Hi guys,
Continuing my review of the BTA-30 and exploring it's features a little "in-depth".
In this post I'l like to give my impressions of the BTA-30 used as Bluetooth RECEIVER.
II. BTA-30 USED AS BT RECEIVER
A. Set-up
Set-up is as following.
The BTA-30 is powered by USB-C cable that is plugged into a wall charger, not into a computer.
The button is pushed to the far left, turning the BTA-30 into a Bluetooth receiver.
The Bluetooth emitter is a ZTE RedMagic 3 smartphone (rooted and with developer's options enabled).
The files are played over Tidal and over Qobuz.
The BTA-30 outputs to RCA and the RCA cable is terminated with 3.5 jack that plugs into an Oppo HA-2 SE portable headphone amplifier.
The amplifier itself feeds an Oppo PM-1 headphone.
B. Pairing the BTA-30 with the Smartphone
This is really easy
Push the button to the far left into BT RX position.
Open smartphone set-up to search/pair/connect Bluetooth devices.
Push the "Pair" button on BTA-30 for like 3 seconds until the LED flashes green/red.
When done, search for BT devices on the smartphone.
The BTA-30 will show up and you just select it... Done.
As I'll report in a later review, pairing the BTA-30 when used as a Bluetooth transmitter is not as easy
C. Recognizing different formats
Once connected, I began to stream files from my smarthpone to the BTA-30.
I went to developers settings on the phone and changed the transmitting codec : SBC, aptx-HD, LDAC.
The BTA-30 supports the change on the fly with no problems at all.
The small LED on top of the "pair" button changes colour accordingly.
And the button's colour shows as it is supposed to
So I guess the change in transmitting coded is handled quite nocely by the BTA-30.
D. Connection stability
There's nothing that irritates me more than an unstable Bluetooth connection.
When, all the sudden, for no obvious reason, the connection seems to be scrambled.
Well, I am happy to report that after 45 minutes of playback from the phone to the BTA-30, I have had no such problems.
And that was despite me touching the phone and moving it around.
OK, I did not went really far away from the BTA-30 but, on some devices, evenbeing at 2m and not moving, I sometimes had connection problems.
Well, none of this happened on the BTA-30 when used as a Bluetooth receiver...
E. Sound quality
The BTA-30 has been used with SBC, aptx-HD and LDAC.
The files used were Loreena McKENNITT "Live from the Royal Albert Hall", Pink Floyd's "Delicate Soud of Thunder - Live", Dvorak's Violin concerto by Eldbjorg HEMSING and the Antwerp Symphony Orchestra and DOVRAK's 9th symphony conducted by Leopold Ludwig.
First statement :
Despite all the fuss about the transmission codecs, I found that the differences between the several codecs used was more subtle than "night and day" change. Well, all in all I think I would be able to live even with SBC. Maybe my 50 years old ears aren't as accurate as they used to be...
Second statement : SBC
OK. If I'd have to tell, I'd say that SBC is slightly less detailed than aptx-HD and LDAC.
It kinds of "projects" treble. And bass is less legible.
But as I said, if I would hve to, I would be able to live even with only that.
Third statement : aptx-HD
Well, I must say that this was my favourite codec.
I found the sound coming out of this was the most "uniform" of all three used.
No frequency was pushed forward.
And no frequency is left out : bass makes the planars shake when they are available on the recording (listen to 15 seconds of Yet Another movie on Pink Floyd's "Delicate sound of thunder - Live) is quite revealing for that
In another style, Dvorak's 9th (First movement) is also quite revealing.
Treble and mids are also really nice and you can understand whatever Loreena McKENNITT sings in her Live at Royal Albert Hall. And Eldbjorg HEMSING's violin can rip your ears off in Dvorak's violin concerto as far as treble goes.
Fourth statement : LDAC
This is supposed to be the best format available for wireless streaming (apart of the confidential UAT).
Well, I found is less appealing than the aptx-HD.
I found that the bass was not really legible. Kind of fuzzy... on all recordings I listend to
It was a little disappointment here.
Is it the codec or the way the device decodes it ?
That remains to be determined, but as long as I have aptx-HD, I won't really
Regards.