krass

don’t know if you still have this problem or contacted Grimm yet, but came across an earlier post on this thread with exact same problem, with a solution provided by Grimm (you may have to look a few posts up & down): https://audiophilestyle.com/forums/topic/58754-grimm-audio-mu1-and-mu2-music-players/?do=findComment&comment=1260019

I have a Behringer ECM8000 bought a few years ago with similar ideas in mind… never used it. Let me know by message if you’re interested to buy it ?

think you should contact Grimm who are more than helpful: [email protected]

Might not be the labels.. might just be internal ‘commercial decisions’ on what is affordable/ profitable (though of course the ‘labels’ may be making their own commercial pricing decisions too)

I can sort of understand it… their rights/distribution agreements change with time, so they’re aligning their online repository accordingly (adding or removing titles etc). They've obviously realised this has an impact on people who have paid (or will in the future) for a download (& maybe not yet downloaded), so they’re changing their terms. The only point of interest is how long should a provider keep a copy for you after you’ve bought a download ? It’d seem reasonable to give a period of a few weeks, but I don’t see why they should have to maintain an archive of out-of-license material for a lengthy period… few months maybe ??

deleted

that post is 3 years old !

thought it was odd to have mixed format, but those 3 tracks were released previously as “singles” which might explain their different format….. still odd though….

Nico, it would help if you explained what all the rectangular shapes are ? Seats, cupboards, walls, hifi furniture etc ?? And what is ‘behind’ the speakers where the 2.6 box is ? Is it a wall, half-open, open to a vide etc ? What are the walls ? Any windows with window coverings ? Could really do with a LOT more info ! And welcome 🙏

I don’t doubt it has “good measurements”.. I’m just uncertain whether it technically brings much (more) than an approach using AC power filters; in one case the inverter is many miles away but you have other users sharing the power source, in this case the inverter & its electronics are very close by but you have the advantage to isolate yourself from other users. Ulitimately if it works for you then it’s a good choice !

I’d question whether a standalone battery AC system is better or not… to supply mains AC it needs an AC inverter - I cannot believe these are electrically quiet in any way so even if you can generate a nice AC waveform it’ll surely be polluted with the inverter/ electronics noise ? (unless there’s some heavy AC filtering/ conditioning going on as well - so no different to putting the filter/ conditioner on the wall mains ?) It may well be a battery “source” but unless you’re powering DC equipment directly then I cannot see much benefit of regenerated AC over the wall mains with filters etc….

saw ADELE at her Munich show this weekend. I’m not normally a great fan of that type of music but was surprised how much I enjoyed it. Her voice is stunning, and of course she now has quite a catalogue of very familiar hits. Coupled with the show itself (including a 200 meter wide stage show screen display !) it really was a surprisingly wonderful experience.

and there was me thinking that I’d reached the ultimate in “separates” when I bought a DAC to connect to my CD Player some years ago….

! Thread Title = “DCS Suing GoldenSound!” seems to have become a bit lost….

good point… the text talks about asynchronous USB so I guess the one shown in the diagram is the USB Audio port. Your earlier point about not knowing what goes on inside the unit also still remains the key point….

as followup I just searched on “Oppo 105 Functional Block Diagram” if you look at the page I attached, it shows: - USB IN goes directly to a block called “2-channel DAC” - HDMI1/HDMI2/LAN/Optical Disk go directly to a different block called “Multichannel AV Decoder Processor with Analogie and Digital outputs” before it is passed to the 2-channel DAC The implication is that the DA conversion of USB and SACD discs are handled inside the 105 by different bits of engineering…

one obvious difference is that data from the SACD optical drive has to go through different hardware/ processing to the DSF data on a hard drive… ie read in chunks from disc via laser etc some form of disk reading error detection/ correction chunks buffered in some form of memory/ cache readout of memory/cache the whole hardware/ firmware readout process of the SATA SSD is different, though it’s hard to know if the end result at the DAC is intended to be the same. So whilst the DSF data on the surface of the SACD disk, and within the SSD might be the same bit structure, they undergo quite different processes before they arrive at the common input point, because of the way that data is physically read and transferred. Sadly I’d love to have a deeper technical understanding to explain this better but I don’t (and I’d guess there must be other differences related to clocking as well)

is that particular “USB input” really specified/ capable of handling the full bandwidth ? What were you playing the DSF file on ? (a USB stick or some other device ??)

not at all.. you’re talking about a relatively small number of people who make a lot of posts on this thread. I have identical setup as you (Makua+phono+DAC) + (Mu1) and have no interest in getting rid of an analogue pre-amp stage. Earlier experience also convinced me that less (components) is not always more (sound quality). I also have a turntable so that’s a factor… I’ve also seen some comments from people who did not find the switch “better”, so I think it’s only something you can decide for yourself by demo/ listening if you can. I’d never base a decision on what other people write (including me !)

of course it’s escalation - It is an escalation step that transitions from the informal exchanges to the formal. It’s not really optional, because if you don’t give the other party a chance to remedy then you weaken your eventual outcome. It is the point where you give up on informal resolution so is most definitely an escalation.

not really (except you of course need to enable the option, just once). Once enabled, it does its own thing and fills in your empty time with new stuff that you may like, based on its own learning algorithms. You’ve not used it - don’t be misled by the word “radio” into thinking that it’s like a conventional radio channel !

that’s called Roon (Radio) isn’t it ?

neither - refer to Grimm’s own documentation https://www.grimmaudio.com/wordpress/wp-content/uploads/Manual-MU2-Hardware-v1.1.pdf page 6: the FPGA is between the streamer and the DAC. Of course, synoptic /block diagrams can be written in different ways depending on what you’re trying to represent, but as this is the “Hardware Manual” it’s pretty safe to assume it’s a good representation of the hardware.

Slightly off your original question, but while you’re at it I would consider batch converting all those .wav files to a lossless format for archiving as well. You could keep them as .wav, but IMO the “source files” would be more usable as FLAC, AIFF or ALAC depending on your computer system… ie: 1) keep your original .wav hard disk in a cupboard as archive/ backup 2) use the FLAC,AIFF,ALAC version as a master lossless version 3) use the derived MP3 lossy version on your phone just a suggestion as I don’t particularly find .wav very usable.

thanks… so I have just been reading & learning about the difference between Redbook and Data CD Mode 1 & 2… The redbook player firmware does have some error correction (the CIRC you mention) but I never realised that there was an interpolation done if a read-error was greater than the CIRC span (to avoid pops, bangs & halts during audio playback). good to have learnt something ! It also explains why tools such as EAC /dBPoweramp etc should be used for ripping if you really want a guaranteed 100% copy…