Scanspeak15W/8434G00
£56.10 · 61% less, betterFs45 Hz +18%, worse
Qts0.25 −4%
Vas12.8 L −47%, better
BL7.3 T·m −23%, worse
Xmax4.2 mm +5%
Sensitivity88.4 dB −0.5
6.5-inch LF driver · SPH series · 37 mm voice coil · 60 W
Monacor SPH-170C 8Ω
8 Ω · 3–3500 Hz
£144.60
SteadyWilmslow Audio · All 3 offers
- Fs
- 38Hz
- Xmax
- 4mm
- SPL
- 89dB
- Pe
- 60W
- BL
- 9.4T·m
- Vd
- 51cm³
- Qts
- 0.26
- Vas
- 24L
Monacor SPH-170C is a 6.5-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 38 Hz, Qts 0.26, Vas 24 L, Xmax 4 mm, sensitivity 88.9 dB, plus 51 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 £144.60.
The published T/S values agree with each other
Thiele/Small
- Fs
- 38Hz
- Qts
- 0.26
- Qes
- 0.27
- Qms
- 7.2
- Vas
- 24L
- Re
- 6Ω
- Le
- 0.80mH
Motor and cone
- BL
- 9.4T·m
- Sd
- 127cm²
- Mms
- 16g
- Xmax
- 4mm
- Vd †
- 51cm³
- Voice coil
- 37mm
Power and response
- Sensitivity †
- 88.9dB
- Manufacturer sensitivity
- 88dB
- Power
- 60W
- Impedance
- 8Ω
- Range
- 3–3500Hz
- EBP †
- 141 · Leans vented
Size and mounting
- Diameter
- 180mm
- Cutout
- 145mm
- Depth
- 90mm
- Weight
- 2.0kg
Other published values
- Cms
- 1.06mm/N
- Power Peak
- 120
Other dimensions
- Mounting Depth
- 85
† Calculated by bits from the published values
What this validation status means
Everything else Monacor lists
MF · Primary · 6.5″
- BL
- 9.4T·m
- Fs
- 38Hz
- Le
- 0.80mH
- Re
- 6Ω
- Sd
- 127cm²
- Cms
- 1.06mm/N
- Mms
- 16g
- Qes
- 0.27
- Qms
- 7.2
- Qts
- 0.26
- SPL
- 88.9dB
- Vas
- 24L
- Xmax
- 4mm
- Power
- 60W
- Impedance
- 8Ω
- Power Peak
- 120
- Sensitivity
- 88dB
- Low limit
- 3Hz
- Calculated sensitivity †
- 88.9dB
- High limit
- 3500Hz
- Manufacturer sensitivity
- 88dB
- Voice coil
- 37mm
- Weight
- 2.0kg
- Diameter
- 180mm
- Depth
- 90mm
- Mounting Depth
- 85
- Cutout
- 145mm
02
Compare
Same-size drivers, compared with the SPH-170C. Clear differences are green when better and red when worse.
This driverSPH-170C
Best price
£144.60
Fs
38 Hz
Qts
0.26
Vas
24 L
BL
9.4 T·m
Xmax
4 mm
Sensitivity
88.9 dB
Power
60 W
MonacorSPH-6M
£58.61 · 59% less, betterFs39 Hz –
Qts0.30 +15%, worse
Vas17.6 L −27%, better
BL9.7 T·m –
Xmax4 mm –
Sensitivity86.8 dB −2.1, worse
SB AcousticsSB17NRX2L35-4
£59.85 · 59% less, betterFs41 Hz +8%
Qts0.25 −4%
Vas21.9 L −9%
BL6.5 T·m −32%, worse
Xmax4.8 mm +20%, better
Sensitivity89.7 dB +0.8
SB AcousticsSB17NRX2L35-8
£71.13 · 51% less, betterFs38 Hz –
Qts0.28 +8%
Vas26.1 L +9%
BL7.8 T·m −17%, worse
Xmax4.8 mm +20%, better
Sensitivity88.7 dB –
REDCATT6FHM
£82.06 · 43% less, betterFs36 Hz −5%
Qts0.29 +12%, worse
Vas26.1 L +9%
BL9.9 T·m +5%
Xmax4.3 mm +6%
Sensitivity88.3 dB −0.6
Beyma6P200FE
£88.70 · 39% less, betterFs58 Hz +53%, worse
Qts0.26 –
Vas11.1 L −54%, better
BL10.5 T·m +11%, better
Xmax5 mm +25%, better
Sensitivity91.1 dB +2.2, better
ETON7-612/C8/32 RP
£96.25 · 33% less, betterFs37 Hz –
Qts0.30 +15%, worse
Vas28 L +17%, worse
BL8.6 T·m −9%
Xmax4.5 mm +13%, better
Sensitivity88.5 dB –
CIAREHWG160
£102.15 · 29% less, betterFs39 Hz –
Qts0.27 +4%
Vas27 L +13%, worse
BL8.9 T·m −6%
Xmax6.5 mm +63%, better
Sensitivity89.6 dB +0.7
Eighteen Sound6ND430
£110.59 · 24% less, betterFs61 Hz +61%, worse
Qts0.27 +4%
Vas12.6 L −48%, better
BL10 T·m +6%
Xmax5 mm +25%, better
Sensitivity92.1 dB +3.2, better
WavecorWF182BD13
£157.84 · 9% more, worseFs38 Hz –
Qts0.26 –
Vas20.8 L −13%, better
BL6.9 T·m −27%, worse
Xmax5.5 mm +38%, better
Sensitivity88.3 dB −0.6
WavecorWF182BD16
£191.74 · 33% more, worseFs37 Hz –
Qts0.30 +15%, worse
Vas23 L −4%
BL8.5 T·m −10%
