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Hertz SPL Show D-Class 4-Channel Amplifier - SP 4.500

Model # SP 4.500
Abt # SP4500
UPC # 8018823139922
  • Advanced D-Class Technology
  • 600W Total Power
  • IP55 Aluminum Chassis
  • Universal Speakers Simulators
  • 4, 3, 2 Channel Modes
  • Black Finish
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Hertz SP4.500 SPL Show D-Class 4-Channel Amplifier

SP 4.500 features Hertz ADC (Advanced D-Class) output stage, reaching up to 87% efficiency and delivering an impressive power rating of 90 x 4 (4Ω) W RMS or 300 W x 2 (4Ω) W RMS when bridged, with an ultra-compact size of 192.7 (7.58) x 130 (5.1) mm (in.) x 49 (1.9). Being ultra-compact with impressive power, SP 4.500 is the ideal choice for Motorcycle applications and for under-seat in sports cars and behind-seat installations in trucks.

Key Features

  • ADC (Advanced D-Class)
    Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage
  • USS (Universal Speakers Simulator)
    USS (Universal Speakers Simulators) allows SP 4.500 to work with head units featuring the “speaker load detection” circuit
  • Ultra Compact
    90 x 4 RMS (4Ω) with ultra-compact size (192.7 x 130 x 49 mm)
  • IP55
    IP55 aluminum chassis for maximum protection against humidity and external agents
    • Water Jet Resistant
    • Vibration Proof
    • Corrosion Resistant
    • Salt Fog Proof

Features

  • Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage.
  • USS (Universal Speakers Simulators) allows SP 4.500 to work with head units featuring the “speaker load detection” circuit.
  • 90 W RMS x 4 (4Ω) with ultra-compact size: 192.7 x 130 x 49 / 7.59 x 5.12 x 1.93 (mm/inch)
  • IP55 aluminum chassis for maximum protection against humidity and external agents.
  • No cooling fan to prevent internal accumulation of dirt.
  • Sealed power cord, line inputs and speaker outputs to prevent oxidation.
  • Crossover filters and controls on a single side to facilitate calibration when the product is installed.
  • Balanced fully-differential high-noise rejection inputs.
  • ART (Automatic Remote Turn-On/Off) automatically turns on/off the amplifier when the OEM head-unit turns on/off (can be enabled/disabled).
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Frequently Asked Questions

  • The amplifier offers a 4-channel output delivering 90 watts RMS per channel at 4 ohms, or 300 watts RMS into 2 ohms when bridged. This flexible configuration suits various speaker setups and helps optimize sound performance.
  • Utilizing Advanced D-Class (ADC) technology, the amplifier achieves up to 87% efficiency, minimizing energy loss and heat generation. This ensures reliable high power output with a compact size and improved energy use.
  • The amplifier features a robust IP55-rated aluminum chassis that offers strong protection against humidity, dust, and other external elements. It also includes sealed power cords, line inputs, and speaker outputs to prevent oxidation, ensuring durability in harsh conditions.
  • Yes, the amplifier is equipped with balanced fully-differential inputs that provide high noise rejection. This design helps reduce unwanted noise and interference, ensuring clean and clear audio signal reproduction.
  • It includes an Automatic Remote Turn-On/Off (ART) feature that detects when the connected head unit powers on or off, automatically activating or deactivating the amplifier accordingly. This can be enabled or disabled based on user preference for convenience and energy savings.