Best 6-Input Power Strips with Anti-Interference Filter for 750W PC & Peripherals in 1970s Building

Hello! I am looking for a good power strip with a good anti-interference filter. I live in a building with an old type of electrical installation. The building was built in the 1970s. I want to connect a PC and peripherals to the strip. The whole set is unlikely to exceed 750 watts of current consumption under load. I would like to buy a strip that will provide me with good filtering against interference, because the speakers and the router are sensitive to interference and therefore the internet works slower and the speakers hiss, etc. On this forum, in another thread, I read that the ACAR 504 wf is a good strip, but in In stores, I usually found strips that have only 5 inputs, I would use at least one more, because I would not like to use additional splitters. I don't need more than 2 meters of cable.

Thanks and best regards

E.g. ACAR POWER STRIP - 1.5M S8

As for the topic, there are no good letters...

cegulla wrote:

I live in a building with an old type of electrical installation. The building was built in the 70s.

So you may be dealing with a weakened PEN/N/neutral conductor.
This can result in voltage surges in the 230-400V range.
Such increases will not be eliminated by any skirting board, no matter how much it would cost.

Is there anything I can do about this weakened cable you're talking about? Would it have to be forged and replaced or can it be done without it?

As for this voltage, I recently measured the voltage in the socket and it was ok, would these increases be periodic or continuous?

cegulla wrote:

Is there anything I can do about this weakened cable you're talking about? Would it have to be forged and replaced or can it be done without it?

Can be.
It is enough to invite an electrician-measurer who will diagnose the condition of the installation.

Could you elaborate on what to do next after the electrician's visit? How would he solve this problem? I'm asking because I'm curious about these things

cegulla wrote:

How would he solve this problem?

But what's the problem?

zbich70 wrote:

So you might be dealing with weakened PEN/N/neutral conductor.
This can result in voltage surges in the 230-400V range.
Such increases will not be eliminated by any skirting board, no matter how much it would cost.

This is probably the problem, which causes interference that the speakers and the router pick up quite well.

zbich70 wrote:

This can result in voltage surges in the 230-400V range.
Such increases will not be eliminated by any skirting board, no matter how much it would cost.

That's not the point mate.

Quote:

I would like to buy a strip that will provide me with good filtering against interference, because the speakers and the router are sensitive to interference and the internet works slower and the speakers hiss, groan, etc.

A strip with a ferrite core will significantly reduce interference.

Quote:

because the speakers and the router are sensitive to interference and the internet works slower

I do not believe that the router is sensitive to interference.
I don't believe in slowing down the internet. For this reason.
That the speakers "hiss" - possible ?? But .... This hissing is probably the amplifier waking up. Not because of interference.

Why does the amplifier wake up? The speakers were twice at the guy who repairs TV sets, speakers, etc. The first time I took them because one speaker did not work and I noticed the hissing, but the Lord said that the speakers were turned on all day and not once, the second time together I gave them back because they were still hissing and nothing happened at the foreman, after returning immediately the speakers began to moan. It seems to me that there is a domino effect. There is a disturbance in the socket, which is transferred to the speakers and these interfere with the Internet (I take this into account, because I do not have a fiber optic cable, and I use LTE)

What strip has a ferrite core?

Hello

CYRUS2 wrote:

I do not believe that the router is sensitive to interference.
I don't believe in slowing down the internet. For this reason.

We know the physical relationship between frequency response, signal power and noise power, and the achievable speed of information transfer.
In ADSL routers, this affects the negotiated sync speed. I have seen several times that interference on the 230V side (mainly those of a common nature) affected the level of interference on the ADSL port, in extreme cases preventing synchronization.

This remark does not apply to kol. cegulla as it uses LTE technology. LTE is a common channel, if more people connect, the speed must drop. Maybe there's a problem here.

kiss
-DAREK-

Darom wrote:

in extreme cases, preventing synchronization.

I agree that it will be very disruptive.
But it won't slow down.
This is a zero-one message.

Quote:

when more people join, the speed has to go down. Maybe there's a problem here.

But that has nothing to do with interference.

cegulla wrote:

A disturbance is created in the socket, which is transferred to the loudspeakers

Speakers - out. Nothing will enter the speakers.
You can have an unshielded analog input. Or a badly connected screen.

cegulla wrote:

and these interfere with the operation of the Internet (I take this into account, because I do not have fiber optic, and I use LTE)

Wrong conclusions.

CYRUS2 wrote:

Darom wrote:

in extreme cases, preventing synchronization.

I agree that it will be very disruptive.
But it won't slow down.
This is a zero-one message.

Not true, both LTE and ADSL are not binary transmissions.

The 0/1 transfer is called baseband transmission. Then a certain physical quantity (e.g. voltage) is assigned two states 0 and 1. Ethernet, RS-485, RS-232, Profibus, ISDN contact, S/T contact, USB, bus between the CPU and the main memory (in computer) and much more...
Baseband digital transmission is great for short distance transmission.

The most commonly used data transmission channels (radio waves, twisted-pair copper, coaxial cable, optical fiber) are characterized by many unpleasant phenomena: reflection, attenuation and uneven phase, dispersion, interference .... etc.. therefore, the matching of the transmission channel is used .
LTE and ADSL (but also e.g. DVB-T/C/S, ISDN U-connector, VDSL and many others) are digital transmissions adapted to the transmission channel. This is done using Modulators and Demodulators (Modems). The most "fashionable" modulations are QAM, QPSK and OFDM. As part of the greeting (handshaking), the modems agree on such a modulation type to minimize the number of transmission errors with the existing S/N interval. If the error rate suddenly increases - they can renegotiate the connection parameters.

Colleagues who have ADSL modems/routers can see two given line parameters: attenuation and S/N spacing (both for Down and Up direction)

greetings
-DAREK-