- Net volume
- 25L
- Tuning
- 80Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
- Fs
- 74Hz
- Xmax
- 6mm
- SPL
- 94dB
- Pe
- 280W
- BL
- 9T·m
- Vd
- 138cm³
- Qts
- 0.43
- Vas
- 22L
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/v1
frequency response
Frequency response
240 plotted pointsMedium confidence984 selected pixels of 984 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence832 selected pixels of 832
Published graphs
Eighteen Sound 8MB500 is an 8-inch 8 ohm LF driver rated at 280 W RMS. The validated T/S data includes Fs 74 Hz, Qts 0.43, Vas 21.5 L, Xmax 6 mm, sensitivity 94.4 dB, plus 138 cm³ Vd and 145 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 £97.97.
The published T/S values agree with each other
Thiele/Small
- Fs
- 74Hz
- Qts
- 0.43
- Qes
- 0.51
- Qms
- 2.7
- Vas
- 21.5L
- Re
- 5.1Ω
- Le
- 0.60mH
Motor and cone
- BL
- 9T·m
- Sd
- 230cm²
- Mms
- 17g
- Xmax
- 6mm
- Vd †
- 138cm³
Power and response
- Sensitivity †
- 94.4dB
- Manufacturer sensitivity
- 95dB
- Power
- 280W
- Nominal power
- 280W
- Impedance
- 8Ω
- Range
- 60–4500Hz
- EBP †
- 145 · Leans vented
Size and mounting
- Diameter
- 210mm
- Cutout
- 186mm
- Bolt circle
- 195mm
- Depth
- 99mm
- Weight
- 3.4kg
Other published values
- Power Program
- 400
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 8″
- BL
- 9T·m
- Fs
- 74Hz
- Le
- 0.60mH
- Re
- 5.1Ω
- Sd
- 230cm²
- Mms
- 17g
- Qes
- 0.51
- Qms
- 2.7
- Qts
- 0.43
- SPL
- 94.4dB
- Vas
- 21.5L
- Xmax
- 6mm
- Power
- 280W
- Impedance
- 8Ω
- Sensitivity
- 95dB
- Low limit
- 60Hz
- Nominal power
- 280W
- Power Program
- 400
- Calculated sensitivity †
- 94.4dB
- High limit
- 4500Hz
- Manufacturer sensitivity
- 95dB
- Weight
- 3.4kg
- Diameter
- 210mm
- Depth
- 99mm
- Cutout
- 186mm
- Bolt circle
- 195mm
02
Designs
What Eighteen Sound suggests for the 8MB500. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 8MB500 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 8MB500. Clear differences are green when better and red when worse.
This driver8MB500
Best price
£97.97
Fs
74 Hz
Qts
0.43
Vas
21.5 L
BL
9 T·m
Xmax
6 mm
Sensitivity
94.4 dB
Power
280 W
REDCATT81FHW
£28.47 · 71% less, betterFs39 Hz −47%, better
Qts0.52 +21%, worse
Vas21.5 L –
BL8.3 T·m −8%
Xmax6.1 mm –
Sensitivity85.5 dB −8.9, worse
Dayton AudioPCS8-4
£29.91 · 69% less, betterFs43 Hz −42%, better
Qts0.49 +14%, worse
Vas20.5 L −5%
BL8.4 T·m −7%
Xmax5 mm −17%, worse
Sensitivity86.7 dB −7.7, worse
GRS8SMP-8
£29.91 · 69% less, betterFs41 Hz −45%, better
Qts0.46 +7%
Vas32.5 L +51%, worse
BL8.9 T·m –
Xmax5.5 mm −8%
Sensitivity88.1 dB −6.3, worse
Dayton AudioMB820-8
£37.39 · 62% less, betterFs69 Hz −7%
Qts0.46 +7%
Vas15.8 L −27%, better
BL9.6 T·m +7%
Xmax4 mm −33%, worse
Sensitivity92 dB −2.4, worse
FaitalPRO8FE300
£43.52 · 56% less, betterFs70 Hz −5%
Qts0.44 –
Vas15.7 L −27%, better
BL11.3 T·m +26%, better
Xmax5.5 mm −8%
Sensitivity92.7 dB −1.7
Dayton AudioPA200-8
£44.87 · 54% less, betterFs55 Hz −25%, better
Qts0.48 +12%, worse
Vas26.6 L +24%, worse
BL9.3 T·m +3%
Xmax3 mm −50%, worse
Sensitivity91.5 dB −2.9, worse
Beyma8CMV2
£44.94 · 54% less, betterFs75 Hz –
Qts0.52 +21%, worse
Vas14.6 L −32%, better
BL9.6 T·m +7%
Xmax5.7 mm −5%
Sensitivity92.5 dB −1.9
FaneSOVEREIGN 8-225
£49.00 · 50% less, betterFs62 Hz −16%, better
Qts0.38 −12%, better
Vas22 L –
BL11 T·m +22%, better
Xmax5.5 mm −8%
Sensitivity93 dB −1.4
Scanspeak18W/8434G00
£57.57 · 41% less, betterFs50 Hz −32%, better
Qts0.43 –
Vas19.5 L −9%
