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Peerless by Tymphany

STW-350F-188PR01-04

15" (38cm) Subwoofer

2 Reviews

699,00€
699,00€ 699,00€
incl. VAT , possibly plus shipping

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Highlights

  • Power of over 3,500 watts, impedance 2x8 ohms, efficiency.
  • 7.4" swing coil, FEA-optimized ferrite motor, 90mm deflection.
  • Frequency range 10–500 Hz, low distortion, 188mm displacement
Seen more cheaply Personal Offer
brand: Peerless by Tymphany
Delivery time:
Available for delivery in 1-4 days
Number:
Piece
Watt RMS:
3500
Subwoofer Type:
ferrite
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699,00€
699,00€ 699,00€

The 15-inch subwoofer STW-350F-188PR01-04 from Peerless produces deep and clean bass reproduction with minimal distortion at high output levels. This driver has been designed from the ground up for power, performance, and reliability from the smallest enclosures, and with its 7.4-inch voice coil, internal magnet arrangement, and outrageous excursion, it is a welcome departure from conventional subwoofer designs.

The subwoofer STW-350F-188PR01-04 from Peerless has been designed with performance and space considerations in mind. These drivers provide deep and clean bass reproduction with minimal distortion at high sound pressure levels. Unlike most subwoofers, the STW-350 can be mounted in a much smaller enclosure than conventional subwoofers, which is made possible by the low Vas value, high moving mass, and the massive 188 mm voice coil. This driver also features a unique FEA-optimized ferrite motor, an extremely robust suspension, and incredible ventilation, allowing for exceptionally low power compression even at a power of over 3,500 watts. This driver is built for high-quality performance and long-term reliability.

Highlights:

  • Massive 7.4" voice coil generates an exceptionally low power compression
  • 2 large aluminum short-circuit rings for better control and minimal harmonic distortion
  • Dual 8-ohm voice coil allows for multiple wiring configurations including dual amplifier designs.
  • Internal magnetic structure provides more power from a smaller magnet.
  • Lower VAS and Fs with higher BL for unmatched low-end capabilities from the smallest enclosures.
  • Extensive voice coil ventilation for quiet operation and increased load capacity
  • Over 90 mm mechanical deflection prevents failure under the most demanding conditions.
Product Details:

  • 15" (38cm) Subwoofer from Tymphany by Peerless of the STW Series
  • Power consumption (RMS) 3,500 Watts
  • Load capacity (maximum) 5,000 watts
  • Impedance D8 (2x8Ohm)
  • Sensitivity 88.7 dB 2.83V/1m
  • Frequency response 10 to 500 Hz
  • Diameter of the vibrating coil 7.4".
  • Maximum linear displacement (Xmax): +- 10.4 mm

Dimensions: 

  • Overall outer diameter 38cm
  • Total depth 23.3cm
  • Sound hole diameter 34.8cm
  • Mounting holes 8

Case recommendation: 

  • Closed volume 56l
  • Lower cutoff frequency -3dB: 42 Hz
  • Allrounder: Ventilated volume 82l with 200cm² and 70cm length
  • Lower cutoff frequency -3dB: 24.2 Hz
  • Sub-bass: Ventilated volume 130l with 180cm² and 90cm length
  • Lower cutoff frequency -3dB: 20 Hz
Internal engine construction:
To drive a high moving mass, a subwoofer requires a powerful motor. An additional advantage of the giant coil of the STW-350F is that Peerless was able to incorporate a ferrite motor into the voice coil. Conventional motor structures with the magnet outside the motor lose 50% of their energy in stray fields, while a magnet on the inside of the voice coil has a 90% or better magnetic utilization. 
Long coil + long gap = high deflection:
The STW-350F has a remarkably long magnetic gap of 36 mm with a 57 mm long voice coil. Thanks to such extreme dimensions and a well-controlled magnetic field, this driver is capable of achieving a displacement of 45.5 mm before a significant loss of motor strength (Bl) occurs. In other words, this driver can achieve 90 mm (3.5") displacement from peak to peak!


