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QLS QA361 impression thread

Discussion in 'Portable Source Gear' started by audionewbi, Dec 1, 2017.
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  1. Dobrescu George
    Seems I keep QA361 on High current and high voltage for almost all headphones and IEMs, most stuff seems to sound better that way :)

    What dots? I don't know what that's all about? :)
     
  2. fzman Contributor
    They are damping materials that have been on the market for quite some time. Here's a link with some information. http://marigoaudio.com/tuning-dots/ I have used them to good effect on a number of components. I was very happy with the results on the 361
     
  3. noknok23
    How is the build quality of this device? Does the headphone jack and usb port can endure some stress? Does the battery age well? Is it user serviceable?
     
  4. Dobrescu George
    I am not sure if it is user serviceable, but after one month and a half, there's literally no sign of usage on my unit.

    And it is one of the two DAPs I really abuse because I love its sound, and like it for portability :)

    The jacks and USB port are both well made and feel trustworthy, metallic build quality.
     
  5. subguy812
    The QLS QA361 is a serious DAP. Amazing what a reference DAP this truly is. The power to drive is incredible for a portable device.
     
    Last edited: Jun 28, 2019
    denis1976 likes this.
  6. denis1976
    IMG_20190511_222114.jpg Drives the 400i at 38/100 volume at balanced high gain and current... The power is amazing
     
    Dobrescu George and hqssui like this.
  7. Dobrescu George
    Yep, this is one of the pairings I love it in the most! :)
     
  8. fzman Contributor
    I have been going back and forth between this and the Dethonray Prelude, and am loving both of them. I wonder how much of their excellence is design/parts selection, and how much is the 'Rain Man' limited functionality.... Any thoughts?
     
    NotKunvinced likes this.
  9. subguy812
    I am trying to get a Prelude. There appears to be many similarities. I love the QA361. It is a true reference DAP with super fast UI, what little UI there is. The sound quality is sublime whether you're using it single-ended output or balanced.
     
    Last edited: Jun 28, 2019
    pitsel and denis1976 like this.
  10. audionewbi
    I've been playing around with plugging external power bank while having the charging switch off.
    I think the rumours that external linear PSU FURTHER enhancing the sound is true.
    I hear changes but so far negative. I'll keep experimenting.

    The significant benefits so far is unit runs much cooler using external power banks.
     
  11. Whitigir
    What power supply are you trying to plug in ?
     
  12. audionewbi
    I'm just using a simple Sony external power bank. Idea of having linear PSU for a portable DAP is a little silly for me, as it defeats the purpose. I'm told Anker powercore+ are much better, but who knows.
     
  13. Whitigir
    Theoretically speaking, the only thing that is closer or better than a direct battery placement would be Linear ultra low noises PSU....depends on the designs and components being used. Anyways, you can find those Linear PSU on eBay for cheap. I don’t doubt your experiments with the device turned negatives according to what you have been using :)
     
    audionewbi likes this.
  14. seeteeyou
    I saw that @audionewbi was asking for a better power supply unit here

    http://www.qlshifi.com/bbs/dispbbs.asp?boardid=5&Id=6895&authorid=11054

    Maybe not the most portable option but here it is

    https://audiophilestyle.com/forums/...reaming/page/368/?tab=comments#comment-862766

    A123 Systems 18650 batteries

    https://www.ebay.com.au/itm/12-x-A1...ePO4-Li-ion-batteries-with-cases/252966671757
    https://www.batteryspace.com/A123-S...PO4-18650-Rechargeable-Cell-3.2V-1100mAh.aspx
    https://www.buya123products.com/goodsdetail.php?i=2

    The board itself is quite expensive on eBay

    https://www.ebay.com/itm/LT3045-fou...ower-supply-5V-2A-Upgrade-LT3042/132990922535
    https://www.ebay.com/itm/LT3045-fou...ower-supply-5V-2A-Upgrade-LT3042/254275619802
    https://www.ebay.com/itm/LT3045-fou...ower-supply-5V-2A-Upgrade-LT3042/273135946356

    The original seller on TaoBao is here

    https://item.taobao.com/item.htm?id=565126246341



    Transportable options that are fairly pricey

    https://www.ciunas.biz/product-page/iso-ps
    https://www.ciunas.biz/product-page/iso-ps-ultracapacitor-power-supply
    http://www.tirnahifi.org/forum/viewtopic.php?t=4652
    https://pinkfishmedia.net/forum/threads/supercapacitor-power-supply-tour.223681/
    https://pinkfishmedia.net/forum/threads/tour-of-supercapacitor-powered-audio-devices.223682/



    The entire thread is more like a whole can of worms for desktop rigs, though best of the best LPSU options were mentioned recently

    https://audiophilestyle.com/forums/...reaming/page/577/?tab=comments#comment-967889

    This is what they're talking about

    https://www.kempelektroniksshop.nl/farad-super3-power-supply.html
    https://www.faradpowersupplies.com
     
  15. Whitigir
    Nice find, allow me to grab your post and link it toward the DMP folks. It has a huge improvements with LPSU
     
    Sp12er3 likes this.
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