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      Peerless by Tymphany STW-350F-188PR01-04 15" DVC High Power Subwoofer 8+8 Ohm

      € 495,83€ 599,95 Out of stock: 1 expected on 29-7-2022
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      Product description

      The Peerless STW-350F-188PR01-04 15" subwoofer produces deep and clean low-frequency reproduction with minimal distortion at high output levels. Designed from the ground up for output, performance, and reliability from the smallest enclosures, this driver with its 7.4" voice coil, internal magnet assembly, and outrageous excursion capability is a welcome departure from conventional subwoofer designs.

       

      Highlights

      • Massive 7.4" voice coil produces extraordinary low power compression
      • 2 Large aluminum shorting rings for better control and minimal harmonic distortion
      • Dual 8 ohm voice coil allow multiple wiring configurations including dual amplifier designs
      • Internal magnet structure provides more force from a smaller magnet
      • Lower Vas and Fs with higher BL for unmatched low end capability from the smallest enclosures
      • Extensive voice coil venting for quiet operation and increased power handling
      • Over 90mm of mechanical excursion prevents failure under the most demanding conditions

       

      Product details

      Peerless by Tymphany STW-350F-188PR01-04 15" High Power Subwoofer

       

      A New Generation of High Output, High Power Subwoofers

      The STW-350F-188PR01-04 subwoofer from Peerless was designed with performance and space in mind. This drivers offer deep and clean low-frequency reproduction with minimal distortion at high sound pressure levels. Unlike most subwoofers, the STW-350 can be mounted in a much smaller box than traditional subwoofers, which is enabled by the low Vas, high moving mass, and huge 7.4" (188 mm) voice coil. This driver also features a unique FEA-optimized ferrite motor, extremely robust suspension, and an incredible amount of venting which provides extraordinarily low power compression even when driven with over 3,500 watts of power. This driver is built for high-quality performance and long term reliability.

       

      Massive 7.4" Diameter x 2.25" Long Voice Coil

      With small enclosure subwoofer design high-moving mass is necessary, but it is difficult to apply mass where it can be put to work. For the STW-350F, it was put into the voice coil – this improves the performance of the driver by raising the motor force. Unlike a conventional motor design, Bl changes very slowly as function of voice coil displacement. A voice coil with large surface area also offers another benefit – power compression is practically non-existent. Because of this, the voice coil takes longer to heat up, resulting in uncompressed dynamic musical peaks.

       

      Internal Motor Design

      To drive a high moving mass a subwoofer needs a powerful motor. In most cases a more powerful motor is achieved with a larger magnet (which increases a driver cost, size, and weight) or using a more efficient neodymium magnet (which is unstable and loses strength as the temperature increases). An additional benefit of the STW-350F's giant coil is that Peerless was able to mount a ferrite motor inside of the voice coil. Conventional motor structures with the magnet outside of the motor lose 50% of their energy in stray fields, while a magnet on the inside of the voice coil will have 90% or better magnet utilization. The STW-350's motor is the best of both worlds: reliable and efficient.

       

      Long Coil + Long Gap = High Excursion

      With an Xmax of 10.4 mm this driver might not seem all that impressive. However, Xmax is just a physical measurement and not actually the limit of linear excursion (Xmax = (Voice Coil Length - Magnetic Gap Height) / 2). The STW-350F has a remarkably long 36 mm magnetic gap with a 57 mm long voice coil. Thanks to such extreme dimensions and a well controlled magnetic field, this driver is capable of 45.5 mm of excursion before any major loss in motor strength (Bl). In other words, this driver is capable of 90 mm (3.5") peak to peak excursion while still producing low distortion output.

       

      Front and Rear Mounting Points

      Due to the weight and extreme force that the STW-350F is capable of, Tymphany included rear mounting points on the back side of the frame. By attaching the rear of the frame to a brace in an enclosure, the baffle will be solidly tied to the sides walls increasing the rigidity of the enclosure while helping to support the overall weight of the STW-350F. These threaded holes accept M6 x 30 screws.

       

       

      Specifications

      Article number
      STW-350F
      Woofer Series
      STW Series
      Woofer Type
      Subwoofer
      Nominal Diameter
      15"
      Power Handling (RMS)
      3,500 Watts
      Power Handling (max)
      5,000 Watts
      Impedance (Z)
      8+8 ohms
      Sensitivity
      88.7 dB 2.83V/1m
      Frequency Response
      10 to 500 Hz
      Voice Coil Diameter
      7.4"
      DC Resistance (Re)
      3.2 ohms
      Voice Coil Inductance (Le)
      3.31 mH
      Resonant Frequency (Fs)
      25.3 Hz
      Mechanical Q (Qms)
      11.39
      Electromagnetic Q (Qes)
      0.5
      Total Q (Qts)
      0.48
      Diaphragm Mass Inc. Airload (Mms)
      576.8g
      Mechanical Compliance of Suspension (Cms)
      0.068 mm/N
      Surface Area of Cone (Sd)
      774.4 cm²
      BL Product (BL)
      24.18 Tm
      Compliance Equivalent Volume (Vas)
      2.05 ft.³
      Maximum Linear Excursion (Xmax)
      10.4 mm
      Cone / Diaphragm Material
      Paper / Carbon Fiber
      Surround Material
      Rubber
      Voice Coil Wire Material
      Copper
      Voice Coil Former
      Fiberglass
      Basket / Frame Material
      Cast Aluminum
      Magnet Material
      Ferrite
      Overall Outside Diameter
      15"
      Overall Depth
      9.17"
      Baffle Cutout Diameter
      13.7"
      # Mounting Holes
      8
      Sealed Volume
      2 ft.³
      Sealed F3
      42 Hz
      Vented Volume
      2.88 ft.³
      Vented F3
      24.2 Hz

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      Reviews

      5 from 5Based on 5 reviews
      Review this product
      5 of 5
      First time ordering overseas since this woofer is out of stock with every vendor I checked in the US. Arrived very quickly and in great condition. Don't have an enclosure built yet but under bench testing and impressed so far. Wouldn't hesitate to order from Soundimports again.
      By Andrew on 2 December 2021
      5 of 5
      No description was given
      By Alexandru A. on 11 May 2021
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      STW-350F-188PR01-04 15" DVC High Power Subwoofer 8+8 Ohm
      € 495,83
      € 599,95
      STW-350F-188PR01-04 15" DVC High Power Subwoofer 8+8 Ohm
      Out of stock: 1 expected on 29-7-2022
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