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ampsandsound (aka Amps & Sound)

Discussion in 'Headphone Amps (full-size)' started by luckbad, Mar 21, 2016.
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  1. exdmd
    Justin will a 12AU7 work as well with a Kenzie? I already have an adaptor and I could use more range on the volume pot I max out at 9 AM. If so do you have a recommended 12AU7 you like for the Kenzie, I will give it a try. I have lately been using an RCA grey glass 12SL7GT but am always looking forward to trying new tubes. I was lucky to find a stash of Tung Sol 1626s that should last me for a few years.
     
    Last edited: Nov 9, 2019
  2. vonnie123
    Any of the 12A_7 family should work fine. 12AU7, 12AT7, 12AX7. Varying degrees of amplification. The 12AT7 is my preferred of that group. Also check out 2C52.
     
    exdmd likes this.
  3. vonnie123
    Also, take a look at an octal to noval adapter for the 12B4A output tube. This will double your output power. Super inexpensive tube too. Justin USED to sell the 12B4A adapter setup and tubes on his website.
     
  4. Bonddam
    What is the 12A_7 responsible for?
     
  5. vonnie123
    ED4993CE-88B2-46E9-8402-B307CD57D545.jpeg
    12A_7 is a single input tube on the Kenzie, Kenzie Encore that can be used in place of 12SL7/2C52 with an octal to noval adapter.

    This is a photo of my Kenzie Encore with a n adapter and 12A_7 family type tube.....output tubes pictured are 1626.

    The black device is a Bryston BDP-1 media player.
     
    Last edited: Nov 9, 2019
  6. Bonddam
    So is input tubes responsible for gain? I'm using 12AU7 on my Pendant.
     
  7. ampsandsound
    It will will the correct adapter. I have a few great adapters. I’ll look tonight and post them.
     
  8. ampsandsound
    Yes it is... input and gain.
     
  9. ampsandsound
    Love your feet. The look super cool.
     
    vonnie123 likes this.
  10. ampsandsound
    Hey guys as general heads up. I’m dyslexic as the day is long. You’re likely to get longer more expansive responses with a call. My new number is 949-636-9076. It’s listed on the site too.

    Separately, the Pendant is a very quite tune amp when you look at measured performance. That said closed back orthodynamic headphones couple high efficiency and noise isolation. System matching and proper setup become even more important. Use of Ethernet over WiFi is a solid no go and consideration re distance to a WiFi broadcasting device is important.
     
    Wes S likes this.
  11. vonnie123
    Last edited: Nov 10, 2019
  12. vonnie123
    https://frank.pocnet.net/sheets/191/6/6201.pdf

    Here’s a website that has some good tube data. The bottom of the page has the 12A_7 data listed by variant. Compare the amplification factor and that helps compare gain between tube series. I have a bunch of these 6201 tubes, which are basically 12AT7. They were made for some very old HP computer equipment. There are multiple tube substitutions and sometimes you can save money purchasing by using an extremely similar low demand vacuum tube.
     
    Last edited: Nov 9, 2019
    omniweltall likes this.
  13. exdmd
    Thanks I have used 12B4A and prefer the Tung Sol 1626. I don't need more power for the HD800S. Besides, once Schiit gets the Jotunheim R in production it will be hard for me to resist buying the Raal SR1a ear speakers. To afford those I would be selling my Kenzie, HD800S and might have to down grade my Yggdrasil to a Bifrost 2.
     
    Last edited: Nov 10, 2019
  14. vonnie123
    I like both output tubes, and switch them up from time to time. My problem is I have trouble selling my headphone stuff once I buy it. I just buy more of it. I thought about selling my Audeze LCD-X the other day, and spend all night listening to them......and decided to keep them.:smile_phones:
     
  15. me2621a
    Hey guys,
    Just wanted to let everyone know that I will be posting my Mogwai SE (8/32/300 ohm taps) for sale in the next few days. If you are interested please reach out to me through a PM as I think it will go fast once it is posted. I will be using the money to purchase something else from Ampsandsound :)
     
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