CelestionTRUVOX 0820
£59.70 · 83% less, betterFs74 Hz +14%, worse
Qts0.39 +11%, worse
Vas17.3 L +4%
BL11.5 T·m −4%
Xmax5 mm −17%, worse
Sensitivity94.3 dB +1.4
8-inch LF driver
Eighteen Sound 8CX650 8Ω
8 Ω · 90–4700 Hz
£344.69
54%Lean Audio · 2 in stock · All 2 offers
- Fs
- 65Hz
- Xmax
- 6mm
- SPL
- 93dB
- Pe
- –
- BL
- 12T·m
- Vd
- 136cm³
- Qts
- 0.35
- Vas
- 17L
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 1 trace
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 confidence11,670 selected pixels of 11,670
Published graphs
Eighteen Sound 8CX650 is an 8-inch 8 ohm LF driver. The validated T/S data includes Fs 65 Hz, Qts 0.35, Vas 16.6 L, Xmax 6 mm, sensitivity 92.9 dB, plus 136 cm³ Vd and 176 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 £344.69.
The published T/S values agree with each other
Thiele/Small
- Fs
- 65Hz
- Qts
- 0.35
- Qes
- 0.37
- Qms
- 6.4
- Vas
- 16.6L
- Re
- 4.9Ω
- Le
- 0.70mH
Motor and cone
- BL
- 12T·m
- Sd
- 227cm²
- Mms
- 26g
- Xmax
- 6mm
- Vd †
- 136cm³
Power and response
- Sensitivity †
- 92.9dB
- Impedance
- 8Ω
- Range
- 90–4700Hz
- EBP †
- 176 · Leans vented
Size and mounting
- Diameter
- 210mm
- Cutout
- 185mm
- Bolt circle
- 195mm
- Depth
- 132mm
- Weight
- 5.6kg
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 8″
- BL
- 12T·m
- Fs
- 65Hz
- Le
- 0.70mH
- Re
- 4.9Ω
- Sd
- 227cm²
- Mms
- 26g
- Qes
- 0.37
- Qms
- 6.4
- Qts
- 0.35
- SPL
- 92.9dB
- Vas
- 16.6L
- Xmax
- 6mm
- Impedance
- 8Ω
- Low limit
- 90Hz
- Calculated sensitivity †
- 92.9dB
- High limit
- 4700Hz
- Weight
- 5.6kg
- Diameter
- 210mm
- Depth
- 132mm
- Cutout
- 185mm
- Bolt circle
- 195mm
02
Compare
Same-size drivers, compared with the 8CX650. Clear differences are green when better and red when worse.
This driver8CX650
Best price
£344.69
Fs
65 Hz
Qts
0.35
Vas
16.6 L
BL
12 T·m
Xmax
6 mm
Sensitivity
92.9 dB
Power
–
MonacorSP-8/150PRO
£59.78 · 83% less, betterFs56 Hz −14%, better
Qts0.32 −9%
Vas22 L +33%, worse
BL12.0 T·m –
Xmax6 mm –
Sensitivity91.8 dB −1.1
LavoceWAF082.00
£71.42 · 79% less, betterFs78 Hz +20%, worse
Qts0.37 +6%
Vas11.9 L −28%, better
BL12.5 T·m +4%
Xmax6.3 mm +5%
Sensitivity93.4 dB +0.5
FaitalPRO8PR200
£73.79 · 79% less, betterFs58 Hz −11%, better
Qts0.37 +6%
Vas16.9 L –
BL11.5 T·m −4%
Xmax8.2 mm +36%, better
Sensitivity91.4 dB −1.5
Sica8 S 2.5 CP
£80.30 · 77% less, betterFs54 Hz −17%, better
Qts0.33 −6%
Vas18.6 L +12%, worse
BL11.9 T·m –
Xmax5 mm −17%, worse
Sensitivity91 dB −1.9
CelestionCF0820BMB
£85.00 · 75% less, betterFs51 Hz −22%, better
Qts0.37 +5%
Vas22.4 L +35%, worse
BL11.9 T·m –
Xmax7.3 mm +21%, better
Sensitivity90.7 dB −2.2, worse
B&C8PS21
£91.27 · 74% less, betterFs73 Hz +12%, worse
Qts0.33 −6%
Vas14 L −16%, better
BL12.6 T·m +5%
Xmax5 mm −17%, worse
Sensitivity93.8 dB +0.9
B&C8FG51
£99.64 · 71% less, betterFs49 Hz −25%, better
Qts0.32 −9%
Vas20 L +20%, worse
BL12.9 T·m +8%
Xmax6.5 mm +8%
Sensitivity90.4 dB −2.5, worse
Beyma8G40
£100.07 · 71% less, betterFs70 Hz +8%
Qts0.36 –
Vas17 L –
BL12.2 T·m –
Xmax6.5 mm +8%
Sensitivity93.9 dB +1
B&C8NDL51
£102.00 · 70% less, betterFs66 Hz –
Qts0.37 +6%
Vas14 L −16%, better
BL12.4 T·m +3%
