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Description

Hifonics A1200.1D

The Hifonics A1200.1D is a Super Class D monoblock amplifier from the Alpha (A) Series, designed to deliver efficient and powerful bass performance for car audio subwoofer systems. Featuring advanced MOSFET power supply design, flexible tuning controls, and built‑in protection circuitry, it’s suited for daily listening systems and moderate SPL builds.


Specifications

Category Specification
Type Amplifier
Brand Hifonics
Series ALPHA
Category Mobile
Condition New
Color Black
Warranty 1 Year
Compatible Vehicles Universal
Amp Class Super D-Class®
Total Channels 1
Max Power 1200 Watts
Power @ 1 Ohm 1 x 1200 W
Power @ 2 Ohms 1 x 600 W
Power @ 4 Ohms 1 x 325 W
Crossover Electronic
Low Pass Crossover 30Hz – 250Hz
Tone Control / EQ Bass EQ
Bass Boost 0 – 12dB @ 45Hz
Subsonic Filter 10Hz – 50Hz
Phase Shift Variable 0° – 180°
Variable Voltage 0.2 – 6V
Signal to Noise Ratio > 90dB
Frequency Response 10Hz – 250Hz
Total Harmonic Distortion (THD) < 1%
Speaker Level Inputs Yes
Power Terminal 4 AWG
Speaker Terminal Wire Gauge 14 AWG
Fusing Use External Fuse
Additional Details Heatsink Size: 9.25″ (L) × 5.75″ (D) × 2.37″ (H)

Features & Benefits

Low Noise Preamplifier Circuit Maximum low voltage signal from the source unit comes into the amplifier through a low voltage circuit which delivers minimal distortion through the amplification process.
RCA Inputs Audiophile RCA connectors allow maximum signal throughput with minimum distortion and masximum external noise rejection.
Operation Mode Mono only
Crossover Type Accu-Cross crossovers allow for complete control of the signal directing to all speakers. See specifications section for specific frequencies.
Electronic Equalizer Control of amplifier output with on board electronic crossover to tailor specific frequencies to speakers and subwoofers. Check specifications for specific frequencies for this amplifier.
Class / Topology Developed over 4 decades of engineering to deliver the highest level of sound quality and power efficiency, Hfioncis ALPHA Super D-Class® circuitry results in lower distortion, higher current efficiencies and while producing less heat than conventional amplifier designs.
Output Device Technology The Ultra-Fi™ MOSFET is designed for music production vs just electronics output power. It produces very musical high power with high efficiency for cooling and minimal distortion.
Heat Sink Heavy duty aluminum alloy heat-sink efficiently moves heat from the MOSFET where it can be cooled.
Power Supply The Twin Turbo Coil PS is a Pulse Width Modulated power supply keeps voltage constant through the Ultra-Fi output devices.
Output Connections Nickel-plated, high temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant.
Connection Type Secure connection for all power, ground and speaker connections. Angled for ease of access during installation.
LED System Protection Circuitry Diagnostics Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel.
Bass Remote Included HFR-31: Wired Bass Remote allows adjustments to bass frequencies from the control which can be mounted anywhere in the vehicle. Smooth potentiometer and ringed illumination in a satin black mount create a custom look.
Phase Adjustment Phase 0-180°: Bass drum attack, snap requires phase between deep frequency subwoofers and upper midbass speakers. Fat man/Skinny man, must arrive at your ear at the same time or bass sounds muddy.
Auto Turn-On The amplifier detects a voltage rise (6 volts) with a “DC Offset” over the connected input signal on the HIGH LEVEL INPUTS when the head unit or source unit is switched on. Thus, the amplifier will also be turned on. When the source unit is turn off the amplifier is also turned off. Using this feature eliminates the need to use the REM (turn on wire). The AUTO TURN-ON function will work with 90% of all source units because they are equipped with “high power” output. Only a few holder head units will not use this function.
Additional Features 300KHZ HIGH SPEED PULSING: The switching speed of the Class D chip puts the amplifier sampling frequencies at over 100 times higher than human ears can hear. This means that the amplifier and the very fast digital switching remains un-hearable in the audio bandwidth for music.

 

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Questions and Answers

Q1: What is the Hifonics A1200.1D?

A1: It’s a 1200 W Super Class D monoblock amplifier designed to power subwoofers with strong and efficient bass output.

Q2: Is it 1 Ω stable?

A2: Yes — it is 1 Ω stable and delivers maximum power at that load.

Q3: Does it include a bass knob?

A3: Yes — it typically comes with or supports a wired bass remote for convenient bass level control.

Q4: What wiring is recommended?

A4: Recommended to use 4 AWG or better power and ground wiring for proper current delivery.

Q5: Is it suitable for SPL builds?

A5: Yes — it’s suitable for daily bass systems and moderate SPL setups depending on subwoofer and electrical system configuration.


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