I just noticed your amp is 50 watts into 8 ohms, this would power the speakers suggested to a decent level but if you like to crank it on occasion you should stick to speakers rated with a sensitivity of 89dB or better. The sound isn't for every one but you might want to give a listen to Klipsch which are very efficient, meaning they play loud with not much power input, they typically have a sensitivity of over 95dB. Using horns they have a certain sound, some love them and they have a huge following while others turn their nose, so I'd suggest a listen first.