Like... plenty.What other class D amplifiers do you know?
Apollon, ATI, Audiophonics, VTV, boXem Arthur, Buckeye. What yet?
Marantz
PS Audio
S.M.S.L
Nuprime
Topping
Hattor
Loxjie
T+A
Rouge Audio
NAD
Jeff Rowland
Monoprice
Elipson
Cambridge Audio
Peachtree
Even McIntosh (Multichannel amp)
And so on...