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Filtered Multiplier 8

- 'Star-wired' phase, neutral and earth for best performance

- Group I with two high current unfiltered contacts

- Group II with two individual filtered contacts for medium current loads

- Group III with four individual filtered contacts for low current loads or digital sources

- Unique Ground-Bridge selector for external 'audio' earth connection

- Clever indicator for proper mains connection

- Protects all eight contacts by the Pulse Protector inside

- IEC C20 input connector gives the freedom to use preferred power cord

Group II

Group II contacts each have their own high frequency Common Mode filter, so in total two filters can be found in this group. Connected loads do not "see" each other and disturbances from the mains supply or disturbances induced by one of the loads will not have a negative effect on the overall audio performance.


€ 2799,00


Protecting Phase-Neutral, Phase-Earth and Neutral-Earth

Maximum voltage: 250 Volt

Maximum peak voltage: 2500 Volt

Maximum peak current: 4500 Ampere

Maximum peak energy: 3x65 Joule

Response time: <25 nanoseconds

Maximum continuous current per socket:

        Group I   2 outputs max 16A each, max 16A in total

        Group II  2 outputs max 6A each, max 12A in total

        Group III 4 outputs max 2A each, max 2A in total

Maximum total current: 16 Ampere

Dimensions: 423(l) x 200(w) x 183(h) in mm

Weight: 18.5kg

The Filtered Multiplier 8 is supplied without a power cord. It will work with every power cord with an IEC plug C19 which is standard for high current equipment.

However to make you benefit from all the Filtered Multiplier qualities you need to connect to the mains supply with a Current Conductor HC

input type:

Unique Ground-Bridge selector

The Filtered Multiplier 8 is equipped with our unique Ground-Bridge selector. It offers you the option to connect to an external earth instead the earth from the wall socket which is shared with all other devices in your house.  In most cases this external earth is a special copper electrode placed deep into the ground, outside your house, preferably it is used for your audio only.

With the Ground-Bridge placed between the black and the green connector you have your Filtered Multiplier 8 connected to the wall socket earth. With the Ground-Bridge placed between both black connectors you can feed the external earth to the green connector on your Filtered Multiplier 8. 

mains supply earth selected

external earth selected



Clever phase indicator

The Filtered Multiplier has a very clever way to indicate that it is connected to the mains supply the right way. Two LED's will show you if the Filtered Multiplier has an input voltage, if earth is present and if the mains supply's phase is connected properly.

If the Filtered Multiplier is connected the right way, you will see two green lights. If one light is off or one light is red, something is wrong with your connection. Have a look at the figure for an explanation of the different indications.

Group III

Group III has four outputs, all together connected to a heavy Differential Mode / Common Mode filter and finally a separate Common Mode filter for each output.  The integrated DC blocker removes any DC offset from the mains voltage, preventing humming transformers in the load.

To group III you can connect sources like CD-players, turntables and D/A converters.

Here you can download the manual for the Filtered Multiplier 8:  manual-fm8.pdf

Group I

Group I has two unfiltered direct mains connections to facilitate the use of heavy power amplifiers and subwoofers.

Working principle

The Filtered Multiplier 8 is not a regular multiple socket, more a work of art made on a CNC machine that shapes this form out of one piece of synthetic material. Yes… synthetic! The results speak for themselves, optical as well as electrical.

The type of the eight sockets is chosen because of the high contact pressure, which is obvious when putting in or pulling out a power plug. More contact pressure and an optimal contact surface do create a low resistance value which is very important for a good power distribution. 

The wiring from phase, neutral and earth is connected by a star principle. Every output has its own wiring towards the input connector. Peaks in the current or interference signals that appear on the earth contacts of one socket will now have less effect on the other sockets.

Where to use?

Wherever you need to connect multiple loads to the mains, the Filtered Multiplier is a wise choice. Of course you will have to use high performance power cords, else the Filtered Multiplier will not perform at its best. It's a combination of factors, only if you use the Filtered Multiplier in combination with high performance power cords you will have the maximum results for your audio system.

Of course it is possible to use the Filtered Multiplier as an ordinary multiple socket without high performance power cords, but this will not give you optimal results. Our advice is to upgrade to our power cords, the result will be rewarding.

What to expect?

An improvement in dynamics, a much better sound image and a lower hum level. The sound character of your audio system remains, fortunately!

By using the Filtered Multiplier with integrated Pulse Protector your equipment has less trouble with electrical failures induced by distortion on your network, and it is better protected against damage through lightning impact nearby. A guarantee that lightning impacts will not damage your devices can not be given because the energy-content is too high.

Just behind the IEC input connector a Pulse Protector is integrated. This prevents peaks and pulses to reach your equipment. For more information, read about the Pulse Protector elsewhere on this site.