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Hertz SP 4.900 SPL Show 4-Channel Class D Amplifier (SP4900)
Product Description
Product Description
Hertz SP 4.900 SPL Show 4-Channel Class D Amplifier (SP4900)
The Hertz SP 4.900 packs serious output into an incredibly compact chassis, making it an excellent choice when space is limited but performance can't be compromised. Designed with Hertz's renewed Advanced D-Class (ADC) technology, this 4-channel Class D amplifier delivers up to 1000 watts of total power while reaching up to 87% efficiency. Whether it's powering a motorcycle audio system, fitting neatly under the seat of a sports car, or mounting behind the seat of a truck, the SP 4.900 is built to deliver clean, powerful sound without taking up valuable space.
High Power from an Ultra-Compact Amplifier
Small doesn't mean sacrificing performance. The Hertz SP 4.900 produces an impressive 160 watts RMS x 4 at 4 ohms or 250 watts RMS x 4 at 2 ohms. Need even more output? Bridge the amplifier to produce 500 watts RMS x 2 at 4 ohms, giving you the flexibility to drive powerful front speakers alongside a bridged subwoofer. It's like fitting the muscle of a much larger amplifier into a compact housing that measures just 211.6 x 130 x 49 mm.
Advanced D-Class Technology for Clean, Efficient Audio
At the heart of the Hertz SP 4.900 is the renewed Hertz ADC (Advanced D-Class) output stage. Designed for exceptional efficiency, it reaches up to 87% while maintaining outstanding sound quality. Low distortion of just 0.02% THD and a signal-to-noise ratio of 105 dBA help reproduce music with impressive clarity while significantly reducing EMI and RFI interference. The result is powerful, controlled audio that stays clean even at higher output levels.
Built for Motorcycles, Marine, and Powersports Applications
Why should harsh environments limit your audio system? The Hertz SP 4.900 is engineered for demanding conditions with an IP55-rated aluminum chassis that protects against humidity and external contaminants. The amplifier also features sealed power, line input, and speaker output connections to help prevent oxidation while maintaining reliable electrical contact in wet or high-vibration environments.
Its fanless cooling design eliminates internal dirt accumulation, while conformal coating on the circuit board helps protect against damage caused by internal condensation. These design features make the amplifier a dependable option for motorcycles, marine applications, and a wide range of powersports vehicles.
Simple Integration with Factory Audio Systems
The Hertz SP 4.900 is designed to integrate smoothly with both aftermarket and factory audio systems. Built-in USS (Universal Speakers Simulator) allows compatibility with OEM head units equipped with speaker load detection circuits, preventing unwanted muting from factory amplifiers. Automatic turn-on is supported through both remote signal detection and DC offset sensing on the speaker inputs, simplifying integration into modern vehicles.
Flexible Crossovers for Precise Sound Tuning
The versatile crossover section gives you complete control over your system setup. Independent high-pass and low-pass filters for both channel pairs are adjustable from 50 Hz to 5 kHz with a 12 dB per octave slope. An adjustable 45 Hz bass boost ranging from 0 to 8 dB allows additional low-frequency output when using the low-pass filter.
All crossover controls are conveniently located on one side of the amplifier, making system calibration easier even after the amplifier is mounted. The high-pass crossover can also optimize the performance of Hertz SPL Show NEO high-efficiency coaxial speakers for even greater system flexibility.
Reliable Protection for Long-Term Performance
The Hertz SP 4.900 includes multiple protection features designed to keep your system operating safely. Protection circuits guard against overheating and DC output conditions, automatically switching the amplifier into protection mode if necessary. Combined with its durable chassis and sealed construction, the amplifier is engineered to deliver dependable performance across a variety of demanding installations.
Compact Size with Maximum Versatility
The Hertz SP 4.900 supports 4-channel, 3-channel, and bridged 2-channel operation, giving you multiple configuration options for speakers and subwoofers. Despite its compact footprint, it delivers the power, efficiency, and flexibility needed for high-output audio systems where installation space is limited.
If you're looking for a compact amplifier that combines high RMS power, excellent efficiency, flexible tuning options, and rugged durability, the Hertz SP 4.900 offers a balanced solution built for demanding vehicle audio applications.
A Smart Choice for High-Performance Audio Systems
The Hertz SP 4.900 brings together compact dimensions, advanced Class D efficiency, versatile crossover controls, and reliable protection in one powerful amplifier. Its ability to deliver substantial power while fitting into tight spaces makes it an excellent solution for motorcycles, sports cars, trucks, marine, and powersports applications where every inch matters without compromising sound quality.
FAQs
- What is the total power output of the Hertz SP 4.900? The Hertz SP 4.900 delivers up to 1000 watts of total power, producing 160W x 4 RMS at 4Ω, 250W x 4 RMS at 2Ω, or 500W x 2 RMS when bridged at 4Ω.
- Can the Hertz SP 4.900 work with factory head units? Yes. It features built-in USS (Universal Speakers Simulator), speaker-level inputs, remote signal detection, and DC offset sensing for integration with many OEM audio systems.
- Is the Hertz SP 4.900 suitable for motorcycles and marine applications? Yes. Its IP55-rated aluminum chassis, sealed connections, conformal-coated circuit board, and fanless design make it well suited for motorcycles, marine, and powersports environments.
- What crossover adjustments are available? The amplifier includes adjustable high-pass and low-pass crossovers from 50 Hz to 5 kHz with a 12 dB/octave slope, along with adjustable 45 Hz bass boost from 0 to 8 dB.
- What speaker configurations does the Hertz SP 4.900 support? The amplifier supports 4-channel, 3-channel, and bridged 2-channel operation, allowing it to power multiple speakers, a bridged subwoofer, or a combination of both.
