Ultrasone S-Logic Closed-Back Stereo Headphones: HFI-780 $109, HFI-580 $89 + Free shipping AC

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UltrasoneHFI-580 S-Logic Surround Sound Professional Headphones $89 using coupon SOUNDINOFF1 in cart
UltrasoneHFI-780 S-Logic Surround Sound Professional Headphones $109 using coupon SOUNDINOFF2 in cart
Amazon link for reference – Amazon put a few of the Ultrasone reviews together but within each review by "style" it shows which headphone it’s for.
This is the lowest I remember seeing either of these for.