15-inch LF driver · 450 W
Eighteen Sound 15W700 4Ω
38–5000 Hz
£211.00
0.5%Thomann · In stock · All 4 offers
- Fs
- 41Hz
- Xmax
- 6.5mm
- SPL
- 98dB
- Pe
- 450W
- BL
- 14.7T·m
- Vd
- 553cm³
- Qts
- 0.27
- Vas
- 180L
Published graphs
Eighteen Sound 15W700 is a 15-inch 4 ohm LF driver rated at 450 W RMS. The validated T/S data includes Fs 41 Hz, Qts 0.27, Vas 180 L, Xmax 6.5 mm, sensitivity 98.3 dB, plus 553 cm³ Vd and 141 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 £177.18.
The published T/S values agree with each other
Thiele/Small
- Fs
- 41Hz
- Qts
- 0.27
- Qes
- 0.29
- Qms
- 4.0
- Vas
- 180L
- Re
- 2.8Ω
- Le
- 0.54mH
Motor and cone
- BL
- 14.7T·m
- Sd
- 850cm²
- Mms
- 86g
- Xmax
- 6.5mm
- Vd †
- 553cm³
Power and response
- Sensitivity †
- 98.3dB
- Manufacturer sensitivity
- 97dB
- Power
- 450W
- Nominal power
- 450W
- Impedance
- 4Ω
- Range
- 38–5000Hz
- EBP †
- 141 · Leans vented
Size and mounting
- Diameter
- 387mm
- Cutout
- 353mm
- Bolt circle
- 370mm
- Depth
- 168mm
- Weight
- 8.5kg
Other published values
- Power Program
- 700
Sensitivity shows 98.3 dB, calculated from the T/S values. Eighteen Sound publishes 97.0 dB, 1.3 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 15″
- BL
- 14.7T·m
- Fs
- 41Hz
- Le
- 0.54mH
- Re
- 2.8Ω
- Sd
- 850cm²
- Mms
- 86g
- Qes
- 0.29
- Qms
- 4.0
- Qts
- 0.27
- SPL
- 98.3dB
- Vas
- 180L
- Xmax
- 6.5mm
- Power
- 450W
- Impedance
- 4Ω
- Sensitivity
- 97dB
- Low limit
- 38Hz
- Nominal power
- 450W
- Power Program
- 700
- Calculated sensitivity †
- 98.3dB
- High limit
- 5000Hz
- Manufacturer sensitivity
- 97dB
- Weight
- 8.5kg
- Diameter
- 387mm
- Depth
- 168mm
- Cutout
- 353mm
- Bolt circle
- 370mm
02
Designs
Cabinets for the 15W700: a design and a suggested box from Eighteen Sound.
All 15W700 designsHow we find designsEighteen Sound’s design
From the maker, with plans to download
Eighteen Sound’s suggested box
From Eighteen Sound’s 15W700 page
- Net volume
- 110L
- Tuning
- 48Hz
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 15W700. Clear differences are green when better and red when worse.
This driver15W700
Best price
£177.18
Fs
41 Hz
Qts
0.27
Vas
180 L
BL
14.7 T·m
Xmax
6.5 mm
Sensitivity
98.3 dB
Power
450 W
Dayton AudioPA380-8
£104.31 · 41% less, betterFs32 Hz −23%, better
Qts0.27 –
Vas175 L –
BL25.8 T·m +76%, better
Xmax5 mm −23%, worse
Sensitivity95.1 dB −3.2, worse
B&C15CL76
£124.79 · 30% less, betterFs42 Hz –
Qts0.25 −7%
Vas140 L −22%, better
BL19.1 T·m +30%, better
Xmax7 mm +8%
Sensitivity97.9 dB –
Beyma15WR400
£165.43 · 7% less, betterFs36 Hz −12%, better
Qts0.30 +11%, worse
Vas236 L +31%, worse
BL19.2 T·m +31%, better
Xmax6.3 mm −3%
Sensitivity97.5 dB −0.8
EminenceKAPPA PRO-15LF
£166.34 · 6% less, betterFs35 Hz −15%, better
Qts0.30 +11%, worse
Vas198.8 L +10%, worse
BL21.6 T·m +47%, better
Xmax6.7 mm +3%
Sensitivity96.3 dB −2, worse
Eighteen Sound15MB700
£174.30 · 2% lessFs42 Hz –
Qts0.29 +7%
Vas202 L +12%, worse
BL17.6 T·m +20%, better
Xmax5.5 mm −15%, worse
Sensitivity98.9 dB +0.6
B&C15PS76
£183.00 · 3% moreFs38 Hz −7%
Qts0.26 −4%
Vas164 L −9%
BL22.1 T·m +50%, better
Xmax7.5 mm +15%, better
Sensitivity97.1 dB −1.2
Eighteen Sound15W750
£185.54 · 5% moreFs39 Hz −5%
Qts0.29 +7%
Vas253 L +41%, worse
BL14 T·m −5%
Xmax8 mm +23%, better
Sensitivity99 dB +0.7
FaitalPRO15FH500
£213.12 · 20% more, worseFs33 Hz −20%, better
Qts0.28 +4%
Vas209.5 L +16%, worse
BL16.2 T·m +10%, better
Xmax9.4 mm +45%, better
Sensitivity96.2 dB −2.1, worse
Eighteen Sound15ND930
£233.35 · 32% more, worseFs35 Hz −15%, better
Qts0.24 −11%, better
Vas182 L –
BL17 T·m +16%, better
Xmax7.5 mm +15%, better