Xmax7 mm +17%, better
Sensitivity91.9 dB −1
FaitalPRO8RS250
£102.76 · 70% less, betterFs56 Hz −14%, better
Qts0.32 −9%
Vas18.3 L +10%, worse
BL13.5 T·m +13%, better
Xmax6.9 mm +15%, better
Sensitivity91.8 dB −1.1
CIARENDI8
£103.24 · 70% less, betterFs81 Hz +25%, worse
Qts0.33 −6%
Vas13 L −22%, better
BL12.8 T·m +7%
Xmax4.5 mm −25%, worse
Sensitivity94.9 dB +2, better
Sica8 FE 2 CP
£104.62 · 70% less, betterFs67 Hz +3%
Qts0.32 −9%
Vas16.9 L –
BL12.3 T·m –
Xmax4.5 mm −25%, worse
Sensitivity93.4 dB +0.5
B&C8BG51
£110.00 · 68% less, betterFs52 Hz −20%, better
Qts0.40 +14%, worse
Vas18 L +8%
BL11.8 T·m –
Xmax6.5 mm +8%
Sensitivity89.8 dB −3.1, worse
WavecorSW178WA01
£120.66 · 65% less, betterFs38 Hz −42%, better
Qts0.36 +4%
Vas12.2 L −27%, better
BL12 T·m –
Xmax5 mm −17%, worse
Sensitivity84.6 dB −8.3, worse
B&C8CX21
£151.61 · 56% less, betterFs74 Hz +14%, worse
Qts0.36 –
Vas15 L −10%
BL11.5 T·m −4%
Xmax5.5 mm −8%
Sensitivity94 dB +1.1
SB AudienceNERO-8MWN400D
£152.56 · 56% less, betterFs63 Hz −3%
Qts0.38 +9%
Vas13.9 L −16%, better
BL11.9 T·m –
Xmax6.7 mm +12%, better
Sensitivity91.3 dB −1.6
B&C8FCX51
£186.30 · 46% less, betterFs69 Hz +6%
Qts0.34 –
Vas16 L −4%
BL11.5 T·m −4%
Xmax6 mm –
Sensitivity93.7 dB +0.8
Eighteen Sound8CX401F
£199.68 · 42% less, betterFs56 Hz −14%, better
Qts0.34 –
Vas23.9 L +44%, worse
BL9.3 T·m −22%, worse
Xmax5.8 mm −3%
Sensitivity92.5 dB –
B&C8CXN51
£224.40 · 35% less, betterFs68 Hz +5%
Qts0.27 −23%, better
Vas17 L –
BL12.6 T·m +5%
Xmax6 mm –
Sensitivity94.7 dB +1.8
LavoceCAF082.00K
No current priceFs72 Hz +11%, worse
Qts0.34 –
Vas15.1 L −9%
BL11.7 T·m –
Xmax6.7 mm +12%, better
Sensitivity93.7 dB +0.8
SB AudienceROSSO-8CX250
No current priceFs70 Hz +8%
Qts0.32 −9%
Vas15.8 L −5%
BL11.4 T·m −5%
Xmax5.4 mm −10%
Sensitivity93.7 dB +0.8
No photo
PHL Audio2420
No current priceFs72 Hz +11%, worse
Qts0.33 −6%
Vas13.3 L −20%, better
BL12.9 T·m +8%
Xmax5.5 mm −8%
Sensitivity93.3 dB –
Beyma8CFX260ND
No current priceFs100 Hz +54%, worse
Qts0.35 –
Vas8 L −52%, better
BL13.5 T·m +13%, better
Xmax6 mm –
Sensitivity95.4 dB +2.5, better
JensenBS8N250A-8
No current priceFs59 Hz −9%
Qts0.37 +6%
Vas14.9 L −10%, better
BL12.8 T·m +7%
Xmax5 mm −17%, worse
Sensitivity91 dB −1.9
KartesianWOM200_VPA-S
No current priceFs53 Hz −18%, better
Qts0.35 –
Vas20.9 L +26%, worse
BL11.8 T·m –
Xmax6 mm –
Sensitivity92 dB −0.9
Oberton8MB201
No current priceFs68 Hz +4%
Qts0.31 −10%, better
Vas14.7 L −11%, better
BL12.5 T·m +4%
Xmax7 mm +17%, better
Sensitivity93.4 dB +0.5
Sica8 L 2 SL
No current priceFs64 Hz –
Qts0.32 −9%
Vas18.2 L +10%
BL12.3 T·m –
Xmax3.5 mm −42%, worse
Sensitivity93.3 dB –
MonacorSP-308CX
No current priceFs80 Hz +23%, worse
Qts0.36 –
Vas15.4 L −7%
BL12.1 T·m –
Xmax2.5 mm −58%, worse
Sensitivity94.7 dB +1.8
BMS8N519
No current priceFs75 Hz +15%, worse
Qts0.37 +6%
Vas10.9 L −34%, better
BL13.8 T·m +15%, better
Xmax6.3 mm +5%
Sensitivity92.5 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 | £344.69, the lowest price | 2 in stock | Visit shop at Lean Audio | |
Lean Business | £224.00 | Out of stock | Visit shop at Lean Business |
Best price over time
Tracked since 1 Apr