Description
Hertz SS 15 D2 – 15″ SPL Car Subwoofer Dual 2Ω (2400W Peak / 1200W RMS)
Hertz SS 15 D2 – High Power SPL Subwoofer Designed for Extreme Bass Performance
The Hertz SS 15 D2 is a powerful 15-inch SPL competition car subwoofer engineered for enthusiasts who demand extreme bass output, high excursion capability and excellent sound quality.
Designed for Bass Wars and high-pressure SPL applications, the SS 15 D2 combines a massive ferrite motor structure, reinforced suspension system and a high-power dual voice coil design to deliver outstanding low-frequency performance.
With 1200W RMS continuous power handling and 2400W peak power capability, this subwoofer is built to handle serious amplifier power while maintaining reliability during intensive use.
Extreme SPL Performance & High Power Handling
The Hertz SS 15 D2 features a large 380 mm (15″) cone designed to move significant air volume and produce powerful bass pressure.
Power handling:
- 1200W RMS Continuous Power
- 2400W Peak Power
- Dual Voice Coil Configuration: 2 + 2 Ω
This configuration provides flexible wiring options for powerful SPL amplifier setups.
High Performance Dual Voice Coil Design
The SS 15 D2 uses a robust:
- 75 mm (3″) dual voice coil
- 4-layer winding configuration
- Ventilated voice coil former
Advantages:
- Improved thermal management
- Higher power handling
- Better reliability under heavy loads
- Stable performance during SPL competitions
The advanced coil design allows the subwoofer to manage extreme power levels while maintaining controlled bass reproduction.
Reinforced Suspension System
For high SPL applications, mechanical durability is essential.
The Hertz SS 15 D2 includes:
Progressive Double-Layer Spider
Provides:
- Consistent performance over time
- Controlled cone movement
- Increased mechanical strength
- Improved excursion control
Multilayer Foam Surround
Designed for:
- High cone excursion
- Increased air movement
- Maximum SPL output
High Excursion Motor System
The oversized ferrite magnet assembly provides:
- Strong magnetic control
- Improved cone accuracy
- High output capability
Technical excursion:
- Xmax: 15.4 mm
- X-mech: 10.6 mm
This allows the woofer to produce powerful low-frequency output while maintaining control.
Lightweight High Sensitivity Cone Design
The cone is manufactured from:
- Non-pressed paper
- Added cotton fiber reinforcement
Benefits:
- Excellent stiffness-to-weight ratio
- Fast response
- Increased efficiency
- Natural bass reproduction
The result is a balance between extreme SPL capability and musical bass performance.
Premium High Current Connections
For demanding SPL installations, the SS 15 D2 features:
- Nickel-plated push terminals
- Supports cables up to 12 AWG
- Secure high-current connection
Designed for powerful amplifier systems where current delivery is critical.
Key Features
✅ 15-inch (380 mm) SPL subwoofer
✅ 2400W peak power handling
✅ 1200W RMS continuous power
✅ Dual 2Ω voice coil (2 + 2Ω)
✅ 75 mm high-power voice coil
✅ Reinforced double-layer spider
✅ High excursion suspension system
✅ Oversized ferrite magnet motor
✅ Cotton fiber reinforced paper cone
✅ Designed for SPL competition builds
Technical Specifications
| Specification | Value |
|---|---|
| Subwoofer Size | 15″ (380 mm) |
| Type | SPL Subwoofer |
| Power Handling Peak | 2400W |
| RMS Power Handling | 1200W |
| Voice Coil Type | Dual Voice Coil |
| Impedance | 2 + 2 Ω |
| Voice Coil Diameter | 75 mm (3″) |
| Sensitivity | 88 dB SPL |
| Xmax | 15.4 mm |
| X-mech | 10.6 mm |
| Frequency Resonance (Fs) | 31 Hz |
| Equivalent Volume (Vas) | 68.83 L |
| Total Q Factor (Qts) | 0.61 |
| Electrical Q Factor (Qes) | 0.66 |
| Mechanical Q Factor (Qms) | 7.4 |
Recommended Applications
The Hertz SS 15 D2 is ideal for:
- SPL competition vehicles
- Bass Wars builds
- High-power car audio systems
- Custom ported enclosures
- Extreme bass enthusiasts
- Professional sound pressure installations
Recommended Amplifier Power
For maximum performance, pair the Hertz SS 15 D2 with a powerful mono amplifier capable of delivering:
- 1000–1200W RMS @ correct impedance
A properly designed enclosure and sufficient electrical system are essential to achieve the full potential of this SPL subwoofer.
Why Choose Hertz SS 15 D2?
The Hertz SS 15 D2 combines extreme power handling, durable construction and advanced SPL engineering.
With a massive 15-inch cone, reinforced suspension and high-power dual voice coil design, it delivers the deep, powerful bass output required for serious competition-level car audio systems.
Choose Hertz SS 15 D2 for extreme SPL performance, powerful bass pressure and uncompromising durability.
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