Precision DevicesPD.154/2
£209.00Fs45 Hz +15%, worse
Qts0.27 +13%, worse
Vas114.9 L −4%
BL29.4 T·m –
Xmax7.7 mm −9%
Sensitivity97.9 dB +1.3
No product photo
15-inch LF driver · 101 mm voice coil · 800 W
PHL Audio 6121M-20 8Ω
8 Ω · 35–1000 Hz
No current price
- Fs
- 39Hz
- Xmax
- 8.5mm
- SPL
- 97dB
- Pe
- 800W
- BL
- 29T·m
- Vd
- 758cm³
- Qts
- 0.24
- Vas
- 120L
PHL Audio 6121M-20 is a 15-inch 8 ohm LF driver rated at 800 W RMS. The validated T/S data includes Fs 39 Hz, Qts 0.24, Vas 119.7 L, Xmax 8.5 mm, sensitivity 96.6 dB, plus 758 cm³ Vd and 156 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 39Hz
- Qts
- 0.24
- Qes
- 0.25
- Qms
- 4.2
- Vas
- 119.7L
- Re
- 5.6Ω
- Le
- 2.06mH
Motor and cone
- BL
- 29T·m
- Sd
- 892cm²
- Mms
- 155g
- Xmax
- 8.5mm
- Vd †
- 758cm³
- Voice coil
- 101mm
Power and response
- Sensitivity †
- 96.6dB
- Manufacturer sensitivity
- 96.5dB
- Power
- 800W
- Nominal power
- 800W
- Impedance
- 8Ω
- Range
- 35–1000Hz
- EBP †
- 156 · Leans vented
Size and mounting
- Diameter
- 406.5mm
- Cutout
- 355mm
- Depth
- 175mm
- Weight
- 9.2kg
Other published values
- Cms
- 0.11mm/N
- Xmech
- 14
Other dimensions
- Mounting Depth
- 175
† Calculated by bits from the published values
What this validation status means
Everything else PHL Audio lists
LF · Primary · 15″
- BL
- 29T·m
- Fs
- 39Hz
- Le
- 2.06mH
- Re
- 5.6Ω
- Sd
- 892cm²
- Cms
- 0.11mm/N
- Mms
- 155g
- Qes
- 0.25
- Qms
- 4.2
- Qts
- 0.24
- SPL
- 96.6dB
- Vas
- 119.7L
- Xmax
- 8.5mm
- Xmech
- 14
- Power
- 800W
- Impedance
- 8Ω
- Sensitivity
- 96.5dB
- Low limit
- 35Hz
- Nominal power
- 800W
- Calculated sensitivity †
- 96.6dB
- High limit
- 1000Hz
- Manufacturer sensitivity
- 96.5dB
- Voice coil
- 101mm
- Weight
- 9.2kg
- Diameter
- 406.5mm
- Depth
- 175mm
- Mounting Depth
- 175
- Cutout
- 355mm
02
Compare
Same-size drivers, compared with the 6121M-20. Clear differences are green when better and red when worse.
No photo
This driver6121M-20
Best price
–
Fs
39 Hz
Qts
0.24
Vas
119.7 L
BL
29 T·m
Xmax
8.5 mm
Sensitivity
96.6 dB
Power
800 W
RCFL15P400
£214.72Fs36 Hz −8%
Qts0.25 +4%
Vas160 L +34%, worse
BL24.8 T·m −14%, worse
Xmax8 mm −6%
Sensitivity96.4 dB –
B&C15TBX100
£225.00Fs35 Hz −10%, better
Qts0.28 +17%, worse
Vas113 L −6%
BL25.5 T·m −12%, worse
Xmax9 mm +6%
Sensitivity94.1 dB −2.5, worse
B&C15NW76
£233.82Fs42 Hz +8%
Qts0.22 −8%
Vas130 L +9%
BL25.5 T·m −12%, worse
Xmax8 mm −6%
Sensitivity98.2 dB +1.6
RCFLF15G401
£238.26Fs36 Hz −8%
Qts0.26 +8%
Vas150 L +25%, worse
BL24.6 T·m −15%, worse
Xmax9 mm +6%
Sensitivity96.2 dB –
Oberton15XB1000
£250.00Fs37 Hz −5%
Qts0.28 +18%, worse
Vas111.0 L −7%
BL25.6 T·m −12%, worse
Xmax9 mm +6%
Sensitivity94.9 dB −1.7
Eighteen Sound15LW1401
£254.65Fs42 Hz +8%
Qts0.27 +13%, worse
Vas131 L +9%
BL24.2 T·m −17%, worse
Xmax9 mm +6%
Sensitivity97.4 dB +0.8
B&C15NW100
£255.00Fs33 Hz −15%, better
Qts0.22 −8%
Vas139 L +16%, worse
BL28 T·m −3%
Xmax9 mm +6%
Sensitivity95.4 dB −1.2
FaitalPRO15HP1020
£263.08Fs40 Hz –
Qts0.27 +13%, worse
Vas126.6 L +6%
BL24.2 T·m −17%, worse
Xmax9 mm +6%
Sensitivity96.6 dB –
Eighteen Sound15NMB1000