Front and rear mounting points:
Due to the weight and the extreme force that the STW-350F can withstand, rear mounting points have been provided on the back of the frame at Tymphany. By attaching the back of the frame to a brace in a housing, the baffle is firmly connected to the side walls, thereby increasing the stiffness of the housing while also supporting the overall weight of the STW-350F. These threaded holes accommodate M6 x 30 screws.

Parameter: 

  • DC resistance (Re) 3.2 Ohm
  • Swinging coil inductance (Le) 3.31 mH
  • Resonance frequency (Fs) 25.3 Hz
  • Mechanical Q (Qms) 11.39
  • Electromagnetic Q (Qes) 0.5
  • Total Q (Qts) 0.48
  • Membran Masse Inc. Air Load (Mms) 576.8g
  • Moving mass of the membrane (Mmd)
  • Mechanical compliance of the suspension (Cms) 0.068 mm/N
  • Surface of the membrane (Sd) 774.4 cm²
  • BL Product (BL) 24.18 Tm
  • Compliance equivalent volume (Vas) 58l
  • Cone / Membrane Material Paper / Carbon Fiber
  • Surrounding material rubber
  • Wire material copper for spring coils
  • Swing Coil Form Fiberglass
  • Double oscillating coil
  • Basket/frame material aluminum casting
  • Ferrite magnetic material
The STW-350F-188PR01-04 from Peerless features a robust power handling of 3,500 Watts RMS and a maximum load capacity of 5,000 Watts. This impressive performance is made possible by the integrated 7.4-inch voice coil and the FEA-optimized ferrite motor, which ensures exceptionally low distortion even under high load. Additionally, the specially designed voice coil ventilation contributes to the longevity and stability of performance. The overall concept of this subwoofer is based on utilizing a compact design with high efficiency, making it ideal for demanding applications that rely on powerful bass.
The voice coil of the STW-350F-188PR01-04 subwoofer is a powerful 7.4-inch component. It is made of copper wire and is wound on a fiberglass former to ensure high thermal stability. The long magnetic gap of 36 mm and the 57 mm long coil allow for extremely large displacements, which provide exceptionally deep bass performance. This design minimizes heat generation and maximizes efficiency. Thanks to the internal magnet structure that optimizes the load, the subwoofer achieves a displacement of up to 90 mm, which is sufficient for even the most demanding audio applications.
The frequency response of the Peerless STW-350F-188PR01-04 ranges from 10 Hz to 500 Hz, making it ideal for reproducing deep bass to higher sub-bass frequencies. With a resonance frequency (Fs) of 25.3 Hz and a total Q value (Qts) of 0.48, this subwoofer delivers precise and powerful bass that is optimized for use in home and vehicle audio systems. The combination of a low Vas value, high sensitivity of 88.7 dB, and optimal mechanical load capacity ensures that the driver operates reliably even under extreme conditions.
The Peerless STW-350F-188PR01-04 has an overall outer diameter of 38 cm and a mounting depth of 23.3 cm, making it suitable for compact enclosure applications. The sound wall cutout has a diameter of 34.8 cm. With 8 mounting holes, secure attachment to the enclosure wall is guaranteed. These specific dimensions allow for flexible integration into various enclosure types and ensure high processing quality of the bass tones. The stable front and rear mounting points enable secure installation and guarantee that the mounting can withstand the stresses of high sound loads.
For the STW-350F-188PR01-04, a closed volume of 56 liters is recommended, which allows for a lower cutoff frequency of about 42 Hz. For more bass, a vented enclosure with 82 liters, an opening of 200 cm², and a length of 70 cm could be used, which reaches -3dB at 24.2 Hz. Those who want to go even deeper could implement a sub-bass enclosure with a volume of 130 liters and an opening of 180 cm², 90 cm long, which rolls off at 20 Hz. These options maximize performance in the low-end range with minimal space requirements.
The dual voice coil of the STW-350F-188PR01-04 consists of two 8-ohm coils that allow for flexible wiring configurations. This arrangement enables parallel or series connections, facilitating adaptation to various amplifier designs, including those with dual amplifiers. The advantage lies in the increased efficiency and power optimization of the subwoofer. By changing the connection configuration, the impedance can be adjusted to meet different requirements, which is particularly beneficial for complex audio systems that expect individual performance settings.
The STW-350F-188PR01-04 from Peerless consists of an aluminum die-cast frame that ensures stability and durability. The diaphragm is made from a paper-carbon fiber combination that offers a good strength-to-weight ratio and improves response speed. The rubber surround maximizes the flexibility and longevity of the diaphragms. The voice coils are made of copper on a fiberglass former, which supports heat dissipation and thus improves performance under continuous load. This combination of materials allows the subwoofer to operate reliably and precisely even under high stress.
The STW-350F-188PR01-04 features a well-thought-out ventilation system consisting of an extensive voice coil ventilation that ensures quiet operation and increased load capacity. This ventilation structure reduces the heat development of the voice coils and thereby minimizes electrical damping. The architecture allows for exceptionally high performance with low power compression even at peak loads of over 3,500 watts. Through the controlled airflow within the enclosure, the components of the subwoofer maintain their efficiency even under challenging conditions, which extends the performance and lifespan of the subwoofer.
The Peerless STW-350F-188PR01-04 has a resonance frequency (Fs) of 25.3 Hz and a DC resistance (Re) of 3.2 Ohms. The voice coil inductance (Le) is 3.31 mH, while the mechanical Q factor (Qms) is 11.39, the electromagnetic Q factor (Qes) is 0.5, and the total Q factor (Qts) is 0.48. The diaphragm mass including air load (Mms) is 576.8 g. With a moving mass of the diaphragm (Mmd) and a surface area of 774.4 cm², the subwoofer is designed to efficiently handle low frequencies. The BL product is an impressive 24.18 Tm, a sign of the powerful motor structure.
The internal motor of the STW-350F-188PR01-04 consists of a FEA-optimized ferrite motor system that is uniquely integrated into the voice coil. By being placed internally in relation to conventional external solutions, the magnet achieves an efficiency increase of over 90% by minimizing stray field losses. This design allows the subwoofer to operate with maximum efficiency and drive the significant moving mass required for solid bass. The overall stability of the components, even at high excursions, is further supported by the thoughtful design.

