Dayton AudioDA175-8
£29.91Fs39 Hz −58%, better
Qts0.58 −22%, better
Vas16.3 L +4%
BL7.2 T·m +13%, better
Xmax4.3 mm +31%, better
Sensitivity83.4 dB −10.8, worse
8-inch LF driver · 38 mm voice coil
PRV Audio 8MR400B-4 4Ω
4 Ω · 95–7500 Hz
No price for delivery to the UK
- Fs
- 93Hz
- Xmax
- 3.3mm
- SPL
- 94dB
- Pe
- –
- BL
- 6.3T·m
- Vd
- 75cm³
- Qts
- 0.74
- Vas
- 16L
PRV Audio 8MR400B-4 is an 8-inch 4 ohm LF driver. The validated T/S data includes Fs 93 Hz, Qts 0.74, Vas 15.7 L, Xmax 3.3 mm, sensitivity 94.2 dB, plus 75 cm³ Vd and 122 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
- 93Hz
- Qts
- 0.74
- Qes
- 0.76
- Qms
- 25.5
- Vas
- 15.7L
- Re
- 3.8Ω
- Le
- 0.17mH
Motor and cone
- BL
- 6.3T·m
- Sd
- 230cm²
- Mms
- 14g
- Xmax
- 3.3mm
- Vd †
- 75cm³
- Voice coil
- 38mm
Power and response
- Sensitivity †
- 94.2dB
- Manufacturer sensitivity
- 93.5dB
- Impedance
- 4Ω
- Range
- 95–7500Hz
- Crossover
- 125Hz
- EBP †
- 122 · Leans vented
Size and mounting
- Diameter
- 209mm
- Cutout
- 181mm
- Depth
- 75mm
- Weight
- 2.3kg
Other published values
- Cms
- 0.21mm/N
Other dimensions
- Mounting Depth
- 68
† Calculated by bits from the published values
What this validation status means
Everything else PRV Audio lists
MF · Primary · 8″
- BL
- 6.3T·m
- Fs
- 93Hz
- Le
- 0.17mH
- Re
- 3.8Ω
- Sd
- 230cm²
- Cms
- 0.21mm/N
- Mms
- 14g
- Qes
- 0.76
- Qms
- 25.5
- Qts
- 0.74
- SPL
- 94.2dB
- Vas
- 15.7L
- Xmax
- 3.3mm
- Impedance
- 4Ω
- Sensitivity
- 93.5dB
- Low limit
- 95Hz
- Calculated sensitivity †
- 94.2dB
- High limit
- 7500Hz
- Manufacturer sensitivity
- 93.5dB
- Voice coil
- 38mm
- Crossover
- 125Hz
- Weight
- 2.3kg
- Diameter
- 209mm
- Depth
- 75mm
- Mounting Depth
- 68
- Cutout
- 181mm
02
Compare
Same-size drivers, compared with the 8MR400B-4. Clear differences are green when better and red when worse.
This driver8MR400B-4
Best price
–
Fs
93 Hz
Qts
0.74
Vas
15.7 L
BL
6.3 T·m
Xmax
3.3 mm
Sensitivity
94.2 dB
Power
–
BishopSoundBSP8
£34.00Fs107 Hz +15%, worse
Qts0.74 –
Vas6.4 L −59%, better
BL11.0 T·m +74%, better
Xmax3.5 mm +8%
Sensitivity92.1 dB −2.1, worse
PRV Audio8MR500-4
£37.34Fs78 Hz −16%, better
Qts0.46 −38%, better
Vas20.8 L +32%, worse
BL6.5 T·m –
Xmax3.3 mm –
Sensitivity95.2 dB +1
MonacorSPM-205/8
£38.40Fs37 Hz −60%, better
Qts0.70 −5%
Vas54 L +244%, worse
BL6.5 T·m –
Xmax3 mm −8%
Sensitivity86.8 dB −7.4, worse
MonacorSP-202E
£41.78Fs51 Hz −45%, better
Qts0.69 −7%
Vas39 L +148%, worse
BL4.9 T·m −23%, worse
Xmax2.5 mm −23%, worse
Sensitivity90.1 dB −4.1, worse
Sica8 H 1.5 CS
£44.29Fs51 Hz −46%, better
Qts0.72 –
Vas26.9 L +71%, worse
BL7.0 T·m +11%, better
Xmax4 mm +23%, better
Sensitivity87.7 dB −6.5, worse
REDCATT8FHW-1
£51.91Fs41 Hz −56%, better
Qts0.60 −19%, better
Vas19.6 L +25%, worse
BL7.9 T·m +24%, better
Xmax8.7 mm +168%, better
Sensitivity84.6 dB −9.6, worse
PRV Audio8FR250
£52.71Fs76 Hz −19%, better
Qts1.02 +38%, worse
Vas21.2 L +35%, worse
BL6.5 T·m –
Xmax3.5 mm +8%
Sensitivity91.2 dB −3, worse
EminenceALPHA-8A
£54.66Fs73 Hz −21%, better
Qts0.59 −20%, better
Vas17.7 L +13%, worse
BL7.8 T·m +23%, better
Xmax3.2 mm –
Sensitivity92.1 dB −2.1, worse
Scanspeak18W/8424G00
£57.77Fs54 Hz −42%, better
Qts0.45 −39%, better
Vas20.3 L +29%, worse
BL6.6 T·m +4%
Xmax2.6 mm −20%, worse
Sensitivity90 dB −4.2, worse
