More about the product
The Hertz SP1.900 is a high-performance mono amplifier designed for delivering powerful and precise bass in car audio systems. It is part of the SPL Show range, built for enthusiasts who want strong low-frequency output with exceptional control and reliability. The amplifier combines advanced technology with a compact design, making it suitable for modern vehicles where space is limited.
The SP1.900 features an Advanced D-Class Output Stage (ADC), which ensures maximum efficiency and clean power delivery. This technology reduces heat generation and improves overall stability, allowing the amplifier to maintain consistent performance even under demanding conditions. The ADC design also helps achieve tight, controlled bass that remains accurate at all listening levels.
The amplifier includes a robust power supply and advanced protection circuits for thermal, overload, and short-circuit safety. These features ensure long-term reliability and protect connected components. Despite its compact size, the SP1.900 offers impressive tuning flexibility, making it easy to integrate into a wide range of audio setups.
Tuning options include a variable low-pass filter, subsonic filter, and bass boost, allowing precise adjustment to suit different music styles and system configurations. A remote level control is included for convenient bass adjustment from the driver’s seat, adding practicality to its performance capabilities.
Connectivity is straightforward, with high-level and low-level inputs for easy integration with factory or aftermarket head units. This makes the SP1.900 an excellent choice for upgrading existing systems without replacing the source unit.
While the SP1.900 excels at delivering clean and powerful bass, it is designed exclusively for subwoofer applications and does not power full-range speakers. For a complete system, pairing it with additional amplifiers for mids and highs is recommended.
Compact, efficient, and engineered for precision, the Hertz SP1.900 is ideal for those seeking impactful bass performance with advanced technology and reliable operation.
Technical details
- Brand
- Hertz
- Channels
- 1
- Impedance
- 1Ω
- Output Power
- 1000 W x 1 (1Ω)|1000 W x 1 (2Ω)|600 W x 1 (4Ω)
- Size
- 8.33 x 5.118 x 1.929 inches
- Total Power
- 1000W
- Weight
- 2.15kg
Look out for Bankstown Sound Recommendations
The Hertz SP1.900 is recommended for those who want strong, controlled bass with advanced efficiency technology. It suits enthusiasts upgrading factory systems or building custom setups where space is limited. Compared to basic amplifiers, it offers superior tuning flexibility and cleaner output. However, it is designed only for subwoofers and does not power full-range speakers, so pairing with additional amplifiers for mids and highs is necessary. Ideal for compact installations that require precision and reliability.
Why Choose Bankstown Sound for Your Car Audio & Tech Upgrades
At our Bankstown Sound store and workshop in Sydney, our team ensures every car and auto audio installation and upgrade starts with an understanding of how you use your car. Our team works with you to understand your driving habits, the features you rely on, and the problems you’re trying to solve.
Most factory setups are built to broad standards and often lack the clarity or seamless connectivity required for how people actually drive. That’s why we focus on modernising your dashboard and audio performance based on how you use your vehicle.