BL7.2 T·m −20%, worse
Xmax4.2 mm −30%, worse
Sensitivity89.3 dB −5.1, worse
Dayton AudioRS180P-8
£59.83 · 39% less, betterFs46 Hz −38%, better
Qts0.34 −21%, better
Vas22 L –
BL7.2 T·m −20%, worse
Xmax6 mm –
Sensitivity88.8 dB −5.6, worse
Dayton AudioRS180P-4
£59.83 · 39% less, betterFs38 Hz −49%, better
Qts0.39 −9%
Vas27.3 L +27%, worse
BL4.7 T·m −48%, worse
Xmax6 mm –
Sensitivity86.9 dB −7.5, worse
Dayton AudioRS180-4
£69.58 · 29% less, betterFs38 Hz −48%, better
Qts0.46 +7%
Vas21.2 L –
BL4.7 T·m −48%, worse
Xmax6 mm –
Sensitivity85.1 dB −9.3, worse
Dayton AudioRS180S-8
£78.62 · 20% less, betterFs38 Hz −49%, better
Qts0.36 −16%, better
Vas23 L +7%
BL7.3 T·m −19%, worse
Xmax6 mm –
Sensitivity86 dB −8.4, worse
Sica8 H 2 CP
£81.97 · 16% less, betterFs39 Hz −47%, better
Qts0.43 –
Vas35.9 L +67%, worse
BL9.9 T·m +10%, better
Xmax6.5 mm +8%
Sensitivity88.6 dB −5.8, worse
PRV Audio8MR600X
£94.57 · 3% lessFs77 Hz +4%
Qts0.40 −7%
Vas20.0 L −7%
BL10.5 T·m +17%, better
Xmax5.3 mm −13%, worse
Sensitivity95.3 dB +0.9
SEASH1288-08 CA22RNX
£119.94 · 22% more, worseFs29 Hz −61%, better
Qts0.41 −5%
Vas97 L +351%, worse
BL7 T·m −22%, worse
Xmax6 mm –
Sensitivity88.6 dB −5.8, worse
Eighteen Sound8CX401F
£199.68 · 104% more, worseFs56 Hz −24%, better
Qts0.34 −21%, better
Vas23.9 L +11%, worse
BL9.3 T·m +3%
Xmax5.8 mm −3%
Sensitivity92.5 dB −1.9
WavecorWF182BD11
No current priceFs34 Hz −54%, better
Qts0.42 –
Vas24.3 L +13%, worse
BL8.2 T·m −9%
Xmax5.5 mm −8%
Sensitivity85.4 dB −9, worse
WavecorWF182BD19
No current priceFs34 Hz −54%, better
Qts0.42 –
Vas24.3 L +13%, worse
BL8.2 T·m −9%
Xmax5.5 mm −8%
Sensitivity85.4 dB −9, worse
Eighteen Sound8MB400
No current priceFs64 Hz −14%, better
Qts0.38 −12%, better
Vas23.9 L +11%, worse
BL9.3 T·m +3%
Xmax5.8 mm −3%
Sensitivity93.7 dB −0.7
Lii AudioFAST 6
No current priceFs63 Hz −15%, better
Qts0.46 +6%
Vas22.9 L +7%
BL4.3 T·m −53%, worse
Xmax6 mm –
Sensitivity92.5 dB −1.9
Oberton8CX
No current priceFs76 Hz –
Qts0.40 −7%
Vas16.8 L −22%, better
BL9.4 T·m +5%
Xmax5.3 mm −13%, worse
Sensitivity94.3 dB –
Tang BandW8-670T
No current priceFs40 Hz −46%, better
Qts0.45 +5%
Vas23.3 L +8%
BL9.4 T·m +5%
Xmax7.8 mm +31%, better
Sensitivity86.9 dB −7.5, worse
Tang BandW8-1747A
No current priceFs30 Hz −59%, better
Qts0.41 −5%
Vas23.2 L +8%
BL10.0 T·m +11%, better
Xmax8 mm +33%, better
Sensitivity83 dB −11.4, worse
LavoceNBASS08-20
No current priceFs55 Hz −26%, better
Qts0.48 +12%, worse
Vas18.4 L −14%, better
BL11.3 T·m +26%, better
Xmax6.5 mm +8%
Sensitivity89.9 dB −4.5, worse
No photo
PHL Audio2560-3
No current priceFs79 Hz +7%
Qts0.45 +5%
Vas10.7 L −50%, better
BL10.4 T·m +16%, better
Xmax5.5 mm −8%
Sensitivity92.3 dB −2.1, worse
No current price
Fs62 Hz −16%, better
Qts0.38 −12%, better
Vas22 L –
BL11 T·m +22%, better
Xmax5.5 mm −8%
Sensitivity93 dB −1.4
Oberton8NCX
No current priceFs77 Hz +4%
Qts0.40 −7%
Vas14.9 L −31%, better
BL10.1 T·m +12%, better
Xmax5.3 mm −13%, worse
Sensitivity94 dB –
CIARECME201
No current priceFs60 Hz −19%, better
Qts0.40 −7%
Vas21.5 L –
BL7.5 T·m −17%, worse
Xmax4.5 mm −25%, worse
Sensitivity92.3 dB −2.1, worse
HiViS8-98R
No current priceFs33 Hz −55%, better
Qts0.42 –
Vas65.2 L +203%, worse
BL6.9 T·m −23%, worse
Xmax6 mm –
Sensitivity89 dB −5.4, worse
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 Business | £103.07, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £103.00 | Back order | Visit shop at Lean Audio |
Best price over time
Tracked since 1 Apr