These two EQs make up a surgical eq with unsurpassed headroom that will improve or heal dozens of bad issues and can encourage good qualities as well.  This EQ leaves no negative sonic artifacts behind.  I've tracked with it on overheads, vocals and guitars and mixing on the buss. Originally purchased from Mercenary Audio.   Shipping is to lower 48 US only.  Includes a compact power supply that powers both modules easily.  Listed price includes all you see:  two EQs mounted on rack plus power supply (now shown).  You won't find a better improvement to your recordings for less than $1000-.  Shipped via FEDEX.