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Post by Boomzilla on Mar 30, 2018 15:55:36 GMT -5
Title is self explanatory. I've been using a digital volume control on my Oppo directly to a power amp at about 50% volume setting. But I recently installed a (far) more powerful amp and now have to run the digital volume control at a far lower setting (less than 20%). Now the sound sucks. I don't think that it's the amp - I think it's the digital volume control. I can easily test this by turning the Oppo's volume up and then putting a preamp between the output and the power amp. But better to know - at what point does a digital volume control strongly begin affecting the sound quality?
Thanks - Boom
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Post by monkumonku on Mar 30, 2018 17:26:06 GMT -5
Title is self explanatory. I've been using a digital volume control on my Oppo directly to a power amp at about 50% volume setting. But I recently installed a (far) more powerful amp and now have to run the digital volume control at a far lower setting (less than 20%). Now the sound sucks. I don't think that it's the amp - I think it's the digital volume control. I can easily test this by turning the Oppo's volume up and then putting a preamp between the output and the power amp. But better to know - at what point does a digital volume control strongly begin affecting the sound quality? Thanks - Boom Wouldn't it be the gain of the amp rather than the power of the amp that determines how loud it is at any particular volume control setting? In answer to your question there probably isn't any standard answer. I would think you'd have to answer it by listening to it. |
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Post by garbulky on Mar 30, 2018 18:11:27 GMT -5
Its the Oppos ability to drive emotiva right not the digital volume control. Also it depends on what type of digital volume control. Its the gain of the amp that determines the level not the power. Emotiva amps are 29 db gain which is about standard. If you are noticing it runs much louder than other emotiva amps or your other amps, there is likely an issue with your amp which I would get looked at.My emotiva amps didnt have noticeably louder volumes than other amps Ive tried which may point to a problem with yours.
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Post by audiobill on Mar 30, 2018 18:37:47 GMT -5
Boom, lots of discussion about the effects of digital attenuation by the experts over at PS Audio.
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Post by Boomzilla on Mar 30, 2018 21:41:44 GMT -5
The results pretty much speak for themselves - when the issue is audible, it's time to use an analog attenuator. One (or two) good preamps coming up!
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Post by monkumonku on Mar 30, 2018 22:25:18 GMT -5
The results pretty much speak for themselves - when the issue is audible, it's time to use an analog attenuator. One (or two) good preamps coming up! What happened to the Saga you just bought? |
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Post by Boomzilla on Mar 31, 2018 0:52:45 GMT -5
What happened to the Saga you just bought? Still have it - will hook it up when i get a chance. |
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Post by Gary Cook on Mar 31, 2018 18:08:40 GMT -5
Tricky question to answer, with the Airmotive 4's I usually run them at around 50% on their analogue volume control. I then use the resistor ladder in the Ego to control the listening volume. If I turn the 4's up to say 80% volume and then use the digital volume on iTunes to match my normal listening levels then I can notice a slight sound quality deterioration. That's around 70% on digital volume control. It's pretty subtle and obviously near field listening.
Cheers
Gary
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