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The PRV 12MB1500FT has an excellent linear response, well controlled down to 75 Hz, which makes it a great option for 2-way cabinet systems that require strong BL magnet force and midbass punch. A great new addition to the Forte Series, where more power handling and less distortion on mid low mid bass frequencies is the key.



  • High BL factor and Xmax for outstanding Low output
  • Rated at 1500 watts RMS Continuous Program Power
  • 98.5 dB sensitivity, which makes it capable of generating a lot of output!
  • 3.5″ Inside/Out CCAW voice coil wound on fiberglass former for hi-temp performance, 8 Ohm

Supporting the cone is a heavy duty spider M roll treated cloth surround, designed for high excursion applications to handle short bursts of excessive power without damage. A double silicon spider system ensures excellent control during large excursions of 1.50″ peak-to-peak excursion before damage. 

A very strong ferrite magnetic structure of 25 mm guarantees dynamism and precision and a unique 3,5” inside/outside voice coil design provides a very high-power handling of 1500 Watts RMS of musical power, thanks to its dual forced cooling system guarantees a very efficient voice coil ventilation for minimum power compression.

Technical Details


Nominal Diameter 12″ (305 mm)
Nominal impedance 8 Ohms
Nominal Power Handling* 750 Watts
Continuous Program Power (RMS)** 1500 Watts
Max Peak Power*** 3000 Watts
Sensitivity 2.83V at 1m 98.5 dB
Recommended Hi Pass Crossover
For Full Power Handling
90 Hz
12db Per Octave Crossover
Frequency Response 75 – 5,000 Hz
Voice Coil Diameter 3.5″ (89 mm)
Voice Coil Wire CCAW
Voice Coil Winding Depth 17.0 mm
Former Material Glass Fiber
Magnetic Gap Depth 10.0 mm
Frame Material Die Cast Aluminum
12MB1500FT Frequency Response

*Nominal power handling is defined as the maximum RMS power that the speaker can handle in a 2-hour test with a pink noise with 6dB of crest factor and a bandpass filter with 12db/oct tuned in its usable frequency range.
**Continuous Program Power (RMS) is the maximum power that the speaker can handle considering a regular musical program using our recommended filters, this power can be used to define the optimum amplifier power to avoid a clean signal without clipping or saturation.
***Max Peak Power is the maximum power operation for the speaker, this power is allowed just for a few fractions of a second, usually found just on the peaks of the music. Keeping this power for a little longer timer will damage the speaker.


Equivalent Volume Vas 62.37 l
Excursion (mathematical)*** Xmax 6.00 mm
Free Air Resonance Fs 57.2 Hz
Mechanical Factor Qms 10.87
Electrical Factor Qes 0.37
Total Factor Qts 0.36
Cone Area Sd 585 cm²
Mechanical Mass Mms 59.32 g
Bl Factor Bl 17.27 Tm
Dc Resistance Re 5.2 Ohms
Inductance Le 0.963 mH at 1 kHz
Mechanical Mass Without Air Mmd 51.31 g
Mechanical Compliance Cms 0.130 mm/N

***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Magnetic Gap Depth/4

12MB1500FT Impedance


Overall Diameter 12.40” (315 mm)
Front Mount Baffle Cutout 11.18” (284 mm)
Mounting Depth 5.24”(133 mm)
Overall Depth 5.87”(149 mm)
Net Weight 16.32 Lbs (7.4 kg)
Shipping Weight 18.08 Lbs (8.2 kg)
Carton Dimensions W x L x H 13.19”x 13.19” x 6.90”
(335 x 335 x 170mm)

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