Yes,
I have an Alpha 9 and CD23. At home, the transformers buzz in both of them. Rarely perceptable except when very close to the players. Occasionally louder due to DC offset in the AC (I have learned that from the threads here).
I checked with Arcam and it is normal. Also, the transformer is powered up if the player is plugged in. They try to keep some of the electronics warmed up. Better instantanious sound quality?
FWIW - I had the transformer in the Alpha 9 replaced with what Arcam described as the "cool running option", out of curiousity as much as anything. It lowered the transformer noise slightly at home, but the hum didn't go away completely.
I have the Alpha 9 at work now and it is dead silent. I mean absolutely nothing. I work in an R&D facility and we evidently have really good/clean AC power. Helps confirm the DC in the lines at home?
Jim S.
I have an Alpha 9 and CD23. At home, the transformers buzz in both of them. Rarely perceptable except when very close to the players. Occasionally louder due to DC offset in the AC (I have learned that from the threads here).
I checked with Arcam and it is normal. Also, the transformer is powered up if the player is plugged in. They try to keep some of the electronics warmed up. Better instantanious sound quality?
FWIW - I had the transformer in the Alpha 9 replaced with what Arcam described as the "cool running option", out of curiousity as much as anything. It lowered the transformer noise slightly at home, but the hum didn't go away completely.
I have the Alpha 9 at work now and it is dead silent. I mean absolutely nothing. I work in an R&D facility and we evidently have really good/clean AC power. Helps confirm the DC in the lines at home?
Jim S.