Aqua La Scala MKII Optologic Dac Owner Testimonial

skids929

Well-Known Member
Dec 31, 2020
217
105
113
54
Can you please elaborate on this? I own the MSB at present and have had the la scala here in the past on loan; Ive always had an inkling of wanting to own the la scala or another tube dac.
wider and deeper soundstage, by a large margin..Same level of detail retreival, same level of smooth, but the musicality nod goes to the La Scala..And the dynamics are a alot better, but it's the voices and accuracy of the tone of instruments that is really surprising me. Much better in that department. Two channel separation much better with La Scala ( I had the two power supplies with the Discrete).

Like the Discrete, this is a dac you can listen to all day but this is a little more exciting and across different genres and crappy recordings I find it still sounds great, which I would also say the Discrete did too. Overall this is a more musical, more dynamic, much more holographic, equally detailed, tonally better DAC in my system, in my ear.


Edit: I forgot to mention, I'd say the Discrete beats the La Scala in the bass dept. The La Scala could use a bit more bass weight, my only complaint so far. But it's not horrible by any means, of course need more time and tracks through it.
 
Last edited:

barbz127

Member
Jun 4, 2022
57
12
13
39
wider and deeper soundstage, by a large margin..Same level of detail retreival, same level of smooth, but the musicality nod goes to the La Scala..And the dynamics are a alot better, but it's the voices and accuracy of the tone of instruments that is really surprising me. Much better in that department. Two channel separation much better with La Scala ( I had the two power supplies with the Discrete).

Like the Discrete, this is a dac you can listen to all day but this is a little more exciting and across different genres and crappy recordings I find it still sounds great, which I would also say the Discrete did too. Overall this is a more musical, more dynamic, much more holographic, equally detailed, tonally better DAC in my system, in my ear.


Edit: I forgot to mention, I'd say the Discrete beats the La Scala in the bass dept. The La Scala could use a bit more bass weight, my only complaint so far. But it's not horrible by any means, of course need more time and tracks through it.
Thankyou

Are your comparisons using the same source? And you could you please share what source and connection method you're using?
 
  • Like
Reactions: skids929

Designsfx

Active Member
Sep 26, 2023
277
148
43
Los Angeles
Edit: I forgot to mention, I'd say the Discrete beats the La Scala in the bass dept. The La Scala could use a bit more bass weight, my only complaint so far. But it's not horrible by any means, of course need more time and tracks through it.
@skids929
As I mentioned in our offline chat- that was were I would have thought the MSB would have excelled as well, brings me back to when I started using the La Scala. My cure for the low end punch was found in a pair of NOS Telefunkens described earlier in this thread. Enjoy!
 

Emperyan

Well-Known Member
Oct 11, 2020
35
36
83
43
did you happen to try any of the Matsu Mullards? Supposed to be similar in materials and Mullard tooled their factories. Just curious as it seems those are more available (not cheap) than the Blackburns. Even found some sealed boxes from the 50s and 60s.
There were a couple of factories building tubes on Mullard tooling throughout the years. For some odd reason - at least to my ears - none of them completely matches the Blackburn ones. But there are many which are quite close. E.g. you could check for tubes made in the Philips factory in Heerlen (Netherlands). They are available under different brands like Philips Miniwatt, Valvo or even Mullard.
Even tubes under the BEL brand made in India are very very similar to the Heerlen made ones as they were part of the technology transfer program down then. Give them a try if you can come across!

But be aware of the Mullards labeled CV4024 (some with KQDD). They were pretty readily available for quite a while, but imho they are far inferior to the abovementioned ones. I assume these tubes are the reason Mullard got their reputation of a dulled down sound. These indeed sound somewhat "mushy". Might be nice for some distorting guitar amps, but I don´t like them for hifi.
 
  • Like
Reactions: skids929

Emperyan

Well-Known Member
Oct 11, 2020
35
36
83
43
@skids929
As I mentioned in our offline chat- that was were I would have thought the MSB would have excelled as well, brings me back to when I started using the La Scala. My cure for the low end punch was found in a pair of NOS Telefunkens described earlier in this thread. Enjoy!
In my experience, less bass weight often means a tighter and more controlled low end. If you are used to more/louder bass, your instant feeling is that something is missing. But if you get used to it, you might not want to get back to the weightier but more bloated low end.

I have seen this effect with tubes as well. There are some which could really help with low end weight (e.g. the current production Genalex range), but if you listen closely you will notice that they tend to bloat the bass somehow and not improve it.