Audio Components BV
Koen Pronk, Martijn Ouwerkerk
Peizerweg 97a
9727AJ Groningen
Netherlands

Contact: info@audio-components.com"

Customer Reviews

Based on 2 reviews
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Yves V.

It is a superb pièce ! I use it on a basse reflex 90 liters. The physical bass 20-35 hz is strongly improved in comparison to the previous loudspeaker which was a b&c 15bg100. The spl is lower in the 40-100hz in counterpart. It seems less precise also. Overall it is a great subwoofer for sub bass

Y
Yves V.

It is a superb pièce ! I use it on a basse reflex 90 liters. The physical bass 20-35 hz is strongly improved in comparison to the previous loudspeaker which was a b&c 15bg100. The spl is lower in the 40-100hz in counterpart. It seems less precise also. Overall it is a great subwoofer for sub bass

Product Specifications

Manufacturer

Peerless by Tymphany

Product type

15" (38cm) subwoofer

Features

  • Highlights

    • Power of over 3,500 watts, impedance 2x8 ohms, efficiency.
    • 7.4" swing coil, FEA-optimized ferrite motor, 90mm deflection.
    • Frequency range 10–500 Hz, low distortion, 188mm displacement

weight

32.0 kg

Technical data

Watt RMS Load Capacity

3500

configurators

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Buy Peerless STW-350F-188PR01-04 Subwoofer online at a low price with lowest price guarantee

Discover the Peerless STW-350F-188PR01-04 subwoofer at Masori.de and benefit from outstanding low-frequency reproduction. With an impressive 3,500 watts RMS power and a maximum load capacity of 5,000 watts, this 15-inch subwoofer delivers powerful sound without distortion even at high output levels. The dual 8-ohm voice coil allows for flexible wiring configurations, ideal for dual amplifier designs. The massive 7.4 voice coil ensures exceptionally low power compression, while Peerless's internal magnet structure delivers more power from a smaller magnet. Take advantage of the Masori lowest price guarantee and secure this powerful subwoofer at the best price.

