New Posts New Posts RSS Feed - Occasional hum
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Welcome to the Graham Slee Audio Products Owners Club

 

Open to all owners plus those contemplating the purchase of a Graham Slee audio product wishing to use our loaner program: join here
Subscribe to our newsletter here (Rules on posting can be found here)

Occasional hum
 Post Reply Post Reply Page  123 10>
Author
  Topic Search Topic Search  Topic Options Topic Options
CageyH View Drop Down
Senior Member
Senior Member
Avatar

Joined: 30 Apr 2012
Location: Toulouse, Franc
Status: Offline
Points: 1593 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Topic: Occasional hum
    Posted: 01 Apr 2023 at 8:03pm
It does not affect the system in anyway bad that I can hear, so I am happy with it.
The system almost seems to send more details, due to the lack of noise.

It has a very bright blue LED built in it though.
Kevin
European loan coordinator, based near Toulouse, France.
Back to Top
Ernie View Drop Down
Senior Member
Senior Member


Joined: 23 Jan 2014
Location: Birmingham UK
Status: Offline
Points: 379 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ernie Quote  Post ReplyReply Direct Link To This Post Posted: 31 Mar 2023 at 9:32pm
Be interesting to hear what you think of the conditioner. Keep us posted. Hopefully it cures your itch.

Edited by Ernie - 31 Mar 2023 at 9:33pm
There are 10 kinds of people. Those who understand binary and those who don't.
Back to Top
CageyH View Drop Down
Senior Member
Senior Member
Avatar

Joined: 30 Apr 2012
Location: Toulouse, Franc
Status: Offline
Points: 1593 		Post Options Post Options   Thanks (1) Thanks(1)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 31 Mar 2023 at 4:24pm
Today I have received my Isotek Evo Gemini mains filter. It is a bit of an expensive 2 way mains block, costing me just over €200.

I have plugged in it to my system, feeding my phono stage and preamp. So far, so good. The system has been powered up for over an hour, and no sign of the Buzz.

If this is what it takes to get rid of the noise (and hopefully have a better signal due to the lack of the noise) then it will be money well spent. I am sure I could probably build something cheaper, but this was much easier.
Kevin
European loan coordinator, based near Toulouse, France.
Back to Top
Fatmangolf View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 23 Dec 2009
Location: Middlesbrough
Status: Offline
Points: 8396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2023 at 6:41pm
Fingers crossed.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
Back to Top
CageyH View Drop Down
Senior Member
Senior Member
Avatar

Joined: 30 Apr 2012
Location: Toulouse, Franc
Status: Offline
Points: 1593 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2023 at 10:09am
No can do.
I don’t own a SS phono stage. I do have plenty available, but they are not mine. Wink

I am determined to fix the issue. I am a bit stubborn about these things. Hopefully it will be fixed at the weekend.
Kevin
European loan coordinator, based near Toulouse, France.
Back to Top
gwebster View Drop Down
Senior Member
Senior Member


Joined: 04 Oct 2014
Location: Liss, UK
Status: Offline
Points: 168 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gwebster Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2023 at 9:47am
Originally posted by CageyH CageyH wrote:

I think it is power related.

Out of desperation, I fitted ferrite beads on the internal power cables inside my phono stage, and the noise has dropped dramatically. I am hard pushed to hear it at normal listening levels (without music playing) so I have bought an Isotek power filter to see if that will help.
Is it worth swapping out your "lockdown special" valve hybrid phono stage and reinstating your previous solid state phono? 
As a valve unit, there is inherently more mains related guff floating about (heater, higher dc supply) in it.
Inspire Apollo tt, O/L modded RB250, Ortofon 2M Black, Slee Different Approach inspired Phono, Putzeys Pre, Cusat, Raspberry Pi/Volumio, Bitzie, Self Load Invariant Power, Acoustic Energy AE509s
Back to Top
CageyH View Drop Down
Senior Member
Senior Member
Avatar

Joined: 30 Apr 2012
Location: Toulouse, Franc
Status: Offline
Points: 1593 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 29 Mar 2023 at 8:31pm
I think it is power related.

Out of desperation, I fitted ferrite beads on the internal power cables inside my phono stage, and the noise has dropped dramatically. I am hard pushed to hear it at normal listening levels (without music playing) so I have bought an Isotek power filter to see if that will help.
Kevin
European loan coordinator, based near Toulouse, France.
Back to Top
 Post Reply Post Reply Page  123 10>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.205 seconds.