I am a broke a$$ teacher

, but i would like to build a system that will sound decent at hi volume.
this is what i had in mind:
Pioneer premier DEH-P770MP In-Dash CD/MP3/WMA/WAV Receiver
Pioneer premier TS-A631P 6-1/2" 3-Way Speaker
Pioneer TSW126DVC Premier 12" Component Subwoofers
Pioneer GMD7150M Premier Mono Power Amplifier with 800 Watts
I am a broke a$$ teacher :teach , but i would like to build a system that will sound decent at hi volume.
this is what i had in mind: :banghead
Pioneer premier DEH-P770MP In-Dash CD/MP3/WMA/WAV Receiver
Pioneer premier TS-A631P 6-1/2" 3-Way Speaker
Pioneer TSW126DVC Premier 12" Component Subwoofers
Pioneer GMD7150M Premier Mono Power Amplifier with 800 Watts