Joseph Sayhoun is the owner and not only do they build amazing amplifiers, Joseph himself sent me a video of him actually making mine (I have the 5 channel). They have different variations of the 7 channel but this one particular is just slightly above your top end at 4.2K. However if you reach out to them directly they will throw you a coupon😉!
My system does double duty for 2 and 5 channel music and HT and these amps are every bit as musical as they are as powerful for HT! He also ships these units in wooden crates. No expense is spared with Joseph!