GRS15PT-8
£53.10Fs28 Hz −44%, better
Qts0.41 +3%
Vas242.1 L +158%, worse
BL20.2 T·m –
Xmax7.8 mm –
Sensitivity92.9 dB −3.5, worse
15-inch LF driver · TSQ1535 series · 90 mm voice coil · 900 W
Celestion TSQ1535 8Ω
8 Ω · 45–3000 Hz
No current price
- Fs
- 50Hz
- Xmax
- 8mm
- SPL
- 96dB
- Pe
- 900W
- BL
- 20.6T·m
- Vd
- 684cm³
- Qts
- 0.40
- Vas
- 94L
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 1 trace
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
LF frequency response
Frequency response
99 plotted pointsMedium confidence103 selected pixels of 211
Published graphs
Celestion TSQ1535 is a 15-inch 8 ohm LF driver rated at 900 W RMS. The validated T/S data includes Fs 50 Hz, Qts 0.40, Vas 94.0 L, Xmax 8 mm, sensitivity 96.4 dB, plus 684 cm³ Vd and 116 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
- 50Hz
- Qts
- 0.40
- Qes
- 0.43
- Qms
- 4.9
- Vas
- 94.0L
- Re
- 5.2Ω
- Le
- 0.88mH
Motor and cone
- BL
- 20.6T·m
- Sd
- 855cm²
- Mms
- 112g
- Xmax
- 8mm
- Vd †
- 684cm³
- Voice coil
- 90mm
Power and response
- Sensitivity †
- 96.4dB
- Manufacturer sensitivity
- 98.2dB
- Power
- 900W
- Impedance
- 8Ω
- Range
- 45–3000Hz
- EBP †
- 116 · Leans vented
Size and mounting
- Diameter
- 393mm
- Cutout
- 354mm
- Bolt circle
- 374mm
- Depth
- 175.2mm
- Weight
- 5.7kg
Other published values
- Cms
- 0.09mm/N
- Rms
- 7.15kg/s
- Power Program
- 1800
Sensitivity shows 96.4 dB, calculated from the T/S values. Celestion publishes 98.2 dB, 1.8 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Celestion lists
LF · Primary · 15″
- BL
- 20.6T·m
- Fs
- 50Hz
- Le
- 0.88mH
- Re
- 5.2Ω
- Sd
- 855cm²
- Cms
- 0.09mm/N
- Mms
- 112g
- Qes
- 0.43
- Qms
- 4.9
- Qts
- 0.40
- Rms
- 7.15kg/s
- SPL
- 96.4dB
- Vas
- 94.0L
- Xmax
- 8mm
- Power
- 900W
- Impedance
- 8Ω
- Sensitivity
- 98.2dB
- Low limit
- 45Hz
- Power Program
- 1800
- Calculated sensitivity †
- 96.4dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 98.2dB
- Voice coil
- 90mm
- Weight
- 5.7kg
- Diameter
- 393mm
- Depth
- 175.2mm
- Cutout
- 354mm
- Bolt circle
- 374mm
02
Compare
Same-size drivers, compared with the TSQ1535. Clear differences are green when better and red when worse.
This driverTSQ1535
Best price
–
Fs
50 Hz
Qts
0.40
Vas
94.0 L
BL
20.6 T·m
Xmax
8 mm
Sensitivity
96.4 dB
Power
900 W
P.Audio15BM-300B-V3
£100.00Fs48 Hz −4%
Qts0.40 –
Vas123.3 L +31%, worse
BL19.2 T·m −7%
Xmax3.9 mm −51%, worse
Sensitivity97 dB +0.6
SB AudienceBIANCO-15MW500
£110.00Fs39 Hz −22%, better
Qts0.40 –
Vas171 L +82%, worse
BL18.8 T·m −9%
Xmax7.6 mm −5%
Sensitivity96 dB –
PRV Audio15W1600
£134.58Fs54 Hz +7%
Qts0.42 +6%
Vas91.2 L −3%
BL24.1 T·m +17%, better
Xmax7 mm −13%, worse
Sensitivity97.1 dB +0.7
CIAREPWA15.75
£146.53Fs44 Hz −12%, better
Qts0.39 –
Vas135 L +44%, worse
BL19.3 T·m −7%
Xmax7 mm −13%, worse
Sensitivity96.5 dB –
FaitalPRO15HP1010
£161.93Fs40 Hz −20%, better
Qts0.37 −7%
Vas107.5 L +14%, worse
BL22 T·m +7%
Xmax9.8 mm +22%, better
Sensitivity94.6 dB −1.8
Beyma15MC500
£173.31Fs46 Hz −8%
Qts0.45 +13%, worse
Vas134 L +43%, worse
BL18.3 T·m −11%, worse
Xmax8 mm –
Sensitivity96.5 dB –
RCFL15P540
£173.78Fs50 Hz –
Qts0.39 –
Vas100 L +6%
BL21.4 T·m +4%
Xmax7 mm −13%, worse
