New Amp from HeadAmp - 'GS-1 Mk2' or 'GS-X Mini'

Discussion in 'Headphone Amps (full-size)' started by Rhamnetin, Jul 8, 2018.
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  1. Rhamnetin
    A new dynamic amp from HeadAmp is inbound. It is currently unknown whether it will be called the GS-1 Mk2 or GS-X Mini.

    Last I heard, it was expected to release this year. It is a balanced solid state headphone amplifier based on the class A "Dynalo" circuit designed by Kevin Gilmore (read more) which is one of the best headphone amp circuits ever designed, the same basic circuit used in HeadAmp's flagship GS-X Mk2 and also the Gilmore Lite Mk2.

    This new amp is able to convert single ended input into balanced (it hasn't been stated just how it does this yet, but these days Dynalo builders are using the "Super Symmetry" design as Nelson Pass calls it). A DACT balanced stepped attenuator will be an option.

    Price is unknown. The original HeadAmp GS-1 was $749 for reference but I am GUESSING this one will cost more. Here are photos of a prototype which Justin posted today:

    [​IMG]

    [​IMG]

    I will continue to update this thread with more details as they are announced. It has been a long time coming. I would say the original GS-1 still surpasses pretty much every solid state headphone amp below $1,200-1,500, it was surely missed.
     
    Last edited: Jul 12, 2018
    purk and Alcophone like this.
  2. whirlwind
    I will be watching this thread. Good stuff!

    GS-X Mk2 is the only SS amp that has really had me interested in any SS amp. I have been close to purchasing one.
     
  3. MacedonianHero Contributor
    Most excellent! I was a big fan of the GS-1, glad to see it make a comeback!!!
     
  4. Rhamnetin
    Also for reference, the new one looks quite a bit bigger than the old. Here is the original:

    [​IMG]

    The original GS-1 is still in the very top tier of single ended headphone amps for those who don't know. If you find a used one for a good price, don't hesitate.
     
    mulveling and Alcophone like this.
  5. justin w. Contributor
    it's about 1" wider, dimensions are very close. Currently, i am not sure if this will be a GS-1 mk2 or a GS-X mini. It is a little of both, and also some stuff that is entirely new.

    The DACT will be an optional volume control, same as on the original GS-1. The parts are currently being powder coated, but when I have them back I will take a picture of the original vs new side by side.
     
    bahamot, Valens7, DarKu and 3 others like this.
  6. Rhamnetin
    Thanks for the reply. I will edit the thread title to better reflect the undecided name of this amp.
     
  7. MacedonianHero Contributor
    So glad to see the GS-1 (or GS-X mini) come back! The original was one of my favourites!
     
  8. mulveling Contributor
  9. DarKu
    Could you please picture it near a GS-X Mk2 as well?
    Much appreciated.
     
  10. BLacklWf
    Dear HeadAmp - will you please consider making a power amp version without the volume control? Since many DACs these days have the volume control, I think it makes a sense for the power amp version which would benefit from the reduced components/cleaner signals.

    Nice quality looking inside by the way. I'm subscribed!
     
  11. avsmusic1
    subbed
     
  12. DarKu
    Still waiting for those pics...
     
  13. Rhamnetin
    In hindsight, it's hard to believe the GS-1 was $750. Most other companies would build an inferior version of the amp and charge double. Now that price range is pretty much a void as far as solid state amps go.
     
  14. Sonic Defender Contributor
    Not to be whatever, but could you provide an example of an amp with very similar parts, total bill of cost that retailed for double.
     
  15. Rhamnetin
    The math wouldn't add up exactly to that specific example but I think you get the overall point; the profit margins on the GS-1 seem surprisingly low to me. Compare the GS-1 for $750 to similarly priced portable amps from RSA. Also things like seeing very similar power transformers and Alps RK27 volume pots in amps over 3x the cost.
     
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