Upgrade from Dreadnaught 11 for two channel


I am looking to go with a Two channel amp for stereo and replace my 7.1 dread II. I will use a smaller 5.1 for my HT, and that would would complete my 7.1. I am looking at the Mcintosh 406 and or the Pass Labs 250.5 amp. How do these two amps compare to each other as far as sound , bass , imaging most important warmth, and detail. Should I look into the Theta Enterpise Mono amps? . I use The tyler Linbrooks one piece speaker. Thanks for all your input Joe
jhjf123456
Sorry about typo McIntosh 402. Thanks Joe
What speaker do you have? Have you tried to bi-amp with your Dreadnaught? On some speakers, bi-amp will sound better for less money.