Features & Specs
Features & Specs
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Warranty
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Product Description
Product Description
Hertz SP 4.900 SPL Show 4-Channel Class D Amplifier (SP4900)
The Hertz SP 4.900 packs serious output into an incredibly compact chassis, making it an excellent choice when space is limited but performance can't be compromised. Designed with Hertz's renewed Advanced D-Class (ADC) technology, this 4-channel Class D amplifier delivers up to 1000 watts of total power while reaching up to 87% efficiency. Whether it's powering a motorcycle audio system, fitting neatly under the seat of a sports car, or mounting behind the seat of a truck, the SP 4.900 is built to deliver clean, powerful sound without taking up valuable space.
High Power from an Ultra-Compact Amplifier
Small doesn't mean sacrificing performance. The Hertz SP 4.900 produces an impressive 160 watts RMS x 4 at 4 ohms or 250 watts RMS x 4 at 2 ohms. Need even more output? Bridge the amplifier to produce 500 watts RMS x 2 at 4 ohms, giving you the flexibility to drive powerful front speakers alongside a bridged subwoofer. It's like fitting the muscle of a much larger amplifier into a compact housing that measures just 211.6 x 130 x 49 mm.
Advanced D-Class Technology for Clean, Efficient Audio
At the heart of the Hertz SP 4.900 is the renewed Hertz ADC (Advanced D-Class) output stage. Designed for exceptional efficiency, it reaches up to 87% while maintaining outstanding sound quality. Low distortion of just 0.02% THD and a signal-to-noise ratio of 105 dBA help reproduce music with impressive clarity while significantly reducing EMI and RFI interference. The result is powerful, controlled audio that stays clean even at higher output levels.
Built for Motorcycles, Marine, and Powersports Applications
Why should harsh environments limit your audio system? The Hertz SP 4.900 is engineered for demanding conditions with an IP55-rated aluminum chassis that protects against humidity and external contaminants. The amplifier also features sealed power, line input, and speaker output connections to help prevent oxidation while maintaining reliable electrical contact in wet or high-vibration environments.
Its fanless cooling design eliminates internal dirt accumulation, while conformal coating on the circuit board helps protect against damage caused by internal condensation. These design features make the amplifier a dependable option for motorcycles, marine applications, and a wide range of powersports vehicles.
Simple Integration with Factory Audio Systems
The Hertz SP 4.900 is designed to integrate smoothly with both aftermarket and factory audio systems. Built-in USS (Universal Speakers Simulator) allows compatibility with OEM head units equipped with speaker load detection circuits, preventing unwanted muting from factory amplifiers. Automatic turn-on is supported through both remote signal detection and DC offset sensing on the speaker inputs, simplifying integration into modern vehicles.
Flexible Crossovers for Precise Sound Tuning
The versatile crossover section gives you complete control over your system setup. Independent high-pass and low-pass filters for both channel pairs are adjustable from 50 Hz to 5 kHz with a 12 dB per octave slope. An adjustable 45 Hz bass boost ranging from 0 to 8 dB allows additional low-frequency output when using the low-pass filter.
All crossover controls are conveniently located on one side of the amplifier, making system calibration easier even after the amplifier is mounted. The high-pass crossover can also optimize the performance of Hertz SPL Show NEO high-efficiency coaxial speakers for even greater system flexibility.
Reliable Protection for Long-Term Performance
The Hertz SP 4.900 includes multiple protection features designed to keep your system operating safely. Protection circuits guard against overheating and DC output conditions, automatically switching the amplifier into protection mode if necessary. Combined with its durable chassis and sealed construction, the amplifier is engineered to deliver dependable performance across a variety of demanding installations.
Compact Size with Maximum Versatility
The Hertz SP 4.900 supports 4-channel, 3-channel, and bridged 2-channel operation, giving you multiple configuration options for speakers and subwoofers. Despite its compact footprint, it delivers the power, efficiency, and flexibility needed for high-output audio systems where installation space is limited.
If you're looking for a compact amplifier that combines high RMS power, excellent efficiency, flexible tuning options, and rugged durability, the Hertz SP 4.900 offers a balanced solution built for demanding vehicle audio applications.
A Smart Choice for High-Performance Audio Systems
The Hertz SP 4.900 brings together compact dimensions, advanced Class D efficiency, versatile crossover controls, and reliable protection in one powerful amplifier. Its ability to deliver substantial power while fitting into tight spaces makes it an excellent solution for motorcycles, sports cars, trucks, marine, and powersports applications where every inch matters without compromising sound quality.
FAQs
- What is the total power output of the Hertz SP 4.900? The Hertz SP 4.900 delivers up to 1000 watts of total power, producing 160W x 4 RMS at 4Ω, 250W x 4 RMS at 2Ω, or 500W x 2 RMS when bridged at 4Ω.
- Can the Hertz SP 4.900 work with factory head units? Yes. It features built-in USS (Universal Speakers Simulator), speaker-level inputs, remote signal detection, and DC offset sensing for integration with many OEM audio systems.
- Is the Hertz SP 4.900 suitable for motorcycles and marine applications? Yes. Its IP55-rated aluminum chassis, sealed connections, conformal-coated circuit board, and fanless design make it well suited for motorcycles, marine, and powersports environments.
- What crossover adjustments are available? The amplifier includes adjustable high-pass and low-pass crossovers from 50 Hz to 5 kHz with a 12 dB/octave slope, along with adjustable 45 Hz bass boost from 0 to 8 dB.
- What speaker configurations does the Hertz SP 4.900 support? The amplifier supports 4-channel, 3-channel, and bridged 2-channel operation, allowing it to power multiple speakers, a bridged subwoofer, or a combination of both.
