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Pro-Ject Phono Box E BT 5 and Sonos Roam

  • September 18, 2023
  • 4 replies
  • 510 views

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Hi,

 

Looking for some help with getting sound via my Roam connected to my turntable.  This is the setup I’m using:

 

Rega Turntable > Pro-Ject Phono Box E BT 5 via RCA cables > Sonos Roam SL over bluetooth..

 

The issue I have is that it pairs successfully but I get no sound via the Roam.  I can confirm there is no issue with the pro-ject preamp, it works OK if I connect a different speaker to it via bluetooth.  Does anyone have any suggestions?  Is it perhaps a codec issue?

 

Thanks

Best answer by ratty

Strangely the tech specs for that Pro-Ject box list its BT codecs as ‘aptX, aptX Adaptive, aptX HD’ without including SBC. Roam only understands SBC and AAC.

If the box really doesn’t do SBC that would explain things, but I’d be amazed if that were the case. I thought SBC was supposed to be a mandatory fallback. 

(In contrast, the BT Box E HD explicitly says ‘aptX, aptX HD, SBC’.)

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4 replies

ratty
  • 31402 replies
  • Answer
  • September 18, 2023

Strangely the tech specs for that Pro-Ject box list its BT codecs as ‘aptX, aptX Adaptive, aptX HD’ without including SBC. Roam only understands SBC and AAC.

If the box really doesn’t do SBC that would explain things, but I’d be amazed if that were the case. I thought SBC was supposed to be a mandatory fallback. 

(In contrast, the BT Box E HD explicitly says ‘aptX, aptX HD, SBC’.)


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  • Author
  • Contributor I
  • 2 replies
  • September 18, 2023

I agree it’s confusing. It’s even more confusing that the box E HD is meant to be paired so I’d have expected the E BT to have SBC at a minimum. I might need to contact Pro-Ject but I would have thought it would have been supported. It lists its Bluetooth as 5.2 but doesn’t expand any further outwith the AptX support. 


ratty
  • 31402 replies
  • September 18, 2023

I suppose it’s conceivable that the Phono Box E BT 5 disabled SBC on the grounds that, well, SBC is rather an inferior codec (to put it politely) compared to the fidelity of the others.

The BT Box E HD, on the other hand, as a more general-purpose device would need to cater for all comers. 

Obviously a Phono Box E BT 5 and a BT Box E HD would be expected to negotiate aptX-HD between them if paired together.

See what Pro-Ject have to say.


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  • Author
  • Contributor I
  • 2 replies
  • September 19, 2023
ratty wrote:

I suppose it’s conceivable that the Phono Box E BT 5 disabled SBC on the grounds that, well, SBC is rather an inferior codec (to put it politely) compared to the fidelity of the others.

The BT Box E HD, on the other hand, as a more general-purpose device would need to cater for all comers. 

Obviously a Phono Box E BT 5 and a BT Box E HD would be expected to negotiate aptX-HD between them if paired together.

See what Pro-Ject have to say.

 

The distributer has confirmed to me that they’ve reached out to Pro-Ject for an answer.

Will post back with their findings as might help others. 


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