HiViF5
£23.41Fs52 Hz −43%, better
Qts0.33 −8%
Vas7.3 L +4%
BL8.3 T·m −15%, worse
Xmax2.7 mm +17%, better
Sensitivity86.6 dB −7, worse
6-inch LF driver · 38 mm voice coil · 100 W
REDCATT 61NPM 8Ω
8 Ω
No price for delivery to the UK
- Fs
- 92Hz
- Xmax
- 2.3mm
- SPL
- 94dB
- Pe
- 100W
- BL
- 9.8T·m
- Vd
- 33cm³
- Qts
- 0.36
- Vas
- 7L
REDCATT 61NPM is a 6-inch 8 ohm LF driver rated at 100 W RMS. The validated T/S data includes Fs 92 Hz, Qts 0.36, Vas 7 L, Xmax 2.3 mm, sensitivity 93.6 dB, plus 33 cm³ Vd and 242 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
- 92Hz
- Qts
- 0.36
- Qes
- 0.38
- Qms
- 5.6
- Vas
- 7L
- Re
- 5.2Ω
- Le
- 0.37mH
Motor and cone
- BL
- 9.8T·m
- Sd
- 143cm²
- Mms
- 12g
- Xmax
- 2.3mm
- Vd †
- 33cm³
- Voice coil
- 38mm
Power and response
- Sensitivity †
- 93.6dB
- Manufacturer sensitivity
- 95.4dB
- Power
- 100W
- Impedance
- 8Ω
- EBP †
- 242 · Leans vented
Size and mounting
- Diameter
- 167mm
- Cutout
- 145.9mm
- Bolt circle
- 155mm
- Weight
- 0.8kg
Other published values
- Xmech
- 8.3
- Power Peak
- 400
Other dimensions
- Mounting Depth
- 61.5
Sensitivity shows 93.6 dB, calculated from the T/S values. REDCATT publishes 95.4 dB, 1.8 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else REDCATT lists
LF · Primary · 6″
- BL
- 9.8T·m
- Fs
- 92Hz
- Le
- 0.37mH
- Re
- 5.2Ω
- Sd
- 143cm²
- Mms
- 12g
- Qes
- 0.38
- Qms
- 5.6
- Qts
- 0.36
- SPL
- 93.6dB
- Vas
- 7L
- Xmax
- 2.3mm
- Xmech
- 8.3
- Power
- 100W
- Impedance
- 8Ω
- Power Peak
- 400
- Sensitivity
- 95.4dB
- Calculated sensitivity †
- 93.6dB
- Manufacturer sensitivity
- 95.4dB
- Voice coil
- 38mm
- Weight
- 0.8kg
- Diameter
- 167mm
- Mounting Depth
- 61.5
- Cutout
- 145.9mm
- Bolt circle
- 155mm
02
Compare
Same-size drivers, compared with the 61NPM. Clear differences are green when better and red when worse.
This driver61NPM
Best price
–
Fs
92 Hz
Qts
0.36
Vas
7 L
BL
9.8 T·m
Xmax
2.3 mm
Sensitivity
93.6 dB
Power
100 W
LavoceWSF061.52
£26.27Fs91 Hz –
Qts0.34 −6%
Vas6.6 L −5%
BL10.8 T·m +10%, better
Xmax3.8 mm +65%, better
Sensitivity93.4 dB –
FaitalPRO6FE400
£37.20Fs100 Hz +9%
Qts0.36 –
Vas5 L −29%, better
BL10.5 T·m +7%
Xmax4.8 mm +107%, better
Sensitivity93 dB −0.6
Beyma6CMV2
£40.92Fs90 Hz –
Qts0.34 −6%
Vas6.5 L −7%
BL9.4 T·m −4%
Xmax5.7 mm +148%, better
Sensitivity92.3 dB −1.3
CelestionTFX0615
£59.05Fs97 Hz +5%
Qts0.38 +4%
Vas7.2 L –
BL9.8 T·m –
Xmax5.3 mm +128%, better
Sensitivity93.8 dB –
CIAREFXI6
£63.36Fs70 Hz −24%, better
Qts0.33 −8%
Vas8 L +14%, worse
BL10.6 T·m +8%
Xmax5.3 mm +130%, better
Sensitivity90.7 dB −2.9, worse
PRV Audio6MB550FT
£67.93Fs85 Hz −8%
Qts0.34 −6%
Vas8.2 L +18%, worse
BL9.8 T·m –
Xmax5.4 mm +135%, better
Sensitivity93.3 dB –
B&C6PEV13
£75.19Fs126 Hz +37%, worse
Qts0.36 –
Vas6 L −14%, better
BL8.2 T·m −16%, worse
Xmax2.5 mm +9%
Sensitivity96.9 dB +3.3, better
ETON5-612/C8/25 RP
£75.99Fs55 Hz −40%, better
Qts0.36 –
Vas9.8 L +40%, worse
BL5.9 T·m −40%, worse
Xmax2 mm −13%, worse
Sensitivity88.4 dB −5.2, worse
B&C5NDL38
£81.95Fs80 Hz −13%, better
Qts0.36 –
Vas4.3 L −39%, better
