Piling Naim units - does it degrade audio even more?

kowalski posted:

Richard Dane posted:

The best idea would be to get the kit properly earthed, either through having the wiring and sockets in the apartment updated or some other solution.  Quite apart from performance issues, to be safe the kit must be properly earthed otherwise a fault condition could make the casework live with nasty consequences.

i had my naim for approx 15 years until now nothing happened thank god.

old apartment buildings built in the 50's and 60's don't have earthed wall sockets, only earthed wall socket is in the kitchen for kitchen aplliencies.

I bought a 10M long Supra LoRad with an earthed schuko male plug in the one end. I will screw a female earthed schuko in the other end of my cable, I will use this cable as an extension cord, I will drag the cable from my man cave to my kitchen. I will plug my LoRad in my kitchen getting my Naim earthed, I bet I will hear the proper Naim sound when it's properly earthed

Kowalski, where do you live? Are your wall sockets are really not earthed? WOW....I'm no qualified electrician but that sounds rather dangerous!

kowalski posted:

I live in an old apartment building, in the man cave where I have my Naim set up there are no earthed wall sockets. Only unearthed wall sockets. I have only 1x earthed wall socket in the kitchen in my apartment. So when I connected my HiFi VCR to my Naim I got an unwanted ground loop buzzing all the time, so I had to by a ground loop breaker Tratec Tris from my local HiFi store, I had to connect this Tratec between my VCR and the aerial outlet killing my constant humming. My Naim NAP150 picks up interference from white goods, noise do get louder and sometimes lower it depends? Would it be a good idea to by a DC Trap reducing noise from electricity?

My Supra MD06-EU/SP has an non intrusive filter (NIF) shouldn't this NIF feature remove humming from my NAP150? Some people doe not recommend using a Supra mainsblock

Just get your electrician to run an earth cable to your hi-fi. I had exactly the same problem in my previous flat.

Roadie Simon posted:

kowalski posted:

Richard Dane posted:

The best idea would be to get the kit properly earthed, either through having the wiring and sockets in the apartment updated or some other solution.  Quite apart from performance issues, to be safe the kit must be properly earthed otherwise a fault condition could make the casework live with nasty consequences.

i had my naim for approx 15 years until now nothing happened thank god.

old apartment buildings built in the 50's and 60's don't have earthed wall sockets, only earthed wall socket is in the kitchen for kitchen aplliencies.

I bought a 10M long Supra LoRad with an earthed schuko male plug in the one end. I will screw a female earthed schuko in the other end of my cable, I will use this cable as an extension cord, I will drag the cable from my man cave to my kitchen. I will plug my LoRad in my kitchen getting my Naim earthed, I bet I will hear the proper Naim sound when it's properly earthed

Kowalski, where do you live? Are your wall sockets are really not earthed? WOW....I'm no qualified electrician but that sounds rather dangerous!

If he lives in my part of Europe, that would be quite common - Earth would be shorted to N. It's relatively OK for plugging in a fridge or a lamp. But wrecks havoc with Naim....

I live in Sweden, old apartment buildings don't have earthed wall sockets only newer buildings.

Back of the Naim chassies it clearly states this apparatus must be earthed.

Many years ago I got a power cord earthing tweak, this was really dangerous and NOT recommended to do! My local hifi dealer made me a tweaked earthed extension cable with a female/male running an earthed wire which was connected to my water radiator. Connecting this way I had the constant humming removed, what my hifi dealer didn't tell me was that could be a potential DEATH hazard if my electronics had any fault in them, I could have killed everyone of my fellow neighbours in the other apartments if they had touched the water radiator. A buddy of mine told me I had to remove the home made tweak cord.

This is NOT recommended to do connecting a loom to your water heating radiator in your apartment, if there is a fault in your hifi you will fry anyone touching the the radiator!! Making you a murderer!! Ihad to buy a Tratec Tris to get rid of my constant humming

Don't do any stupid tweaks risking your own and other peoples lives

Roadie Simon posted:

Kowalski, where do you live? Are your wall sockets are really not earthed? WOW....I'm no qualified electrician but that sounds rather dangerous!

Non-earthed power systems & installed 2 pin sockets in domestic supplies is both an old legacy (left over) in a number of european countries,  but also is still legal in some (CEE -7)    Its the same for 'polarisation' - there is no compulsory adherence to what socket/pin L&N goes to.       

Mike-B posted:

Roadie Simon posted:

Kowalski, where do you live? Are your wall sockets are really not earthed? WOW....I'm no qualified electrician but that sounds rather dangerous!

Non-earthed power sockets in domestic supplies is both an old legacy (left over) in a number of european countries,  but also is still legal in some.    Its the same for 'polarisation' - there is no compulsory adherence to what socket/pin L&N goes to.       

old CRT tv's - video players - dvd players never had any earthing plugs.

I have a Supra phase pen, I checked all my  wall sockets for polarisation on L (live) and N (neutral) with my phase pen for best audio performance. I have connected my plugs the correct way for phase 

Don't confuse with double insulated kit that needs no dedicated mains earth connection.  Usually this is found on cheaper electronics.  It's double insulated so should be perfectly safe.

Phase is something that is well worth checking - both at the socket and also from mains plug to IEC.  

kowalski posted:

old CRT tv's - video players - dvd players never had any earthing plugs.

