I am looking for a new amp. I have 4 Viper 6X8's(front and rear) and a JL Audio 10w6-ae. The amp that I am replacing is an Audiobahn. Don't know the model, just know its 4 ch and at least 1 channel has gone bad. I am searching for a 5 ch and found many out there! I have heard that Soundstream is...