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SPECIFICATIONS AMC650r AMC680r
Frequency Response (±3dB)
Frequency Range (-6dB)
Recommended Amplifier Power
Nominal Impedance
Sensitivity [1 watt (2.83v) at 1m]
Tweeter
Bass Unit
Grille
Dimensions
Overall Diameter
Mounting Hole Diameter
Weight/each
Finish
65Hz–20kHz
55Hz–22kHz
15–85 watts
8 ohms
88dB SPL
3
⁄4-inch (19mm)
ferrofluid-cooled
titanium dome tweeter
with neodymium
magnet structure
6
1
⁄2-inch (165mm)
woofer with
polypropylene cone
Perforated steel
0.02-inch (0.5mm)
thick, painted white
9" (227mm)
7
3
⁄4" (197mm)
3 lbs (1.4kg)
White (paintable)
60Hz–20kHz
50Hz–22kHz
15–85 watts
8 ohms
89dB SPL
3
⁄4-inch (19mm)
ferrofluid-cooled
titanium dome tweeter
with neodymium
magnet structure
8-inch (203mm)
woofer with
polypropylene cone
Perforated steel
0.02-inch (0.5mm)
thick, painted white
10
3
⁄4" (273mm)
9
1
⁄2 - 9
3
⁄4" (241-248mm)
4.5 lbs (2.0kg)
White (paintable)
copolymer woofer
3/4" ferrofluid cooled tweeter
Waveguide
with 20° tilt
High-order
crossover