Sensitivity97.1 dB −1.2
Eighteen Sound15ND830
£239.87 · 35% more, worseFs42 Hz –
Qts0.34 +26%, worse
Vas157 L −13%, better
BL14 T·m −5%
Xmax6.5 mm –
Sensitivity97.1 dB −1.2
B&C15NDL88
£244.00 · 38% more, worseFs41 Hz –
Qts0.28 +4%
Vas154 L −14%, better
BL16.5 T·m +12%, better
Xmax8 mm +23%, better
Sensitivity97.7 dB −0.6
Sica15 K 3 PL
£271.63 · 53% more, worseFs40 Hz –
Qts0.27 –
Vas166.1 L −8%
BL21.4 T·m +46%, better
Xmax6.5 mm –
Sensitivity97.8 dB −0.5
B&C15CXN76
£396.97 · 124% more, worseFs38 Hz −7%
Qts0.28 +4%
Vas246 L +37%, worse
BL17.8 T·m +21%, better
Xmax6 mm −8%
Sensitivity98.6 dB –
B&C15HCX76
£399.49 · 125% more, worseFs38 Hz −7%
Qts0.28 +4%
Vas246 L +37%, worse
BL17.8 T·m +21%, better
Xmax6 mm −8%
Sensitivity98.6 dB –
Eighteen Sound15W600
No current priceFs38 Hz −7%
Qts0.29 +7%
Vas183 L –
BL20.5 T·m +39%, better
Xmax6.5 mm –
Sensitivity97.3 dB −1
CelestionFTX1530
No current priceFs43 Hz +4%
Qts0.28 –
Vas172.1 L −4%
BL20.2 T·m +37%, better
Xmax6 mm −8%
Sensitivity98.5 dB –
Eighteen Sound15ND730
No current priceFs44 Hz +7%
Qts0.29 +7%
Vas156 L −13%, better
BL21 T·m +43%, better
Xmax6.5 mm –
Sensitivity98.5 dB –
Eighteen Sound15NMB420
No current priceFs42 Hz –
Qts0.29 +7%
Vas225 L +25%, worse
BL19 T·m +29%, better
Xmax6.5 mm –
Sensitivity99.5 dB +1.2
FaneCOLOSSUS 15SB
No current priceFs41 Hz –
Qts0.29 +7%
Vas151 L −16%, better
BL22.5 T·m +53%, better
Xmax6.5 mm –
Sensitivity97.4 dB −0.9
Oberton15B450 / 15B450A / 15B450A2
No current priceFs45 Hz +10%
Qts0.29 +6%
Vas146.8 L −18%, better
BL20.4 T·m +39%, better
Xmax6.8 mm +4%
Sensitivity98.6 dB –
Eighteen Sound15ND940
No current priceFs39 Hz −5%
Qts0.26 −4%
Vas170 L −6%
BL16.6 T·m +13%, better
Xmax9.5 mm +46%, better
Sensitivity97.8 dB −0.5
No photo
PHL Audio5011MNDU
No current priceFs38 Hz −7%
Qts0.26 −4%
Vas169 L −6%
BL23.7 T·m +61%, better
Xmax7.5 mm +15%, better
Sensitivity97.2 dB −1.1
RCFMB15N405
No current priceFs46 Hz +12%, worse
Qts0.27 –
Vas124 L −31%, better
BL23.5 T·m +60%, better
Xmax7 mm +8%
Sensitivity98.4 dB –
Oberton15B500
No current priceFs38 Hz −7%
Qts0.27 –
Vas145.8 L −19%, better
BL22.9 T·m +56%, better
Xmax7.3 mm +12%, better
Sensitivity96.8 dB −1.5
BMS15N830V2
No current priceFs37 Hz −10%
Qts0.27 –
Vas159 L −12%, better
BL22.4 T·m +52%, better
Xmax8 mm +23%, better
Sensitivity96.5 dB −1.8
No current price
Fs45 Hz +10%
Qts0.27 –
Vas127 L −29%, better
BL24.5 T·m +67%, better
Xmax7.5 mm +15%, better
Sensitivity98 dB –
Oberton15NB451
No current priceFs40 Hz −3%
Qts0.26 −5%
Vas145.2 L −19%, better
BL22.9 T·m +56%, better
Xmax7 mm +8%
Sensitivity97.4 dB −0.9
Oberton15HCX
No current priceFs41 Hz –
Qts0.30 +11%, worse
Vas205.5 L +14%, worse
BL17.1 T·m +16%, better
Xmax7.8 mm +19%, better
Sensitivity98.5 dB –
No photo
PHL Audio5021M
No current priceFs32 Hz −22%, better
Qts0.30 +11%, worse
Vas169 L −6%
BL24 T·m +63%, better
Xmax7 mm +8%
Sensitivity94.4 dB −3.9, worse
Sica15 F 4 CP
No current priceFs46 Hz +13%, worse
Qts0.27 –
Vas97 L −46%, better
BL26 T·m +77%, better
Xmax7 mm +8%
Sensitivity97.4 dB −0.9
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann4.8 out of 56 ratings · Checked 4 Nov 2026Read reviews on Thomann
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Thomann | £211.00, the lowest price | In stock | Visit shop at Thomann | |
Lean Audio | £217.24 | 3.0% above the lowest price | Back order | Visit shop at Lean Audio |
Best price over time
Tracked since 1 Apr
Recent changes
- 4 NovThomann£212.00 → £211.00Down 0.5% from £212.00
- 27 OctThomann£213.00 → £212.00Down 0.5% from £213.00
- 19 OctThomann£214.00 → £213.00Down 0.5% from £214.00