JBL S800 Synthesis 110V to 230V need help

[Loffen]

It looks like I am getting some S800 to power my 2242H's

Since I am a Norwegian guy and we do not have the S800 here I will need to convert them to 230V.

I was told that they where made by Bryston and should be similar to the 4B st but I am really unsure since the does not have any fans and the S800 have.(Please correct me if I am wrong)

So does anybody know the origin or have the internal diagrams or even better know how to convert them if possible ?

[WDJ]

Rear of a US (110VAC) S800 seems to indicate that it would be OK to use a 50 HZ input. So, if you can't modify the unit to take 240VAC directly, you may be OK to just use an external step-down transformer (takes your 240VAC and steps it down to 110VAC, frequency remains the same).

Look like you would need a pretty good size unit to support the 2400w input. A cheaply made transforme may well produce an audible hum, but a high-quality unit will work for this.

Try: http://www.jbl.com/home/product%5Fsupport/

Good Luck!
Wayne

[Loffen]

Thanks Wayne

I do not think that product support would answer... But I will give it a try

And I have been thinking about a step down transformer,but since I will have 4 x S800 so are we talking about almost 10,000. watt

I did find this one,but like you said so am I also worried about hum,have anybody tried it ?

http://cgi.ebay.com/ws/eBayISAPI.dll...m=360087448389

[Loffen]

Bump

I have received the amps and still need some help.

They have been made by ATI and it is only a jumper to move on the supply board to get it to 220 volts.

The transformers are wired in paralell,would it be so simple to just wire them in series ?

And do anyone know the output voltage from the transformers ?

I will take some pictures later today,so you can see what I am talking about.

[Loffen]

I have taken some pictures, but my connection is down so they will be added later.

When I run the transformers in series I get a little bit under 55 volts on the secondary side,can someone check if that is the correct voltage ?

I have not put power to the boards.

[Loffen]

Okey

The first picture is from the control board,the two jumpers have been removed and a new one is placed over 220 volt mark.

the picture in the middle is of the transformer wiring set up for 110 volts,the wires that comes from the right side goes to the transformers and they are set up in paralell.

The last picture,here you can see that the black jumper on the left side has been removed and the bottom brown wire has been set at the top connector,this will set the transformers in series.

Any comments ?

Still no answer from ATI,JBL Synthesis USA and Europe regarding the output voltage, but hopefully it will come