8-inch LF driver · 300 W
Eighteen Sound 8NW650 16Ω
55–6300 Hz
£138.53
SteadyLean Audio · 2 in stock · All 4 offers
- Fs
- 62Hz
- Xmax
- 5.5mm
- SPL
- 94dB
- Pe
- 300W
- BL
- 19.1T·m
- Vd
- 127cm³
- Qts
- 0.25
- Vas
- 19L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 2 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v2
frequency response
Frequency response
173 plotted pointsSource file SHA-256 2634adc5d23b…Medium confidence2,686 selected pixels of 2,686 - Trace datasheet-response-trace-poc/v2
impedance
Impedance response
240 plotted pointsSource file SHA-256 2634adc5d23b…Medium confidence1,398 selected pixels of 1,806
Published graphs
Eighteen Sound 8NW650 is an 8-inch 16 ohm LF driver rated at 300 W RMS. The validated T/S data includes Fs 62 Hz, Qts 0.25, Vas 19.0 L, Xmax 5.5 mm, sensitivity 94.4 dB, plus 127 cm³ Vd and 238 EBP. bits tracks UK, EU and US shop prices, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £138.53.
The published T/S values agree with each other
Thiele/Small
- Fs
- 62Hz
- Qts
- 0.25
- Qes
- 0.26
- Qms
- 4.1
- Vas
- 19.0L
- Re
- 9.9Ω
- Le
- 1.14mH
Motor and cone
- BL
- 19.1T·m
- Sd
- 230cm²
- Mms
- 25g
- Xmax
- 5.5mm
- Vd †
- 127cm³
Power and response
- Sensitivity †
- 94.4dB
- Manufacturer sensitivity
- 95dB
- Power
- 300W
- Nominal power
- 300W
- Impedance
- 16Ω
- Range
- 55–6300Hz
- EBP †
- 238 · Leans vented
Size and mounting
- Diameter
- 210mm
- Cutout
- 185mm
- Bolt circle
- 195mm
- Depth
- 111mm
- Weight
- 2.4kg
Other published values
- Power Program
- 600
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 8″
- BL
- 19.1T·m
- Fs
- 62Hz
- Le
- 1.14mH
- Re
- 9.9Ω
- Sd
- 230cm²
- Mms
- 25g
- Qes
- 0.26
- Qms
- 4.1
- Qts
- 0.25
- SPL
- 94.4dB
- Vas
- 19.0L
- Xmax
- 5.5mm
- Power
- 300W
- Impedance
- 16Ω
- Sensitivity
- 95dB
- Low limit
- 55Hz
- Nominal power
- 300W
- Power Program
- 600
- Calculated sensitivity †
- 94.4dB
- High limit
- 6300Hz
- Manufacturer sensitivity
- 95dB
- Weight
- 2.4kg
- Diameter
- 210mm
- Depth
- 111mm
- Cutout
- 185mm
- Bolt circle
- 195mm
02
Designs
Cabinets for the 8NW650: a design and a suggested box from Eighteen Sound.
All 8NW650 designsHow we find designsEighteen Sound’s design
From the maker, with plans to download
Eighteen Sound’s suggested box
From Eighteen Sound’s 8NW650 page
- Net volume
- 20L
- Tuning
- 75Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 8NW650. Clear differences are green when better and red when worse.
This driver8NW650
Best price
£138.53
Fs
62 Hz
Qts
0.25
Vas
19.0 L
BL
19.1 T·m
Xmax
5.5 mm
Sensitivity
94.4 dB
Power
300 W
REDCATT8FIND
£57.67 · 58% less, betterFs70 Hz +13%, worse
Qts0.25 –
Vas18.2 L −4%
BL14.3 T·m −25%, worse
Xmax2.2 mm −60%, worse
Sensitivity96 dB +1.6
Beyma8WRS300
£75.27 · 46% less, betterFs65 Hz +5%
Qts0.28 +12%, worse
Vas15 L −21%, better
BL15.2 T·m −20%, worse
Xmax6 mm +9%
Sensitivity93.4 dB −1
Beyma8WR300
£89.89 · 35% less, betterFs65 Hz +5%
Qts0.27 +8%
Vas15 L −21%, better
BL15.5 T·m −19%, worse
Xmax6 mm +9%
Sensitivity93.6 dB −0.8
B&C8FW51
£116.87 · 16% less, betterFs74 Hz +19%, worse
Qts0.21 −16%, better
Vas12 L −37%, better
BL17.7 T·m −7%
Xmax6 mm +9%
Sensitivity95.7 dB +1.3
B&C8NDL64
£124.99 · 10% less, betterFs73 Hz +18%, worse
Qts0.24 −4%
Vas11.8 L −38%, better
BL24 T·m +26%, better
Xmax4.5 mm −18%, worse
Sensitivity94.7 dB –
B&C8MDN51
£136.23 · 2% lessFs68 Hz +10%
Qts0.27 +8%
Vas17.5 L −8%
BL17.8 T·m −7%
Xmax6 mm +9%
Sensitivity94.8 dB –
Eighteen Sound8NTLW2000
£137.07 · 1% lessFs74 Hz +19%, worse
Qts0.26 +4%
Vas11.3 L −40%, better
BL22.4 T·m +17%, better
Xmax4.4 mm −20%, worse
Sensitivity94.3 dB –
LavoceWAN082.02
£146.76 · 6% more, worseFs80 Hz +29%, worse
Qts0.23 −8%
