Hertz SP 4.900

Details about the Hertz SP 4.900

SP 4.900 is the first Hertz amplifier featuring the renewed Hertz ADC (Advanced D-Class) output stage, reaching up to 85% efficiency and delivering an impressive power rating of 160 x 4 (4Ω) W RMS or 500 W x 2 (4Ω) W RMS when bridged, with an ultra-compact size of 211.6 (8.3) x 130 (5.1) mm (in.). Being ultra-compact with impressive power, SP 4.900 is the ideal choice for Motorcycle application and for under-seat in sports cars and behind-seat installations in trucks.

Features 

Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage.
USS (Universal Speakers Simulators) allows SP 4.900 to work with head units featuring the “speaker load detection” circuit.
160 W RMS x 4 (4Ω) with ultra-compact size 211.6 x 130 x 49 / 8.3 x 5.1 x 1.9 (mm/inch).
IP55 aluminium chassis for maximum protection against humidity and external agents.
No cooling fan to prevent internal accumulation of dirt 6. Sealed power cord, line inputs, and speaker outputs to prevent oxidation.
Crossovers filters and controls on a single side to facilitate calibration when the product is installed.

Hertz ADC
(Advanced D-Class)
The Herz SP compact amplifier range consists of three high-performance models. There are two four-channel models, the flagship SP4.900 with 160 x 4 W RMS at 4Ω and the SP4.500 with 90 x 4 W RMS at 4Ω, and a mono model SP1.900 boasting 1000 W RMS at 1Ω.

Hertz SP amplifier are the first Hertz amplifier featuring the renewed Hertz ADC (Advanced D-Class) output stage, reaching up to 87% efficiency and delivering an impressive power rating, with an ultra-compact size.

Being ultra-compact with an impressive power, SP amplifiers are the ideal choice for Motorcycle application and for under-seat in sport cars and behind-seat installations in trucks.

Hertz ADC technology ensures SP amplifiers overtake the usual ultra-compact amplifier performances, delivering an outstanding S/N Ratio and THD specifications, and almost completely eliminating EMI and RFI noise, for peerless sound quality.

This versatility of the four-channel models is perfect to drive high-power (4Ω) front speakers with a bridged (4Ω) subwoofer.

SP amplifiers are fully protected against overheating and DC outputs, immediately switching in protection mode (red LED on) to save your speaker system.

The IP55 certified Aluminum chassis offers maximum protection against humidity and external agents and the absence of an internal cooling fan prevents the accumulation of dirt. SP amplifier’s main board has conformal coating layers to prevent harm caused by internal condensation, a condition that can happen when warm, moist air meets the amp chassis of a lower temperature.