Dedicated Spurs - anything new?
Posted by: markah on 25 October 2006
Any advice on what is the best way to go about a dedicated spur? A lecky friend of mine (who has no idea about hi-fi, if it makes a difference!) has agreed to sort it out for me; just wondering about cable diameter etc. System is CDX2/282/NAPSC/200/Headline/i-Supply and about to add 555PS. I have done a search through previous threads but there is not much specific advice.
Thanks in advance.
Thanks in advance.
Posted on: 25 October 2006 by markah
quote:Originally posted by markah:
Any advice on what is the best way to go about a dedicated spur? A lecky friend of mine (who has no idea about hi-fi, if it makes a difference!) has agreed to sort it out for me; just wondering about cable diameter etc. System is CDX2/282/NAPSC/200/Headline/i-Supply and about to add 555PS. I have done a search through previous threads but there is not much specific advice.
Thanks in advance.
PS Forgot to add - lots of hum from the 200!
Posted on: 25 October 2006 by sktn77a
quote:PS Forgot to add - lots of hum from the 200!
Is this a mechanical hum from the 200 transformer, or an electrical hum? The mechanical hum is not normal but not uncommon, especially if you have a noisy mains supply. This hum is usually worse right when you switch it on and gets better if you leave the amp on for a while.
Keith
Posted on: 26 October 2006 by Beano
Leave your front door open and I'll guarantee your problem will disappear!
Posted on: 26 October 2006 by manicatel
There seems to be 3 main choices of wiring diameter.
2.5mm, ie standard mains cable
6mm, or 10mm.
Most here seem to recommend going for the 6mm, as it has lower impedance.
The 10mm stuff also has its fans, but I do seem to recall reading on various threads (there are quite a few on the subject if you do a search) that some people thought the 10mm wasn't as good as the 6mm. Can't quite remember why.
MK or Crabtree unswitched sockets, & plugs are favoured. I like the MK ones. They just seem to feel better quality to me.
Hope that helps a bit,
Matt.
2.5mm, ie standard mains cable
6mm, or 10mm.
Most here seem to recommend going for the 6mm, as it has lower impedance.
The 10mm stuff also has its fans, but I do seem to recall reading on various threads (there are quite a few on the subject if you do a search) that some people thought the 10mm wasn't as good as the 6mm. Can't quite remember why.
MK or Crabtree unswitched sockets, & plugs are favoured. I like the MK ones. They just seem to feel better quality to me.
Hope that helps a bit,
Matt.
Posted on: 26 October 2006 by markah
quote:Originally posted by sktn77a:quote:PS Forgot to add - lots of hum from the 200!
Is this a mechanical hum from the 200 transformer, or an electrical hum? The mechanical hum is not normal but not uncommon, especially if you have a noisy mains supply. This hum is usually worse right when you switch it on and gets better if you leave the amp on for a while.
Keith
The hum is mechanical I think and as you say probably caused by noisy mains supply. It doesn't really get any better the longer I leave it on, which is most of the time. I'm having the dedicated spur done as a freebie by an electrician friend who owes a favour so hopefully this may help. If not I've lost nothing!!
Posted on: 26 October 2006 by markah
quote:Originally posted by manicatel:
There seems to be 3 main choices of wiring diameter.
2.5mm, ie standard mains cable
6mm, or 10mm.
Most here seem to recommend going for the 6mm, as it has lower impedance.
The 10mm stuff also has its fans, but I do seem to recall reading on various threads (there are quite a few on the subject if you do a search) that some people thought the 10mm wasn't as good as the 6mm. Can't quite remember why.
MK or Crabtree unswitched sockets, & plugs are favoured. I like the MK ones. They just seem to feel better quality to me.
Hope that helps a bit,
Matt.
Thanks manicatel for your advice, I'll have a chat with my electrically minded friend!
Posted on: 26 October 2006 by MichaelC
I have just had this done and will add: run the spur off a separate consumer unit.
Posted on: 26 October 2006 by paul_g
quote:Originally posted by sktn77a:
Is this a mechanical hum from the 200 transformer, or an electrical hum?
How would you tell the difference ?