Ralph Morrison was more about large recording & TV studios. It was Neil Muncy that wrote about the infamous 'pin 1 problem' and other interconnect problems at the component level. It took pro audio equipment manufactures a decade to sort out the 'pin 1 problem' and now another decade later some audiophile equipment manufactures still haven't.
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With my copper block grounding box, don't connect incorrectly wired XLR or RCA chassis connectors to the box.
As far as passionate and extreme goes with grounding I'm right up there with you so are a few of my buddies, this is only one of 4 different ground networks that I've installed in my home and my friends have other ones. What I was pointing out is that there's nothing new here wether it's in a box or out there in the field, just gotta figure out what sounds and works best for you.
John, Yes it does,in fact leakage and current interference can be passed to ground with signal and chassis grounding...but it must be done properly. The size of the pathway is key...everything else is insufficient and too costly. The designs now cannot get the job done, they are to constricted.
John, Yes it does,in fact leakage and current interference can be passed to ground with signal and chassis grounding...but it must be done properly. The size of the pathway is key...everything else is insufficient and too costly. The designs now cannot get the job done, they are to constricted.
I'm interested in the other two people you mentioned that were following your lead & their journey - how did they get on - any reports?
It's interesting that Audio Precision & other measuring equipment manufacturers are aware of leakage current issues between connected devices & provide chassis connectors to ground their analysers to devices being measured.
Medical device manufacturers all know about leakage currents & have to meet certain standards
It seems that only in the world of audio is there a blind spot about this & a willingness to deny it exists - "we know all about grounding" - oh yeah? Do tell
If you mean using chokes, filters, chassis drain, speaker ground drain, capacitors, transformers, etc. the answer is yes and in every case the sound became worse. My experience is that in the end it all comes to the earth.
If you mean using chokes, filters, chassis drain, speaker ground drain, capacitors, transformers, etc. the answer is yes and in every case the sound became worse. My experience is that in the end it all comes to the earth.
I'm interested in the other two people you mentioned that were following your lead & their journey - how did they get on - any reports?
It's interesting that Audio Precision & other measuring equipment manufacturers are aware of leakage current issues between connected devices & provide chassis connectors to ground their analysers to devices being measured.
Medical device manufacturers all know about leakage currents & have to meet certain standards
It seems that only in the world of audio is there a blind spot about this & a willingness to deny it exists - "we know all about grounding" - oh yeah? Do tell
Yes John, in fact the one I correspond with on a regular basis today told me that he had developed a important breakthrough. This is not about incremental advances. This is about blasting through barriers of sound quality in every sonic way. I believe this will benefit digital in a profound way. Very exciting and we both are extremely pleased.
Yes John, in fact the one I correspond with on a regular basis today that he had devolved a important breakthrough. This is no about incremental advances. This is about blasting through barriers of sound quality in every sonic way. I believe this will benefit digital in a profound way. Very exciting and we both are extremely pleased.
Tried both connecting the chassis ground post (all Lamm equipment has them) or the chassis screws with 12 gauge ground wire to the rack, to the house rebar, radiator, metal window frame and dedicated ground rods, chemical, hollow pipe, solid rods and 100' of #2 conductor buried in the ground and covered with GEM. I also purchased interconnects with pigtails for chassis drain, same for the speakers. I purchased several brands of speaker wires that come with a pigtail for this purpose, some you need to connect the pigtails at both the amp & speaker end and some only at the speaker end.
Tried both connecting the chassis ground post (all Lamm equipment has them) or the chassis screws with 12 gauge ground wire to the rack, to the house rebar, radiator, metal window frame and dedicated ground rods, chemical, hollow pipe, solid rods and 100' of #2 conductor buried in the ground and covered with GEM.
And all devices in the playback chain connected to this grounding point?
For the speakers I purchased several brands of speaker wires that came with a pigtail for this purpose, some you need to connect the pigtails at both the amp & speaker end and some only at the speaker end.
I've heard of this before but never had much truck with it - the pigtail is supposed to act as some sort of 'electron pool' or something like that?
In all instances the sound was made worse by the central grounding of all device in the chain?
I would say by comparing notes that both schemes are comparable. Now I have yet to hit a wall,so a combined effort could indeed yield improved results over what I have experienced.
Let's clarify, so we know what we're talking about
- Star grounding the equipment electrically to a dedicated earth yielded great results.
- Floating electrical ground, chaining all chassis together and then connection to dedicated earth network, little change in sound.
- Floating electrical ground, star connection to ground via chassis ground posts, less noise.
- Electrically grounded equipment, even if only one component all chassis draining scenarios or use of any filtration of any kind made sound worse, either darker and rolled off or thinner and harsher but always negative. The only exception is grounding/draining? of the preamp playing digital on a bad electricity day the highs were slightly sweeter specially with strings.
- I had very poor results using the popular litter boxes, they do change the sound as do different wires, just for the worse in my case.
Any combination that you can imagine, individually and collectively also with everything grounded and/or floating.
Depends on the manufacturer John, they all have their own spin on it.
Let's clarify, so we know what we're talking about
- Star grounding the equipment electrically to a dedicated earth yielded great results.
- Floating electrical ground, chaining all chassis together and then connection to dedicated earth network, little change in sound.
- Floating electrical ground, star connection to ground via chassis ground posts, less noise.
- Electrically grounded equipment, even if only one component all chassis draining scenarios or use of any filtration of any kind made sound worse, either darker and rolled off or thinner and harsher but always negative. The only exception is grounding/draining? of the preamp playing digital on a bad electricity day the highs were slightly sweeter specially with strings.
- I had very poor results using the popular litter boxes, they do change the sound as do different wires, just for the worse in my case.