Hate to sound boring, but one of the most proven amps with Omegas is any vintage of the Decware SE84. The current SE84UFO at a grand is a killer deal, and contrary to popular belief among those who have never heard one, it has plenty of power to drive any current Omega. It won't go to party volumes, but for me it will go louder than is comfortable. The low level dynamics of this amp are so good, you won't be crying for more volume anyway.