Try to use DSP (or analog acoustic treatment) to flatten out the bass in your room to be in balance with the rest of the frequency range or check a well regulated studio environment. You will notice that the result is less low end weight than what most audiophiles are used to, as low frequency room modes are the norm in regular listening rooms. But once you overcome the first feeling of "something missing", you will be able to focus on the new found quality of bass.

If it comes to low end, I never try to evaluate it´s quantity but focus solely on the quality. There is a good chance that less in quantity means in fact significantly better quality.
 

skids929

Well-Known Member
Dec 31, 2020
217
105
113
54
Thankyou

Are your comparisons using the same source? And you could you please share what source and connection method you're using?

Yes same source, I am using an Innuos Pulse as a source, via USB. Haven't tested the SPDIF or AES on the La Scala yet. This isn't a side by side comparison I am doing so not like an A/B. This is going off of a long time spent with the Discrete, so I am initmately familiar with it's sound in my room in my system.
 

skids929

Well-Known Member
Dec 31, 2020
217
105
113
54
In my experience, less bass weight often means a tighter and more controlled low end. If you are used to more/louder bass, your instant feeling is that something is missing. But if you get used to it, you might not want to get back to the weightier but more bloated low end.

I have seen this effect with tubes as well. There are some which could really help with low end weight (e.g. the current production Genalex range), but if you listen closely you will notice that they tend to bloat the bass somehow and not improve it.

Try to use DSP (or analog acoustic treatment) to flatten out the bass in your room to be in balance with the rest of the frequency range or check a well regulated studio environment. You will notice that the result is less low end weight than what most audiophiles are used to, as low frequency room modes are the norm in regular listening rooms. But once you overcome the first feeling of "something missing", you will be able to focus on the new found quality of bass.

If it comes to low end, I never try to evaluate it´s quantity but focus solely on the quality. There is a good chance that less in quantity means in fact significantly better quality.


I agree it is tighter and I need to let my ear adjust. I don't have a huge room and my speakers are line transmission so I can feel the impact of bass changes pretty easily. As I run it through more music I should get a better idea of how I feel about it. 90% of my listening is blues, jazz standards, very little pop, but bass is important for infill. The middle to upper octaves with this dac are to die for. Like eye watering stuff, some of the best I've heard.

Edit: I flipped the phase switch up to 180 and that seemed to improve the bass audibly. It's still a smidge off from where I am used to. Hoping a tube rolls helps. I identifed a set of Mullard Blackburns 1950s.
 
Last edited:

Backo NYC/SF

Active Member
Oct 15, 2021
51
103
40
67
I have the La Scala in my system now for an audition now. First impressions are this is an INCREDIBLY good dac. Might lack a little bass weight but otherwise this is better than my MSB Discrete by a fair margin. Im actually a little shell-shocked at how good it is to be honest..I have to put some more tracks through it of course but most of the reference tracks and Albums I use have been impressive to say the least.
Another La Scala owner here. I was curious. Are you using the balanced or unbalanced outputs? The unbalanced are MUCH brighter and don't quite get the lower mids and bass as well as the balanced outs. The balanced outs don't favor the high end quite so much. I'd call it 'smoother' for lack of a better term.
 
  • Like
Reactions: skids929

skids929

Well-Known Member
Dec 31, 2020
217
105
113
54
Another La Scala owner here. I was curious. Are you using the balanced or unbalanced outputs? The unbalanced are MUCH brighter and don't quite get the lower mids and bass as well as the balanced outs. The balanced outs don't favor the high end quite so much. I'd call it 'smoother' for lack of a better term.


I was using balanced outputs into my preamp. Although its a wonderfuly dac I am likely moving on from it.
 
  • Like
Reactions: Backo NYC/SF

Backo NYC/SF

Active Member
Oct 15, 2021
51
103
40
67
I was using balanced outputs into my preamp. Although its a wonderfuly dac I am likely moving on from it.
If i move on, I'll be trading up from the Esoteric P-03/Aqua La Scala DAC comboI have to the Esoteric K-03XD. It's hard though. I'm getting pretty all in on digital downloads to my music server rather than SACD's and the Aqua still has me charmed.
 
  • Like
Reactions: skids929

About us

  • What’s Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono stages, cartridges, reel-to-reel tape machines, speakers, headphones and tube and solid-state amplification. Founded in 2010 What’s Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals, we enjoy learning about new things and meeting new people, and participating in spirited debates.

Quick Navigation

User Menu

Steve Williams
Site Founder | Site Owner | Administrator
Ron Resnick
Site Co-Owner | Administrator
Julian (The Fixer)
Website Build | Marketing Managersing