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15 PT 1200 MB [2.0]
15 PT 1200 MB [2.0] – PUNCH WITH PRECISION
The 15 PT 1200 MB [2.0] is the second generation of
our 15-inch mid-bass transducer, rated at 1200 W AES
(2400 W program). A 99.3 mm (4-inch), 2-layer copper
voice coil, in/out wound on a glass-fibre former, sits in a
ferrite motor with a force factor of 30.83 N/A against Re
5.57 Ω. That is a Bl²/Re of 171 N²/W, 58 % more motor
than the first-generation 15 PT 1200 MB.
Xmax is now ±8.75 mm (up from ±7 mm), for a peak
displacement volume of 0.73 L. With Fs 44.7 Hz, Qts
0.35 and EBP 127 Hz, the driver is built for vented boxes.
In 75 L tuned to 45 Hz it is flat to about 43 Hz (−3 dB)
and reaches a calculated 126 dB at 1 m at rated power,
before power compression.
Sensitivity is 95 dB (1 W/1 m). The on-axis response
stays within ±3 dB from 100 Hz to 2 kHz, so the handover
to a compression driver at 1.2–1.6 kHz is clean and
well damped.
Key Features
- Program Power : 2400 W
- Voice Coil Diameter : 99.3 mm (4.0 in)
- Response : 45 – 3000 Hz
- Sensitivity 1W/1M : 95 dB
- Nominal Diameter 15 in (395 mm)
- Nominal Impedence 8 Ω
- Nominal Power Handling(AES) 1200 W
- Program Power 2400 W
- Sensitivity (1W/1m) 95 dB
- Frequency Range 45 – 3000 Hz
- Recommended Operating Band 45 – 1600 Hz
- Magnet Material FERRITE
- Voice Coil Diameter 99.3 mm (4.0 in)
- Winding Material COPPER
- Number of Layers 2
- Former Material GLASS FIBRE
- Winding Type IN/OUT
- Resonant Frequency (FS) 45 Hz
- DC Resistance (Re) 5.57 Ω
- Electrical Q (Qes) 0.35
- Mechanical Q (Qms) 23.41
- Total Q (Qts) 0.35
- Compliance Equivalent Volume (vas) 57.86 Ltrs
- Peak Diaphragm Displacement Volume (Vd) 0.73 Ltrs
- Effective Surface Area of Cone (Sd) 829.58 cm²
- Reference Efficiency (ƞo) 1.41 %
- Moving Mass including air load (Mms) 213.38 gms
- Mechanical Compliance(Cms) 0.059 mm/N
- Motor Strength (Bl) 30.83 T•m
- Voice Coil Inductance @ 1 KHz (Le) 1.40 mH
- Efficiency Bandwith Product (EBP) 127 Hz
- Voice Coil Overhang (Xmax) ±8.75 mm
- Overall Diameter 395 mm
- Bolt Circle Diameter 377 mm
- Baffle Cutout Diameter 357 mm
- Depth 170 mm
- Flange and Gasket Thickness 18.60 mm
- Gross Weight 16.50 Kgs
- Recone Kit Number REC15PT1200MB2.0
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