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Nada last won the day on June 1 2013

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About Nada

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  1. With your Sony headphones running on bluetooth you will get inferior sound from most stand alone bluetooth units. The best sound with those headphones is via LDAC. For that you want an Android 8.0 plus device that has LDAC enabled and the app set for high quality. Its all detailed in the specs.
  2. 1. the best sound with those headphones is via LDAC for bluetooth needing an Android 8.0 plus source and the app set for high quality. A high quality DAC as source is irrelevant. 2. stick with the long cable
  3. What exactly are you missing? In order to dial in the sound you like its vital to clarify that. Some find noise modulating DA processes like the Chord lack a sense of impact or dynamic grip and then find some R2R based DAC that satisfies. Others find without tubes there's a lack of body or grip in the timbre. Others find all DAC's sound the same and rely on lab measurements. Maybe what matters is what you have experienced and identify what you want?
  4. Sensational project. What would you suggest for a complete budget to replicate your dedicated build, with all equipment and full install all done professionally?
  5. Im an IT idiot but I read there is no such thing as bit stripping: Digital volume attenuation does not change bit depth. If its a 24 bit PCM code and the volume is attenuated by 60 dB the PCM is still 24 bit encoded. No bits are stripped. The problem is the DAC SNR output will be compromised as the low signal sinks into the noise floor. If the DAC has a base 120dB SNR with a 0dB digital input and the digital stream is put through digital volume control at say -60dB the SNR (depending on the DAC architecture) will sink to only 60dB. Gain matching is vital using digital volume. This means its immaterial using 24 bit, 32bit or 64 bit digital volume control. The idea of 32bit being superior is just myth. Anything over 21bit exceeds any DAC technical limits with bits to spare. So 24bit is plenty.
  6. For your speakers to do DSP any analogue input will need go to an ADC.
  7. The DAC looks great. It looks like it has a very nice tube preamp in it. What is the preamp you used after the fixed output that sounded better? If the fixed output sounds better it may be about gain structure in the DAC. The volume pot probably cuts the signal going into the tube stage. That drops the SNR. The best passive pre in that case is a TVC. High gain is turned into lower impedance current drive. https://mfaudio.co.uk/preamplifiers/
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