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#275521 - 2018-04-27 09:08 MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface
Registered: 2018-04-11
Posts: 46
Alikris Offline
Mostly harmless
Alikris Offline
Mostly harmless

Registered: 2018-04-11
Posts: 46
Loc: Northumberland, UK
I see that a few months ago MiniDSP released a new product, the U-DIO8 Multichannel USB to AES-EBU or SPDIF interface.
Originally Posted By miniDSP
The miniDSP UDIO-8 is a pocket size USB Asynchronous interface with support for up to 8 channels of audio recording and 8 channels of playback. Inputs and outputs are digital and available in 2 versions (AES/EBU or SPDIF). A standard TASCAM pinout DB-25 connector to XLR (AES-EBU version) or DB25 to BNC (SPDIF version) is used for connectivity.

Thanks to 8 channels of high quality sample rate converters on all inputs, the UDIO-8 supports recording of any input rate (44.1~192k). On the output side, the digital output matches the playback sample rate selected in the driver.

The UDIO-8 is an ideal solution for high-resolution multi-channel audio, computer-based (HTPC) home theater, live sound, surround-sound mixing and mastering.
So it looks like finally there is a cost effective way to hook up a computer using a 5.1 channel digital output to the multiple SPDIF input of a Meridian Processor. A USB to SPDIF audio only alternative to an HD621!

I wonder has anyone tried this yet? I'll definitely be buying one later this year.

Ali.


Meridian G61R, Behringer A500 amps & DEQ2496 DSP, MiniDSP U-DIO8 audio interface, B&W DM2 Mk2 Speakers (3 pairs), Sony CD, Sony DAT(x3), Alesis Hard Disk Recorder, Sony APR5003 Reel to Reel Recorder. Akai AT93 Tuner & GX-95 MK2 Cassette Deck, Technics SL-1200 Turntable, Valve Phono stage, Denon DL-110 cartridge.

Ambisonic user since the 1980's
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#275522 - 2018-04-27 09:15 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Alikris]
Registered: 2001-05-23
Posts: 2,828
Gianni Offline
Great Green Arkleseizure
Gianni Offline
Great Green Arkleseizure

Registered: 2001-05-23
Posts: 2,828
Loc: North London, United Kingdom
It seems to offer 8 discrete channels of digital output on BNC. The Meridian multi-channel processors expect multiple stereo channels on their digital inputs. If the device can combine channels correctly it would be rather useful, otherwise I cannot see a way of integrating it without further boxes. The AES/EBU outputs seem to be stereo digital feeds - is there a way of converting those to SPDIF passively?


"Wonderful perfect quadraphonic sound with distortion levels so low as to make a brave man weep" - Prostetnic Vogon Jeltz of the Galactic Hyperspace Planning Council
Edited by Gianni; 2018-04-27 09:19. Edit Reason: Aded thought about AES/EBU
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#275523 - 2018-04-27 09:22 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Gianni]
Registered: 2004-08-07
Posts: 7,733
Ian Offline
President of the Imperial Galactic Government
Ian Offline
President of the Imperial Galactic Government

Registered: 2004-08-07
Posts: 7,733
Loc: Surrey, England, UK
May be all good - the Tascam interface is input and output so 8 plugs is 4 in and 4 out, ie hopefully 4 x stereo each input/output Tascam - DB-25_Pinout.pdf.

Needs confirming though.


Meridian owner since 1992
Prime & PSU, Focal Elear headphones, roon (ROCK 8Gi5 Nuc), Explorer 1 & 2, F80. Gathering dust - 200/203, MC200 and various Sonos.
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#275526 - 2018-04-27 09:54 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Ian]
Registered: 2018-04-11
Posts: 46
Alikris Offline
Mostly harmless
Alikris Offline
Mostly harmless

Registered: 2018-04-11
Posts: 46
Loc: Northumberland, UK
Yes, it's four two channel inputs and four two channel outputs. The snake is available with XLR connectors (AES/EBU) or BNC (SPDIF)

In the software one can choose which of the 8 outputs is assigned to what channel (front right, rear left, centre etc.

The user manual is available at USER MANUAL

Ali.


Meridian G61R, Behringer A500 amps & DEQ2496 DSP, MiniDSP U-DIO8 audio interface, B&W DM2 Mk2 Speakers (3 pairs), Sony CD, Sony DAT(x3), Alesis Hard Disk Recorder, Sony APR5003 Reel to Reel Recorder. Akai AT93 Tuner & GX-95 MK2 Cassette Deck, Technics SL-1200 Turntable, Valve Phono stage, Denon DL-110 cartridge.

Ambisonic user since the 1980's
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#275527 - 2018-04-27 09:55 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Ian]
Registered: 2001-05-23
Posts: 2,828
Gianni Offline
Great Green Arkleseizure
Gianni Offline
Great Green Arkleseizure

Registered: 2001-05-23
Posts: 2,828
Loc: North London, United Kingdom
Thanks Ian.

The manuals and product specification seem to hint at that for the BNC/SPDIF option, the AES/EBU option is clearly that format.


"Wonderful perfect quadraphonic sound with distortion levels so low as to make a brave man weep" - Prostetnic Vogon Jeltz of the Galactic Hyperspace Planning Council
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#275528 - 2018-04-27 10:13 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Gianni]
Registered: 2018-04-11
Posts: 46
Alikris Offline
Mostly harmless
Alikris Offline
Mostly harmless

Registered: 2018-04-11
Posts: 46
Loc: Northumberland, UK
Just to clarify, there's two output options, you specify the output at time of ordering. Either AES/EBU format on XLR or SPDIF format on BNC. As they say:
Quote:
To insure correct impedance matching, note that UDIO comes in two versions. (AES-EBU or SPDIF) with different internal PCB assemblies. Please make sure to select the correct format you'd like to use.
So the SPDIF output is genuine SPDIF format. You can't just change the AES/EBU snake for a SPDIF snake or vice versa.

