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DC Audio M4 6.5” Subwoofer – 300W RMS Compact High Output – Small Box Performance
  • DC Audio M4 6.5” Subwoofer – 300W RMS Compact High Output – Small Box Performance
  • DC Audio M4 6.5” Subwoofer – 300W RMS Compact High Output – Small Box Performance
  • DC Audio M4 6.5” Subwoofer – 300W RMS Compact High Output – Small Box Performance
DC Audio M4 6.5” Subwoofer – 300W RMS Compact High Output – Small Box Performance
Impedance
$249.99

✔ Direct fit for 1981–1991 K5 Blazer, Jimmy & Suburban
✔ Adjustable cup holder fits modern bottles & drinks
✔ Raises console for better ergonomics
✔ Clean interior upgrade without going overboard

• Ships from Paradise, California
• Built in small batches
• Secure checkout
• Trusted by Squarebody owners

• Designed for 1981–1991 K5 Blazer, Jimmy & Suburban center consoles
• Basic hand tools required
• Install time: approximately 15–30 minutes
• Consoles require minor trimming for Cup Holder Installation
• Unsure about your setup? Message us with a photo and we’ll confirm

As newer trucks and single cab builds continue shrinking interior space, the demand for serious bass in extremely limited airspace has exploded.

The DC Audio M4 6.5” Subwoofer was engineered specifically for:

  • Small sealed enclosures

  • Compact ported designs

  • Behind-seat truck installs

  • Center console builds

  • Tight custom enclosures

If you want real low-frequency reinforcement without sacrificing space, this is your solution.

🔥 Power Handling

  • 300 Watts RMS

  • 600 Watts Peak

  • Available in Dual 2Ω (D2) and Dual 4Ω (D4)

This sub is designed to perform efficiently in small airspace while still handling clean power.

🧠 Engineered for Small Enclosures

Unlike many small subs that struggle with low-end extension, the M4 6.5” is optimized for compact volumes while maintaining output and control.

Recommended Enclosure Per Sub:

  • Sealed: 0.15 ft³

  • Ported: 0.3 ft³

This makes it ideal for custom single cab applications.

💪 Build Features

  • Extremely rigid non-pressed paper cone

  • High-roll stitched multilayer polymer foam surround

  • Laminated Nomex spiders

  • Sewn flat heavy-duty tinsel leads

  • Die-cast DC aluminum frame

  • Rubber mounting gasket

  • Rubber motor boot

  • Fully CNC-machined FEA-optimized motor

  • 2.0” Copper DVC voice coil

  • 16mm Xmax

Built like a real subwoofer — not a toy.

📊 Technical Specifications

Specification D2 D4
RMS / Peak 300 / 600 300 / 600
Mounting Depth 5" 5"
Mounting Hole 6.02" 6.02"
Outside Diameter 7.25" 7.25"
Voice Coil 2.0" 2.0"
Displacement 0.05 ft³ 0.05 ft³
Fs 47.9 Hz 46.41 Hz
Qts 0.456 0.490
Xmax 16mm 16mm
Suggested Sealed 0.15 ft³ 0.15 ft³
Suggested Ported 0.3 ft³ 0.3 ft³

🎯 Ideal For

  • Single cab truck builds

  • Behind-seat enclosures

  • Compact sealed boxes

  • Custom console sub designs

  • Space-limited installs

  • Clean daily drivers

This sub is about smart bass — not wasted space.

🔌 Ideal Amplifier Pairings

  • DC Audio PS-1000x1 (conservative power)

  • DC Audio PS-1200x4 (bridged channels)

  • Compact 500–800W monoblocks

Electrical demand is modest, making it ideal for stock alternator systems.

📦 What’s Included

  • DC Audio M4 6.5” Subwoofer

  • Rubber Mounting Gasket

  • Motor Boot

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