Vas9.0 L −53%, better
BL17.8 T·m −7%
Xmax5.8 mm +5%
Sensitivity94.7 dB –
RCFMB8N251
£148.77 · 7% more, worseFs68 Hz +10%
Qts0.25 –
Vas13 L −32%, better
BL15.2 T·m −20%, worse
Xmax5 mm −9%
Sensitivity94 dB –
WavecorWF182BD13
£157.24 · 14% more, worseFs38 Hz −39%, better
Qts0.26 +4%
Vas20.8 L +10%
BL6.9 T·m −64%, worse
Xmax5.5 mm –
Sensitivity88.3 dB −6.1, worse
Sica8 K 3 PL
£157.96 · 14% more, worseFs68 Hz +10%
Qts0.25 –
Vas12.2 L −36%, better
BL16.1 T·m −16%, worse
Xmax5 mm −9%
Sensitivity93.6 dB −0.8
Beyma8MC300ND
£175.52 · 27% more, worseFs62 Hz –
Qts0.22 −12%, better
Vas18 L −5%
BL16 T·m −16%, worse
Xmax6 mm +9%
Sensitivity94.6 dB –
WavecorWF211PA02
£184.81 · 33% more, worseFs59 Hz −5%
Qts0.25 –
Vas18.2 L −4%
BL13.4 T·m −30%, worse
Xmax2 mm −64%, worse
Sensitivity93.6 dB −0.8
WavecorWF182BD03
£190.31 · 37% more, worseFs39 Hz −37%, better
Qts0.29 +16%, worse
Vas24.4 L +28%, worse
BL6.8 T·m −65%, worse
Xmax5.5 mm –
Sensitivity88.9 dB −5.5, worse
B&C8CXN51
£223.99 · 62% more, worseFs68 Hz +10%
Qts0.27 +8%
Vas17 L −10%, better
BL12.6 T·m −34%, worse
Xmax6 mm +9%
Sensitivity94.7 dB –
FaitalPRO8HX230
£233.18 · 68% more, worseFs70 Hz +13%, worse
Qts0.29 +16%, worse
Vas14.7 L −23%, better
BL15 T·m −21%, worse
Xmax6.2 mm +12%, better
Sensitivity94.1 dB –
AccutonC173-6-096
£835.73 · 503% more, worseFs50 Hz −19%, better
Qts0.22 −12%, better
Vas17.0 L −11%, better
BL11.4 T·m −40%, worse
Xmax5 mm −9%
Sensitivity91.5 dB −2.9, worse
AccutonS220-6-222
£912.00 · 558% more, worseFs25 Hz −60%, better
Qts0.26 +4%
Vas89.7 L +372%, worse
BL10.9 T·m −43%, worse
Xmax5.3 mm −5%
Sensitivity89.2 dB −5.2, worse
B&C8CLA64
No current priceFs71 Hz +15%, worse
Qts0.24 −4%
Vas12.5 L −34%, better
BL16.4 T·m −14%, worse
Xmax5.3 mm −4%
Sensitivity94.6 dB –
WavecorWF182BD14
No current priceFs36 Hz −42%, better
Qts0.25 –
Vas23 L +21%, worse
BL6.9 T·m −64%, worse
Xmax5.5 mm –
Sensitivity88.2 dB −6.2, worse
Oberton8NB201
No current priceFs71 Hz +14%, worse
Qts0.24 –
Vas12.5 L −34%, better
BL14.4 T·m −25%, worse
Xmax5.3 mm −5%
Sensitivity94.4 dB –
WavecorWF182BD04
No current priceFs34 Hz −45%, better
Qts0.25 –
Vas32.4 L +71%, worse
BL6.8 T·m −65%, worse
Xmax5.5 mm –
Sensitivity88.9 dB −5.5, worse
LavoceWAF082.01
No current priceFs76 Hz +23%, worse
Qts0.21 −16%, better
Vas10.2 L −46%, better
BL17.9 T·m −6%
Xmax5.8 mm +5%
Sensitivity95.1 dB +0.7
Oberton8NM250V2
No current priceFs68 Hz +9%
Qts0.25 –
Vas8.4 L −56%, better
BL21.3 T·m +11%, better
Xmax4 mm −27%, worse
Sensitivity92.1 dB −2.3, worse
No photo
PHL Audio2510
No current priceFs72 Hz +16%, worse
Qts0.24 −4%
Vas13.3 L −30%, better
BL23 T·m +20%, better
Xmax4 mm −27%, worse
Sensitivity95 dB +0.6
Oberton8NMB250V4
No current priceFs82 Hz +32%, worse
Qts0.26 +3%
Vas10.9 L −43%, better
BL14.3 T·m −25%, worse
Xmax4.5 mm −18%, worse
Sensitivity95.5 dB +1.1
CelestionNTR08-2009D
No current priceFs71 Hz +15%, worse
Qts0.21 −16%, better
Vas11.7 L −39%, better
BL18.0 T·m −6%
Xmax6.5 mm +18%, better
Sensitivity94.6 dB –
Eighteen Sound8NCX750
No current priceFs111 Hz +79%, worse
Qts0.26 +4%
Vas5.2 L −73%, better
BL20 T·m +5%
Xmax4 mm −27%, worse
Sensitivity96.2 dB +1.8
REDCATT81NPM-2
No current priceFs69 Hz +11%, worse
Qts0.28 +12%, worse
Vas10.3 L −46%, better
BL19.3 T·m –
Xmax4.0 mm −26%, worse
Sensitivity92.7 dB −1.7
Acoustic EleganceTD8M-8
No current priceFs76 Hz +22%, worse
Qts0.26 +4%
Vas11.3 L −41%, better
BL15.5 T·m −19%, worse
Xmax3 mm −45%, worse
Sensitivity94.6 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Audio | £138.53, the lowest price | 2 in stock | Visit shop at Lean Audio | |
Lean Business | £138.53 | Stock not listed | Visit shop at Lean Business |
Best price over time
Tracked since 1 Apr