Marantz voltage change.

[Jay23]

Hello,
I have two Marantz components

AV8801
MM7055

Both are labelled as 110V and work perfectly on 110V outlets.
I now need to run these on 230V as I only have access to 230V outlets. Does anybody have any tips on sourcing a 230V power board for both of these components?
I'm OK at replacing caps, and other components if that's what's needed.
Thanks,
J

 

[everettT]

Hello,
I have two Marantz components

AV8801
MM7055

Both are labelled as 110V and work perfectly on 110V outlets.
I now need to run these on 230V as I only have access to 230V outlets. Does anybody have any tips on sourcing a 230V power board for both of these components?
I'm OK at replacing caps, and other components if that's what's needed.
Thanks,
J

@TLS Guy may have an idea

 

[TLS Guy]

Hello,
I have two Marantz components

AV8801
MM7055

Both are labelled as 110V and work perfectly on 110V outlets.
I now need to run these on 230V as I only have access to 230V outlets. Does anybody have any tips on sourcing a 230V power board for both of these components?
I'm OK at replacing caps, and other components if that's what's needed.
Thanks,
J

The bigger issue, is where in the world are you now? Often there is more to deal with than voltage, especially phasing and cycles. Some jurisdictions have no neutral and some like the US do. These issues are often quite complicated and not even easily solvable at least at a cost that would be more than replacing the equipment.

 

[Jay23]

Thanks for the responses. These are USA spec units that are now in France.

 

[everettT]

Thanks for the responses. These are USA spec units that are now in France.

May have to buy new or used due to all the potential work. Pascal is France and make some.nice amps. You can inquire locally how much it costs to replace the linear power supply with a SMPS (switch mode power supply), that way you would know costs.

 

[PENG]

Thanks for the responses. These are USA spec units that are now in France.

If the equipment is already in France, a quick and easy solution would be to source one from McMaster Carr:

Just make sure you find the right one and one that meets the EU safety standards.

International Transformer, 1000 VA | McMaster-Carr

 

[TLS Guy]

Thanks for the responses. These are USA spec units that are now in France.

In that case what you need is a transformer to lower the voltage from 230 to 110 or 120 volts. You need to make sure it supplies enough power for those units. I would make sure you leave 20% overage at least for turn on etc. You might want to check with Marantz that the equipment is OK with 50 Hz supply, rather than 60 Hz. I doubt that will be an issue, but check anyway.

 

[Jay23]

Thanks for the replies so far. I'd really like to avoid the use of step down (up?) transformers, I find they're an inelegant solution. I know some electronics shipped to different voltage regions are identical, aside from the power board. Where a switching power supply is not included (as seems to be the case with the components I own), I was hoping to convert the unit itself so that it was indistinguishable from the version that would have been released in this region. I do have a question out to Marantz too, but not overly hopeful of a constructive reply....

 

[highfigh]

Thanks for the replies so far. I'd really like to avoid the use of step down (up?) transformers, I find they're an inelegant solution. I know some electronics shipped to different voltage regions are identical, aside from the power board. Where a switching power supply is not included (as seems to be the case with the components I own), I was hoping to convert the unit itself so that it was indistinguishable from the version that would have been released in this region. I do have a question out to Marantz too, but not overly hopeful of a constructive reply....

Inelegant? It's the best way to change the voltage- the same way they would make this model usable in a country where 230VAC is used- anything after the power transformer can remain the same, although you may be going to a place where 50Hz is used vs 60Hz.

 

[TLS Guy]

Thanks for the replies so far. I'd really like to avoid the use of step down (up?) transformers, I find they're an inelegant solution. I know some electronics shipped to different voltage regions are identical, aside from the power board. Where a switching power supply is not included (as seems to be the case with the components I own), I was hoping to convert the unit itself so that it was indistinguishable from the version that would have been released in this region. I do have a question out to Marantz too, but not overly hopeful of a constructive reply....

You are wrong. The whole power transformers have to be replaced, and they are seldom the same size, so it can't be done. You have to use an external transformer whether you like the like of it or not. Your big mistake was moving the gear to Europe. We would have told you to sell it and buy new, which is the beat approach. Groundings and neutrals are different in Europe, and when you try what you are doing, you often get an incurable hum.

The other issue you will have is that you will not be able to use the FM radio section.

DAB is widespread in Europe which we don't have that in the US. Your receiver is not equipped for DAB. For analog stations the European EQ is 50 microseconds, and in the US 75 microseconds. So even if you find an analog station it won't sound anywhere near correct.

The power consumption of your two units is 800 watts. So you need at least a 1000 watt transformer. However even that is marginal for turn on and peaks etc, but certainly no less than 1000 watts, and a 1200 watts would be better, for better margin.

Basically, this can't be sugar coated. You made a bad decision taking that gear to Europe.

 

[Jay23]

Oh well. Can't be helped.

 

[carlosadar]

Hello,
I have two Marantz components

AV8801
MM7055

Both are labelled as 110V and work perfectly on 110V outlets.
I now need to run these on 230V as I only have access to 230V outlets. Does anybody have any tips on sourcing a 230V power board for both of these components?
I'm OK at replacing caps, and other components if that's what's needed.
Thanks,
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Hello. I have a Marantz PM6005 bought in the UK, which I am currently using in Japan with a step up transformer. This is creating some noise interference though, and I'm wondering whether it's possible to switch/convert the amp to local 100v power. Anyone know?

 

[TLS Guy]

Hello. I have a Marantz PM6005 bought in the UK, which I am currently using in Japan with a step up transformer. This is creating some noise interference though, and I'm wondering whether it's possible to switch/convert the amp to local 100v power. Anyone know?

You would have to change the power transformer and may be more adaptions, which are not worth it. Japan's electrical supply is archaic. It has a neutral not bonded to ground, and that may be a significant part of your hum issue.

Your best and cheapest solution is to replace your equipment for gear that is designed and built to be used in Japan.

The UK has the best and safest power infrastructure in the world.