I have a Supra phase pen, I checked all my  wall sockets for polarisation on L (live) and N (neutral) with my phase pen for best audio performance. I have connected my plugs the correct way for phase 

God dag Kowalski,   most/all modern TV's etc are not earthed,  my new TV is 2 wire,  ditto BlueRay & PVR,  but they are supplied in UK with a 3 pin plug moulded on the 2 wire cable.     However my old TV (10 years) did have an earth (3 wire cable) connected via an IEC320 plug,  I know because I extended the cable - using Supra (svenska) LoRad 1.5  !!! 

Richard Dane posted:

Don't confuse with double insulated kit that needs no dedicated mains earth connection.  Usually this is found on cheaper electronics.  It's double insulated so should be perfectly safe.

Phase is something that is well worth checking - both at the socket and also from mains plug to IEC.  

back of my videoplayers there are power approval information, 2 squared boxes put into each other means electronic device is dubble insulated avoiding shock hazards if something goes wrong.

correct phase makes audio sound better, back of the Naim IEC connector, mains plug goes only one direction for correct L and N/earthing and I plugged the other end in the wall socket with the phase IN. Voila sound is better

Mike-B posted:

kowalski posted:

old CRT tv's - video players - dvd players never had any earthing plugs.

I have a Supra phase pen, I checked all my  wall sockets for polarisation on L (live) and N (neutral) with my phase pen for best audio performance. I have connected my plugs the correct way for phase 

God dag Kowalski,   most/all modern TV's etc are not earthed,  my new TV is 2 wire,  ditto BlueRay & PVR,  but they are supplied in UK with a 3 pin plug moulded on the 2 wire cable.     However my old TV (10 years) did have an earth (3 wire cable) connected via an IEC320 plug,  I know because I extended the cable - using Supra (svenska) LoRad 1.5  !!! 

hejsan svejsan (hello hello)

Jag gillar mina nya LoRad 3x2.5 MKII mycket bättre - I like my new MKII LoRad's much better than my previous 15 year old LoRad's which were 3x1.5

I only use old skool electronics nothing new, my laptop and my Naim are the only devices using earthed plugs, the rest is unearthed.

johej leverpastej

kowalski posted:

Mike-B posted:

Roadie Simon posted:

Kowalski, where do you live? Are your wall sockets are really not earthed? WOW....I'm no qualified electrician but that sounds rather dangerous!

Non-earthed power sockets in domestic supplies is both an old legacy (left over) in a number of european countries,  but also is still legal in some.    Its the same for 'polarisation' - there is no compulsory adherence to what socket/pin L&N goes to.       

old CRT tv's - video players - dvd players never had any earthing plugs.

I have a Supra phase pen, I checked all my  wall sockets for polarisation on L (live) and N (neutral) with my phase pen for best audio performance. I have connected my plugs the correct way for phase 

I ran my whole house 'backwards' for several months once, thanks to the regional electricity supplier sending an electrician to replace the connection from my meter to the consumer unit. Maybe he was colour blind, as he connected the tails the wrong way round. Everything ran fine, until an unsuspecting heating engineer nearly killed himself by touching what he thought was a neutral wire!

ChrisSU posted:

kowalski posted:

Mike-B posted:

Roadie Simon posted:

Kowalski, where do you live? Are your wall sockets are really not earthed? WOW....I'm no qualified electrician but that sounds rather dangerous!

Non-earthed power sockets in domestic supplies is both an old legacy (left over) in a number of european countries,  but also is still legal in some.    Its the same for 'polarisation' - there is no compulsory adherence to what socket/pin L&N goes to.       

old CRT tv's - video players - dvd players never had any earthing plugs.

I have a Supra phase pen, I checked all my  wall sockets for polarisation on L (live) and N (neutral) with my phase pen for best audio performance. I have connected my plugs the correct way for phase 

I ran my whole house 'backwards' for several months once, thanks to the regional electricity supplier sending an electrician to replace the connection from my meter to the consumer unit. Maybe he was colour blind, as he connected the tails the wrong way round. Everything ran fine, until an unsuspecting heating engineer nearly killed himself by touching what he thought was a neutral wire!

this is what happens in countries where electrical safety is not 100% approved from authorities, water heating boilers in the bathrooms might sometimes be connected the wrong way causing death traps frying people, countries in eastern europe use these boilers in batrooms.

swedes are known for their S-mark safety approval label back of the chassie

hejsan svejsan - again.     I have LoRad 2.5mm (old type) from my wall socket to power 6 way socket plate.   Up to 4 weeks ago I had LoRad 2.5 & 1.5 to the Naim equipment,  then I received some new power leads that are supposed to be good SQ & I've used those on my NDX & SN PSU's,  they did make a small difference in the SQ fine detail.   I've since changed the LoRad 2.5 & 1.5 on the SuperNait & NAT-05 & replaced it with a traditional metal braid & foil shielded 2.5,  this was also a small improvement in fine detail,  its not significant & to anyone other than a hifi nerd, no one else would hear it,  but (sorry to say) the LoRad is not going back.   However the LoRad from the wall socket runs through an area that has ethernet cable & SMPS's located & I have no doubt the LoRad is the most effective in rejecting EMI & RFI emissions,  so that is staying.   

are there other cable manufacturers besides Supra Jenving T.  investing money in developing  cables rejecting EMI/RFI? One swedish Naim dealer told me Supra is a boring mains lead killing all the fun in music details when listening to music, that's because LoRad is way too shielded murdering the passion of listening to music.  Naim dealer claimed it's no fun using LoRad on an Naim.