REDCATT61FHM-2
£20.20 · 79% less, betterFs44 Hz −68%, better
Qts0.52 +11%, worse
Vas14.4 L +414%, worse
BL6.0 T·m −58%, worse
Xmax3.2 mm +7%
Sensitivity85.3 dB −7.9, worse
6.5-inch LF driver · 6MDN series · 44 mm voice coil · 200 W
B&C 6MDN44 16Ω
150–6000 Hz
£96.40
SteadyJP Leisure · In stock · All 4 offers
- Fs
- 138Hz
- Xmax
- 3mm
- SPL
- 93dB
- Pe
- 200W
- BL
- 14.5T·m
- Vd
- 40cm³
- Qts
- 0.47
- Vas
- 3L
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/v2
free-air SPL
Frequency response
240 plotted pointsSource file SHA-256 85ae11a9c33b…Medium confidence6,112 selected pixels of 6,112 - Trace datasheet-response-trace-poc/v2
free-air impedance
Impedance response
240 plotted pointsSource file SHA-256 85ae11a9c33b…Medium confidence3,295 selected pixels of 3,295
Published graphs
B&C 6MDN44 is a 6.5-inch 16 ohm LF driver rated at 200 W RMS. The validated T/S data includes Fs 138 Hz, Qts 0.47, Vas 2.8 L, Xmax 3 mm, sensitivity 93.2 dB, plus 40 cm³ Vd and 246 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 £95.07.
The published T/S values agree with each other
Thiele/Small
- Fs
- 138Hz
- Qts
- 0.47
- Qes
- 0.56
- Qms
- 3
- Vas
- 2.8L
- Re
- 11.8Ω
- Le
- 0.56mH
Motor and cone
- BL
- 14.5T·m
- Sd
- 132cm²
- Mms
- 12g
- Xmax
- 3mm
- Vd †
- 40cm³
- Voice coil
- 44mm
- Flux density
- 1.45T
Power and response
- Sensitivity †
- 93.2dB
- Manufacturer sensitivity
- 97dB
- Power
- 200W
- Nominal power
- 200W
- Impedance
- 16Ω
- Min. impedance
- 12.4Ω
- Range
- 150–6000Hz
- EBP †
- 246 · Leans vented
Size and mounting
- Diameter
- 187mm
- Cutout
- 145mm
- Bolt circle
- 172mm
- Depth
- 73mm
- Weight
- 1kg
Sensitivity shows 93.2 dB, calculated from the T/S values. B&C publishes 97.0 dB, 3.8 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else B&C lists
LF
- BL
- 14.5T·m
- Fs
- 138Hz
- Le
- 0.56mH
- Re
- 11.8Ω
- Sd
- 132cm²
- Mms
- 12g
- Qes
- 0.56
- Qms
- 3
- Qts
- 0.47
- SPL
- 93.2dB
- Vas
- 2.8L
- Xmax
- 3mm
- Power
- 200W
- Impedance
- 16Ω
- Flux density
- 1.45T
- Sensitivity
- 97dB
- Low limit
- 150Hz
- Nominal power
- 200W
- Calculated sensitivity †
- 93.2dB
- High limit
- 6000Hz
- Manufacturer sensitivity
- 97dB
- Min. impedance
- 12.4Ω
- Voice coil
- 44mm
- Weight
- 1kg
- Diameter
- 187mm
- Depth
- 73mm
- Cutout
- 145mm
- Bolt circle
- 172mm
- Bl
- 14.5 Tm
- Fs
- 138 Hz
- Le
- 0.56 mH
- Re
- 11.8 Ω
- Sd
- 132 cm² (20.5 in²)
- Ebp
- 246 Hz
- Mms
- 12 g
- Qes
- 0.56
- Qms
- 3
- Qts
- 0.47
- Vas
- 2.8 dm³ (0.1 ft³)
- Η0
- 1.76 %
- Cone
- RCK06MDN4416
- Xmax
- 3 mm
- Xvar
- 4 mm
- Depth
- 73 mm (2.9 in)
- Spider
- Single
- Cone shape
- Exponential
- Net weight
- 1 kg (1.2 lb)
- Pole design
- T-Pole
- Sensitivity
- 97 dB
- Flux density
- 1.45 T
- Shipping box
- 210x210x125 mm (8.27x8.27x4.92 in)
- Winding depth
- 10 mm (0.39 in)
- Shipping units
- 1 pcs
- Surround shape
- Triple Roll
- Former material
- Glass Fibre
- Frequency range
- 150 Hz - 6000 Hz
- Magnet material
- Neodymium Ring
- Shipping weight
- 1.2 kg (2.65 lb)
- Nominal diameter
- 170 mm (6.5 in)
- Overall diameter
- 187 mm (7.4 in)
- Winding material
- Aluminium
- Minimum impedance
- 12.4 Ω
- Nominal impedance
- 16 Ω
- Magnetic gap depth
- 6 mm (0.25 in)
- Voice coil diameter
- 44 mm (1.7 in)
- Bolt circle diameter
- 172 mm (6.7 in)
- Woofer cone treatment
- WP Waterproof Front Side
- Baffle cutout diameter
- 145 mm (5.7 in)
- Nominal power handling
- 200 W
- Continuous power handling
- 400 W
- Flange and gasket thickness
- 11 mm (0.4 in)
- Air volume occupied by driver
- 0.6 dm³ (0.02 ft³)
02
Compare
Same-size drivers, compared with the 6MDN44. Clear differences are green when better and red when worse.
