Question about Logitech R-20 Computer Speakers

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I bought Logitech R20 speakers in the UK - 240V and wish to use in the US -110V. Will the speakers work if conected to the lower voltage. Will the speakers be damaged if connected to 110V supply

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Blown Subwoofer

did you manage to fix this problem ... i am afraid i might have made the same mistake. But I used a 220V-110V adapter that I have been using for the notebook. I dont understand why that doesnt work in the case of the speaker. Is there any way I can make it work again?

Posted on Jul 14, 2007

jackboy
  • 2985 Answers

SOURCE: blown speakers

No fix- buy new ones

Posted on Aug 14, 2007

  • 2 Answers

SOURCE: what is the specific power transformer (internal)

No switch.
There is a transformer inside the bass box which should be able to be changed to a 110v, but its a bit of a pig to get into. There is a lot of glue securing the wires to the shell if you go via the panel, and it sounds like the speaker entry means probable destruction of the grill to get to the speaker mounting screws (4x). Yep, a step up transformer would be the least painful.

Posted on Jul 20, 2010

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Dynaudio BM - Power from 110V to 240V or 240V to 110V


Hi Guys,<br /><br />This is what I have learnt the hardway so wanted to share it with everyone who wants to get his Dynaudio Speakers converted from 240V to 110V or 110V to 240V.<br /><br />I actually requested many forums including Dynaudio Support as I bought mine from US and they were 110V, I wanted to use it in my Country which has 240V standard, What these guys suggested me was to order the whole AMP Modules for the speakers if I want to have them work in my country. In other words it was a solution of $350 per module totals to $700.<br /><br />Shame on them as I opened the speakers myself and found a small jumper wire hooked up on the connections marked 110V and there were other connectors marked with 220V and 240V.<br />All I did was just took out the jumper from 110 and inserted it in 240V connectors!!<br />Thats about it!<br />So guys forget these mean techiz at Dynaudio and use my experiene to solve your problem :-)<br /><br />Cheers<br />Satch<br /><a href="mailto:satchriani2@hotmail.com">satchriani2@hotmail.com</a>

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Check the mains input voltage on the printer. If it is 110v then you need a step down transformer 240v to 110v.

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9 beeps means that the input voltage to the PC's power supply is incorrect, have you changed the switch at the back of the PC from 110 to 240v or vice versa. If the PC was not bought in the UK then it may be set to 110v in which case the voltage selector at the back of the PC needs to be changed to 240v. If there is no voltage selector would recommend changing the power supply.

If by changing the selector to the correct voltage it still beeps 9 times you are looking at a new power supply unit which you can buy from HP at a high cost or buy a used one from:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160617535239


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In your case the unit should be dual voltage, compatible with 220/240V networks. Just ensure checking the user manual, or the tag at the back of TV.
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1 Answer

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the motor runs of a single phase 110v.
there is 220v between the 'outside', the active lines of the two phases, at any time, but it is not useable to provide mechanical power as a single service, due to the complicated shape of the wave form when you add out of phase voltages together, but is ok to drive the heaters, they have no mechanical efficiency requirement
A 2 phase 110v heater it means 3kw can be supplied without a 30 amp circuit
but it becomes difficult to use a single phase 220-240v transformer to provide 2x110v 90degree 2 phase current unless you specially buy one in. .
High power applications in 220-240v are generally supplied by 415v 3 phase 60deg supplies,

Any transformer would be onsellable at the end of your posting, to your replacement, who would doubtless be in the same boat as you, with a heap of 'stuff' that needs to run.

UK Aus NZ may be sources of transformers, or dryers to suit.
check with Australian UK NZ suppliers as well as local Indian ones, as those countries are also nominal 240v single phase home suplies and they may have (1) the dryer, or (2)the transformer to suit the 110 2 phase dryer

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I'm in the UK bought my


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Thank you for purchasing Andis.

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Blown Subwoofer


Hi , you will have to open the box and check for any fuses along the power input line, replace them if any and try it out but i strongly believe what happened there is that you fried the power supply in your subwoofer , there is no easy fix to this , you will need to replace the transformer and possibly check to see if the rectification circuit is damaged too, and the amplifier too. Good luck

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