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Old 14th November 2018, 02:40 AM   #2091
timon59 is offline timon59  Canada
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Location: Fraser valley BC Canada
Hi all,
If this is the place to ask an Acoustat question then I have one.
I recently bought a set of 2+2's with 220 volt interfaces. I would like to know if the transformers can be re wired for 120v or is an external transformer required?
Thank you.
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Old 14th November 2018, 10:10 PM   #2092
AcoustatAnswerMan is offline AcoustatAnswerMan  United States
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Quote:
Originally Posted by timon59 View Post
Hi all,
If this is the place to ask an Acoustat question then I have one.
I recently bought a set of 2+2's with 220 volt interfaces. I would like to know if the transformers can be re wired for 120v or is an external transformer required?
Thank you.

Acoustat used bias transformers designed for only one voltage: 100, 117 and 220/240 volts AC. Therefore, your transformer cannot be rewired for a different voltage. The part number for the 117V version is TTA117, but it's highly unlikely you'll find a pair today. So, it's likely your only option is to use an external 120-to-220 volt step-up transformer. The good news is that you can power both speakers from one step-up transformer. Power requirements are very low, only about 5-10 watts per speaker. They should be left energized at all times.
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