This driver6MDN44
Best price
£95.07
Fs
138 Hz
Qts
0.47
Vas
2.8 L
BL
14.5 T·m
Xmax
3 mm
Sensitivity
93.2 dB
Power
200 W
MonacorSPH-174KE
£29.71 · 69% less, betterFs42 Hz −70%, better
Qts0.51 +9%
Vas26 L +829%, worse
BL5.9 T·m −59%, worse
Xmax3 mm –
Sensitivity86.8 dB −6.4, worse
REDCATT61FIND
£29.71 · 69% less, betterFs130 Hz −6%
Qts0.62 +32%, worse
Vas2.6 L −6%
BL15.6 T·m +8%
Xmax2.3 mm −23%, worse
Sensitivity91.2 dB −2, worse
CelestionTRUVOX 0615
£32.65 · 66% less, betterFs90 Hz −35%, better
Qts0.47 –
Vas7.4 L +166%, worse
BL8.0 T·m −45%, worse
Xmax3.5 mm +17%, better
Sensitivity92.2 dB −1
FaneSOVEREIGN 6-100
£42.00 · 56% less, betterFs115 Hz −17%, better
Qts0.64 +36%, worse
Vas2.2 L −21%, better
BL13.3 T·m −9%
Xmax2.5 mm −17%, worse
Sensitivity89 dB −4.2, worse
LavoceMAF061.50
£42.73 · 55% less, betterFs177 Hz +28%, worse
Qts0.52 +11%, worse
Vas1.9 L −32%, better
BL10.5 T·m −27%, worse
Xmax3.6 mm +20%, better
Sensitivity94.7 dB +1.5
WavecorWF168WA06
£58.00 · 39% less, betterFs41 Hz −70%, better
Qts0.50 +6%
Vas27.7 L +889%, worse
BL6.4 T·m −56%, worse
Xmax3 mm –
Sensitivity87.5 dB −5.7, worse
WavecorWF146WA02
£58.00 · 39% less, betterFs58 Hz −58%, better
Qts0.51 +9%
Vas10 L +257%, worse
BL6.4 T·m −56%, worse
Xmax3 mm –
Sensitivity87.6 dB −5.6, worse
WavecorWF168WA02
£61.01 · 36% less, betterFs49 Hz −64%, better
Qts0.52 +11%, worse
Vas24.6 L +779%, worse
BL6.4 T·m −56%, worse
Xmax3 mm –
Sensitivity89.2 dB −4, worse
Beyma6MI100
£67.06 · 29% less, betterFs128 Hz −7%
Qts0.51 +9%
Vas3.1 L +11%, worse
BL10.8 T·m −26%, worse
Xmax3 mm –
Sensitivity92.8 dB –
CelestionCF0617M
£74.00 · 22% less, betterFs117 Hz −16%, better
Qts0.45 −4%
Vas5.4 L +93%, worse
BL9.7 T·m −33%, worse
Xmax2.7 mm −10%
Sensitivity94.5 dB +1.3
B&C6MD38
£80.57 · 15% less, betterFs150 Hz +9%
Qts0.50 +6%
Vas2.3 L −18%, better
BL14.5 T·m –
Xmax3.5 mm +17%, better
Sensitivity93.1 dB –
MonacorSPH-170
£81.49 · 14% less, betterFs38 Hz −72%, better
Qts0.44 −6%
Vas37 L +1221%, worse
BL5.9 T·m −59%, worse
Xmax3 mm –
Sensitivity87.7 dB −5.5, worse
WavecorWF166TU02
£97.17 · 2% moreFs50 Hz −64%, better
Qts0.48 –
Vas22.3 L +696%, worse
BL5 T·m −66%, worse
Xmax3 mm –
Sensitivity89.5 dB −3.7, worse
Beyma6G40ND
£97.57 · 3% moreFs100 Hz −28%, better
Qts0.38 −19%, better
Vas3.7 L +32%, worse
BL10.6 T·m −27%, worse
Xmax3 mm –
Sensitivity91.2 dB −2, worse
WavecorWF168WA01
£98.04 · 3% moreFs48 Hz −66%, better
Qts0.43 −9%
Vas24.6 L +779%, worse
BL5.1 T·m −65%, worse
Xmax3 mm –
Sensitivity89.6 dB −3.6, worse
FaitalPRO6PR130
£123.04 · 29% more, worseFs175 Hz +27%, worse
Qts0.48 –
Vas4.2 L +50%, worse
