I have a small box that says "Mains interference suppressor", above which there is a label "PANDA - distributed by Pact International Ltd".
On the side of the box it says "This unit is suitable for audio & hi-fi equipment".
There is a mains plug (UK type), and the box has a socket for a standard UK plug.
Does anyone know about this? Is it worth adding it to my system?
How can I test it and see what it does?
Thanks. 🙂
On the side of the box it says "This unit is suitable for audio & hi-fi equipment".
There is a mains plug (UK type), and the box has a socket for a standard UK plug.
Does anyone know about this? Is it worth adding it to my system?
How can I test it and see what it does?
Thanks. 🙂
It's a basic EMI filter, it does reduce the radio frequency noise generated on mains wires by LED lamps and other household electronics. New Hi-Fi devices have this component fitted inside already, but older ones don't, and they may benefit from the filter. On some vintage amplifiers I hear a slight background noise reduction when EMI filter is added. On most devices It doesn't make any audible difference to me, but you may add it "just in case". By the way, the filtering action can be done with a generic filter for industrial use that is usually much cheaper than filters for Hi-Fi market, but it can be a bit ackward to connect.
Thanks very much for your reply.
I am going to try it out. My system is quite old: Bead P100 (using something else, as it is was not working properly) with Beard 650 pre-amp, combined with Quad ESL-63 speakers.
Thanks again.
Eli
I am going to try it out. My system is quite old: Bead P100 (using something else, as it is was not working properly) with Beard 650 pre-amp, combined with Quad ESL-63 speakers.
Thanks again.
Eli
My internet search for PANDA turned up Perinatal Anxiety & Depression Australia which pretty closely describes the condition of audiophiles worrying about power conditioning when they have recently, or are about to, acquire new kit.
Mains filters are more a necessity than luxury nowadays but make sure to check the voltage/current/power ratings as you seem to have tube devices that can be power hungry. So find out to prevent the filter from being overloaded just like it would be the first thing you would ask yourself with any new device that is designed to be inserted. If it is for instance only meant for sources that consume less than 250VA this will become clear by knowing the power ratings. Nearly all good filters need a PE connection for correct operation...
Also make sure to use input RC filters on older amplifying devices because of the abundance of HF/RF being so normal in the aether today.
Also make sure to use input RC filters on older amplifying devices because of the abundance of HF/RF being so normal in the aether today.
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