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  FV25HP Direct Servo subwoofer
Dual 15" ported audiophile sub with 900WRMS amplifier
Performance & Specifications

FV25HP has three port openings tuned to 13hz . In the following is the frequency response when extension filter is set to 12hz and low damping.

sealed response

Fig 1.0 - FV25 Frequency response chart with line-in 12hz low damping and two ports open

sealed response

Fig 1.1 - FV25HP Frequency and phase response chart with line-in 12hz low damping and two ports open

Figure 1.1 has the phase response added. FV25HP also has a rumble filter with -6db @10hz. This is suitable for playing opening scene in movie Edge of Tomorrow and 3 port operation to control cone excursion in the subsonic range. Fig 1.2 shows the frequency response of this rumble filter.

Fig 1.2 - FV25HP Frequency response of the selectable rumble filter


One important aspect of getting a correct integration is phase alignment. We have written a guide on how to achieve a phase aligned subwoofer. More >


Driver Dual 15" high excursion with custom sensing coil
Driver materials One piece black anodized dish aluminum with rubber surround
  Cast aluminum basket
  Multiple aluminum flux de-modulation shorting rings
Amplifier 1800W RMS Hypex class-D patented servo controlled
Dimensions 21"(W) x 41-1/2" (H )x 22"(D) - (24" D with grille and heatsink knobs)
Shipping Weight 230 lbs (210lbs gross)
Frequency Response 12 - 200 Hz (-4db@12hz) with LFE input
12 - 90 Hz (-4db@12hz) with LINE IN input
Multi-tune 12.5hz (3 port)
Crossover slope Selectable 12 or 24 dB / octave (PEQ)
Crossover range (Low pass) 25 - 100 Hz
Rumble Filter (High pass ) 12 Hz 18 dB / octave (-6db @10hz)
Phase adjustment 0 - 180 degrees continuously variable
Bass damping factor settings high (Q=0.5), med (Q=0.7), and low (Q=1.1)
Finishes Available in black matte paint or black oak vinyl
Warranty 5 years warranty on driver and 3 years on electronics
  45 day home trial with customer paying one-way return shipping