Nominal diameter | 8″ / 200 mm |
Resonance | 75 Hz |
Q factor | 0.57 |
Sensitivity | 90.6 dB |
Linear excursion | ± 7 mm |
Program Power | 400 W |
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
- Sensitivity (1W, 1m, infinite baffle) SPL1W 90.6dB
- Frequency response 75 - 3000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 75Hz
- Mechanical quality factor QMS 5.22
- Electrical quality factor QES 0.64
- Total quality factor QTS 0.57
Large signal parameters
- Maximum linear excursion xmax 7mm
- Air volume displaced at xmax VD 154cm³
- Power handling P 200W
- Program power Pmax 400W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 2.6Ω
- Inductance (1kHz) LE 0.15mH
- VC Diameter 51mm
- Winding height HVC 16mm
- Winding material Copper
- Former material Glass Fibre
Magnet
- Flux density B 1.05T
- Force factor Bl 7.3N/A
- Motor constant Bl/√RE 4.53N/√W
- Air gap height HAG 8mm
- Material Neodymium Inside Slug
Diaphragm
- Effective diameter 167mm
- Effective area SD 220cm²
- Moving mass MMS 27g
- Moving mass (without air load) MMD 24.5g
- Material Waterproof Both Sides
Suspensions
- Stiffness KMS 6.17N/mm
- Compliance CMS 162µm/N
- Equivalent volume to the compliance VAS 10.1L
- Mechanical resistance RMS 2.44N·s/m
Dimensions
- Nominal diameter 8″
- 200mm
- Overall diameter 225mm
- Baffle cutout diameter 187mm
- Overall depth 90mm
- Flange thickness 11mm
- Mounting depth 79mm
- Volume occupied by the driver 1.1L
- Net weight 1.85kg
Similar woofers to B&C Speaker 8NDL51
B&C Speaker 8NDL5116 Ω |
---|
8″ Woofer |
fS | 70 Hz |
SD | 220 cm² |
70 - 3000 Hz |
QTS | 0.47 |
xmax | 7 mm |
SPL1W | 91.3 dB |
Bl/√RE | 4.67 |
Pmax | 400 W |
PHL audio 20018 Ω |
---|
8″ Mid Bass |
fS | 77 Hz |
SD | 219 cm² |
60 - 4000 Hz |
QTS | 0.53 |
xmax | 5.5 mm |
SPL1W | 91.6 dB |
Bl/√RE | 4.09 |
Pmax | 240 W |
PHL audio 2001NdU8 Ω |
---|
8″ Mid Bass |
fS | 77 Hz |
SD | 219 cm² |
60 - 4000 Hz |
QTS | 0.53 |
xmax | 5.5 mm |
SPL1W | 91.6 dB |
Bl/√RE | 4.09 |
Pmax | 240 W |