High-performance 7.4-inch voice coil for minimal power compression

The Peerless STW-350F-188PR01-04 subwoofer is equipped with a 7.4-inch voice coil that ensures exceptionally low power compression. This massive voice coil can handle extreme power without compromising the clarity of the bass. Compared to smaller voice coils, the 7.4-inch version offers a larger surface area that dissipates heat better, thus enabling more stable performance at high amplifier power levels. This is particularly important for demanding audio setups that require consistently high power. The combination of high inductance and large voice coil diameter ensures precise and distortion-free bass reproduction, even under extreme conditions.

Optimized internal magnet structure for maximum force utilization

The internal ferrite motor of the Peerless STW-350F-188PR01-04 subwoofers enables efficient use of the magnetic field. Through the FEA-optimized magnet arrangement, this subwoofer achieves a 90% or better magnetic utilization, in contrast to conventional designs where 50% of the energy is lost in stray fields. This optimized structure provides a stronger driving force per magnet unit, resulting in more precise and powerful bass reproduction. The high BL productivity of 24.18 Tm supports this performance by providing strong magnetic feedback that improves control over the diaphragm movement and maximizes the overall performance of the subwoofer.

Impressive frequency response from 10 to 500 Hz for versatile bass tones

With a frequency response of 10 to 500 Hz, the Peerless STW-350F-188PR01-04 subwoofer covers a wide range of low frequencies. This extended bandwidth ensures that both deep bass and higher undertones are reproduced accurately, making it ideal for various music genres and professional car audio setups. The low cutoff of 10 Hz allows for the reproduction of extremely low frequencies that enhance the driving experience, while the upper limit of 500 Hz ensures that no distortion occurs in the audible range. Such a frequency range offers flexibility in adjusting the sound profile, allowing you to optimally tune the subwoofer to your specific needs.

Robust 188 mm voice coil for exceptional displacement

The Peerless STW-350F-188PR01-04 subwoofer features an impressive maximum linear excursion (Xmax) of ±10.4 mm, allowing for a peak-to-peak excursion of 90 mm. This enormous excursion enables the subwoofer to move large volumes of air, thus producing deep, powerful bass without distortion. The high excursion is particularly advantageous for sound systems that require intense bass performance, whether for rock, hip-hop, or other bass-intensive genres. By combining a long coil and magnetic slot, the subwoofer can perform this extreme movement in a controlled and efficient manner, maintaining sound quality even at maximum excursion.

High-quality materials for long-lasting reliability

The Peerless STW-350F-188PR01-04 subwoofer uses premium materials that guarantee durability and reliable performance. The diaphragm is made from a combination of paper and carbon fiber, providing both lightness and strength to enable precise vibrations. The rubber surround ensures a flexible yet stable suspension of the diaphragm. The voice coil wire is made from high-quality copper, which ensures low electrical resistance and efficient power transfer. The fiberglass voice coil former seamlessly connects with the aluminum die-cast basket, enhancing the structural integrity and vibration characteristics of the subwoofer to ensure consistent and reliable low-frequency reproduction.

High impedance D8 (2x8 Ohm) for versatile amplifier connection

With an impedance of D8 (Dual-8 Ohm), the Peerless STW-350F-188PR01-04 subwoofer offers flexible connection options to various amplifiers. This dual impedance configuration allows you to wire the subwoofer either in parallel or in series, making it easier to adapt to different power requirements and system designs. Particularly suitable for complex car audio setups where multiple amplifiers or special wiring concepts are used, the Dual-8 Ohm configuration ensures that maximum power is utilized efficiently without compromising sound quality. This makes the subwoofer ideal for customizations and advanced audio installations.

Excellent HL of 88.7 dB for clear sound at high input voltages

The Peerless STW-350F-188PR01-04 subwoofer has a sensitivity of 88.7 dB at 2.83 V/1m, allowing for efficient sound reproduction at high input voltages. Higher sensitivity means that the subwoofer requires less power to achieve a higher sound pressure level, which is particularly advantageous in vehicles with limited space for amplifiers. This high sensitivity ensures that the subwoofer sounds clear and precise even with lower amplifier power, without unnecessarily consuming a lot of energy. This enables energy-efficient audio performance that optimizes both sound quality and system efficiency.

