HELIX M FOUR | 4-Channel Class D Amplifier – 100W RMS Per Channel

HELIX M FOUR – 4-Channel Class D Digital Amplifier | 100W RMS Per Channel

Get premium sound in a compact footprint with the HELIX M FOUR. This advanced 4-channel digital amplifier outputs 100 Watts RMS per channel at both 4Ω and 2Ω loads, ideal for front and rear speaker upgrades. With its highly efficient Class D topology and Start-Stop compatibility, the M FOUR is a powerhouse engineered for modern car audio systems.

Key Features:

• 4 x 100W RMS @ 4Ω / 2Ω
• Bridgeable: 2 x 200W RMS @ 4Ω
• Smart high-level input with ADEP circuit (Advanced Diagnostics Error Protection)
• Start-Stop capable – operates down to 6V
• Integrated crossover with adjustable high-pass, low-pass, and band-pass
• Ultra-compact size: 50 x 230 x 154mm
• Illuminated HELIX logo, clean design

Audio Tuning and Flexibility:

• Adjustable frequency range: 10Hz – 30kHz
• High-pass: 15Hz – 4kHz
• Low-pass: 40Hz – 4kHz
• Input sensitivity: RCA: 0.5–6V | High-Level: 1.3–13V
• Signal-to-noise ratio: 98dB (A-weighted)
• Distortion (THD): 0.05%

Installation & Build:

• Class D architecture for low heat and high efficiency
• SMD construction for durability in compact spaces
• Start-Stop ready & OE integration safe
• Dual 30A maxi fuses for stable protection

What's in the Box:

• 1 x HELIX M FOUR Amplifier
• 1 x Mounting hardware kit
• 1 x Instruction manual

The HELIX M FOUR is your go-to 4-channel amplifier for compact, high-output, and OE-friendly installations—perfect for powering front and rear speakers in full-range audio systems.