What about these?
VF65PM -
6.5" Components
Designed by USA Engineers, Manufactured in China
Specifications-
Woofer- 6.5"
Tweeter- 1"
Impedance- 4
RMS- 60w(120w per pair/kit)
Amplifier Power- 200w(400w per pair/kit)
FR- 47Hz - 23KHz
Sensitivity- 89.3dB
Mounting Depth- 2.362"
Cutout Diameter- 5.630"
Fs- 57.7965Hz
Vas- 18.1217 L
Re- 3.5 Ω
QMS- 3.6436
QES- 0.5836
QTS- 0.503
BL- 4.8081 Tm
dBSPL- 89.8007
Sd- 0.0135 m²
Cms- 0.7144 mm/N
Mms- 10.6145 g
Rms- 1.0579 ΩM
Cas- 1.30 E-0007 m⁵/N
Mas- 58.43 kg/m⁴
Ras- 5824 ΩA
Cmes- 459.151 µF
Lces- 16.5151 mH
Res- 21.852 Ω
RAT- 42183 ΩA
Rmt- 7.663 ΩM
Mmd- 9.7289 g
Zmin- 4.1612 Ω
Zmax- 25.352 Ω
Zavg- 8.6999 Ω
Ƞ0- 0.5755%
L1khz- 0.3207 mH
L10khz- 0.186 mH
These are in your budget.
If you want some really stout, dampened drivers, that will also excel in some serious output at the same time, you should look into these-
PW165AM -
6.5" Components
Designed by USA Engineers, Manufactured in China
Specifications-
Woofer- 6.5"
Tweeter- 1"
Impedance- 4
RMS- 70w(140w per pair/kit)
Amplifier Power- 250w(500w per pair/kit)
FR- 45Hz - 25KHz
Sensitivity- 88.0dB
Mounting Depth- 2.598"
Cutout Diameter- 5.670"
Fs- 54.8292Hz
Vas- 19.5445 L
Re- 3.5 Ω
QMS- 2.5177
QES- 0.5317
QTS- 0.439
BL- 5.2889 Tm
dBSPL- 89.847
Sd- 0.0143 m²
Cms- 0.6831 mm/N
Mms- 12.334 g
Rms- 1.6877 ΩM
Cas- 1.40 E-0007 m⁵/N
Mas- 60.2 kg/m⁴
Ras- 8237 ΩA
Cmes- 440.9336 µF
Lces- 19.1092 mH
Res- 16.5745 Ω
RAT- 47245 ΩA
Rmt- 9.6798 ΩM
Mmd- 11.3647 g
Zmin- 4.1694 Ω
Zmax- 20.0745 Ω
Zavg- 8.1553 Ω
Ƞ0- 0.5817%
L1khz- 0.3211 mH
L10khz- 0.1274 mH
Any questions, let me know.
There is actually a line above the previous one that is even MORE dampened but cost close to $400 for that series.