HCP 4D is a D Class car audio amplifier, able to offer up to 1160W (RMS); it is the ideal choice for those who want high power levels in complex systems. Extremely versatile, complete in its functions, provided with Speaker-In and RCA-In inputs to work with any head units, it has been designed to work also in mono (selectable mode), for a three-channel system with sub and front, or a powerful two-channels system.

All the Hertz Compact Power amplifiers are assembled with high-quality components and feature a complete and by-passable crossover system. The dissipation system is optimized with the heat being transferred to the heat sink and then dissipated through the sides of the amplifier.
 
Output Power (RMS) @ 14.4 VDC, THD 1%:
 
4 Ch:
75 W x 4 (4 Ω)
4 Ch:
130 W x 4 (2 Ω)
3 Ch:
75 W x 2 (4 Ω) + 260 W x 1 (4 Ω)
3 Ch:
130 W x 2 (2 Ω) + 260 W x 1 (4 Ω)
2 Ch:
260 W x 2 (4 Ω)
Output Power (RMS) @ 14.4 VDC, THD 10%:
 
4 Ch:
85 W x 4 (4 Ω)
4 Ch:
145 W x 4 (2 Ω)
3 Ch:
85 W x 2 (4 Ω) + 290 W x 1 (4 Ω)
3 Ch:
145 W x 2 (2 Ω) + 290 W x 1 (4 Ω)
2 Ch:
290 W x 2 (4 Ω)
CEA 2006-A Ratings:
 
RMS Power (4 Ω, ≤1 %THD + N, 14.4 V):
70 W x 4 Ch
S/N Ratio (ref. 1 W output):
80 dBA
Total Power
1160 W
 
Channels
4 - 3 - 2
POWER SUPPLY
 
Power supply voltage / fuse:
11 ÷ 15 VDC / 2 x 20 A
Idling current (power ON/OFF)
1.6 A / 0.04 mA
Consumption @ 2 Ω, 14.4 VDC (Max Musical Power):
22 A
Remote In:
7 ÷ 15 VDC - 1 mA
ART
Automatic Remote Turn-On/Off with Speaker-In
AMPLIFIER STAGE
 
Distorsion - THD (100 Hz @ 4 Ω)
0.02 %
Bandwidth:
10 ÷ 60K Hz
S/N Ratio (A weighted @ 1 V)
100 dB
Damping factor (100 Hz @ 4 Ω):
200
Pre-In sensitivity
0.2 ÷ 5 VRMS
Speaker-In sensitivity:
0.8 ÷ 20 VRMS
Load impedance (MIN)
 
@ 4 Ch:
2 Ω
@ 3 Ch:
2 Ω + 2 Ω + 4 Ω
@ 2 Ch:
4 Ω
Max size (mm / in.):
215 x 190 x 50 / 8.46 x 7.48 x 1.97
Weight (kg / lb.):
1.94 / 4.27
Adjustable Crossovers
yes