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The Down4Sound MM1004 Mini Maxx is a compact Class‑D 4‑channel amplifier designed to deliver surprisingly high output in a very small footprint. With a continuous RMS output of 700 W, it’s a flexible choice for powering mid/high speakers or a mix of full-range and bass without taking up much space. The “mini” form factor makes it ideal for installations under seats, behind panels, or in other tight automotive environments.

Key Benefits

• Versatile Power Output:
• 100 W × 4 @ 4 Ω 
• 150 W × 4 @ 2 Ω 
• Bridged (4 Ω): 300–350 W × 2 
• Compact & Install-Friendly: Mini footprint for tight installs; yet still powerful. 
• Flexible Crossovers: High-pass (20–800 Hz) and low-pass (50–800 Hz) filters with ×1 / ×10 options, making the amp band-pass capable. 
• Protection Features: Includes a clipping indicator to warn when the amp is reaching its limit. 
• Wide Operating Voltage: Designed to work in many car electrical setups (9 V – 15.5 V). 

Technical Specifications

• 4 Ω RMS Power: 100 W × 4 
• 2 Ω RMS Power: 150 W × 4 
• 4 Ω Bridged Power: 300–350 W × 2 
• Frequency Response: 10 Hz – 23.8 kHz 
• Signal-to-Noise Ratio: ~93 dB 
• Damping Factor: 100 
• Input Sensitivity: 0.2 V – 6 V 
• High-Pass Filter CH1/2: 20 Hz – 800 Hz (×1 / ×10) 
• Low-Pass Filter CH1/2: 50 Hz – 800 Hz (×1 / ×10) 
• High-Pass Filter CH3/4: 20 Hz – 800 Hz (×1 / ×10) 
• Low-Pass Filter CH3/4: 50 Hz – 800 Hz (×1 / ×10) 
• Working Voltage: 9 V – 15.5 V 
• Physical Dimensions & Weight
• Dimensions: 8.66″ L × 4.87″ W × 2.13″ H 
• Weight: ~12 lb 

Installation & Compatibility

Because of its small size, the MM1004 is ideal for tight installations (under seats, in small 
Use 4-gauge power / ground wiring to ensure stable current supply. 

The crossover design allows you to run the amp in full-range, or split mids/highs and bass between channels using the band-pass capability.

Monitor the clipping indicator during tuning to prevent distortion or potential damage.

FAQS

• What makes the Down4Sound MM1004 a good choice for my car audio system?
  The MM1004 is designed for clean, powerful output and reliable performance, making it ideal for builds that demand high-efficiency power from a compact amplifier.
• Can the Down4Sound MM1004 run multiple speakers at once?
  Yes, the MM1004 supports multi-channel setups and can run multiple mids, tweeters, or coaxial speakers depending on your wiring configuration.
• Is the Down4Sound MM1004 suitable for subwoofers?
  While it can power small subs, the MM1004 is best used for mids and highs due to its channel layout and RMS rating.
• Does Livewire Audio offer installation guidance for the MM1004?
  Yes, Livewire Audio helps customers with setup tips, wiring recommendations, and product compatibility to ensure proper installation.