The user manual only shows the AES/EBU connections.

Ali


Meridian G61R, Behringer A500 amps & DEQ2496 DSP, MiniDSP U-DIO8 audio interface, B&W DM2 Mk2 Speakers (3 pairs), Sony CD, Sony DAT(x3), Alesis Hard Disk Recorder, Sony APR5003 Reel to Reel Recorder. Akai AT93 Tuner & GX-95 MK2 Cassette Deck, Technics SL-1200 Turntable, Valve Phono stage, Denon DL-110 cartridge.

Ambisonic user since the 1980's
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#278702 - 2018-08-29 21:54 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Alikris]
Registered: 2005-09-14
Posts: 843
Kal Rubinson Offline
Pan-dimensional being
Kal Rubinson Offline
Pan-dimensional being

Registered: 2005-09-14
Posts: 843
Loc: NYC/CT, USA
Greetings!

I reported on this new device in the September Stereophile and, indeed, it should be an excellent and cost-effective PC/Streamer interface into an 861. Unfortunately, I no longer have an 861 to try it.

FWIW, the AES/EBU and SPDIF versions differ in the I/O board used but, otherwise, operate identically.


(Sad note: I sold my 861 because I had lost all hope of such a facility. I detected no interest from Meridian in creating it. frown )


Kal Rubinson
"Music in the Round"
Senior Contributing Editor, Stereophile
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#278776 - 2018-09-06 21:41 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Kal Rubinson]
Registered: 2005-09-14
Posts: 843
Kal Rubinson Offline
Pan-dimensional being
Kal Rubinson Offline
Pan-dimensional being

Registered: 2005-09-14
Posts: 843
Loc: NYC/CT, USA


Kal Rubinson
"Music in the Round"
Senior Contributing Editor, Stereophile
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#282794 - 2019-02-14 18:32 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Kal Rubinson]
Registered: 2018-04-11
Posts: 46
Alikris Offline
Mostly harmless
Alikris Offline
Mostly harmless

Registered: 2018-04-11
Posts: 46
Loc: Northumberland, UK
Sorry for not replying sooner. Yes I found your review very interesting, thank you Kal.

I've finally just bought one direct from MiniDsp grin £265.38 including postage.


Meridian G61R, Behringer A500 amps & DEQ2496 DSP, MiniDSP U-DIO8 audio interface, B&W DM2 Mk2 Speakers (3 pairs), Sony CD, Sony DAT(x3), Alesis Hard Disk Recorder, Sony APR5003 Reel to Reel Recorder. Akai AT93 Tuner & GX-95 MK2 Cassette Deck, Technics SL-1200 Turntable, Valve Phono stage, Denon DL-110 cartridge.

Ambisonic user since the 1980's
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#282886 - 2019-02-18 03:27 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Alikris]
Registered: 2005-09-14
Posts: 843
Kal Rubinson Offline
Pan-dimensional being
Kal Rubinson Offline
Pan-dimensional being

Registered: 2005-09-14
Posts: 843
Loc: NYC/CT, USA
Cool gadget.


Kal Rubinson
"Music in the Round"
Senior Contributing Editor, Stereophile
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#282913 - 2019-02-18 18:01 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Kal Rubinson]
Registered: 2016-05-04
Posts: 215
Ogri Offline
Hitchhiker
Ogri Offline
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Registered: 2016-05-04
Posts: 215
Loc: London, UK
Interesting, does this replace a HD621 and an Oppo for instance? Effectively streaming multichannel? Is there something special going on here that I’ve missed? Cheap replacement...

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#283015 - 2019-02-22 13:32 Re: MiniDSP U-DIO8 Multichannel USB to 4x SPDIF Interface [Re: Ogri]
Registered: 2018-04-11
Posts: 46
Alikris Offline
Mostly harmless
Alikris Offline
Mostly harmless

Registered: 2018-04-11
Posts: 46
Loc: Northumberland, UK
Just to clarify, this plugs into a computer USB port and outpouts upto 8 channels of SPDIF digital audio. So yes, it replaces a HD621 with the exception that the U-DIO8 doesn't have a Meridian Comms link or MMHR/Smartlink outputs(obviously) and instead of the audio being output from the computer (or media player) over HDMI, with the MiniDsp U-IDO8 the output from the computer is over USB. Obviously the U-DIO8 has no HDMI input and therefore does not have any HDMI switching or pass through capability. The UDIO-8 also allows upto 8 channels of digital audio input (for recording).

The U-DIO8 allows one to play a DVD/Bluray on a computer and the multichannel surround sound audio to be routed to Meridian Processors via the MD1 or MD2 inputs.

Hope that makes sense?

Ali.


Meridian G61R, Behringer A500 amps & DEQ2496 DSP, MiniDSP U-DIO8 audio interface, B&W DM2 Mk2 Speakers (3 pairs), Sony CD, Sony DAT(x3), Alesis Hard Disk Recorder, Sony APR5003 Reel to Reel Recorder. Akai AT93 Tuner & GX-95 MK2 Cassette Deck, Technics SL-1200 Turntable, Valve Phono stage, Denon DL-110 cartridge.

Ambisonic user since the 1980's
Edited by Alikris; 2019-02-22 13:40.
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