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SP4.900
SP 4.900Ch: 4 - 3 - 2 | 1000 W
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.

SP4.900

$699.99Price
  • Channels 4 - 3 - 2
    Nominal power supply voltage 11 ÷ 15 VDC
    Pulse Operating voltage 6 ÷ 16 VDC
    Idling current 1.1 A
    Idling current when off 0.03 mA
    Consumption @ 14.4 VDC, MIN load impedance (Max Musical Power) 50 A
    Remote IN 6 ÷ 15 VDC (9 mA)
    DC-REM - Remote Turn on by SPK DC from OUTPUT BTL speakers 3.5 ÷ 7 VDC
    Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power 0.02%
    Damping factor @ 1 kHz, 4Ω, 2 VRMS 200
    Bandwidth @ -3 dB 10 Hz ÷35 kHz
    S/N ratio (A weighted @ 1 V Input) 105 dBA
    Pre-In sensitivity 0.6 ÷ 6 VRMS
    Speaker-In sensitivity 2.2 ÷ 22 VRMS
    Minimum load impedance:  
    @ 4Ch 2Ω
    @ 3Ch 2Ω + 2Ω + 4Ω
    @ 2Ch 4Ω
    IP Rating IP55
    Operating Temperature Range 0°C (32°F) to 55°C (131°F)
    Max size (mm/inch) 211.6 x 130 x 49 / 8.33 x 5.118 x 1.929
    Weight (kg/lbs) 2.15 / 4.74
    Adjustable Crossovers yes

  • Hertz ADC technology ensures SP 4.900 overtakes the usual ultra-compact amplifier performances, delivering an outstanding 105 dBA S/N Ratio and 0.02% THD specifications, and almost completely eliminating EMI and RFI noise, for peerless sound quality.

    This versatility is perfect to drive high power (4Ω) front speakers with a bridged (4Ω) subwoofer.

    SP 4.900 is 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 internal cooling fan prevents internal accumulation of dirt. SP 4.900 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.