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What is the true experimental tweak thread all about? I have always wanted a thread where any subject is possible. No experiment is too crazy to add here. No idea is too bold to reviel. Take it away! Enlight your thoughts and share your ideas how to improve SQ. Anyone can encurage and educate you but no one should let you down, deminage you or simply move you to another thread. Everyone is welcome as long as they accepts a different way of thinking! Topic digest I, with a little help of @austinpop, have realised that this thread is all over the place. Even if this is one of the fundamental ideas behind this thread, it could be a good idea to sum-up the things that have proven to be beneficial to SQ in this thread. I will keep it simple. Remember that these are essentially my own findings in my own setup with Tidal FLAC and Tidal MQA as source. As always YMMV! Ethernet # Cat 6a U/UTP 500Mhz ethernet cables sounds better than Cat5, Cat5E, Cat6 & Cat7+. # Network switch improve SQ with input on port 1 and output on the last port. QoS? # Using a AQVOX switch with better clock improves SQ compared to a D-Link DSG-105 network switch. # A wireless adapter/router in client mode into a network switch sounds better than battery powered FMCs and hardwired LAN. # Router vastly improves SQ with a floating LPS. # Galvanic isolation/DC blocker pre the router improves SQ. # Wireless adapter vastly improves connected to a floating IT. # RJ45 socket improvements seems to be more efficient on port 4 & 5. Don't ask me why! Grounding # Grounding a metal chassi network switch to a tourmaline grounding box greatly improves SQ. # Different tourmaline grounding boxes improves the sound signature in different ways. USB # Covering the outer USB barrels with electrical tape improves SQ slightly with unshielded USB cables. Capasitive coupling between metal barrel and pins? DC # Network switch sounds best with dual floating PSUs or battery power (but very important to disconnect the battery charger while listening to music). # Powering several devices with a single floating SMPS sounds better than powering the very same devices with several battery supplies. Self-inflicted noise? # Canare 4S6 starquad does improve SQ where ever applied. Thanks to@JohnSwenson! # With a DC blocker trap filter pre a floating IT the SQ improves when battery chargers is connected to a separate powerstrip directly to the AC wall outlet, bypassing the floating IT. AC # A DC blocker trap filter pre a safety isolation transformer improves SQ even though it is dead silent (no hum). DC stress reliever? # A safety isolation transformer improves SQ more than a Ultra Isolation transformer. # Daisy chained floating grounds sounds better than a single floating ground. In my setup floating SMPS's improve SQ connected to a floating IT. Thanks for the suggestion @lmitche! # AC mains starquad power cables greatly improves SQ on floating SMPS.
I think it's time to see if we can unite in a subject that stir up a lot of feelings here at CA. It is like a new USB cable discussion. So, how about the grounding boxes? Why do they work? How could they possibly improve SQ? Considering the tons of great reviews they must work in some way, right? This thread belongs to both believers and disbelievers of grounding boxes. Let's get this hot subject sorted out ones and for all! 😊 Anything from scientific materials to personal ideas are most welcomed. I am a personal believer in that scientist is just a person with an extremely curious mind. Above all keep it civil and without any personal attacks or "stupid" comments please! 😉
I've been a big fan of proper grounding of a system since actually doing it a few years ago. My main power strip is a Nordost QB8 which has a very convenient ground lug. I have attached to it a separate earth ground (different from my electrical box house ground) and to a Entreq Sliver Tellus using their Apollo wire. This has been my setup for about 3 years now. I was very please with the darkness of my background not only with nothing playing but within tracks/notes the silence where it was supposed to be was great. There are also improvements in the bass as well. I never went the whole way with the Entreq box to ground other components of my system not sure why just never did. Fast forward today I now have two demo Silver Tellus minimus each connected to my Bricasti M28 amps using Silver Eartha cables (connected is to the negative speaker terminal). In-addition to my Silver Tellus I connected to a RCA input to both my Bricasti M1 DAC and Aurender N10 Atlantis using Apollo Eartha cables. I just got it hooked up last night and for those that don't know it takes the Entreq products about a day to reach full potential. So Tonight I plan on doing some listening to see if there are even greater improvements. Also Nordost is coming out with a grounding box called QKore. I should have a demo box here later next week as I want to compare. They have some write up on how its constructed on their web site but its considerably smaller and lighter then the Entreq solution. However I think the $$'s to spend may be similar. From what I've read the Nordost solution is active right away so that will be helpful doing a compare. Both the Entreq and Nordost solutions are passive solutions. I'm sure the cable crowd that thinks cables don't make a difference will jump all over this but infact proper grounding does indeed improve the listening experience. More on this later.