£285.89Fs46 Hz +18%, worse
Qts0.24 –
Vas124 L +4%
BL25.2 T·m −13%, worse
Xmax6.5 mm −24%, worse
Sensitivity99 dB +2.4, better
Eighteen Sound15NLW9401
£288.50Fs39 Hz –
Qts0.26 +8%
Vas134 L +12%, worse
BL25.4 T·m −12%, worse
Xmax10 mm +18%, better
Sensitivity96.6 dB –
RCFLF15N401
£329.00Fs34 Hz −13%, better
Qts0.22 −8%
Vas160 L +34%, worse
BL27.8 T·m −4%
Xmax9 mm +6%
Sensitivity96.4 dB –
B&C15SW115
£383.54Fs35 Hz −10%, better
Qts0.24 –
Vas110 L −8%
BL30 T·m +3%
Xmax13.5 mm +59%, better
Sensitivity94.8 dB −1.8
Eighteen Sound15NLW4500
£439.62Fs35 Hz −10%, better
Qts0.26 +8%
Vas111 L −7%
BL29.7 T·m –
Xmax14.5 mm +71%, better
Sensitivity94.5 dB −2.1, worse
No photo
PHL Audio6031M
No current priceFs39 Hz –
Qts0.23 −4%
Vas124 L +4%
BL29 T·m –
Xmax8.5 mm –
Sensitivity96.7 dB –
Oberton15PD600
No current priceFs38 Hz –
Qts0.23 −5%
Vas133.3 L +11%, worse
BL28.7 T·m –
Xmax8.5 mm –
Sensitivity97.1 dB +0.5
Oberton15PD601
No current priceFs38 Hz –
Qts0.23 −5%
Vas133.3 L +11%, worse
BL28.7 T·m –
Xmax8.5 mm –
Sensitivity97.1 dB +0.5
Oberton15NB500
No current priceFs43 Hz +10%
Qts0.26 +6%
Vas121.5 L –
BL24.3 T·m −16%, worse
Xmax7.3 mm −15%, worse
Sensitivity97.7 dB +1.1
P.Audio15NT-115XB
No current priceFs35 Hz −10%, better
Qts0.27 +13%, worse
Vas82.4 L −31%, better
BL29.4 T·m –
Xmax8.5 mm –
Sensitivity93 dB −3.6, worse
No photo
PHL Audio5241MNDU-7
No current priceFs45 Hz +15%, worse
Qts0.26 +8%
Vas120.5 L –
BL24.3 T·m −16%, worse
Xmax7.5 mm −12%, worse
Sensitivity98 dB +1.4
CelestionFTR15-4080F
No current priceFs38 Hz –
Qts0.25 +4%
Vas163.1 L +36%, worse
BL23.5 T·m −19%, worse
Xmax8.5 mm –
Sensitivity97.2 dB +0.6
BMS15S430V2
No current priceFs40 Hz –
Qts0.26 +8%
Vas135 L +13%, worse
BL25.0 T·m −14%, worse
Xmax7.5 mm −12%, worse
Sensitivity97 dB –
Oberton15MB701
No current priceFs44 Hz +13%, worse
Qts0.27 +12%, worse
Vas100.2 L −16%, better
BL26.1 T·m −10%, worse
Xmax9.3 mm +9%
Sensitivity97 dB –
Precision DevicesPD.155NR1
No current priceFs37 Hz −5%
Qts0.23 −5%
Vas140 L +17%, worse
BL28.6 T·m –
Xmax12 mm +41%, better
Sensitivity96.8 dB –
Oberton15XL700
No current priceFs45 Hz +16%, worse
Qts0.28 +17%, worse
Vas117.0 L –
BL23.1 T·m −20%, worse
Xmax8.8 mm –
Sensitivity97.8 dB +1.2
Oberton15XL701
No current priceFs45 Hz +16%, worse
Qts0.28 +17%, worse
Vas117.0 L –
BL23.1 T·m −20%, worse
Xmax8.8 mm –
Sensitivity97.8 dB +1.2
CelestionCF1540F
No current priceFs29 Hz −25%, better
Qts0.23 –
Vas227.9 L +90%, worse
BL23.1 T·m −20%, worse
Xmax8.6 mm –
Sensitivity95.7 dB −0.9
Precision DevicesPD.1550/2
No current priceFs46 Hz +18%, worse
Qts0.29 +21%, worse
Vas126.4 L +6%
BL26.6 T·m −8%
Xmax8.2 mm −4%
Sensitivity98.2 dB +1.6
Oberton15XB700
No current priceFs37 Hz −5%
Qts0.28 +18%, worse
Vas111.0 L −7%
BL25.6 T·m −12%, worse
Xmax9 mm +6%
Sensitivity94.9 dB −1.7
Oberton15NXB1000
No current priceFs38 Hz –
Qts0.28 +18%, worse
Vas105.5 L −12%, better
BL26.0 T·m −10%, worse
Xmax9 mm +6%
Sensitivity95.1 dB −1.5
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
No current price found. Pricing may appear after the next vendor refresh.