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STW-350F-188PR01-04
Technical Highlights
- Power of over 3,500 watts, impedance 2x8 ohms, efficiency.
- 7.4" voice coil, FEA-optimized ferrite motor, 90mm excursion.
- Frequency range 10–500 Hz, low distortion, 188mm excursion.
- More technical details
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Compatible with STW-350F-188PR01-04
STW-350F-188PR01-04 by Peerless by Tymphany
The STW-350F-188PR01-04 is a 15 inch (38 cm) Subwoofer from Peerless by Tymphany with dual 8-Ohm voice coils (D8) and a voice coil diameter of 188 mm. The internal, FEA-optimized ferrite magnet structure, two large aluminum short-circuit rings, and extensive voice coil ventilation are key design features. The performance specifications include 3,500 Watts RMS and 5,000 Watts maximum, with a sensitivity of 88.7 dB (2.83 V/1 m) and a frequency response of 10 to 500 Hz. Mechanical parameters include a maximum linear excursion of ±10.4 mm and a mechanical excursion of over 90 mm peak-to-peak; the magnet gap is 36 mm long, the voice coil is 57 mm, with 45.5 mm excursion before significant BL loss. The construction uses a diaphragm made of paper/carbon fiber, a rubber surround, copper voice coil wire, and a fiberglass former in an aluminum die-cast basket with a ferrite magnet. For mounting, there are front and rear mounting points with M6 x 30 threads. The dimensions are 38 cm overall outer diameter, 23.3 cm overall depth, and 34.8 cm cutout for the baffle with 8 mounting holes.
- 15 inch (38 cm) Subwoofer
- RMS power 3,500 Watts
- Maximum load capacity 5,000 Watts
- Impedance D8 (2x 8 Ohm)
- Sensitivity 88.7 dB (2.83 V/1 m)
- Frequency response 10 to 500 Hz
- Voice coil diameter 188 mm
- Internal ferrite magnet structure
- FEA-optimized motor
- 2 aluminum short-circuit rings
- Dual voice coil
- Extensive voice coil ventilation
- Mechanical excursion over 90 mm (peak-to-peak)
- Maximum linear excursion Xmax ±10.4 mm
- Diaphragm paper/carbon fiber, surround rubber
- Voice coil wire copper, voice coil former fiberglass
- Basket aluminum die-cast, magnet material ferrite
- Front and rear mounting points, thread M6 x 30
- Overall outer diameter 38 cm
- Overall depth 23.3 cm
- Cutout for baffle 34.8 cm
- Mounting holes 8
- DC resistance Re 3.2 Ohm
- Voice coil inductance Le 3.31 mH
- Resonance frequency Fs 25.3 Hz
- Mechanical quality factor Qms 11.39
- Electrical quality factor Qes 0.5
- Total quality factor Qts 0.48
- Moving mass Mms 576.8 g
- Mechanical compliance Cms 0.068 mm/N
- Diaphragm area Sd 774.4 cm²
- BL product 24.18 Tm
- Equivalent volume Vas 58 l
- Magnet gap length 36 mm
- Voice coil length 57 mm
- Excursion 45.5 mm before significant BL loss
- Enclosure recommendation sealed 56 l, lower cutoff frequency -3 dB: 42 Hz
- Enclosure recommendation vented 82 l, port 200 cm² and 70 cm length, lower cutoff frequency -3 dB: 24.2 Hz
- Enclosure recommendation vented 130 l, port 180 cm² and 90 cm length, lower cutoff frequency -3 dB: 20 Hz

