Brantome
Moderator
Just as I derived pleasure out of cracking early BBC microcomputer games to get the passwords for each level rather than playing the games, some get pleasure out of tweaking hi fiā¦
Snake oil update! š
- Thread starter BowsAndArrows
- Start date
A BBC - high end unit in its day. I had to make do with a Sinclair Spectrum playing Monty Mole!
steadyshot
Major Contributor
- Joined
- Mar 14, 2023
- Messages
- 712
Anybody using ifi spdif purifier with coax only on WiiM pro plus or pro ? How do you connect it ? Directly to the WiiM coax output or directly to the dacās coax in ?
BowsAndArrows
Major Contributor
i'm using it with optical in + optical out. but to answer your question, there is no way to connect the S/PDIF ipurifier input directly to the WiiM coax output, cos they are both female ports??!
you'd still need a cable in between.you can connect the ipurifier's coax OUT directly into a preamp/amp cos that side is a male port.
BowsAndArrows
Major Contributor
haha, no sometimes i just read the sheet music + the frequency response curves for my speakers and imagine what it would sound like in my head. isn't that what you do??
other days when i'm feeling more "digital" i just read the raw I2S data coming out of my streamer while i'm hooked up to my amplifier's analog output via banana plugs!
Good to read "banana" in this context ;-)haha, no sometimes i just read the sheet music + the frequency response curves for my speakers and imagine what it would sound like in my head. isn't that what you do??
other days when i'm feeling more "digital" i just read the raw I2S data coming out of my streamer while i'm hooked up to my amplifier's analog output via banana plugs!
steadyshot
Major Contributor
- Joined
- Mar 14, 2023
- Messages
- 712
i'm using it with optical in + optical out. but to answer your question, there is no way to connect the S/PDIF ipurifier input directly to the WiiM coax output, cos they are both female ports??!
you can connect the ipurifier's coax OUT directly into a preamp/amp cos that side is a male port.
Thanks for your answer! So WiiM coax out - coax cable - purifier coax in and finally purifier coax out male to female dacās input .
I have qed performance coaxial and given that my dac likes coaxial better than optical I am thinking if purifier will bring improvements or a better coax cableā¦
I have already connected modem/router with qed performance Ethernet to netgear gs108e v3 switch and from switch a Supra cat 8 Ethernet to ifi lan silencer which is directly connected to pro plus lan port . Already have ifi power x feeding WiiM and AudioQuest power strip . And Supra lorad 2.5 spc power cable for amp . I donāt want to change speakers , or buy a dac or amp . Just further tweaking is what I am interested.
What I am thinking is AudioQuest carbon coaxial or qed reference digital 40 coax or purifier.
Last edited:
BowsAndArrows
Major Contributor
I'm guessing that the ipurifier will probably have a bigger impact than switching coax cables... but i haven't actually tested this myself.
i might actually test coax out from WiiM into the S/PDIF ipurifier with optical to my active speakers to compare it to the all-toslink route i have currently.
share your experiences here whatever you decide to tweak, anyways, it's helpful to the rest of us tweakers! 
out of interest - have you A/B tested the QED and Supra ethernet cables vs "standard" ones? did they make a significant impact on SQ? what about the LAN iSilencer? i'm considering getting some sort of galvanic isolator for my ethernet connection into the WiiM
steadyshot
Major Contributor
- Joined
- Mar 14, 2023
- Messages
- 712
I'm guessing that the ipurifier will probably have a bigger impact than switching coax cables... but i haven't actually tested this myself.
i might actually test coax out from WiiM into the S/PDIF ipurifier with optical to my active speakers to compare it to the all-toslink route i have currently.
out of interest - have you A/B tested the QED and Supra ethernet cables vs "standard" ones? did they make a significant impact on SQ? what about the LAN iSilencer? i'm considering getting some sort of galvanic isolator for my ethernet connection into the WiiM
I have only a/b the Ethernet from modem to switch with a ugreen and another cheap and ugreen was better and qed even better . The lan silencer made a big difference in sweetening the high frequency and the switch made a difference in overall clarity . Initially I had Supra connected to a WiFi to Ethernet bridge from tp link with good results but not the same as now . Now is much better .Connecting straight from modem to WiiM is much worse . So yes lan silencer is a no brainer and its most effective position is in WiiMās lan port
Mike in NY
Major Contributor
BowsAndArrows
Major Contributor
wow interesting. so you noticed further benefits from adding to the LAN silencer even though you already had a pretty low-noise network implementation? hmm.
it's also interesting to hear that you prefer this current network setup to the TP link repeater setup... i'm currently exploring the WLAN repeater (in bridge/client mode) solution myself, and some of us on other forums are experimenting with ferrite choke cores or ferrite throttles on some "standard" shielded ethernet cables. haven't tried any audiophile ones yet, but i might look into it...