BL9.2 T·m −6%
Xmax3.5 mm +52%, better
Sensitivity89.8 dB −3.8, worse
FaitalPRO6PR160
£83.64Fs90 Hz –
Qts0.33 −8%
Vas5.9 L −16%, better
BL11 T·m +12%, better
Xmax5 mm +117%, better
Sensitivity92.9 dB −0.7
FaitalPRO6PR122
£84.13Fs110 Hz +20%, worse
Qts0.39 +8%
Vas4.7 L −33%, better
BL10.5 T·m +7%
Xmax2.8 mm +20%, better
Sensitivity93.6 dB –
FaitalPRO6PR150
£85.46Fs100 Hz +9%
Qts0.34 −6%
Vas4.9 L −30%, better
BL11.6 T·m +18%, better
Xmax2.6 mm +15%, better
Sensitivity93.5 dB –
B&C6PS44
£86.62Fs71 Hz −23%, better
Qts0.33 −8%
Vas7 L –
BL11 T·m +12%, better
Xmax4.5 mm +96%, better
Sensitivity90.7 dB −2.9, worse
Eighteen Sound6NMB420
£115.20Fs110 Hz +20%, worse
Qts0.33 −8%
Vas6.1 L −13%, better
BL9 T·m −8%
Xmax3 mm +30%, better
Sensitivity95.3 dB +1.7
Oberton6NCX
No current priceFs89 Hz −3%
Qts0.36 –
Vas7.0 L –
BL9 T·m −8%
Xmax4.8 mm +107%, better
Sensitivity93.1 dB −0.5
HiViMY5N
No current priceFs57 Hz −38%, better
Qts0.32 −11%, better
Vas7 L –
BL7.7 T·m −21%, worse
Xmax2.5 mm +9%
Sensitivity87.1 dB −6.5, worse
HiViBG5N
No current priceFs60 Hz −35%, better
Qts0.33 −8%
Vas7.1 L –
BL7.4 T·m −24%, worse
Xmax2.5 mm +9%
Sensitivity87.8 dB −5.8, worse
MonacorTFX0615/8
No current priceFs97 Hz +5%
Qts0.38 +4%
Vas7.2 L –
BL9.8 T·m –
Xmax5.3 mm +128%, better
Sensitivity93.9 dB –
Oberton6NM150
No current priceFs124 Hz +35%, worse
Qts0.38 +5%
Vas4 L −43%, better
BL11.6 T·m +18%, better
Xmax2.3 mm –
Sensitivity94.8 dB +1.2
Oberton6M150
No current priceFs115 Hz +25%, worse
Qts0.42 +17%, worse
Vas5.3 L −24%, better
BL10.0 T·m –
Xmax2.3 mm –
Sensitivity94.5 dB +0.9
BMS6CN160
No current priceFs79 Hz −14%, better
Qts0.34 −6%
Vas8.9 L +27%, worse
BL10 T·m –
Xmax5 mm +117%, better
Sensitivity92.7 dB −0.9
No photo
PHL Audio900ND
No current priceFs65 Hz −29%, better
Qts0.36 –
Vas7.8 L +11%, worse
BL8.1 T·m −17%, worse
Xmax6.5 mm +183%, better
Sensitivity89.3 dB −4.3, worse
PRV Audio6MB550FT-4
No current priceFs86 Hz −6%
Qts0.34 −6%
Vas6.6 L −6%
BL8.6 T·m −12%, worse
Xmax5.4 mm +135%, better
Sensitivity92.9 dB −0.7
LavoceWSN061.52
No current priceFs90 Hz –
Qts0.39 +8%
Vas5.9 L −15%, better
BL9.9 T·m –
Xmax3.8 mm +65%, better
Sensitivity92.1 dB −1.5
HiViD5.8B
No current priceFs52 Hz −43%, better
Qts0.37 –
Vas5.6 L −20%, better
BL9 T·m −8%
Xmax4.8 mm +109%, better
Sensitivity84.8 dB −8.8, worse
FaneSTUDIO 5FRK
No current priceFs58 Hz −37%, better
Qts0.36 –
Vas10.9 L +56%, worse
BL6.8 T·m −30%, worse
Xmax2.4 mm +5%
Sensitivity89.5 dB −4.1, worse
Sica6 N 2 PL
No current priceFs68 Hz −26%, better
Qts0.33 −8%
Vas8.7 L +24%, worse
BL9.5 T·m −3%
Xmax3.5 mm +52%, better
Sensitivity90.8 dB −2.8, worse
No photo
PHL Audio900
No current priceFs65 Hz −29%, better
Qts0.37 –
Vas7.8 L +11%, worse
BL8 T·m −18%, worse
Xmax6.5 mm +183%, better
Sensitivity89.2 dB −4.4, worse
HiViS5N
No current priceFs49 Hz −47%, better
Qts0.34 −6%
Vas8.9 L +27%, worse
BL7.7 T·m −21%, worse
Xmax2.7 mm +17%, better
Sensitivity86.8 dB −6.8, worse
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
None of the shops we track lists delivery to the UK at checkout.