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$399.99
✔ 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
The 8” That Actually Smashes.
The DC Audio M4 8” Subwoofer was built for customers who wanted a true high-output 8” — not a shallow toy sub.
This is a long Xmax, power-handling 8” designed to:
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Smash the lows
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Handle real amplifier power
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Fit tighter spaces than a 10”
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Deliver aggressive low-frequency output
If you need more output than a 6.5” but don’t have room for a 10”, this is your solution.
🔥 Power Handling
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800 Watts RMS
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1600 Watts Peak
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Available in Dual 2Ω (D2) and Dual 4Ω (D4)
This sub is capable of real amplifier power — not entry-level numbers.
Ideal pairings:
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PS-1000x1
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PS-2000x1 (conservative gain)
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PS-1200x4 bridged
🧠 Designed for Low Frequency & Power
The M4 8” features:
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Tall roll stitched surround
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Oversized spiders
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Taller custom cast frame (larger than previous generation)
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Bolted-down spaced spider design for linearity
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Gap-cooled motor structure
The 2.5” voice coil allows significantly improved thermal handling compared to smaller 8” subs.
This design improves:
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Low frequency reproduction
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Mechanical control
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Thermal durability
💪 Build Features
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Extremely rigid non-pressed paper cone
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High roll stitched multilayer polymer surround
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Laminated spaced roll spiders
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Sewn flat heavy-duty tinsel leads
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Custom cast aluminum black frame
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Fully CNC-machined FEA optimized motor
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Rubber mounting gasket
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Custom tooled motor boot
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DVC 2.5” Copper voice coil
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19mm Xmax
This is a real subwoofer — just compact.
📊 Technical Specifications
| Specification | D2 | D4 |
|---|---|---|
| RMS / Peak | 800 / 1600 | 800 / 1600 |
| Mounting Depth | 7.0" | 7.0" |
| Mounting Hole | 7.5" | 7.5" |
| Outside Diameter | 8.75" | 8.75" |
| Voice Coil | 2.5" | 2.5" |
| Displacement | 0.15 ft³ | 0.15 ft³ |
| Fs | 44.5 Hz | 47.4 Hz |
| Xmax | 19mm | 19mm |
| Suggested Ported | 0.85 ft³ | 0.85 ft³ |
(Sealed enclosure specs available upon request based on build goals.)
📦 Recommended Enclosure
Ported: 0.85 ft³ per sub
This sub performs best in properly tuned compact ported enclosures designed for strong low-end response.
Perfect for:
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Behind-seat truck builds
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Center console enclosures
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Compact custom builds
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Space-limited daily systems
🎯 Ideal For
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Single cab truck builds
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Compact loud daily systems
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Small box high-output builds
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Customers who want more than a 6.5”
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Tight space applications needing serious bass
📦 What’s Included
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DC Audio M4 8” Subwoofer
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Rubber Mounting Gasket
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Motor Boot