Hertz SP 4.900 Amplifier - 4 Channel - 1000W - Class D ADC - Ultra-Compact - IP55 - USS

Highlights

• Exceptional efficiency up to 85% thanks to the ADC (Advanced D-Class) output stage
• USS (Universal Speakers Simulators) for compatibility with car radios with load detection
• Impressive power: 160W x 4 @ 4Ω in an ultra-compact format
• IP55 aluminum chassis for maximum protection against humidity and external agents
• No cooling fan to prevent internal dirt accumulation
• Sealed power cable, inputs, and outputs to prevent oxidation
• Crossover filters and controls on one side for easy calibration
• Ultra-compact dimensions: 211.6 x 130 x 49 mm for easy installation

Description

The SP 4.900 is an ultra-compact 1000W 4-channel amplifier incorporating the latest Hertz technologies for exceptional performance and reliability.

1. EXCEPTIONAL EFFICIENCY

Efficiency up to 85% thanks to the ADC (Advanced D-Class) output stage for optimal performance and less heat dissipation.

2. UNIVERSAL COMPATIBILITY

USS (Universal Speakers Simulators) allows the SP 4.900 to work with car radios equipped with the "speaker load detection" circuit for maximum compatibility.

3. POWER IN A COMPACT FORMAT

160W x 4 @ 4Ω in an ultra-compact format of 211.6 x 130 mm for installation in tight spaces.

4. MAXIMUM PROTECTION

IP55 aluminum chassis for maximum protection against humidity and external agents, ideal for harsh environments.

5. FANLESS DESIGN

No cooling fan to prevent internal dirt accumulation and ensure long-term reliability.

6. PROTECTION AGAINST OXIDATION

Sealed power cable, line inputs, and speaker outputs to prevent oxidation and ensure reliable connections.

7. EASY CALIBRATION

Crossover filters and controls on one side to facilitate calibration when the product is installed.

• 4-channel amplifier with ADC (Advanced D-Class) output stage for maximum efficiency
• Exceptional efficiency up to 85% for optimal performance
• USS (Universal Speakers Simulators) for compatibility with OEM car radios
• Impressive power: 160W x 4 @ 4Ω or 500W x 2 @ 4Ω in bridged mode
• Ultra-compact dimensions: 211.6 x 130 x 49 mm for easy installation
• IP55 aluminum chassis for maximum protection against humidity and external agents
• Operating temperature range: 0°C to 55°C (32°F to 131°F)
• No cooling fan to prevent dirt accumulation
• Sealed power cable, inputs, and outputs to prevent oxidation
• Crossover filters and controls on one side for easy calibration
• Flexible configuration: 4 channels, 3 channels, or 2 bridged channels
• 4-channel mode: 250W x 4 @ 2Ω to power all your speakers
• 3-channel mode: 250W x 2 @ 2Ω + 500W x 1 @ 4Ω for a system with subwoofer
• 2-channel mode: 500W x 2 @ 4Ω for a powerful stereo system
• Channels 1-2 filters: Hi-Pass / Lo-Pass - 50-5k Hz @ 12 dB/Oct.
• Channels 3-4 filters: Hi-Pass / Lo-Pass - 50-5k Hz @ 12 dB/Oct.
• Adjustable Bass Boost at 45 Hz: 0-8 dB (LP = ON only)
• Bandwidth from 10 Hz to 35 kHz for high-fidelity reproduction
• Exceptional signal-to-noise ratio of 105 dBA for impeccable audio quality
• Damping factor of 200 @ 1 kHz for optimal control
• Ultra-low distortion of 0.02% @ 1 kHz for faithful sound reproduction
• Pre-In input sensitivity adjustable from 0.6 to 6 VRMS
• Speaker-In input sensitivity adjustable from 2.2 to 22 VRMS
• RCA (Pre-In) and high-level (Speaker-In) inputs for universal compatibility
• DC-REM: automatic turn-on via SPK DC from BTL speakers (3.5-7 VDC)
• Remote IN: 6-15 VDC (9 mA) for remote control
• Nominal supply voltage: 11-15 VDC
• Pulsed operating voltage: 6-16 VDC for maximum compatibility
• Quiescent current of 1.1A and minimal standby current of 0.03 mA
• Maximum consumption of 50A @ 14.4 VDC for extreme power
• Compact construction weighing 2.15 kg for easy installation
• IP55 protection for use in harsh environments

