    The amp has been outstanding with all the tubes I've rolled thus far. Not a single one hum or has any noise but then I keep only the good tubes and I usually buy new NOS tubes. All these tubes used here I'd consider cheap but still good.

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    jekjek likes this.
  5. UntilThen
    I'm using HD800 with all these listening test and bass is ample and has a good kick. Bare in mind though that if you like deep hard impact, you would have to go to the 6BX7. Bass there is in another league. Apart from that Seven 6sn7s sounds great.
  6. UntilThen
    I bet the GOTL with all 6sn7s is as cool as the GEL3N now. :ksc75smile: Placing my palm on the Lundahl transformer and it feels cool.
  7. UntilThen
    This amp will sound good with cheap tubes but give it some love if you can. Performance grows with better tubes used and this amp deserves it. This weekend has been a special one for me. I have the luxury of listening to music uninterrupted apart from a dinner outing with my family yesterday. I'm in awe with what I'm hearing from this amp. I realise I have not power on my lounge stereo system for 5 days now.
  8. UntilThen
    Time to finish off for the night but not before my last thoughts for the weekend.. After some time with various combinations, I returned to C3G and 6BX7 and realised how special this combination is. Whilst all the other combinations are good, the C3G and 6BX7 just stood out for me. Now over to others to share their impressions.
  9. 2359glenn
    When I built the first OTL I used the cheapest tubes Russian 6H13 and 1633 $4 and this sounded great.
    I really never upgraded tubes eventually I tried the 13D1 but never changed the output tubes. Sounded great
    with these low cost 6H13s.
    It could only use the 25 volt SN7s 1633 & 13D1 but the 1940s 1633 sounded up there with the best SN7s for $4
    rnros likes this.
  10. jekjek
    Any difference between 6H13s and 6N5S Glenn?
  11. 2359glenn
    Not really sure I think they are pretty close.
    Never tried the 6N5S
    Last edited: Dec 17, 2017
  12. jekjek
    Thanks Glenn, I might want to purchase a pair for the curiosity sake
  13. TonyNewman
    No more love for the 300B. :triportsad:

    Glenn - are you still getting orders for it?
  14. UntilThen
    Someday... :) but for now I want to soak in the euphony of the OTL. Glenn's statement of work must be something. That's what Stavros told me anyway.
  15. UntilThen
    One more experimental time exposure of the glowing GE 6BX7gt. Will need @Hansotek to do a professional job.

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    Last edited: Dec 17, 2017

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