Or, WiiM Amp Ultra II

[harkpabst]

With all the talk we have about amps, class A/B, D, Hypex, Purifi, TPA and ‚lastest state of the art‘, this SDA is sonically on par with all of them or even excells them, despite its design and technology being 10 year old. This includes its ‚stone age‘ DAC.
For me this goes to show that with mindful design class-D amps and DACs have reached the end of what we can hear.

I find this kind of re-ashuring and a relief. Now I can concentrate on features rather than on sound.

I agree, good sound is not a matter of what power amp module to use in the first place. Once in a while I'm tempted to buy one of those Apollon Purifi amps (I love the case work of the entry level series). But then again I simply listen to my TDAI-1120 ...

 

[Aquaman]

I have a TDAi-2200 and this is fully digital (although I have the analog inputs option card). I had an SDA-2200?! and it was analog input and then digital all the way to the output, thus the semi-digital

The TDAI-2210 is a different concept by Lyngdorf. Technically this has little to do with the SDA-2400 by the same company.
An SDA-2200? Are you referring to the JBL SDA-2200? This is a completely different thing altogether and has nothing to do with ‚digital‘.

BTW, the only digital things on the Lyngdorf SDA-2400 are its digital inputs and the DAC.

 

[harkpabst]

I have a TDAi-2200 ...

There's a TDAI-2210 (brand new) and it's predecessor, the TDAI-2170. For both analogue input boards are available.

 

[Aquaman]

Once in a while I'm tempted to by one of those Apollon Purifi amps (I love the case work of the entry level series). But then again I simply listen to my TDAI-1120 ...

Well, I have scratched this itch with the Apollon 1ET9040BA DM . Beautiful, both aethetically and sonically.
It‘s currently just acting as a bystander. I‘m simply torn apart between my two lovelies.

 

[Aquaman]

I agree, good sound is not a matter of what power amp module to use in the first place. Once in a while I'm tempted to by one of those Apollon Purifi amps (I love the case work of the entry level series). But then again I simply listen to my TDAI-1120 ...

Are you also using the TDAI‘s streaming unit?
I‘d be interested to learn how it compares to the WiiM concept.

 

[harkpabst]

Well, I have scratched this itch with the Apollon 1ET9040BA DM . Beautiful, both aethetically and sonically.
It‘s currently just acting as a bystander. I‘m simply torn apart between my two lovelies.

Don't talk me into something stupid ...

 

[harkpabst]

Are you also using the TDAI‘s streaming unit?
I‘d be interested to learn how it compares to the WiiM concept.

After most enjoyable months (!) of running the WiiM Amp Ultra in my main system (first plain into my Radiant Acoustics Clarity 6.2, later adding my pair of BW-2 subs, in mono mode of course) I finally switched back to my TDAI with both subs. I just used Lyngdorf's default configuration for this setup, entered the distances to all the speakers and ran RoomPerfect.

All this was fast and easy, using the new MyLyngdorf app. Finally I started this playlist using Tidal Connect (no Tidal integration into the Lyngdorf app) ... and I couldn't stop listening for hours, because it all sounded so incredibly good:

Sonic Snacks by Stjernholm Reviews

Playlist - Sonic Snacks by Stjernholm Reviews - 322 items

tidal.com

 

[PaintItBlack]

Remember, your Dynaudio produces 86 dB/W, resultung in theoretically 106 dB@100W (quite loud). Taking into consideraton crest factor of about 10 dB for Piano sound, peaks may easily cause distortion (clipping) at 96 dB already. Not a WiiM problem!

I would agree 100% with this, but the thing is that it was not quite loud due to the recording level. This afternoon (no siesta for the wicked ) I accidentaly how loud the Dyns + WAU can be. I run the SPL test in REW and, because I'm a total noob, I used volume 100 in WAU and 0 dBFs in REW and boy, that was loud!!! I had to jump to the WAU to pause it inmediately

 

[pjorgenunes]

The TDAI-2210 is a different concept by Lyngdorf. Technically this has little to do with the SDA-2400 by the same company.
An SDA-2200? Are you referring to the JBL SDA-2200? This is a completely different thing altogether and has nothing to do with ‚digital‘.

BTW, the only digital things on the Lyngdorf SDA-2400 are its digital inputs and the DAC.

Sorry mine was SDA-2175 which is discontinued

This had only analog (balanced & unbalanced) inputs:

After most enjoyable months (!) of running the WiiM Amp Ultra in my main system (first plain into my Radiant Acoustics Clarity 6.2, later adding my pair of BW-2 subs, in mono mode of course) I finally switched back to my TDAI with both subs. I just used Lyngdorf's default configuration for this setup, entered the distances to all the speakers and ran RoomPerfect.

