- Carbon fiber reinforced paper cone
- Square Aluminum winding wire (ALR)
- Great option for powerful 2-way systems
- The 15FPM is a high efficiency, (98 dB 1watt / 1 meter) 15-inch woofer with incredibly linear frequency response characteristics. The 15FPM uses a lightweight, but strong, carbon fiber loaded cone assembly along with a high excursion triple roll constant geometry surround. Cone material was specifically developed with 2-way or multi-way application in mind. The 15FPM has extended
- mid frequency range, providing possibility for cross overs at higher frequencies.Power HandlingAt the core of the 15FPM is it’s voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures in excess of 250°C, well beyond the thermal requirements of modern professional audio systems. The coil is wound on the outside
- of the former. Winding material is aluminum ribbon, material that provides ideal transient response. REDCATT has implemented a silicone spider design to ensure long term Fs memory, consistency and diminish anomalies associated with spider deterioration. The sealed spider works as a air pump and pushes the air trough out motor to increase heat transfer and cooling of the parts.
General specs Nominal Diameter: 15 in. Rated Impedance: 8 Ohm Power handling AES Power: 1,000 Watts Program Power: 2,000 Watts Voice Coil Diameter: 4 in. Winding wire: CCAW Former: kapton Winding height: 21 mm T/S Parameters Resonant frequency: 41 Hz Re: 5.2 ohm Qes: 0.38 Qms: 8.07 Qts: 0.36 Vas: 134.9 liters Sd: 908 cm2 Mms: 126.6 grams Bl: 21.3 Le: 1.17 mH Sensitivity: 97.87 dB Design details Surround Material: Fabric Cone material: Paper Spider: Nomex Plate thickness: 12 mm Peak to peak linear cone Displacement 15.4 mm Overall diameter: 392 mm Bolt circle diameter: 373 mm Baffle cutout dia.: 360 mm Number of mounting holes: 8 Depth (flange to rear): 150 mm Net weight: 12 kg Ordering codes: 8 ohm version: 15FPMX8-063 Recone kits: Download: Spec download 2D drawing 3D model
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PRODUCT CODE: 15FPMX8-063
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--- ENCLOSURE RECOMMENDATIONS ---
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ENCLOSURE RECOMMENDATIONS: 15FPMX8-063
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Driver: 15FPMX8-063 (15FPM) — 15" Mid-Woofer
Key T/S: Fs=41.0Hz, Qts=0.36, Vas=134.9L, Sens=97.87dB
Power: AES 1000W / Cont 2000W / Peak 4000W
Xmax=4.50mm, Sd=908.0cm², Bl=21.3T·m
RECOMMENDED ENCLOSURE TYPE: Bass Reflex (Vented)
PORT RECOMMENDATION: Slot port (full-width or L-shaped internal duct) — provides large cross-sectional area needed for high air displacement; reduces port noise at high SPL
a) High SPL
Net Volume: 105 liters
Tuning (Fb): 47 Hz
Est. -3dB: 43 Hz
HP Filter: 39 Hz (24dB/oct recommended)
Round Port: 100mm dia × 29mm long
Slot Port: 288mm W × 60mm H × 117mm L
Port Velocity: 15.4 m/s
Notes: Strong mid-bass impact, reduced cone excursion, maximum output
b) Balanced Response
Net Volume: 120 liters
Tuning (Fb): 41 Hz
Est. -3dB: 38 Hz
HP Filter: 31 Hz (24dB/oct recommended)
Round Port: 100mm dia × 40mm long
Slot Port: 288mm W × 60mm H × 141mm L
Port Velocity: 13.5 m/s
Notes: General-purpose PA/subwoofer, even response, good transient behavior
c) Extended Low Frequency
Net Volume: 145 liters
Tuning (Fb): 36 Hz
Est. -3dB: 31 Hz
HP Filter: 24 Hz (24dB/oct recommended)
Round Port: 100mm dia × 53mm long
Slot Port: 288mm W × 60mm H × 170mm L
Port Velocity: 11.7 m/s
Notes: Deep bass extension, requires proper system protection below tuning
--- Summary ---
The 15FPMX8-063 is a 15-inch high-output mid-woofer driver designed for professional 2-way and multi-way systems requiring high sensitivity (98 dB 1W/1m) and controlled low-frequency behavior. The driver uses a balanced motor-suspension design that provides good cone control while maintaining usable output across its operating bandwidth.
In bass reflex enclosures, the driver performs best in net internal volumes of 105 to 145 liters, tuned between 36 and 47 Hz. This alignment provides a balanced combination of low-frequency extension, cone control around resonance, and efficient port loading. Lower tuning improves deep bass extension but increases excursion below tuning, requiring appropriate high-pass filtering. Higher tuning increases sensitivity and output in the upper bass region while improving mechanical control.
The driver is intended for use with high-power amplification (approx. 1000 W AES / 2000 W continuous) and DSP control. A high-pass filter in the range of 24–39 Hz is recommended depending on enclosure tuning, along with proper limiting to manage thermal and mechanical stress. Typical operating bandwidth is 31–1500 Hz, covering bass through upper-mid frequencies for direct integration with a compression driver or tweeter in a two-way or multi-way system.
This design is particularly effective in single or multi-driver bass reflex systems used in professional two-way and multi-way PA systems, powered monitors, and compact bass-reflex enclosures, where extended bandwidth, controlled distortion across the full operating range, and versatile system integration are required.
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