Xmax5.5 mm +38%, better
Sensitivity87.8 dB −1.1
AccutonC158-6-851
£293.02 · 103% more, worseFs31 Hz −18%, better
Qts0.28 +8%
Vas25.7 L +7%
BL8.7 T·m −8%
Xmax5 mm +25%, better
Sensitivity86.2 dB −2.7, worse
Scanspeak15WU/8741T00
£301.39 · 108% more, worseFs35 Hz −8%
Qts0.26 –
Vas19.9 L −17%, better
BL7.5 T·m −21%, worse
Xmax9 mm +125%, better
Sensitivity86.9 dB −2, worse
£373.14 · 158% more, worse
Fs34 Hz −11%, better
Qts0.26 –
Vas30 L +25%, worse
BL8.4 T·m −11%, worse
Xmax5 mm +25%, better
Sensitivity88 dB −0.9
No photo
PHL Audio1426
No current priceFs72 Hz +89%, worse
Qts0.26 –
Vas12.4 L −48%, better
BL10.3 T·m +9%
Xmax4 mm –
Sensitivity94.1 dB +5.2, better
No photo
PHL Audio1426NDU
No current priceFs72 Hz +89%, worse
Qts0.26 –
Vas12.4 L −48%, better
BL10.3 T·m +9%
Xmax4 mm –
Sensitivity94.1 dB +5.2, better
PurifiPTT6.5M04-NAA-08
No current priceFs36 Hz −5%
Qts0.27 +4%
Vas22.7 L −5%
BL8.2 T·m −13%, worse
Xmax2.9 mm −28%, worse
Sensitivity87.8 dB −1.1
Audio Technology18 H 52 06 13 SDKA-LR
No current priceFs32 Hz −16%, better
Qts0.25 −4%
Vas50 L +108%, worse
BL7.4 T·m −22%, worse
Xmax4 mm –
Sensitivity89.9 dB +1
Dayton AudioPS65LP-4
No current priceFs67 Hz +77%, worse
Qts0.24 −8%
Vas17.3 L −28%, better
BL6 T·m −36%, worse
Xmax4 mm –
Sensitivity95.1 dB +6.2, better
Dayton AudioPM180-8
No current priceFs53 Hz +40%, worse
Qts0.28 +8%
Vas28 L +17%, worse
BL7.7 T·m −18%, worse
Xmax4.6 mm +15%, better
Sensitivity93.5 dB +4.6, better
KartesianLOM185_VKI
No current priceFs40 Hz +5%
Qts0.25 −4%
Vas29 L +21%, worse
BL10.4 T·m +11%, better
Xmax8 mm +100%, better
Sensitivity90.6 dB +1.7
KartesianWOM165_VMS
No current priceFs39 Hz –
Qts0.27 +5%
Vas22.1 L −8%
BL8.8 T·m −7%
Xmax4.5 mm +13%, better
Sensitivity90 dB +1.1
PurifiPTT6.5W04-NFA-06
No current priceFs32 Hz −16%, better
Qts0.26 –
Vas28.3 L +18%, worse
BL7.6 T·m −19%, worse
Xmax5.9 mm +48%, better
Sensitivity87.2 dB −1.7
KartesianLOM165_VPA-H
No current priceFs52 Hz +37%, worse
Qts0.26 –
Vas17.4 L −28%, better
BL9.8 T·m +4%
Xmax3.5 mm −13%, worse
Sensitivity92 dB +3.1, better
WavecorWF182BD14
No current priceFs36 Hz −5%
Qts0.25 −4%
Vas23 L −4%
BL6.9 T·m −27%, worse
Xmax5.5 mm +38%, better
Sensitivity88.2 dB −0.7
No photo
PHL Audio1343
No current priceFs40 Hz +5%
Qts0.28 +8%
Vas29.9 L +25%, worse
BL8.1 T·m −14%, worse
Xmax5 mm +25%, better
Sensitivity90.2 dB +1.3
No photo
PHL Audio1343NDU
No current priceFs40 Hz +5%
Qts0.28 +8%
Vas29.9 L +25%, worse
BL8.1 T·m −14%, worse
Xmax5 mm +25%, better
Sensitivity90.2 dB +1.3
CIAREHSG160
No current priceFs37 Hz –
Qts0.27 +4%
Vas16.5 L −31%, better
BL8 T·m −15%, worse
Xmax5.5 mm +38%, better
Sensitivity86.8 dB −2.1, worse
PurifiPTT6.5X04-NFA-06
No current priceFs30 Hz −21%, better
Qts0.29 +12%, worse
Vas25.9 L +8%
BL7.9 T·m −16%, worse
Xmax9.8 mm +145%, better
Sensitivity85.7 dB −3.2, worse
PRV AudioMT6MR600CF-NDY-2
No current priceFs99 Hz +160%, worse
Qts0.24 −8%
Vas4.4 L −82%, better
BL9.9 T·m +5%
Xmax3.3 mm −19%, worse
Sensitivity94.5 dB +5.6, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports5.0 out of 51 rating · Checked 24 Oct 2026Read reviews on SoundImports
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Wilmslow Audio | £144.60, the lowest price | Stock not listed | Visit shop at Wilmslow Audio | |
Audiophonics Import VAT and duty may apply | £108.26 | Available on order | Visit shop at Audiophonics | |
SoundImports Import VAT and duty may apply | £128.07 | Back order | Visit shop at SoundImports |
Best price over time
Tracked since 23 Jul