SP4.900

The Hertz SP 4.900 is a premium SPL Show Series 4-channel amplifier engineered for motorcycles, powersports vehicles, marine applications, and compact high-performance audio systems. Featuring Hertz’s advanced ADC (Advanced D-Class) technology, the SP 4.900 delivers exceptional power, efficiency, and sound quality in an ultra-compact IP55-rated chassis designed to withstand harsh environments.

Delivering up to 160 watts RMS x4 at 4 ohms or 500 watts RMS x2 bridged, the SP 4.900 combines impressive output with excellent thermal efficiency reaching up to 87%. Its compact footprint makes it ideal for Harley-Davidson fairings, under-seat installations, UTVs, and custom vehicle builds where space is limited but powerful clean audio is required.

Key Features:

• 4-channel Advanced D-Class amplifier
• 160W RMS x4 @ 4Ω
• 250W RMS x4 @ 2Ω
• 500W RMS x2 bridged @ 4Ω
• 1000W total RMS power
• Ultra-compact chassis design
• IP55 weather-resistant aluminum chassis
• Hertz ADC high-efficiency output stage
• Up to 87% efficiency
• USS (Universal Speaker Simulator) technology
• Built-in adjustable crossovers
• High-level and low-level inputs
• Sealed connectors for corrosion resistance
• Fanless cooling design

Performance Features:

• Frequency response: 10Hz–35kHz
• Signal-to-noise ratio: 105 dBA
• THD: 0.02%
• Damping factor: 200
• Adjustable high-pass and low-pass filters
• Bass boost control

Ideal Applications:

• Harley-Davidson motorcycle audio systems
• Powersports and UTV builds
• Marine audio systems
• Under-seat truck installations
• Compact high-performance systems