Helix M One X Mono Subwoofer Amp 1 Channel Class D Amplifier 1030w RMS 1 Ohm

The Helix M One X is a mono Class D subwoofer amplifier delivering 1,030 W RMS at 1 ohm, from the Helix M One range. It is a compact monoblock designed for high-power subwoofer installations where space is limited, and includes a bass remote control.

This listing is the M One X. The Helix M One range is also available as the Helix M One (up to 600 W RMS at 1 ohm).

Key specifications

• Channels: 1 (mono)
• Class: D
• Power (single amplifier): 400 W RMS at 4 ohm, 700 W RMS at 2 ohm, 1,030 W RMS at 1 ohm
• TwinPower Link (two amplifiers): 1,400 W at 4 ohm, 2,060 W at 2 ohm
• Inputs: 2 x RCA, 2 x high-level speaker input (ADEP), remote in, remote control input
• Crossover: low-pass 50–250 Hz, subsonic 10–50 Hz, phase 0–180°
• Bass boost: 0–12 dB at 30–80 Hz
• Operating voltage: 10.5–16 V (max. 5 sec. down to 6 V)
• Fuse: 3 x 40 A Maxi
• Dimensions (H x W x D): 50 x 320 x 154 mm

1 channel Class D amplifier

The M One X is a compact monoblock for subwoofer applications. Built on Class D technology, it is stable at 1 ohm impedance, making it a natural match for 2 x 2 ohm subwoofers with both voice coils wired in parallel. Two M One X amplifiers can also be combined via TwinPower Link for a single higher-output installation.

Features

• Compact Class D amplifier with up to 1,180 W RMS at 1 ohm — ideal for 2 x 2 ohm subwoofers connected in parallel
• Start-Stop capability: operates down to 6 V supply voltage
• Smart high-level input with ADEP circuit and Auto Turn-On function
• Integrated active crossover with low-pass, bass boost, subsonic and phase control
• TwinPower Link for connecting two amplifiers in bridged mode
• Bass remote control included for volume adjustment
• Low heat dissipation due to high Class D efficiency

Smart highlevel input

Many modern OE car radios diagnose connected speakers and can display fault messages — or lose features such as fader control — when a standard amplifier is connected. The ADEP circuit (Advanced Diagnostics Error Protection) prevents these issues without unnecessarily loading the OE radio's speaker outputs at high volumes.

Start-Stop capability

The M One X's switched-mode power supply maintains operation even if battery voltage drops to 6 V during engine crank, making it fully compatible with Start-Stop vehicles.