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| Isolation transformer on studio monitors? |
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| drummerdimitri:
I would like to connect my studio monitors to isolation transformers to prevent any ground loops from occurring as I've heard them buzzing in the past on some occasions. My question is whether or not that could deteriorate their sound quality somehow. I know there will be a lower PF as this is now an inductive load from the the mains but is there any reason I shouldn't do it? |
| dom0:
Intense buzzing in bursts is GSM interference and will never be fixed by isolation transformers. --- Quote ---My question is whether or not that could deteriorate their sound quality somehow. --- End quote --- No, unless the transformers are too small for the monitors. Then it might cause excessive ripple in the monitor's power supply under load. |
| Gyro:
Also compare the cost of audio signal level isolation transformers - but check the frequency response and impedance specs very carefully, otherwise they will degrade sound quality. |
| Audioguru again:
Of course an audio coupling transformer will cut and distort low frequencies, mid frequencies and high frequencies like a 60 years old guitar vacuum tubes amplifier. It also ruins the excellent damping factor of a modern amplifier. |
| David Hess:
A power line isolation transformer used with an amplifier studio monitor will have no effect on the audio quality unless something is drastically broken. But don't your amplified studio monitors have balanced inputs? They should have considerable common mode rejection which makes your problem seem more like an radio frequency interference issue. --- Quote from: Audioguru again on November 14, 2019, 11:35:41 pm ---Of course an audio coupling transformer will cut and distort low frequencies, mid frequencies and high frequencies like a 60 years old guitar vacuum tubes amplifier. It also ruins the excellent damping factor of a modern amplifier. --- End quote --- Those limitations do not apply at small signal levels. Dampening is irrelevant into the high impedance input of an amplified studio monitor and a small signal audio transformer can cover the entire audio band with low distortion and loss although they are $50+ expensive. |
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