@klh007 and @lak , thanks for the heads up on Core Power Technology. They look well made but the ratings are a bit low. Here in the U.K. there is an industrial transformer manufacturer who makes balanced power supplies, cost for example about £300 for 3kVA, £500 for 5kVA. Is there anything special about the CPT transformers that might make them better?
Equi=Tech have a reputation for making really good balanced power, their transformers are made in Canada by an OEM manufacturer. The same manufacturer also supply Westwick here in the U.K., who do a lot of studio installations. They are a bit cheaper than Equi=Tech but still pricey at £5k for 8kVA. Apparently they are better than the cheaper manufacturer I mentioned but then they are ten times the price.
Equi=Tech have a reputation for making really good balanced power, their transformers are made in Canada by an OEM manufacturer. The same manufacturer also supply Westwick here in the U.K., who do a lot of studio installations. They are a bit cheaper than Equi=Tech but still pricey at £5k for 8kVA. Apparently they are better than the cheaper manufacturer I mentioned but then they are ten times the price.