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Group buy: TPA3251_TPA3255 Amplifier board and ADAU1701 DSP Pre-Amp board
Group buy: TPA3251_TPA3255 Amplifier board and ADAU1701 DSP Pre-Amp board
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Old 1st January 2019, 10:06 PM   #21
A4eaudio is offline A4eaudio  United States
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Join Date: May 2017
Quote:
Originally Posted by Lo_Tse View Post
For example, why are there 4 outputs? How are these 4 outputs configured? ...Does one have to know how to use the Sigma Studio/SigmaDSP software to use this preamp? Is the Bluetooth plug and play?

Not sure whether this is the right place to ask the questions. It would be much appreciated if 3e can supply more info.
I don't know if it will answer all of your questions, but have you tried ADAU1701-2In4Out | 3e Audio ?

Also, I have emailed 3eAudio in the past and received responses fairly quickly, although this may be changing.
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Old 2nd January 2019, 01:03 AM   #22
Lo_Tse is offline Lo_Tse  Canada
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Join Date: Dec 2006
Thank you for the response! I have read all the documents that you mentioned before my last post. Those documents are essentially transcribed from Analog Devices's documentation.

It was mentioned in one of AD's document that in their eval board, there are 4 outputs, two are line level and two are amplified since there are 2 class D amps on the eval board. But I don't believe it is the case for the 3eaudio boards.

Since both treble and bass controls are on the board, I believe 3eaudio has configured the DSP chip, thus my question on the "tone profile" set up.

I don't plan to do much DSP processing. Just would like to know how to use the board properly and what should I expect.

Thank you again for your response!

Regards,
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Old 2nd January 2019, 01:11 AM   #23
elDemo is offline elDemo
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elDemo_Chile
EAUMT-0260-2-A
EAPST-0400-48-A
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Old 2nd January 2019, 04:51 AM   #24
3eaudio is offline 3eaudio
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Join Date: Oct 2014
Quote:
Originally Posted by Lo_Tse View Post
Thank you for the response! I have read all the documents that you mentioned before my last post. Those documents are essentially transcribed from Analog Devices's documentation.

It was mentioned in one of AD's document that in their eval board, there are 4 outputs, two are line level and two are amplified since there are 2 class D amps on the eval board. But I don't believe it is the case for the 3eaudio boards.

Since both treble and bass controls are on the board, I believe 3eaudio has configured the DSP chip, thus my question on the "tone profile" set up.

I don't plan to do much DSP processing. Just would like to know how to use the board properly and what should I expect.

Thank you again for your response!

Regards,
hi,please understanding this is a 2in/4out Pre-amplifier board that different with AD's eval board.
to make sure whether it can meet your expectation,please go through fully on the datasheet both of our board and ADAU1701.
regarding the DSP processing(treble and bass or others),you should also need understand the configurable of the 1701 via SigmaStudio.

Feel free to email us if there is any questions,just keep this topic for group buy.

thanks!
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Old 2nd January 2019, 02:48 PM   #25
DarpMalone is offline DarpMalone  Canada
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Join Date: Sep 2008
Location: Toronto
Group buy: TPA3251_TPA3255 Amplifier board and ADAU1701 DSP Pre-Amp board
DarpMalone _Canada
EDSP-1701-24-A opt2 - 2pcs

Thanks
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Old 3rd January 2019, 12:20 AM   #26
Lo_Tse is offline Lo_Tse  Canada
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Join Date: Dec 2006
Quote:
Originally Posted by 3eaudio View Post
hi,please understanding this is a 2in/4out Pre-amplifier board that different with AD's eval board.
to make sure whether it can meet your expectation,please go through fully on the datasheet both of our board and ADAU1701.
regarding the DSP processing(treble and bass or others),you should also need understand the configurable of the 1701 via SigmaStudio.

Feel free to email us if there is any questions,just keep this topic for group buy.

thanks!
Thank you for the response. Agreed that this thread should be kept for the GB only. I will send you the questions.

Regards,
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Old 3rd January 2019, 05:30 AM   #27
jimk04 is offline jimk04  United Kingdom
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Join Date: Jul 2018
Location: North Notts
Interested to hear the answers to the questions on adau1701...if you could share somewhere.?
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Old 3rd January 2019, 12:23 PM   #28
mk255 is offline mk255  Germany
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Join Date: Dec 2013
mk255_Germany
EAUMT-0100-4-A_1
EDSP-1701-24-A opt2_1
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Old 4th January 2019, 02:40 PM   #29
rpowell25 is offline rpowell25  United States
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Location: 94597
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EAUMT-0140-2-A_3
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Old 7th January 2019, 10:57 AM   #30
chemer is offline chemer
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chemer_Ukraine
EAUMT-0140-2-A _ 1
EDSP-1701-24-A opt1 _ 1
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