Hifonics ZD-750.4D ZEUS DELTA 700 Watt Four Channel Amplifier
Key features
- Amplifier channels: 4
- Amplifier class: Class D
- Frequency response: 10Hz-22kHz
- High-pass crossover (12 dB/octave): 50Hz-250Hz
- Low-pass crossover (12 dB/octave): 50Hz-250Hz
- Speaker-level inputs: Yes
Hifonics ZD-750.4D ZEUS DELTA 700 Watt Four Channel Amplifier is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Get four-channel control for a full-range mobile audio system with the Hifonics ZD-750.4D ZEUS DELTA amplifier. Its Class D design, onboard crossover, and bridgeable outputs give you options for powering multiple speakers or two bridged channels.
Key Features & Benefits
- Four-channel output: Choose four-channel operation or bridged mono output to suit your system layout.
- Onboard crossovers: Adjust high-pass and low-pass filtering from 50Hz to 250Hz for frequency tailoring.
- Class D topology: The high-efficiency design delivers its stated power in a compact footprint.
- DC signal-sensing turn-on: The feature can switch the amplifier on when an RCA audio signal is detected, without a separate remote turn-on wire.
- Connection access: Angled, molded terminals accommodate 4 AWG power wire and 12 AWG speaker wire.
- Diagnostic indicators: Illuminated LEDs monitor overload and speaker-short protection.
Technical Specifications
| Brand | Hifonics |
|---|---|
| Series | ZEUS DELTA |
| Model number | ZD-750.4D |
| Type | Amplifier |
| Amplifier class | Class D |
| Total channels | 4 |
| Maximum power | 750 W |
| Power output at 2 ohms | 4 x 175 W |
| Power output at 4 ohms | 4 x 100 W |
| Mono bridged power at 4 ohms | 2 x 375 W |
| Frequency response | 10Hz - 22kHz |
| Total harmonic distortion (THD) | < 0.5% |
| Variable voltage | 0.2 - 6V |
| Crossover | Variable electronic, 12dB per octave |
| Variable high-pass crossover | 50Hz - 250Hz |
| Variable low-pass crossover | 50Hz - 250Hz |
| Tone control | Built-in bass control |
| Speaker-level audio inputs | Yes |
| Power terminal gauge | 4 AWG |
| Speaker terminal wire gauge | 12 AWG |
| Fusing | External 60A |
| Item dimensions | 18.6 x 14.6 x 5.5 cm |
| Item weight | 1.4 kg |
| Package dimensions | 27.5 x 17.5 x 8 cm |
| Package weight | 1.7 kg |
| Color | Black |
| Heatsink material | Aluminum |
| Low-noise preamplifier | Low-noise circuitry for minimal distortion of the low-voltage source signal |
| RCA inputs | Nickel-plated, high-temperature, impact-resistant, and erosion-resistant |
| Operation mode | Four channel, full range, bridgeable |
| Power supply | PWM MOSFET power supply with Simpatico coil design |
| Connection type | Molded, angled power, ground, and speaker connection terminals |
| Protection diagnostics | Illuminated indicators monitor overload and speaker short protection |
| Auto turn-on | DC signal sensing; switchable on or off. Turns on when a signal is received on the RCA inputs. |
| Compatibility | Universal fitment for 12V automotive electrical systems and aftermarket or factory head units supporting RCA or speaker-level audio inputs |
| Download | Hifonics ZEUS DELTA Amplifiers (ZD) Quick Start Guide (Rev1) |
Why Choose This Product?
The ZD-750.4D combines four-channel and bridged operation in one amplifier, so you can select the configuration that matches your system plan. Its onboard electronic crossover lets you tailor the output for speakers and subwoofers, while the aluminum heatsink is designed for heat dissipation.
Nickel-plated RCA inputs provide a corrosion-resistant connection point. The low-noise preamplifier circuitry is designed to keep distortion minimal as the source signal enters the amplifier.
Installation & Compatibility Notes
This amplifier is specified for 12V automotive electrical systems and head units with RCA or speaker-level audio outputs. Check your head unit’s available connection type and your planned system configuration before installation.
Power and ground terminals accommodate 4 AWG wire; speaker terminals accommodate 12 AWG wire. The amplifier uses external 60A fusing. Its item dimensions are 18.6 x 14.6 x 5.5 cm, so allow for its size and connection access when planning placement.
Frequently Asked Questions
Can the Hifonics ZD-750.4D be bridged?
Yes. It supports bridged mono operation and is rated at 2 x 375 W at 4 ohms.
What power does it deliver in four-channel mode?
The listed output is 4 x 175 W at 2 ohms or 4 x 100 W at 4 ohms.
Do I need a separate remote turn-on wire?
The switchable DC signal-sensing feature can turn the amplifier on when it detects an audio signal on the RCA inputs, so a separate remote turn-on wire is not needed for that operation.
What crossover adjustments are available?
The onboard electronic crossover provides variable 12dB-per-octave high-pass and low-pass filtering, each adjustable from 50Hz to 250Hz.
Which source-unit connections are supported?
The listed compatibility includes aftermarket or factory head units with RCA or speaker-level audio outputs.
Explore More
Shop for car audio at 12 Volt Outlet. Want to learn more about Hifonics? Explore our Hifonics brand profile.
| Brand | Hifonics |
| Series | ZEUS DELTA |
| Model Number | ZD-750.4D |
| Type | Amplifier |
| Amplifier Class | Class D |
| Total Channels | 4 |
| Max Power | 750 W |
| Power Output @ 2 Ohms | 4 x 175 W |
| Power Output @ 4 Ohms | 4 x 100 W |
| Mono Bridged Power @ 4 Ohms | 2 x 375 W |
| Frequency Response | 10Hz - 22kHz |
| Total Harmonic Distortion (THD) | < 0.5% |
| Variable Voltage | 0.2 - 6V |
| Crossover | Variable Electronic 12dB Per Octave |
| Variable High Pass Crossover | 50Hz - 250Hz |
| Variable Low Pass Crossover | 50Hz - 250Hz |
| Tone Control | Built-in Bass Control |
| Speaker Level Audio Inputs | Yes |
| Power Terminal Gauge | 4 AWG |
| Speaker Terminal Wire Gauge | 12 AWG |
| Fusing | External 60A |
| Item Dimensions | 18.6 x 14.6 x 5.5 cm |
| Item Weight | 1.4 kg |
| Package Dimensions | 27.5 x 17.5 x 8 cm |
| Package Weight | 1.7 kg |
| Color | Black |
| Heatsink Material | Aluminum |
| Feature | Benefit |
|---|---|
| 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 | Four Channel, Full Range, Bridgeable: 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 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 management profile. |
| LED System Protection Circuitry Diagnostics | Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel. |
| Auto Turn-On | DC SIGNAL SENSE: The DC SIGNAL SENSE switch allows the amp to turn on when a signal is received on the RCA inputs, so an amplifier remote turn on wire is not needed. This feature can also be turned off. |
Frequently asked questions
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