HCP 4 is an amplifier designed to reproduce any musical genres with four separate channels for multiple configurations. Pre-amplified (Pre-In) inputs and high-level (Speaker-In) inputs allow for connection with any head units. Built to work both in mono, as part of a three-channel system with sub and front, and in stereo for a powerful two-channel system, HCP 4 is a unique model in terms of versatility!

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.

1. Compact design built from an extruded aluminum heatsink with the top side ensuring effective transfer of the heat generated by the power electronic components.
2. Special balanced input circuitry to reject electromagnetic disturbances pre sent on the Pre-amplified or Speaker level inputs. 
3. Input featuring both Speaker-In (OEM radio) and RCA-In (Aftermarket radio) inputs. 
4. Selectable ART, Automatic Remote Turn-On/Off function, automatically turns on and off the amplifier when the OEM radio turns on and off (available on Speaker-In only).
5. Power supply stage featuring multiple winding transformer, Low-ESR 105°C capacitors, AB-Class 2 Ω stable.
6. Pre-out, also available when using Speaker level inputs.
7. Mono operation mode (selectable) to realize a sub + front three-channel system, or a powerful two-channel system.
8. Bass Boost (50 Hz) selectable to 12 dB, to increase the subwoofer punch.
9. Lo-Pass (50 ...

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HCP 4 is an amplifier designed to reproduce any musical genres with four separate channels for multiple configurations. Pre-amplified (Pre-In) inputs and high-level (Speaker-In) inputs allow for connection with any head units. Built to work both in mono, as part of a three-channel system with sub and front, and in stereo for a powerful two-channel system, HCP 4 is a unique model in terms of versatility!

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.

1. Compact design built from an extruded aluminum heatsink with the top side ensuring effective transfer of the heat generated by the power electronic components.
2. Special balanced input circuitry to reject electromagnetic disturbances pre sent on the Pre-amplified or Speaker level inputs. 
3. Input featuring both Speaker-In (OEM radio) and RCA-In (Aftermarket radio) inputs. 
4. Selectable ART, Automatic Remote Turn-On/Off function, automatically turns on and off the amplifier when the OEM radio turns on and off (available on Speaker-In only).
5. Power supply stage featuring multiple winding transformer, Low-ESR 105°C capacitors, AB-Class 2 Ω stable.
6. Pre-out, also available when using Speaker level inputs.
7. Mono operation mode (selectable) to realize a sub + front three-channel system, or a powerful two-channel system.
8. Bass Boost (50 Hz) selectable to 12 dB, to increase the subwoofer punch.
9. Lo-Pass (50 Hz to 500 Hz) and Hi-Pass (80 Hz) 12 dB crossover filters. The Hi-Pass fixed frequency filter ensures optimal coupling with sub amplifier, also providing the ability to realize a front + rear or a sub + front system.
10. Selectable full range power outputs.

Power Supply

• Power supply voltage / fuse: 11 ÷ 15 VDC / 2 x 20 A
• Idling current (power ON/OFF): 1 A / 0.04 mA
• Consumption @ 2 Ω, 14.4 VDC (Max Musical Power): 21 A
• Remote In: 7 ÷ 15 VDC - 1 mA
• ART: Automatic Remote Turn-On/Off with Speaker-In

Features

• Distorsion - THD (100 Hz @ 4Ω): 0.01 %
• Bandwidth: 10 ÷ 45K Hz
• S/N Ratio (A weighted @ 1 V): 103 dB
• Damping factor (100 Hz @ 4 Ω): 120
• Pre-In sensitivity: 0.6 ÷ 5 VRMS (15 k Ω)
• Speaker-In sensitivity: 1.5 ÷ 12 VRMS (47 Ω)
• Load impedance (MIN)
  - @ 4 Ch: 2 Ω
  - @ 3 Ch: 2 Ω + 2 Ω + 4 Ω
  - @ 2 Ch: 4 Ω

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

• 4 Ch: 55 W x 4 (4 Ω)
• 4 Ch: 85 W x 4 (2 Ω)
• 3 Ch: 55 W x 2 (4 Ω) + 170 W x 1 (4 Ω)
• 3 Ch: 85 W x 2 (2 Ω) + 170 W x 1 (4 Ω)
• 2 Ch: 170 W x 2 (4 Ω)

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

• 4 Ch: 65 W x 4 (4 Ω)
• 4 Ch: 95 W x 4 (2 Ω)
• 3 Ch: 65 W x 2 (4 Ω) + 190 W x 1 (4 Ω)
• 3 Ch: 95 W x 2 (2 Ω) + 190 W x 1 (4 Ω)
• 2 Ch: 190 W x 2 (4 Ω)

INPUTS : PRE IN / SPEAKER IN

• Pre out FULL range (FRONT): Yes
• FRONT Ch. filters FULL: Yes
• Hi-Pass: 80 Hz @ 12 dB/Oct.
• Lo-Pass: 50 ÷ 500 Hz @ 12 dB/Oct.
• REAR Ch. filters FULL: Yes
• Hi-Pass: 80 Hz @ 12 dB/Oct.
• Lo-Pass: 50 ÷ 500 Hz @ 12 dB/Oct.
• FRONT Ch. MONO (on/off): Yes
• REAR Ch. MONO (on/off): Yes
• BOOST 50 Hz (select): (0 / 6 / 12) dB 

Size/Weight

• Max size (mm / in.): 315 x 190 x 50 / 12.40 x 7.48 x 1.97
• Weight (kg / lb.): 2,62 / 5.77 

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