PeerlessSLS-P830667
£66.94Fs46 Hz −50%, better
Qts0.75 –
Vas19 L +21%, worse
BL8.3 T·m +31%, better
Xmax11.1 mm +242%, better
Sensitivity85.5 dB −8.7, worse
CIARECME200
£67.27Fs76 Hz −18%, better
Qts0.37 −50%, better
Vas18 L +15%, worse
BL7.3 T·m +15%, better
Xmax3.5 mm +8%
Sensitivity95.1 dB +0.9
PRV Audio69MR500-4
£68.20Fs149 Hz +60%, worse
Qts1.12 +51%, worse
Vas5.2 L −67%, better
BL5.9 T·m −8%
Xmax3.3 mm –
Sensitivity93.6 dB −0.6
Tang BandW8-2145
£150.67Fs40 Hz −57%, better
Qts0.45 −39%, better
Vas67.7 L +331%, worse
BL6.6 T·m +4%
Xmax3 mm −8%
Sensitivity90.5 dB −3.7, worse
VisatonB 200
£158.23Fs40 Hz −57%, better
Qts0.75 –
Vas102 L +550%, worse
BL3.9 T·m −38%, worse
Xmax3.5 mm +8%
Sensitivity91 dB −3.2, worse
Scanspeak18M/8631T00
£192.54Fs65 Hz −30%, better
Qts0.71 −4%
Vas14 L −11%, better
BL6.5 T·m –
Xmax3 mm −8%
Sensitivity88.7 dB −5.5, worse
Scanspeak18M/4631T00
£192.54Fs65 Hz −30%, better
Qts0.60 −19%, better
Vas14 L −11%, better
BL5.6 T·m −12%, worse
Xmax3 mm −8%
Sensitivity89.6 dB −4.6, worse
PRV Audio8MR450CF-4
No current priceFs83 Hz −11%, better
Qts0.71 −4%
Vas17.5 L +12%, worse
BL6.1 T·m −4%
Xmax3.5 mm +8%
Sensitivity93.4 dB −0.8
PRV Audio69MR500-PHP-4
No current priceFs92 Hz –
Qts0.65 −12%, better
Vas15.2 L −3%
BL6.8 T·m +7%
Xmax2.9 mm −12%, worse
Sensitivity94.4 dB –
PRV Audio8MB450-4
No current priceFs77 Hz −18%, better
Qts0.88 +19%, worse
Vas17.0 L +8%
BL6.2 T·m –
Xmax4.5 mm +38%, better
Sensitivity91.2 dB −3, worse
PRV Audio8MB500
No current priceFs69 Hz −25%, better
Qts0.75 –
Vas19.4 L +23%, worse
BL8.7 T·m +37%, better
Xmax4.5 mm +38%, better
Sensitivity91.2 dB −3, worse
PRV Audio8MB500-4
No current priceFs72 Hz −22%, better
Qts0.64 −14%, better
Vas17.3 L +10%
BL7.5 T·m +19%, better
Xmax4.5 mm +38%, better
Sensitivity91.9 dB −2.3, worse
Tang BandW8-2282
No current priceFs35 Hz −62%, better
Qts0.66 −11%, better
Vas12.9 L −18%, better
BL10.8 T·m +70%, better
Xmax5 mm +54%, better
Sensitivity80.7 dB −13.5, worse
SB AcousticsSB20PFCS30-7
No current priceFs39 Hz −58%, better
Qts0.66 −11%, better
Vas59.5 L +279%, worse
BL5.6 T·m −12%, worse
Xmax5.5 mm +69%, better
Sensitivity88.6 dB −5.6, worse
PRV Audio8MR360-4
No current priceFs98 Hz +5%
Qts0.51 −31%, better
Vas14.4 L −8%
BL6.8 T·m +8%
Xmax4 mm +23%, better
Sensitivity96.1 dB +1.9
PRV Audio8MR500-NDY-4
No current priceFs79 Hz −16%, better
Qts0.54 −27%, better
Vas24.3 L +55%, worse
BL6.0 T·m −5%
Xmax3 mm −8%
Sensitivity95.2 dB +1
Supravox215-2000 MK2
No current priceFs70 Hz −25%, better
Qts0.84 +14%, worse
Vas30 L +91%, worse
BL5.2 T·m −17%, worse
Xmax2.9 mm −11%, worse
Sensitivity92.5 dB −1.7
MonacorSP-202PA
No current priceFs68 Hz −27%, better
Qts1.10 +49%, worse
Vas12 L −24%, better
BL5.6 T·m −12%, worse
Xmax3 mm −8%
Sensitivity84.3 dB −9.9, worse
Eminence820H
No current priceFs144 Hz +55%, worse
Qts0.88 +19%, worse
Vas9.6 L −39%, better
BL5.7 T·m −9%
Xmax1.6 mm −51%, worse
Sensitivity97 dB +2.8, better
MonacorSPM-205/4
No current priceFs37 Hz −60%, better
Qts0.55 −26%, better
Vas72 L +359%, worse
BL4.8 T·m −25%, worse
Xmax3 mm −8%
Sensitivity89.3 dB −4.9, worse
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express5.0 out of 521 ratings · Checked 25 Oct 2026Read reviews on Parts Express
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