Audio System CO 06 D8 EVO

2x8Ω

Subwoofer

Nominal diameter	6.5″ / 170 mm
Resonance	59.8 Hz
Q factor	0.38
Sensitivity	80.7 dB
Linear excursion	± 7 mm
Program Power	240 W

Audio System CO 06 D8 EVO Subwoofer

Specifications

Sensitivity (1W, 1m, infinite baffle) SPL1W 80.7dB
Frequency response 55 - 200Hz

Thiele & Small parameters

Resonance frequency (free air) fS 59.8Hz
Mechanical quality factor QMS 3.63
Electrical quality factor QES 0.43
Total quality factor QTS 0.38

Large signal parameters

Maximum linear excursion (one way) xmax 7mm
Air volume displaced at xmax VD 90cm³
Power handling P 160W
Program power Pmax 240W

Voice Coil

Nominal impedance Z 2 x 8Ω
DC resistance (in series) RE 12.4Ω
Inductance (1kHz, in series, estimated) LE 2.64mH
VC Diameter 38.6mm
Former material Aluminium

Magnet

Force factor (in series) Bl 9.58N/A
Motor constant Bl/√RE 2.72N/√W
Diameter 120mm

Diaphragm

Effective diameter 128mm
Effective area SD 129cm²
Moving mass MMS 30g
Moving mass (without air load) MMD 28.9g
Material Paper

Suspensions

Stiffness KMS 1.2N/mm
Compliance CMS 836µm/N
Equivalent volume to the compliance VAS 6.56L
Mechanical resistance RMS 3.11N·s/m
Surround material Rubber
Spider material PPTA Connex

Dimensions

Nominal diameter 6.5″
170mm
Overall diameter 170mm
Baffle cutout diameter 142mm
Overall depth 92mm
Flange thickness 10mm
Mounting depth 82mm
Volume occupied by the driver (estimated) 0.75L
Net weight 2.4kg
Frame material Steel

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