Can someone till me something about these speaker? I was thinking on using these as rear fill with my system. (Plan on install first week of 2005.)

2004 Nissan Sentra SE-R
Pioneer DEH-P860MP
Pioneer XM Tuner
MB Quarts PCE 216 fornt stage
JL Audio 12w6v2 sub
Diamond Audio D5 600.2 (for front stage)
Diamond Audio D5 600.1 (For the sub)
Diamond Audio D5 300.2 (for the rear fill)
1.5 Farad Cap.
Viper 791 alarm
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2004 Nissan Sentra SE-R
Pioneer DEH-P860MP
Pioneer XM
Garmin Street Pilot III GPS
Rosen DVD Player
(2)Nesa Monitors
MB Quarts PCE 216
MB Quart QM 160 TC
JL Audio 12w6v2 sub
Diamond Audio D5 600.2
Diamond Audio D5 600.1
Diamond Audio D5 300.2
1.5 Farad Cap.
Viper 791XV alarm