Spectral Voltage conversion

[Elberoth]

Yes, but it implies that in 110V it would be using only half of the primary - some people consider it a poor practice.

Then Accuphase must be a shitty gear Most (all ?) Accuphase compononts have separate primaries not only for 115 / 230V, but also for 100V. So at each given voltage, 2/3 of the primaries sits unused. And they are not the only manufacturer using this technique.

 

[microstrip]

Then Accuphase must be a shitty gear Most (all ?) Accuphase compononts have separate primaries not only for 115 / 230V, but also for 100V. So at each given voltage, 2/3 of the primaries sits unused. And they are not the only manufacturer using this technique.

Surely not, although I have very little experience with Accuphase. But they must have their reasons to prefer separate windings to tapped windings. Anyway it was why I said "some people". I think that some manufacturers will prefer it on the basis of convenience. Surely dedicated transformers for each voltage and mains frequency must be the best of the best, unless we are considering switching power supplies!

 

[Elberoth]

Definately. But it gets very expensive - basicly, you have to keep 3x the stock of every component (unless you make everything to order only).

 

[cuprone1]

As I would buy a 30 ss series II from Usa, it is very kind of you ( if possible) to find a definitive solution to this question: easy rewirings ot not?
Thanks in advance.
Piero

 

[arteck]

Also I will appreciate it very much if someone can let me know that how the voltage can be converted from 110V to 230V. Thanks

 

[alecm]

Hi Elberoth and all,
thank you for pointing out regarding voltage conversion.
I bought 15SS 110V recently and need to change it on 220V.
Could anyone help with appropriate photo of jumper set J11 for 230V?

Please see the photo 15ss for 110V

http://imgur.com/GlzYUev

 

[geppo]

Just noticed that nobody mentioned the AC mains fuse...

 

[alecm]

Mine has 500mA fuse.
So theoretically for 230V version is 250mA

 

[alecm]

.... Terry Menacker and others have clearly stated Spectral uses custom power supplies and transformers for the target voltage.

15SS has couple of non-custom transformers - PACIFIC TRANSFORMERS PTT-02-30-40. It combines 230V and 115V inputs in one.
The details are here http://pactran.com/assets/catalog.pdf, page 14
So Terry's words looks like blowing a smoke...

 

[geppo]

The issue with the input fuse is not the current rating but the safety certification of the product. One thing is to make the preamp work with the other mains voltage, another thing is to maintain its safety certification valid in a different market than the intended one. Some component may be different depending on the geographical area of destination. The market value of a non-certifiable product is zero. In other words, it cannot be legally sold, either new or used. Safety related components are listed in the product test report done by a Competent Body. Anything different, although functionally equivalent, just doesn't "work".

Just my 2 cents

 

[Elberoth]

Hi Elberoth and all,
thank you for pointing out regarding voltage conversion.
I bought 15SS 110V recently and need to change it on 220V.
Could anyone help with appropriate photo of jumper set J11 for 230V?

Please see the photo 15ss for 110V

http://imgur.com/GlzYUev

Here is how the jumpers were set in the SS15 I had at home (original european 240V version):

Hope this helps.

 

[alecm]

Elberoth,
many thanks !!! I'll back with results..

 

[Elberoth]

No but I have images of the SS30 internals. As you can see, input voltage is beeing switched by this red jumper wire. Just ask someone who owns SS30 in the US to check what is the 115V US setting. On 220V models, it connects pins 1 and 3.

View attachment 13917

I have just noted that I gave the wrong piece of info in my previous post. The jumper on the 220V SS30 connects pins 1 and 4, not 1 and 3 as I stated in my post.

Here is a different angle which better shows that:

I had also another SS30, this time mk 2, which was set to 240V, where the jumper connects pins 1 and 5:

So it seems the correct pin settings are:

120V: pin 1 and 3
220V: pin 1 and 4
240V: pin 1 and 5

Pin 1 and 2 may be for 100V, but someone from Japan would need to confirm this.

USE AT YOUR OWN RISK !!!

 

[ack]

15SS has couple of non-custom transformers - PACIFIC TRANSFORMERS PTT-02-30-40. It combines 230V and 115V inputs in one.
The details are here http://pactran.com/assets/catalog.pdf, page 14
So Terry's words looks like blowing a smoke...

Quite possible, so try Adam's pin reading and see if it works for you, and hopefully he's right and you won't blow up anything.

 

[alecm]

Hope this helps.

It helps and works perfectly on 220V!!! Thank you, I owe you a beer!

 

[ack]

Great! I'd like to know what Spectral, Terry and other dealers have to say about this...

 

[SKATTERBRANE]

Here are the jumpers in my DMC-15. They are set at the factory for 115V. Someone was asking me how to change it to 220V. I do not know what combination would achieve this. But I guess a technician with the right test equipment could do it handily.

 

[SKATTERBRANE]

I see Elberoth posted the solution. THANK YOU!!

 

[Hiempie]

WOW this is very interesting. This would open a new world for Spectral lovers in Europe.
Buy amps in USA send it to Europe and just put the internal wiring to another jumper. Sounds very easy and would spare me a lot of euro’s
Are these jumpers also inside DMC30SV because that will be my next preamp. How about DMA 300RS or 400RS?


Picture off my DMC30SS2

 

[roundhead]

Does this work for their CD players?