All this was fast and easy, using the new MyLyngdorf app. Finally I started this playlist using Tidal Connect (no Tidal integration into the Lyngdorf app) ... and I couldn't stop listening for hours, because it all sounded so incredibly good:

Sonic Snacks by Stjernholm Reviews

Playlist - Sonic Snacks by Stjernholm Reviews - 322 items

tidal.com

RoomPerfect is "just" awesome

 

[harkpabst]

Sorry mine was SDA-2175 which is discontinued

This had only analog (balanced & unbalanced) inputs:
View attachment 32267


RoomPerfect is "just" awesome

And funnily, while Lyngdorf no longer officially use the term "semi digital amplifier" with the SDA-2400, it's right there in the manual of the SDA-2175.

 

[Aquaman]

And funnily, while Lyngdorf no longer officially use the term "semi digital amplifier" with the SDA-2400, it's right there in the manual of the SDA-2175.

I guess SDA refers to the Equilog circuit. Whatever that is. I have a very rough idea of the Equibit concept (very rough), but Equilog … beats me.

I‘m really eager to see what Lyngdorf will present as a successor to the aging SDA-2400.

 

[Haknuts]

So the WAU is installed. Testing and settings ongoing. Overall impressed, the hi/lopass filters really cleaned up the sound.
Unsolved issues noted this far:
- Will only play the 2-3 first ttitles from any NAS stored FLAC albums, after that loops back to no.1
- source select from remote gets stuck on BT, awaiting paring

To be continued

 

[PaintItBlack]

So the WAU is installed. Testing and settings ongoing. Overall impressed, the hi/lopass filters really cleaned up the sound.
Unsolved issues noted this far:
- Will only play the 2-3 first ttitles from any NAS stored FLAC albums, after that loops back to no.1
- source select from remote gets stuck on BT, awaiting paring

To be continued

I'm aware that your system could be different but if you only use the NAS flac files to feed the WAU then using a local SSD with the WAU works very well in my experience.

I also suffer from the same problem with input select in the remote.

 

[Wiimer]

source select from remote gets stuck on BT, awaiting paring

In the WiiM app's browse screen, you can customize sources and hide Bluetooth input. To use Bluetooth, press and hold the remote's mic button while saying "Connect to Bluetooth." Also, pressing and holding the remote's play button enters pairing mode.

 

[Aquaman]

In the WiiM app's browse screen, you can customize sources and hide Bluetooth input. To use Bluetooth, press and hold the remote's mic button while saying "Connect to Bluetooth." Also, pressing and holding the remote's play button enters pairing mode.

I think @Haknuts and @PaintItBlack meant that the input selection on the remonte will not switch through the available inputs as it should. At least this is what I find on my Sound. I haven't looked into it any further yet.

 

[Wiimer]

I think @Haknuts and @PaintItBlack meant that the input selection on the remonte will not switch through the available inputs as it should. At least this is what I find on my Sound. I haven't looked into it any further yet.

Yes, I understand that.

When switching input to Bluetooth by remote, the WiiM device enters pairing mode or attempts to connect. This causes the input switch to not occur smoothly.

You can avoid this by hiding the Bluetooth input.


# Hiding Bluetooth allows you to bypass Bluetooth when pressing the input switch button on the remote.

 

[Aquaman]

Yes, I understand that.

When switching input to Bluetooth by remote, the WiiM device enters pairing mode or attempts to connect. This causes the input switch to not occur smoothly.

You can avoid this by hiding the Bluetooth input.

I see. I remember you giving me this use case as advice when I had a BT pairing problem.
But it just doesn't seem logical. You press the input button and expect to march through your abvailable inputs. Instead you get hung up with BT.
I do want BT to be available and accessible via the remote. Looks like a real bug.

 

[Wiimer]

I see. I remember you giving me this use case as advice when I had a BT pairing problem.
But it just doesn't seem logical. You press the input button and expect to march through your abvailable inputs. Instead you get hung up with BT.
I do want BT to be available and accessible via the remote. Looks like a real bug.

This is not a bug, so I recommend hiding it in the WiiM app. When you want to use Bluetooth, press and hold the microphone button while shouting. (Switching to Bluetooth is still possible even when hidden.)

However, I agree that the current input switching is not smooth. On devices with screen, the volume level appears after switching inputs, so rapidly tapping the input switch button causes the operation to become erratic.

But most input switching is done automatically via auto-sensing, so I don't use the remote's input switch button rarely.