Description
Hifonics ZD-1750.5D
The Hifonics ZD‑1750.5D is a Class D 5‑channel full‑range amplifier from the Zeus Delta (ZD) Series, engineered to power complete car audio systems — from speakers to subwoofers — with high efficiency and versatile tuning control. Featuring a PWM MOSFET power supply, variable crossovers, bass remote control, and strong protection circuitry, it’s suitable for daily listening builds as well as larger systems that require flexible channel configurations.
Specifications
| Category | Specification |
|---|---|
| Type | Amplifier |
| Brand | Hifonics |
| Series | ZEUS DELTA |
| Category | Mobile |
| Condition | New |
| Color | Black |
| Warranty | 1 Year |
| Compatible Vehicles | Universal |
| Amp Class | Class D |
| Total Channels | 5 |
| Max Power | 1750 Watts |
| Power @ 1 Ohm | 1 x 850 W (Sub Only) |
| Power @ 2 Ohms | 4 x 225 W + 1 x 450 W |
| Power @ 4 Ohms | 4 x 100 W + 1 x 225 W |
| Mono Bridged @ 4 Ohms | 2 x 450 W |
| Crossover | Variable Electronic 12dB/Octave |
| High Pass Crossover | 50Hz – 250Hz |
| Low Pass Crossover | 50Hz – 250Hz |
| Tone Control / EQ | Built-in Bass Control |
| Bass Boost | 0 – 12dB |
| Subsonic Filter | 15Hz – 40Hz |
| Variable Voltage | 0.2 – 6V |
| Frequency Response | 10Hz – 22kHz |
| Total Harmonic Distortion (THD) | < 0.1% |
| Speaker Level Inputs | Yes |
| Power Terminal | 4 AWG |
| Speaker Terminal Wire Gauge | 12 AWG |
| Fusing | External 100A |
Features & Benefits
| Compatible Vehicle Fitment | Universal |
|---|---|
| Low Noise Preamplifier Circuit | Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion. |
| RCA Inputs | Nickel plated high temperature impact resistant that allow for secure connections and is erosion resistant. |
| Operation Mode | Five Channel, Full Range, Bridgeable, Mono: Flexible installation allows this amplifier to run in four channel or bridged mono mode. |
| Crossover Type | Onboard electronic crossover |
| Electronic Equalizer | Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers. |
| Class / Topology | Class D: High efficiency with big power in a small footprint. |
| Output Device Technology | PWM MOSFET Power Supply: Stable power through the PC board with minimal heat generation. |
| Heat Sink | Aluminum: Modern Design Hifonics Heat sink for Superior Heat Dissipation. |
| Power Supply | Simpatico Coil Design: The dual coil Pulse Width Modulated power supply keeps voltage constant through the Ultra-Fi output devices. |
| Connection Type | Secure molded connection terminal for all Power, Ground and Speaker connections. Angled for ease of access while creating a clean wire mangement profile. |
| LED System Protection Circuitry Diagnostics | Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel. |
| Bass Remote Included | Yes |
| Auto Turn-On | DC SIGNAL SENSE: The DC SIGNAL SENSE switch will allow the amp to turn on when a signal is received on the RCA inputs, so an amplifier remote turn on wire is not needed to turn on the amplifier. This feature can also be turned off. |















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