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Came across a local Cl ad selling a Denon PMA 1500 AE integrated amplifier. The ad shows a picture of the back of the unit where shows the unit is made in Japan and has a label indicating voltage requirements of "AC 100V 250W 50/60Hz". Can this unit be safely used in the United States?
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No, it can not be safely used without a step down transformer. The step down transformer will input 120V and output 100V. Another option is a variac, but this has the possibility of catastrophic failure of the unit if someone twists the knob to a higher voltage.
One further possibility is that the Denon power transformer has taps for 100V and 120V. You will need to pop the top and look at the transformer to see if this is possible.
I would be anxious to learn if the previous owner had used the unit on 120V before purchasing and if not how he managed the voltage conversion.
What kind of plug does it have on it?
If it's a normal US two prong plug than I'm assuming some one was using it.
The US,Mexico,Canada and Japan use the same two and three prong AC plugs. Assuming that since the plug is the same you can plug it in here? No way. As Paulistrus said a Step down or a Variac rated for enough current plus some head room is needed.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
Does it look like this 100v-250v and about what year is it.
A lot of appliances made after a certain date were made to accept any voltage in that range.
Found this out the hard way. There are international voltage adaptors and converters.
Which one you use depends on whether the appliance has 110v-220v verses just 110v stamped on it. the 110-250 means it can take either so all you need is an adaptor, or plug adaptor.
Thanks for the reply. It only indicates "100V", not "100V-250V" so sounds like I am out of luck.
https://www.amazon.com/VCT-VT-500J-Japanese-Transformer-Converts/dp/B000PC4JL4
See if you can find a service manual for it. The power tranny may have multiple taps that might allow you to hook it up for 120V use.
Thanks for your reply and I could not find a service manual online. I was hoping other asylum members would have a source of a service manual for this particular unit.
You can obtain a buck/boost transformer to 'buck' your 120 line voltage to
100 volt easily. The transformer needs to be sized to the integrated amp.
The transformer will be the size of a large brick.
Wiring instructions come with the unit. Or, hire an electrician.
Easy as pie.
The question is, did the previous owner run the unit on 120 volt, or a step-down transformer.
If you want to go the route of a step-down transformer, email me.....I have one.
Thanks for the reply and I have read where a step down transformer(?) could be used however one of my concerns is exactly as you have stated as to how the previous owner ran the unit. The CL ad also lists a "Monster HTS 2600" however I do not think this has the ability to reduce the voltage from 120V to the necessary 100V.
The 100 volts in Japan.. To use in the USA would be nominal at least 115 volts or could be up to 122 volts.
t really is not safe to use in USA without a votage adapter. And most of those would be way to low an amperage to run the amp. Best to pass on it..
Edits: 08/23/16
Thanks for your reply and you have confirmed what info I could find regarding using electrical equipment built for Japan market in the US.
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