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  1. NielsMayer

    Fiio K19 looks like a versatile beast

    My new M23 is pretty sweet. There are some pretty ret*rded one-star reviews out there. I'd give it a 4-star. 5-star for sound and features. -1 star for lack of obvious features in an android handheld device -- rotation sensor (to allow landscape orientation, which is disabled), luminance sensor...
  2. NielsMayer

    Akitika GT-108 Stereo Amplifier Kit Review

    I wonder how this amp compares to my old B&K ST202+ MOSFET amp? (Sitting in my garage, unused, I've been using my Hypex NC400 monoblocks for years). Has the B&K ST-202+ been measured yet? It would be interesting to see the performance of this old design vs this strange "modern design" amp kit.
  3. NielsMayer

    Hidizs MP145 IEM Review

    I just noticed that the latest wavelet update removed all the MP-145 settings previously available (w/ different EQs for the three different tips) -- all of which sounded terrible.
  4. NielsMayer

    Hidizs MP145 IEM Review

    I was trying to estimate the maths on this and came up confused because we don't know the speed of sound in the membrane versus air. Trying to find some articles related to this left me even more confused: https://ieeexplore.ieee.org/document/1621496 Vibration of micromachined circular...
  5. NielsMayer

    Hidizs MP145 IEM Review

    I think one of the reasons for such good soundstaging is no crossover and a driver that can handle full-range audio in a single unit. Aka no phase disturbances, which audio engineers seem to ignore, since they labor under an incorrect assumption that imaginary numbers cannot be "heard" and then...
  6. NielsMayer

    Hidizs MP145 IEM Review

    The only problem with this IEM is the mention of "driver flex" found in one review https://www.amazon.com/dp/B0CPSC2P5Q?ref=ppx_yo2ov_dt_b_product_details&th=1#customerReviews Pros: Sound terrific. Decent cable. Sound noticeably alters depending on ear tips used. Bass is very good and treble is...
  7. NielsMayer

    Fiio btr15

    FYI there is a new update to the firmware and additionally XMOS USB update: https://forum.fiio.com/note/showNoteContent.do?id=202312201447233677679&tid=77 "BTR15 Bluetooth V3.5 firmware and XMOS V125 download link and update instruction" Note that the XMOS V125 update requires connection to a...
  8. NielsMayer

    Truthear Nova IEMs

    I picked up these https://www.amazon.com/gp/product/B0B3JNLG71/ which claims 1.2m for $15.99. I like the Zoe. A well-constructed lightweight cable. The iridescent look of the wires inside the clear cable is interesting and different than a lot of cables. Most important, the Zoe cable is...
  9. NielsMayer

    Artists You Have Discovered Lately

    "Black Pumas - More Than A Love Song (Official Video)"
  10. NielsMayer

    Truthear Nova IEMs

    Thanks for this. Looks like something i can dial-in to the built in PEQ on my new Fiio Btr15 that I'm using to drive the Truthear Novas with an aftermarket 4.4mm balanced cable (Tripowin Zoe on Black Friday Sale) just for some unnecessary overkill. (Now my Zero Red inherited the stock Nova Cable.)
  11. NielsMayer

    Truthear Nova IEMs

    FYI, wavelet now has three truthear nova eqs -- both the foam and silcon tip EQs have none of that severe 8k peak, having a rolloff instead. The third EQ which does not specify tip indicates a boost similar to that 8k peak from the previous poster's EQ. (I'm using the foam tip which is p'haps...
  12. NielsMayer

    Truthear Nova IEMs

    Just tried this on my LGV60 with Fiio BTR15 (low gain mode) --> 4.4mm balanced cable (Tripowin Zoe) -->Truthear Nova. (which sound excellent on their own without EQ). I'm not sure I like that 8k peak though. It was shocking at first, but now I'm getting a little used to it, but it seems like it...
  13. NielsMayer

    AES-3 via AES-3/RCA-RME-adapter to RME ADI-2 DAC FS causes sound dropouts

    So i made my own transformerless cable which basically puts the coaxial signal to pin 2 (+) and the coaxial shield to pin 3 (-) while floating the ground (pin 1). I then got the same results with the shield and - connectected together and just Pin 2 driven. In both cases it works and doesn't...
  14. NielsMayer

    AES-3 via AES-3/RCA-RME-adapter to RME ADI-2 DAC FS causes sound dropouts

    Nope... the Neutriks also have a 6Mhz bandwidth too -- "SPDIF spec compliant" but useless for anything above 48k. https://www.neutrik.com/en/product/naditbnc-mx "Frequency range 0.1 - 6 MHz"...
  15. NielsMayer

    AES-3 via AES-3/RCA-RME-adapter to RME ADI-2 DAC FS causes sound dropouts

    I too had similar problems using a prewired and too-long Canare Rca->XLR AES/EBU cable i had laying around. Switched back to a Sescom transformer ( https://www.amazon.com/gp/product/B00JZT65CE ) and a 1.5 ft male-male AES/EBU cable and it seems to work w/o dropouts. And I thought it was...
  16. NielsMayer

    USB to SPDIF converter for Nvidia Shield Android TV

    Just got a "Douk U2 Pro" ( http://amazon.com/gp/product/B08HN3VSF8 ) plugged it into the IIS input of Topping DX7 Pro without changing anything and it works perfectly. I'm using some no-name spare HDMI cable (the kind included with a computer monitor) between U2Pro and Dx7Pro. The U2Pro sounds...
  17. NielsMayer

    Topping DX7 Pro DAC and Headphone Amp Reviewed

    Sure ... Use it with a pro device or add a transformer to talk spdif over 75 ohm coax.... https://www.amazon.com/Neutrik-NADITBNC-M-BNC-XLR-Converter/dp/B07GSHFKB9/ Cheaper from sescom tho 'gender' of xlr is wrong...
  18. NielsMayer

    Topping DX7 Pro DAC and Headphone Amp Reviewed

    Is it a Samsung TV?? My cheap/discounted/dropped-in-shipping/accepted/discounted-some-more 4k samsung does this on optical out. I'd have returned it, but given that it ended up less than $200 plus some tactfully placed electrical tape over the cracks :-) , and mostly works, i'd rather keep it...
  19. NielsMayer

    Topping DX7 Pro DAC and Headphone Amp Reviewed

    looks like 11/11 sales have the dx7pro down to $515.99
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