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

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

SKU: MFOUR

No Longer Available. Please contact us for recommendations or alternatives. (02) 4257-2636

Shipping information

We offer fast and reliable shipping options to ensure that your order arrives in a timely manner. Our dedicated team works diligently to process and ship your items as quickly as possible.

Here are some key points to note about our shipping policy:

Standard Shipping

  • Frankies offers a $15.95 flat rate for Australia-wide shipping, no matter how many items you order. Some larger or heavier items may incur an additional fee, which will be communicated to you when your order is processed.
  • While we endeavour to dispatch all orders promptly, please be advised that due to the current national fuel shortages in Australia and the resulting pressure on logistics networks, order processing and dispatch may take up to 7 business days. We are not liable for delays caused by third-party freight carriers or fuel-related logistical disruptions. By placing an order, you acknowledge that delivery timeframes may be extended beyond our standard estimates during this period.

Estimated delivery times:

  • WA, NT, and TAS: currently experiencing longer shipping times
  • Holiday periods (e.g. Christmas): deliveries may be delayed due to increased freight volumes

Express Shipping

  • Express shipping is available and calculated based on your delivery location, as well as the size and weight of your order. To receive an accurate quote, please contact our Albion Park Rail store and request an "express shipping quote." Our team will promptly assist with pricing and availability. Payment for express shipping can be securely arranged over the phone.

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Product features

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.