# Difference in new and legacy Green 808

**URL:** <https://unity.neuraldsp.com/t/difference-in-new-and-legacy-green-808/9660>\
**Category:** Quad Cortex\
**Tags:** quad-cortex\
**Created:** [January 26, 2023, 2:23am UTC](https://unity.neuraldsp.com/t/difference-in-new-and-legacy-green-808/9660 "2023-01-26T02:23:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![randelph8](https://avatars.discourse-cdn.com/v4/letter/r/a587f6/32.png) [@randelph8](https://unity.neuraldsp.com/u/randelph8)\
**Post date:** [January 26, 2023, 2:23am UTC](https://unity.neuraldsp.com/t/difference-in-new-and-legacy-green-808/9660/1 "2023-01-26T02:23:43Z")

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I can’t really hear the difference? Do you guys?

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**Author:** ![HonestOpinion](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/honestopinion/32/3398_2.png) [@HonestOpinion](https://unity.neuraldsp.com/u/HonestOpinion)\
**Post date:** [January 26, 2023, 5:58am UTC](https://unity.neuraldsp.com/t/difference-in-new-and-legacy-green-808/9660/2 "2023-01-26T05:58:40Z")

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Thanks for posting this. I was wondering if any of the models had been upgraded in the CorOS 2.0 update , and this is one example, assuming there must be others. This relates back to another topic where some users were commenting about the Jewel compressor having been changed in 2.0 but the legacy option on that model is greyed out. If indeed it has changed, perhaps it was an oversight and Neural can include the legacy model in a quickfix.