8NDL51

LF Driver
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8NDL51 view 2
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Overview

LF Driver8NDL series
B&C

8NDL51

Size
8"
Impedance
16Ω
RMS Power
400W
Sensitivity
94dB
EBP
137
Vented alignment
Vd
154cm³

Frequency response

Manufacturer-provided response plots and related charts.

3 images
Response graph 1
Response graph 2
Response graph 3

T/S Parameters

Valid
Manufacturer
Fs70Hz
Qts0.47
Qes0.51
Qms5.9
Vas13.4L
Re10.6Ω
Le0.60mH
BL15.2Tm
Sd220cm²
Mms26g
Xmax7.0mm
SPL94dB
Power400W
Power Nominal200W
Impedance16Ω
Min Impedance12.0Ω
F Low70Hz
F High3000Hz
Voice Coil51mm
Flux Density1.05T

Pricing & availability

Price movement

Best current price

Updated 17 May 2026

bluearan
£99.00
Avg £101.66£2.66 below avg (-2.6%)
inc VAT
Buy now

Dimensions & Physical

Weight1.9kg
Diameter225.0mm
Overall Depth90.0mm
Cutout Diameter187.0mm
Bolt Circle Diameter210.0mm

Additional Manufacturer Specs

Bl15.2 Tm
Fs70 Hz
Le0.6 mH
Re10.6 Ω
Sd220 cm² (34.1 in²)
Ebp137 Hz
Mms26 g
Qes0.51
Qms5.88
Qts0.47
Vas13.4 dm³ (0.47 ft³)
η00.9 %
ConeRCK008NDL5116
Xmax7 mm
Xvar7 mm
SpiderSingle
Cone ShapeExponential
Pole DesignStraight Pole
Winding Depth17 mm (0.65 in)
Surround ShapeDouble Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter200 mm (8 in)
Winding MaterialCopper
Magnetic Gap Depth8 mm (0.31 in)
Recommended Tuning65 Hz
Bolt Circle Diameter210 mm (8.3 in)
Recommended Enclosure14 dm³ (0.49 ft³)
Woofer Cone TreatmentTWP Waterproof Both Sides
Baffle Cutout Diameter187 mm (7.4 in)
Flange And Gasket Thickness11 mm (0.4 in)
Air Volume Occupied By Driver1.1 dm³ (0.04 ft³)

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8NDL51
Reference
B&C
8NDL51
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Best current price
£99.00
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Only active params are shown here. Size stays fixed automatically.

5 active T/S params, plus size.

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