Welcome, Guest
Username: Password: Remember me

NOTE: This is a "Community" forum. Please be mindful that community members are here to help as part of a community effort. We therefore appreciate your effort in keeping this forum a happy place!

If you have a specific issue (e.g. hardware, failure) and want help from our support team, please use our tech support portal (Support menu - > Contact Us).
Thanks a lot of your help in making a better community.
  • Page:
  • 1

TOPIC:

Poor Independent Measurement of UDAC8 3 years 3 months ago #49115

  • datrumole
  • datrumole's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0
www.audiosciencereview.com/forum/index.p...sb-dac-review.10123/

Can you comment further on the poor performance on the DAC side of the equation? is this something the firmware could address? getting significantly below chip spec of 93db SINAD

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 3 years 3 months ago #49350

  • datrumole
  • datrumole's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0
no updates here?

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 3 years 2 months ago #49803

  • G27
  • G27's Avatar
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0

no updates here?


Last I read on the topic was that miniDSP was supposedly trying to source some testing equipment for their analyzer so they could repeat ASR's tests. Haven't seen anything since that.

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 3 years 1 month ago #50441

  • datrumole
  • datrumole's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0
still nothing i take it....ugh

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 2 years 10 months ago #51706

  • datrumole
  • datrumole's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0
seems like they just make products, but then don't support them?

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 2 years 1 month ago #56341

  • datrumole
  • datrumole's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0
jeez, they really dont follow this forum do they

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 2 years 1 month ago #56342

  • mdsimon2
  • mdsimon2's Avatar
  • Offline
  • Elite Member
  • Elite Member
  • Posts: 262
  • Thank you received: 102
6 posts on the forum with 5 of them in this thread, thank you for your outstanding contributions to the community.

Not sure what performance you expected when miniDSP advertised THD (not THD+N) at 0.006% (-84 dB), eyeballing the ASR measurements performance seems pretty close to that. This DAC was never going to be world beater and was never advertised as such.

Michael

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 2 years 1 month ago #56343

  • datrumole
  • datrumole's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 0
ha, yikes, hope feeling superior to people online validates you in a way life clearly cannot

i posed a question for something clearly none of us at home can measure. it even appears miniDSP doesnt even have the equipment to reproduce based on another comment (dependent on his comment being actually true). so why am i being chastised to ask a company to stand by a spec they clearly missed (15db off the chip spec) and 6db off what was measured by an independent measurement vs what they advertised. what if miniDSP found a bug or error that was easily remedied and we all win?

and it might have occurred to you, that this is the only product of theirs i own, why would i be a contributor, to a forum for products i dont own? ease up buddy, it's just a question, and it's take 8mo to even get your response, let alone anyone from miniDSP to even acknowledge (which they still havent). people come here for support from minidsp, and potentially the community. this IS going to be filled with criticism and challenge from the people who spent their money on these products

Please Log in or Create an account to join the conversation.

Poor Independent Measurement of UDAC8 2 years 1 month ago #56344

  • mdsimon2
  • mdsimon2's Avatar
  • Offline
  • Elite Member
  • Elite Member
  • Posts: 262
  • Thank you received: 102
Speak for yourself about not being able to make measurements, pretty trivial to do (especially at this level of performance) with less than $200 of equipment. See attached for my measurements of an OpenDRC-DA8 (which uses the same miniDAC8 as the UDAC8). Pretty darn similar to ASR and certainly not a surprise to me based on the published specifications from miniDSP.

 

Do you understand the difference between THD and THD+N? miniDSP did not specify THD+N so I do not see how you can say they missed their own spec by 6 dB, the ASR measurements exactly match the miniDSP spec for THD. Chip spec does NOT equal miniDSP spec, this is clear, not to mention that 93 dB is typical chip spec, min chip spec is 84 dB.

I am sorry if this comes off as rude but I have little patience for people that complain about measurements when they clearly do not understand them. Especially when they match what the manufacturer provides. If you bought a UDAC8 expecting different performance that is 100% on you for not being able to understand the miniDSP specifications.

Michael


 
Attachments:

Please Log in or Create an account to join the conversation.

  • Page:
  • 1
Moderators: devteam