This has balanced connections it's about the cheapest EQ that might work for you.
https://www.sweetwater.com/store/detail/FBQ1502HD--behringer-ultragraph-pro-fbq1502hd-15-band-stereo...
https://www.sweetwater.com/store/detail/FBQ1502HD--behringer-ultragraph-pro-fbq1502hd-15-band-stereo...