BL11.4 T·m −21%, worse
Xmax4.6 mm +53%, better
Sensitivity98 dB +4.8, better
Tang BandW6-2144
£135.73 · 43% more, worseFs45 Hz −67%, better
Qts0.45 −4%
Vas34.6 L +1136%, worse
BL5.5 T·m −62%, worse
Xmax3 mm –
Sensitivity89.1 dB −4.1, worse
SB AudienceNERO-6MRN150D
£169.72 · 79% more, worseFs200 Hz +45%, worse
Qts0.48 –
Vas1.1 L −61%, better
BL13.1 T·m −10%
Xmax3.4 mm +14%, better
Sensitivity93.8 dB +0.6
CelestionCN0617M
No current priceFs198 Hz +43%, worse
Qts0.50 +7%
Vas2.0 L −28%, better
BL17.6 T·m +22%, better
Xmax2.7 mm −10%
Sensitivity96.6 dB +3.4, better
SB AudienceNERO-6MRN151D
No current priceFs230 Hz +67%, worse
Qts0.48 –
Vas0.8 L −71%, better
BL14.5 T·m –
Xmax4 mm +33%, better
Sensitivity94.3 dB +1.1
Eighteen Sound6ND410
No current priceFs149 Hz +8%
Qts0.48 –
Vas6.2 L +121%, worse
BL13 T·m −10%, worse
Xmax2 mm −33%, worse
Sensitivity97.7 dB +4.5, better
PRV Audio6MB400-4
No current priceFs125 Hz −10%
Qts0.52 +11%, worse
Vas5.3 L +89%, worse
BL6.6 T·m −55%, worse
Xmax3 mm –
Sensitivity94.7 dB +1.5
CelestionNTR06-1705B
No current priceFs133 Hz −4%
Qts0.44 −6%
Vas3.6 L +30%, worse
BL10.7 T·m −26%, worse
Xmax4 mm +33%, better
Sensitivity93.7 dB +0.5
FaitalPRO6FE400
No current priceFs100 Hz −28%, better
Qts0.50 +6%
Vas5.5 L +96%, worse
BL13 T·m −10%, worse
Xmax4.8 mm +59%, better
Sensitivity91.9 dB −1.3
LavoceMAN061.80
No current priceFs172 Hz +25%, worse
Qts0.57 +21%, worse
Vas1.6 L −43%, better
BL11.0 T·m −24%, worse
Xmax3 mm –
Sensitivity93 dB –
WavecorWF146OM02
No current priceFs50 Hz −64%, better
Qts0.51 +9%
Vas13.6 L +386%, worse
BL5.4 T·m −63%, worse
Xmax3.3 mm +10%
Sensitivity86.9 dB −6.3, worse
BMS6N160
No current priceFs89 Hz −36%, better
Qts0.47 –
Vas7.7 L +175%, worse
BL11.3 T·m −22%, worse
Xmax5 mm +67%, better
Sensitivity91.7 dB −1.5
AccutonAS190-9-251
No current priceFs33 Hz −76%, better
Qts0.44 −6%
Vas26.7 L +854%, worse
BL13.5 T·m −7%
Xmax9 mm +200%, better
Sensitivity85.1 dB −8.1, worse
BMS6C150
No current priceFs88 Hz −36%, better
Qts0.46 –
Vas7.6 L +171%, worse
BL11.4 T·m −22%, worse
Xmax5 mm +67%, better
Sensitivity92 dB −1.2
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 |
|---|---|---|---|---|
JP Leisure | £96.40, the lowest price | In stock | Visit shop at JP Leisure | |
JP Leisure Not currently listed · Last seen 7 Aug 2026 | £96.40 | In stock | Visit shop at JP Leisure | |
Parts Express Import VAT and duty may apply | £114.25 | 19% above the lowest price | 3 in stock | Visit shop at Parts Express |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 JunJP Leisure£93.28 → £96.40Up 3.3% from £93.28