About: Hertz HP802 2 Channels Car Stereo Amplifier 

HP 802 is an AB Class stereo spl car audio amplifier, able to deliver up to 1800W. The power supply stage is overbuilt featuring components selected for their robustness, efficiency and reliability even for extended time operation. The output stage features an oversized power supply with 4 toroidal transformers, providing the ability to deliver remarkable power and work stable into 1 Ohm load.
The array of the featured filters is remarkably complex, beyond the standards of mobile electronics in this category: separate Hi-Pass and Lo-Pass filters, able to be configured into a 50 Hz – 10 Hz adjustable Band-Pass filter. A parametric equalizer is also on board, to optimize the response on amplified channels, as well as a Pre Out, to re-launch the input signal to another HP 802 in a multi-amplified system without limits on the number of ways.

Specifications:

• Channels 2-1
• Power supply voltage: 11 ÷ 15 VDC / 4 x 30 A
• Idling current (power ON/OFF): 0.04 mA
• Consumption @ 1 Ω, 14.4 VDC
• (Max Musical Power): 100 A
• Remote In: 7 ÷ 15 VDC - 1 mA
• Distortion - THD (100 Hz @ 4 Ω): 0.05 %
• Bandwidth (filter off): 10 ÷ 55k Hz
• S/N Ratio (A weighted @ 1 V): 103 dB
• Damping factor (100 Hz @ 4 Ω): 500
• Pre-In sensitivity: 0.3 ÷ 5 VRMS (15 k Ω)
• Load impedance (MIN):
• @ 2 Ch: 1 Ω
• @ 1 Ch: 2 Ω
• Adjustable Crossovers yes
• Inputs: Pre-In
• Pre out FULL range: Yes
• Filter Hi-Pass On/Off: Yes
• Hi-Pass: 50 ÷ 1k Hz / 500 ÷ 10k Hz
• Filter Lo-Pass On/Off: Yes
• Lo-Pass: 50 ÷ 1k Hz / 500 ÷ 10k Hz
• Filter Band-Pass: 50 ÷ 10k Hz (HI)
• 50 ÷ 10k Hz (LO)
• Equalizer Freq.: 50 ÷ 1k Hz
• Equalizer Q: 0.5 ÷ 2
• EqualizerGAIN: ± 12

Output Power

Output Nominal Power (RMS) @ 14.4 VDC, THD 1%:

• 2 Ch: 330 W x 2 (4 Ω)
• 2 Ch: 550 W x 2 (2 Ω)
• 2 Ch: 800 W x 2 (1 Ω)
• 1 Ch: 1100 W x 1 (4 Ω)
• 1 Ch: 1600 W x 1 (2 Ω)

Output Power (RMS) @ 14.4 VDC, THD 10%:

• 2 Ch: 380 W x 2 (4 Ω)
• 2 Ch: 630 W x 2 (2 Ω)
• 2 Ch: 900 W x 2 (1 Ω)
• 1 Ch: 1260 W x 1 (4 Ω)
• 1 Ch: 1800 W x 1 (2 Ω)

Total Power 1800 W