Isn’t this exactly how the summing of audio signals is expected to work? When two signals are mixed, the perceived loudness of the combined result can increase or decrease depending on the various characteristics of the source signals.
Here is an example: Deck 1 and Deck 2 play the exact same portion of the same track. Both are set to maximum volume, and no EQ is applied. However, when the crossfader is set to the middle position, there is an increase in the overall volume. This is expected behavior because when the signals are identical, they reinforce each other, which increases the amplitude and, in turn, increases the perceived loudness.
Hi again @illya_kroon, our engineering team was able replicate the GRV6 issue and identify what is going on with Deck 2. They are working on a fix which should be included in an upcoming update (likely djay 5.4). Thanks!
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Hi @SlackJaw, that’s incredible news — thank you and the entire engineering team for looking into this so thoroughly and confirming the issue! 
I really appreciate the transparency and how quickly you’ve acted on it.
I’ll be keeping an eye out for the upcoming djay 5.4 update, and I’m excited to see the fix in action. Thanks again for all the great work — it means a lot to the community!
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You’re welcome @illya_kroon. Happy to help. Thanks for the positive feedback!
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Hi @illya_kroon, our engineering team needs to gain a better understanding of what you are experiencing here exactly.
- Can you please record a video where you load the exact same song on both decks? Does it play at different volumes? Rules: autogain on, no touching any gain knobs after song loading, crossfader in the middle, both channel/line faders up to 100%.
- When you say “Channel 2 is playing noticeably louder than Channel 1, even though the track levels are matched” this is contradictory; “level matched” usually means you tweaked the gain knobs until tracks are at the same volume, so I guess you mean something else. Please clarify what you mean here. Thanks!