Compact dimensions with a 38 cm outer diameter and 23.3 cm depth

The Peerless STW-350F-188PR01-04 subwoofer impresses with its compact design, featuring an overall outer diameter of 38 cm and a total depth of 23.3 cm. These dimensions allow for easy integration into various vehicle enclosures without significant space requirements. The cutout for the speaker has a diameter of 34.8 cm and 8 mounting holes, providing flexible installation options so you can optimally adapt the subwoofer to the conditions of your vehicle. Thanks to its thoughtful size, the subwoofer fits into smaller enclosures, making it ideal for vehicles with limited space, without sacrificing powerful bass.

Versatile housing options for individual bass characteristics

The Peerless STW-350F-188PR01-04 subwoofer offers extensive enclosure recommendations to customize the bass characteristics. For a sealed enclosure design, a volume of 56 liters is recommended, allowing for precise and controlled bass reproduction with a lower cutoff frequency of 42 Hz. For versatile performance, a vented volume of 82 liters with an area of 200 cm² and a length of 70 cm is ideal for covering frequencies down to 24.2 Hz. For deep bass, a vented volume of 130 liters with an area of 180 cm² and a length of 90 cm is optimal for reaching frequencies down to 20 Hz. These versatile enclosure options ensure that you can perfectly match the subwoofer to your acoustic needs and the available space in your vehicle.

Extremely robust suspension for long-term performance

The Peerless STW-350F-188PR01-04 subwoofer is equipped with an extremely robust suspension that ensures durability and reliability. The mechanical compliance of the suspension (Cms) of 0.068 mm/N provides a strong yet flexible attachment that precisely controls the movements of the diaphragm. This sturdy suspension prevents unwanted resonances and ensures consistent sound quality, even at high output levels. The combination of high-quality rubber material and precise construction guarantees that the subwoofer maintains its performance even under the most demanding operating conditions, delivering reliable sound over the long term.

Outstanding moving mass Mms of 576.8 g for powerful bass reproduction

With a moving mass (Mms) of 576.8 g, the Peerless STW-350F-188PR01-04 subwoofer offers significant inertia, which ensures powerful and precise bass reproduction. A high moving mass allows the subwoofer to efficiently move large volumes of air, resulting in deep and assertive bass. This characteristic is particularly important for reproducing intense bass lines and dynamic music pieces, where a fast and accurate response of the diaphragm is required. The high Mms combined with a strong BL force of 24.18 Tm ensures that the subwoofer delivers precise and distortion-free bass even at high excursions.

Wide frequency coverage from 10 to 500 Hz for versatile applications

The Peerless STW-350F-188PR01-04 subwoofer covers a wide frequency range from 10 to 500 Hz, making it suitable for various application scenarios. This broad coverage allows you to reproduce both deep bass and mid-tones clearly and in detail, enabling versatile use across different music genres and car audio setups. The ability to handle frequencies up to 500 Hz ensures that the subwoofer delivers high sound quality even in demanding environments, without distorting in the audible range. This makes it an ideal choice for those seeking a comprehensive and flexible bass solution.

Parameter Overview: Technical Details at a Glance

The Peerless STW-350F-188PR01-04 subwoofer is characterized by precise technical parameters that underscore its outstanding performance. With a DC resistance (Re) of 3.2 ohms and a voice coil inductance (Le) of 3.31 mH, it offers optimal electrical efficiency. The resonance frequency (Fs) of 25.3 Hz and the total Q (Qts) of 0.48 ensure balanced bass reproduction with minimal distortion. The combination of these parameters allows for precise tuning of the amplifier and optimal performance in various enclosure configurations, making the subwoofer flexible and powerful.

Vas value of 58 liters: Optimal housing adjustment

The compliance equivalent volume (Vas) of 58 liters for the Peerless STW-350F-188PR01-04 subwoofer is crucial for selecting the appropriate enclosure type. A low Vas value allows for the integration of the subwoofer into compact enclosures without compromising bass performance. This offers greater flexibility in installation, as you can optimally use the subwoofer in various vehicle types and enclosure sizes. A low Vas also supports precise bass reproduction, as the diaphragm movement is better controlled, resulting in clearer and more defined deep sound.