You may want to think twice before you go for this one.
1) There are some receivers that will give you 80X5 for $300.
2) Carver has been out of business for years. Sunfire might help on a Carver product but why have to even think about getting parts and service if something goes wrong?
My friend has owned about 5 Carver amps and all of them have had problems. Expect it to go into the service shop atleast Once or Twice during the Warranty period and then you have to hope you can get parts.