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RonM
2018-12-26, 09:13
I've been needing a new set of headphones, and got some for Christmas. They're not quite what I expected, but plenty decent -- the Bose Quiet Comfort 35 II. These are bluetooth wireless, although they can be used as wired.

The audio quality of my Android phone isn't the greatest, especially using Bluetooth, so I was considering my options. I could use a Bluetooth transmitter on my older stereo receiver, which has good sound quality, but I'd be limited to connecting to the adapter through the headphone jack, downsized to 3.5 mm size.

But perhaps I can use my Transporter's TOSLINK output to a suitable bluetooth adapter which accepts TOSLINK. Is there any reason this wouldn't work? Will the Transporter's pre-amp volume control work through the TOSLINK?

I'm really very vague on the technicals of this, so any help appreciated.

R.

mftech
2018-12-26, 15:16
This product should do the trick:
https://www.amazon.com/Avantree-Bluetooth-Transmitter-Receiver-Simultaneously/dp/B07BQYYDNJ/ref=sr_1_3?ie=UTF8&qid=1545862435&sr=8-3&keywords=avantree+aptx+hd

RonM
2018-12-26, 17:59
That, in fact, is exactly what I had ordered from the Canadian Amazon site.

My only concern is whether the optical out on the Transporter is volume-controlled, but I figure that if the analog outs are it must be as well. We'll see.

R.

garym
2018-12-27, 07:46
That, in fact, is exactly what I had ordered from the Canadian Amazon site.

My only concern is whether the optical out on the Transporter is volume-controlled, but I figure that if the analog outs are it must be as well. We'll see.

R.

The SPDIF out of the transporter is volume controlled so I assume the optical is too.

RonM
2019-01-09, 14:28
So, I got my Avantree Oasis Plus bluetooth device, and after an initial panic (I'd plugged the optical cable into the optical out of the Avantree, and of course it didn't work) it works fine. Some observations:

Sadly, the Bose 35II headphones that I received for Christmas do not support the advanced codecs like APTX, so can't take advantage of high-res bluetooth transmission. This is one of the big pluses of the Avantree device, in that it supports both high-res and low latency modes for Bluetooth. So if you want to have high-res capabilities in an untethered headphone, or to watch videos with the audio properly synched, look elsewhere than Bose. The sound is not bad, the noise cancellation is great (although in my quiet house this isn't a big plus), the headphones are comfortable but they don't take advantage of the higher-res signal available.

The Avantree device has excellent range. It uses the highest power bluetooth standard, and in theory has a range of up to 300 feet, although this will depend on the receiving device. In any event, more than enough to work anywhere in the house and out into the garden. Not extensively tested, as it's cold and snowing, but no reason to think it won't work.

And I can verify that the optical out of the Transporter is indeed volume-controlled.

R.

d6jg
2019-01-09, 15:45
Ron
Are the Bose cans wired as well as wireless?
I recently made my wired B&W cans into Bluetooth enabled with one of these

https://www.amazon.co.uk/Bluetooth-Transmitter-Receiver-TaoTronics-Simultaneously-Black/dp/B016UF7J5C

I have a pair of these devices one in TX mode into the headphone socket of my amp and another in RX mode for the headphones. I donít see why the RX version wouldnít work with your new Bluetooth transmitter.

RonM
2019-01-09, 16:21
Yes, you can use them wired but that kind of defeats the purpose. These could work, but I'd have to use the cable supplied by Bose as it uses the skinnier jack on the headphones. Depends on the quality of the DAC in the device; the Bose DAC is quite good, I understand, which is why I'm disappointed that it doesn't support the APTX codex. Although these days, I suppose, most DACs in small devices are pretty good.

Not sure I want to have to tote around the device in my shirt pocket or something, though.

R.

d6jg
2019-01-09, 16:31
Iím using them purely to listen to my records as I record them to FLAC so that I can move around a bit and so SWMBO can still watch TV while Iím doing it.
Itís not a ďserious useĒ case as once the LP is in FLAC format and if I want to listen on headphones Iím using the wired B&Ws into my iPhone (or iPad) with iPeng / LMS.
The Bluetooth RX thingy I put in my pocket as I do with the iPhone.