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ONKYO DP-X1 | Dual Sabre Dacs | Balanced | Sabre BTL Amp | MQA | DSD 256 | Android 5 |

Discussion in 'Portable Source Gear' started by t.r.a.n.c.e., Sep 11, 2015.
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  1. adalberto vela
    Onkyo_DPX1_screen_1.png I have my DP-X1 stacked (OTG) with the Sony PHA-3 as I love the sound from the PHA-3…I noticed something weird recently, the media volume on the sound settings affects the volume on the PHA-3…My understanding is once I’m bypassing the DP-X1, volume should only be controlled the PHA-3 with the DAP having no say in anything, so to speak..The DAP volume knob won’t operate as expected but the Media Volume on the sound settings on the DAP does…Example, if the media volume is all the way down, then no sound will come from the PHA-3, if it’s turned all the way up, the volume on the PHA-3 will have more power (louder)…This setting is from the Android settings, not the settings from the Music APP..I hope I’m explaining this correctly, attached is a picture of the setting at question:
    Last edited: Sep 14, 2017
  2. ranfan
    Last edited: Sep 15, 2017
  3. ranfan
    2.5 to 3.5 interconnect-cable can cause a short on your device. Be careful.
  4. Matrix Petka
    Problem it is with bad quality cheap socket construction - cheap plastic and tiny contacts.
    Mineral oil - BAD idea. Oil - dielectric substance. Contacts MUST be kept CLEAN. Even worse - oil can ruin plastic and socket will be breaking even faster.
    ranfan likes this.
  5. strooper
    My DP-X1A is back in Japan getting repaired because the 2.5mm gave out. No idea how long it will take. I don't anticipate seeing it before Thanksgiving...

    For when it gets back to me, I've bought a male to female 2.5mm balanced adapter that I plan to leave plugged in at all times. If I want to change phones, I will do so on the female end of the adapter, not the jack on the Onkyo. Not something anyone should have to do (or even think they should have to do), but the plugs remain fickle. Some people have zero trouble, some have no end of it.

    For what it's worth, I bought the adapter through Triton Audio Cables (the owner/maker is a head-fi regular).
  6. Matrix Petka
    2_5mm TRRS pinout.jpg

    Pin out schematics in the picture. Hope, it will help.
    ranfan likes this.
  7. ranfan
    Thanks. My guess was wrong.
    Last edited: Sep 15, 2017
  8. DecentLevi
    Sorry I'm not familiar with ACG mode, and I didn't find it when looking - please let me know. And do I need to change any setting to use balanced mode?

    Also @Duduche yeah the config of your 2.5 to 3.5mm adapter seems in question. Or I wonder if it may be a 4-pin to 3-pin adapter? Amps should generally never have the balanced mode converted to SE, which can short things out, though from the amp SE to balanced adapters do no harm just have no benefit unless out of necessity for wiring.
  9. adalberto vela
    Anybody have any thoughts on this..? Also worth noting.. it would make sense (and expect) that if DAP media volume is all the way up and PHA-3 volume all the way down, there is zero sound..it sort of acting like a gain level, etc.
    Last edited: Sep 14, 2017
  10. Matrix Petka
    You should go to Settings --- Sound&Notifications --- Output select --- A.C.G. (another option - Balanced). ACG it is modification of Balanced output which have 180 degrees inverted signal on ground wire.

    About adapters. You can connect balanced wired headphones through adapter to SE, but not vice versa (you will short amplifier).
    DecentLevi likes this.
  11. Matrix Petka
    For better results try direct transfer - in Setings - Sound settings turn on DSP function, External device - USB audio. On PHA 3 you will get 2 green lights HiFs and DSD. One thing - you will get fixed line out, if you turn volume knob on Onkyo there will be interuption in the sound and some kind of noise. Get back to max volume (160) and playback will be fine.
  12. adalberto vela
    Thanks, I may check into that in the future but for now I'm just trying to check into why the media volume is sort of determining gain/loudness of the PHA-3..A few notes:

    It is connected through OTG micro to micro..

    The volume knob on the Onkyo does not operate (as it shouldn't) when running with the PHA-3...Only the media volume plays a part in the PHA-3 volume loudness/gain. If the Onkyo media volume is all the way up and PHA-3 is all the way low, no sound comes out, which is good I guess as I know the Onkyo is not fully controlling the volume..So depending on where I set the media volume, that will determine how loud the volume will on the PHA-3, strange I know...

    DP-X1 (without PHA-3) upsamples all flac 44khz to 48khz as shown on the Onkyo screen and specs..Operating with the PHA-3, the Onkyo screen shows at 44khz, which makes sense as PHA-3 does play 44khz..

    All in all, I'm just trying to confirm if I'm indeed bypassing the Onkyo's amp/dac and operating the PHA-3's amp/dac..Would love to get some thoughts/feedback..Thanks in advance!!
    Last edited: Sep 14, 2017
  13. guliver
    I just got a Focal Elear because of the $300.00 discount this month I was mostly curious but this headphone is just incredible and is pairing perfectly with the Onkyo even without amp although for sure is not very portable but for around the house is perfect my best sounding HP so far also should be very easy to make a balanced cable for it..
  14. Matrix Petka
    Onkyo - Balanced (silver) - Focal Elear = Sweet treat to your ears. Gratz!
  15. addyg
    Actually it is the digital volume of the dac you are controlling. The volume dial is digital. There is an option in Music which gives you control of digital volume.
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