Soundood's comments are to the point. I'd add that Dreadnaught amp was rated by Richard Haresty (see his quarterly "Audiophile Perfectionist" publication) as one of two best amps on the market for surround sound systems. Interestingly, Hardesty commented that he somewhat preferred the audio qualities of the Dread 1 to the newer Dread 2.
Having said that, as an owner of the Bryston 4B-ST and 5B-ST amps (the 4B-ST for main speakers, and the 5B-ST for center channel and surrounds), I have been very pleased by their performance. The Dreadnaught is a better amp than the 4B-ST / 5B-ST amp combo, but if you are on a tight budget, the Bryston amps offer excellent performance that I'm confident will please you. Last, Theta builds excellent equipment, but no one matches Bryston's unconditional, transferrable 20-year warranty (which is supported by arguably the best service in the industry).
Having said that, as an owner of the Bryston 4B-ST and 5B-ST amps (the 4B-ST for main speakers, and the 5B-ST for center channel and surrounds), I have been very pleased by their performance. The Dreadnaught is a better amp than the 4B-ST / 5B-ST amp combo, but if you are on a tight budget, the Bryston amps offer excellent performance that I'm confident will please you. Last, Theta builds excellent equipment, but no one matches Bryston's unconditional, transferrable 20-year warranty (which is supported by arguably the best service in the industry).