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C7-350cm: Specifications and Crossover Setting Guidelines
C7350cm SPECIFICATIONS
Speaker Type: Component Midrange
Nominal Diameter: 3.5 in. (90 mm)
Nominal Impedance (Znom): 4 ohms
Continuous Power Handling: 100W
Recommended Amplifier Power: 50-150W (RMS)
Net Weight: 0.71 lbs. (0.32 kg)
Driver Rear Displacement: 0.0024 cu.ft. (0.068 liters)
Min. Recommended Sealed Enclosure:
0.014 cu.ft. (0.4 liters)
Parameters:
Voice Coil Resistance (Re): 3.245 ohms
Free Air Resonance (Fs): 156.9 Hz
Reference Efficiency (no): 0.270%
Efficiency: 86.5 dB @ 1W/1m | 92.5 dB @ 1W/0.5m
Sensitivity: 89.5 dB @ 2.83V/1m
Electrical “Q” (Qes): 0.590
Mechanical “Q” (Qms): 6.454
Total Speaker “Q” (Qts): 0.541
Equivalent Compliance (Vas): 0.015 cu.ft. (0.430 liters)
Moving Mass (Mms): 4.009 g
Mechanical Compliance (Cms): 0.000257 m/N
Magnetic Strength (BL): 4.66 N/A
Effective Piston Area (Sd): 5.31sq.in. (0.003426 sq. m)
One-Way Linear Excursion (Xmax): 1 mm
Design Bandwidth:
With 48 dB/octave filters: 300 Hz - 10 kHz
With 24 dB/octave filters: 400 Hz - 10 kHz
With 12 dB/octave filters: 500 Hz - 10 kHz
55
60
65
70
75
80
85
90
95
dB SPL
20 kHz10 kHz5 kHz1 kHz 2 kHz100 Hz50 Hz 200 Hz 500 Hz20 Hz
Sum
Tweeter
MidrangeWoofer
C7 3-Way Speaker System
C7-650cw Woofer
Low-Pass: 24 dB/octave Linkwitz-Riley @ 400 Hz
Level Offset: 0 dB
C7-350cm Midrange
High-Pass: 24 dB/octave Linkwitz-Riley @ 480 Hz
Low-Pass: 24 dB/octave Linkwitz-Riley @ 3500 Hz
Level Offset: 0 dB
C7-100ct Tweeter
High-Pass: 24 dB/octave Linkwitz-Riley @ 4500 Hz
Level Offset: -1.0 dB
Please note: These are recommended starting points
for tuning. In-vehicle measurements should be made
to optimize the crossover for speaker placement
and vehicle acoustics.
3
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