Technical Specifications

Number of Channels	4 - 3 - 2
Amplification Class	Class D (ADC - Advanced D-Class)
Efficiency	85%
Total RMS Power	1000 W
Nominal Power @ 14.4 VDC, 1% THD	4Ch @ 4Ω: 160 W x 4 4Ch @ 2Ω: 250 W x 4 3Ch @ 4Ω: 160 W x 2 + 500 W x 1 (4Ω) 3Ch @ 2Ω / 4Ω: 250 W x 2 (2Ω) + 500 W x 1 (4Ω) 2Ch @ 4Ω: 500 W x 2 (bridged)
Minimum Load Impedance	4Ch: 2Ω / 3Ch: 2Ω + 2Ω + 4Ω / 2Ch: 4Ω
Distortion THD @ 1 kHz, 4Ω	0.02%
Bandwidth @ -3 dB	10 Hz - 35 kHz
Signal-to-Noise Ratio	105 dBA (A weighted @ 1 V Input)
Damping Factor @ 1 kHz, 4Ω	200
Pre-In Input Sensitivity	0.6 - 6 VRMS
Speaker-In Input Sensitivity	2.2 - 22 VRMS
Inputs	RCA (Pre-In), High-level (Speaker-In)
Channels 1-2 Filters	Hi-Pass: 50-5k Hz @ 12 dB/Oct. Lo-Pass: 50-5k Hz @ 12 dB/Oct.
Channels 3-4 Filters	Hi-Pass: 50-5k Hz @ 12 dB/Oct. Lo-Pass: 50-5k Hz @ 12 dB/Oct.
Bass Boost 45 Hz	0 - 8 dB (LP = ON only)
USS	Universal Speakers Simulators
Nominal Supply Voltage	11 - 15 VDC
Pulsed Operating Voltage	6 - 16 VDC
Quiescent Current	1.1 A
Standby Current	0.03 mA
Consumption @ 14.4 VDC	50 A
Remote IN	6 - 15 VDC (9 mA)
DC-REM	3.5 - 7 VDC (turn-on by SPK DC)
Protection Rating	IP55
Operating Temperature Range	0°C to 55°C (32°F to 131°F)
Dimensions (L x W x H)	211.6 x 130 x 49 mm (8.33 x 5.118 x 1.929")
Weight	2.15 kg (4.74 lbs)

Why choose it

• Exceptional efficiency up to 85% thanks to the ADC (Advanced D-Class) output stage
• USS (Universal Speakers Simulators) for compatibility with car radios with load detection
• Works perfectly with OEM car radios equipped with speaker load detection circuit
• Impressive power: 160W x 4 @ 4Ω in an ultra-compact format
• Ultra-compact dimensions: 211.6 x 130 x 49 mm for installation in tight spaces
• IP55 aluminum chassis for maximum protection against humidity and external agents
• Use in harsh environments without compromise
• Extended operating temperature range: 0°C to 55°C
• No cooling fan to prevent internal dirt accumulation
• Guaranteed long-term reliability without fan maintenance
• Sealed power cable, line inputs, and speaker outputs
• Protection against oxidation for reliable connections over time
• Crossover filters and controls on one side for easy calibration
• Simplified installation and adjustments even in tight spaces
• Flexible configuration: 4 channels, 3 channels, or 2 bridged channels
• 4-channel mode: 250W x 4 @ 2Ω to power all your speakers
• 3-channel mode: 250W x 2 + 500W x 1 for a system with subwoofer
• 2-channel mode: 500W x 2 @ 4Ω for a powerful stereo system
• Independent Hi-Pass and Lo-Pass filters on channels 1-2 and 3-4
• Adjustable filters from 50 to 5k Hz @ 12 dB/Oct. for full customization
• Adjustable Bass Boost at 45 Hz (0-8 dB) for bass enhancement
• Bandwidth from 10 Hz to 35 kHz for high-fidelity reproduction
• Exceptional signal-to-noise ratio of 105 dBA for impeccable audio quality
• Damping factor of 200 for optimal control
• Ultra-low distortion of 0.02% for faithful sound reproduction
• RCA and high-level inputs for universal compatibility
• DC-REM for automatic turn-on from BTL speakers
• Pulsed operating voltage of 6-16 VDC for maximum compatibility
• Minimal standby current of 0.03 mA to preserve battery
• Compact construction weighing 2.15 kg for easy installation
• Ultimate solution for installations in tight spaces with maximum protection

Documentation

For more technical information and the complete installation manual, please refer to the official Hertz documentation.

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