I would be quite interested in the results of a test of the coaxial config on the ifi spdif purifier. I use delock ethernet isolation devices on all the ethernet connections of music streamers I have. They are a bit cheaper, but they not specifically designed for audio use. Happy with the results with them installed
What? VLANs are like cable risers. No snake oil there, just esoteric South-American wood.
That's what I thought!haha, no sometimes i just read the sheet music + the frequency response curves for my speakers and imagine what it would sound like in my head. isn't that what you do??
other days when i'm feeling more "digital" i just read the raw I2S data coming out of my streamer while i'm hooked up to my amplifier's analog output via banana plugs!
steadyshot
Major Contributor
- Joined
- Mar 14, 2023
- Messages
- 712
I will update when I decideā¦!
Steve Woodhouse
Major Contributor
- Joined
- Aug 11, 2023
- Messages
- 618
Haha, yeh so true!
For example - cheaping out on a clock crystal or its implementation in the device...
The Pro Plusā internal DAC jitter performance. Remember the threshold for human hearing distortion (proven many time in controlled double bling testing) is -115dB. In other words, look at the spike in the middle - thatās what youāre supposed to hear. Thatās set to 0 at its peak, so all the other information you see is quieter than that by the scale on the left. Youāll see that all jitter distortion is greater than 130dB below the signal. So completely and proveably inaudible.
Last edited:
Steve Woodhouse
Major Contributor
- Joined
- Aug 11, 2023
- Messages
- 618
The WiiM Miniās digital output jitter. Remember, if the noise at the bottom is greater than 115dB below the peak in the middle, itās impossible to hear.
Last edited:
Steve Woodhouse
Major Contributor
- Joined
- Aug 11, 2023
- Messages
- 618
We really need to get over this idea that high performance has to be expensive.
Yes, in some cases it does. But in others it doesnāt.
The bottom line is that thereās a limit to what humans can and canāt hear. In some cases, avoiding some of the nasties we can hear is both difficult and expensive, sometimes due to the cost of build quality, materials, and labour costs if the creation is labour intensive and requires a high level of skill (and hence pay).
But DACs do not require expensive parts - even the clocks you described are cheap, and their manufacture is largely automated. Design to eliminate issues, once done for the first time, is easily replicable in newer models.
Itās very, very difficult indeed for us humans to accept that we can get perfection on the cheap, because so often we just canāt; we have to pay, and pay well. And if thatās what we have to do, then thatās what we have to do.
But when a cheap solution is found, as we have with DACs, it really is astonishing for people to scramble around looking for reasons that we have to pay more than is required.
Yes, in some cases it does. But in others it doesnāt.
The bottom line is that thereās a limit to what humans can and canāt hear. In some cases, avoiding some of the nasties we can hear is both difficult and expensive, sometimes due to the cost of build quality, materials, and labour costs if the creation is labour intensive and requires a high level of skill (and hence pay).
But DACs do not require expensive parts - even the clocks you described are cheap, and their manufacture is largely automated. Design to eliminate issues, once done for the first time, is easily replicable in newer models.
Itās very, very difficult indeed for us humans to accept that we can get perfection on the cheap, because so often we just canāt; we have to pay, and pay well. And if thatās what we have to do, then thatās what we have to do.
But when a cheap solution is found, as we have with DACs, it really is astonishing for people to scramble around looking for reasons that we have to pay more than is required.
Steve Woodhouse
Major Contributor
- Joined
- Aug 11, 2023
- Messages
- 618
Itās the one concession I have to giving in to bias. Described perfectly here by Mitchell.
https://www.theguardian.com/comment...n-joint-and-back-advertising-standards-agency
Similar threads