Sensitivity96.9 dB +0.5
B&C15FW88
£181.46Fs49 Hz –
Qts0.43 +8%
Vas103.7 L +10%, worse
BL19.3 T·m −7%
Xmax8 mm –
Sensitivity96.4 dB –
B&C15PS100
£185.00Fs39 Hz −22%, better
Qts0.43 +8%
Vas103 L +10%
BL21.2 T·m –
Xmax8 mm –
Sensitivity93.2 dB −3.2, worse
CIAREPW396
£186.72Fs43 Hz −14%, better
Qts0.41 +3%
Vas129 L +37%, worse
BL20.5 T·m –
Xmax6.5 mm −19%, worse
Sensitivity96 dB –
Beyma15LX60V2
£223.94Fs42 Hz −16%, better
Qts0.44 +11%, worse
Vas105.5 L +12%, worse
BL21.1 T·m –
Xmax8 mm –
Sensitivity94.4 dB −2, worse
B&C15NDL88
£225.24Fs45 Hz −10%, better
Qts0.34 −14%, better
Vas126 L +34%, worse
BL20.1 T·m –
Xmax8 mm –
Sensitivity97.1 dB +0.7
BMS15N630
£225.93Fs39 Hz −22%, better
Qts0.42 +6%
Vas152 L +62%, worse
BL19.8 T·m −4%
Xmax8 mm –
Sensitivity95 dB −1.4
PRV Audio15W1800
£230.22Fs45 Hz −9%
Qts0.42 +6%
Vas100.4 L +7%
BL23.2 T·m +12%, better
Xmax9.5 mm +19%, better
Sensitivity95.4 dB −1
Sica15 PFS 4
£267.10Fs39 Hz −22%, better
Qts0.34 −14%, better
Vas103.9 L +11%, worse
BL24.2 T·m +17%, better
Xmax8 mm –
Sensitivity94.2 dB −2.2, worse
Beyma15LEX1000ND
£292.25Fs41 Hz −18%, better
Qts0.37 −7%
Vas113 L +20%, worse
BL21.9 T·m +6%
Xmax10 mm +25%, better
Sensitivity94.8 dB −1.6
Eighteen Sound15NTLW3500
£319.85Fs45 Hz −10%, better
Qts0.39 –
Vas131 L +39%, worse
BL19.5 T·m −6%
Xmax8.3 mm +4%
Sensitivity96.8 dB –
FaitalPRO15XL1200
£334.09Fs40 Hz −20%, better
Qts0.40 –
Vas86.9 L −8%
BL23.6 T·m +14%, better
Xmax12.4 mm +56%, better
Sensitivity93.4 dB −3, worse
P.Audio15FT-100SW
No current priceFs42 Hz −16%, better
Qts0.40 –
Vas90 L −4%
BL23.5 T·m +14%, better
Xmax7.5 mm −6%
Sensitivity94 dB −2.4, worse
P.AudioC15-600EL-V3
No current priceFs45 Hz −10%, better
Qts0.40 –
Vas94.6 L –
BL20.4 T·m –
Xmax5.3 mm −34%, worse
Sensitivity95 dB −1.4
Eighteen Sound15TLW3000
No current priceFs44 Hz −12%, better
Qts0.39 –
Vas80 L −15%, better
BL18 T·m −13%, worse
Xmax9 mm +13%, better
Sensitivity94.2 dB −2.2, worse
B&C15RBX100
No current priceFs44 Hz −12%, better
Qts0.38 −4%
Vas100 L +6%
BL24 T·m +16%, better
Xmax9 mm +13%, better
Sensitivity95.3 dB −1.1
Eighteen Sound15LW1410
No current priceFs43 Hz −14%, better
Qts0.34 −14%, better
Vas99.8 L +6%
BL20.7 T·m –
Xmax8.5 mm +6%
Sensitivity95.6 dB −0.8
P.Audio15NT-100SW
No current priceFs38 Hz −24%, better
Qts0.43 +8%
Vas115.7 L +23%, worse
BL21.2 T·m –
Xmax9 mm +13%, better
Sensitivity93.4 dB −3, worse
PeerlessSDF-375F75PR01-04
No current priceFs26 Hz −48%, better
Qts0.42 +6%
Vas91.2 L –
BL19.2 T·m −7%
Xmax23.9 mm +199%, better
Sensitivity87.7 dB −8.7, worse
Precision DevicesPD.154NR1
No current priceFs46 Hz −8%
Qts0.40 –
Vas158 L +68%, worse
BL18.5 T·m −10%, worse
Xmax8.5 mm +6%
Sensitivity97.6 dB +1.2
CelestionFTR15-3070E
No current priceFs46 Hz −8%
Qts0.38 −5%
Vas145.8 L +55%, worse
BL17.9 T·m −13%, worse
Xmax7.8 mm −3%
Sensitivity97.2 dB +0.8
RCFM15P550
No current priceFs45 Hz −10%, better
Qts0.37 −7%
Vas140 L +49%, worse
BL19.8 T·m −4%
Xmax7 mm −13%, worse
Sensitivity97 dB +0.6
P.Audio15BM-400B-V3
No current priceFs48 Hz −4%
Qts0.40 –
Vas123.3 L +31%, worse
BL19.2 T·m −7%
Xmax3.9 mm −51%, worse
Sensitivity97 dB +0.6
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.