I have an Accuphase Dg68 part corrector Dac, the choice of the hifirose Rs130 was made taking into account unnecessary and expensive equipment
Everyone has their own need but I still don’t understand why you buy a device without knowing its characteristics
Some people do like paying more money for substandard performance…
yes there are beautiful devices – a clear indicator of where things are heading in the world of HiFi streamers and DACs. We’re now seeing a growing range of high-quality streaming DACs that include advanced EQ and PEQ capabilities – for example, the NAD C 658, Eversolo, or WiiM. The Lyngdorf TDAI-2210 you mentioned even features a full RoomPerfect calibration system, which is incredibly impressive. I also really like the inclusion of a dedicated headphone output – a thoughtful touch.
Interestingly, as most of these modern units now feature some form of room correction, the topic of EQ is rarely even highlighted. It’s almost become a standard bonus – quietly included, but still powerful. Would be intresting to see how HIFI ROSE see / anticipate that.
Lyngdorfs seem to offer both PEQ/voixings and one of the best room correction systems on the market. Alas, it seems that HiFi Rose had decided to target the audiophile market with useless snake oil that takes zero effort to design – SFP connections, clock inputs etc. that you just pick off the shelf and stuff on the mainboard – rather than something that takes expertise, effort, and money to develop or license, like a proper room correction system instead of people who care about the best possible music reproduction… Sure, margins on something like the RS130 must be astronomical, but given that they still haven’t bothered to release anything with a simple subwoofer output, like even cheap Wiim or BlueSound units have, which would provide vastly greater improvement in sound in practically any system than any number of fiber connectors, external clocks and whatever doodads they have been adding lately. I wouldn’t necessarily hold my breath.
I would like the ability to set gain (+/-) per track. This permits me to manually normalize the volume of my library.
Regarding PEQ, not needed for me ← my AVM 90 Prepro has an excellent Room Correction function.
You do realize that you can turn off the EQ features, right?
So if Rose adds PEQ and you don’t want it… set that top slider to off. 
Ah Boris talking out his opinion hole again.
Sure, there’s no question that the Lyngdorf currently has the best room correction on the market.
And of course you pay the price.
Yet you’re too dismissive of the use of an external clock or SFP/SFP+ which also has advantages.
You called it ‘snake oil’ which is kinda funny because its not.
And if you had a decent sub like a Rel, you’d be using the same outputs as your speakers. (You can google Rel’s site for their manuals on this.
Or if you have the RS520 you can use the line out at the same time you have your speakers and send that to your sub(s). (Oh wait, you only wanted a single sub not one per channel? And you call yourself an audiophile. 
)
Different vendors make different choices based on what they believe their customers want.
Since HiFi Rose’s primary market is South Korea… I’d defer that choice to them.
But this makes me wonder. Do you even own any of their kit? Why don’t you own a Lyngdorf.
For me, I was able to get an RS520 at a really good price. It was a no brainer.
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Poor Boris
So which Rose products do you own? You claim to own several, yet your inability to understand the connections is amazing.
I’ve already gave you the specs on the CAT 8 cabling which came out of committee back in 2016.
(Or rather out of the working group and passed committee which is now a spec)
If you don’t grok ethernet cabling how can you understand the significance of synchronizing clocks, especially at the femto scale level?
Nor would you understand the advantages of an SPF/SPF+ network connection. (Even at 1GbE speeds)
And again, you fail to realize that HiFi Rose, is a SK company and that’s their first market. They are still new and breaking into the US and other markets.
Do they have issues? Sure. Their product documentation suffers, and there are some gaps in their products like relying on a single vendor’s dongle to offer wi-fi and BT, using both older standards. Since its an external device they could easily add in more device drivers including generic device drivers to allow for either split wifi and bt into separate dongles and allow for higher spec BT like 5.2 or later.
(I could also point out that their reliance on an older port design rather than HDMI for IS2 is also an issue)
Personally I don’t care for their marketing of GanFET as class AD when its really class D. But I get it because of guys like you who don’t grok the difference.
250 and 520. And I know that you can’t jam a GG45 connector into RJ45 port. Maybe that’s why you got fired after damaging too much rare and expensive equipment.
Which has jack to do with your CAT7 cables.
For asynchronous packetized transmission? Not only that, but neither would Einstein. Because there is none. And you don’t even need to be an Einstein to understand that, just not an ignorant cable puller who decided that he knows something about things because 40 years ago he was allowed to pull a Token Ring cable before getting promptly fired.
For audio equipment? See above. There isn’t any. But wer can’t understand people with single-digit IQ tov understand that. You can’t even understand whatever it is that ASR measures, even though they’ve put out bloody YouTube videos that even a kid could understand.
It’s very sweet that after many years of dumpster diving you have managed to save a few dollars and someone unloaded a 520 on you for cheap, but HiFi Rose has been in the US market for years.
If you could grok anything, you’d know that I2S is useless for any practical purpose and that because it is explicitly not designed for external data transmission, the best you can do is use a somewhat standard connector. Which happens to be HDMI in this case because Uncle Paul McSwindler of BS Audio, who made it popular, couldn’t and wouldn’t ever pay for any engineers to design a dedicated connector.
There’s no practical difference between a well-made Class A and Class D amplifier for the purposes of listening to music (you should try that one day). Not that Rose’s implementation of Class D using GaNFET were particularly great. It’s inoffensive but no more than that.
@Boris, @Smegel,
Guys, may I kindly bring the topic of this thread back into focus?
I feel we’re drifting into unrelated discussions, which might make it less relevant or helpful for other readers.
Let’s try to stick to the subject mentioned in the thread title — specifically the EQ functionality in Rose devices, especially the RS151.
Thanks a lot for your understanding!
Well he started it.
But back on point… PEQ appears to be a different interface to the EQ that Rose already offers.
You can shift the point of EQ and then tune it.
I don’t think its a simple fix but it should be straight forward since its a UI fix.
To bring it back top the topic, a) it would be trivial to have it, as RoseOS does include PEQ functionality elsewhere, and b) Rose had specifically decided that they are not pursuing the high fidelity / high quality music reproduction market and are not interested in enabling it in their “flagship” devices.