Sky High Car Audio 1600.4 Amplifier

The SHCA1600.4 is Sky High’s compact workhorse: a Korean-built, Class D 4-channel that delivers clean, controlled power with the same modular mounting and customization system as the big amps. Whether you’re running an active front stage, pro audio door build, or a clean daily setup with mids and highs, this amp is designed to stay cool, stay stable, and stay in control.

 

With 2 ohm stereo / 4 ohm bridged capability, full analog controls, and ultra-fast switching, the SHCA1600.4 gives you the flexibility to grow your system while keeping your footprint small and your install super clean.

 

 

 

 

Core Highlights

 

 

| Korean Built | Class D | 2Ω Stable | Individually QC Tested | Full Active Capable | Ultra Fast Switching | Balanced Input Circuit | Onboard Synchronizer | Bridgeable | 3 Levels of Modular Cooling | Premium Customization in Color, Mounting & Appearance | Acrylic Back | Expansion-Ready |

 

 

 

 

Power & Ratings

 

 

• Minimum Ohm Ratings (Per Configuration):
  
• 2 ohm per channel (stereo mode)
• 4 ohm bridged
• Not 1 ohm rated – wiring below 2Ω stereo or 4Ω bridged is not supported or warrantied
• Rated Output:
  
• Rated at 13.2V @ 2Ω per channel @ 1000Hz (all channels loaded)
• Operating Voltage:
  
• Up to 17.0VDC max operating voltage
• Warranty:
  
• 1-Year Manufacturer Warranty covering manufacturer defects from date of purchase
• Korean Engineered & Assembled:
  
• Designed from the ground up by engineers using world-class components
• Optimized around Sky High’s modular mounting and cooling ecosystem

 

 

 

 

 

Dimensions & Install Flexibility

 

 

• Dimensions:
  
• 11.81” (L) × 9.92” (W) × 3.13” (H)

 

 

Compact enough for:

 

• Glovebox or under-seat installs
• Clean wall-mounted layouts
• Stacked or vertical “amp rack” style builds

 

 

 

 

 

Wiring & Channel Configurations

 

 

Run the SHCA1600.4 exactly how your system needs:

 

• 4-Channel Mode:
  
• Full-range stereo across all four channels
• 3-Channel Mode:
  
• Channels 1 & 2 as individual full-range
• Channels 3/4 bridged for a dedicated mid-bass or sub channel
• 2-Channel Mode:
  
• Channels 1/2 bridged + channels 3/4 bridged

 

 

RCA Input Options:

 

• Can be run from 2 or 4 channels of input, depending on your signal setup

 

 

Perfect for active front stages, pro audio doors, and flexible multi-speaker builds.

 

 

 

 

Efficiency & Airflow

 

 

• High-efficiency circuit layout reduces internal heat and electrical stress
• Standard acrylic backplate with internally mounted cooling fan
• Designed to handle:
  
• Long demo sessions
• High-output daily use
• Hot environments, without heat-soak drop-off

 

 

 

 

 

Customization That Stands Alone

 

 

Flippable Branding System

 

• Diamond-cut aluminum Sky High logo and model plates
• Fully reversible for clean orientation in any mounting position (vertical, horizontal, stacked)

 

 

Modular Center Panel (Sold Separately)

Drop-in customizable overlays with no adhesives or heavy fab work needed:

 

• Forged carbon
• Mirror stainless
• Paint-matched aluminum
• Acrylic/plexi light-up options
  Just unbolt, swap, and re-install.

 

 

 

 

 

Power Input Flexibility

 

 

Input Expansion Kits (Sold Separately)

 

• Add more 12V power delivery points for high-demand builds
• Available in:
  
• Cast aluminum
• CNC’d aircraft-grade aluminum
• Copper

 

 

Ring Terminal Adapters (Sold Separately)

 

• Ideal for tight fitments and ultra-clean panels
• Bolt-on design for secure, low-resistance connections

 

 

 

 

 

Cooling System Expandability

 

 

Passive Cooling Add-Ons (Sold Separately)

 

• Slide-in extruded aluminum heatsink overlays
• Increase surface area up to 25%
• Available in 5 color options and raw aluminum for custom finishes:
  
• Plain, powder-coated, dipped (gold/chrome/copper/rose gold), polished, and more
• Note: Non-anodized coatings can affect cooling performance

 

 

Active Cooling (Sold Separately)

 

• Push/pull fan kits mount to the extruded heatsink extensions
• Plug into the (4) onboard 12V outputs
• Optional thermal bridges for shared airflow between linked amps

 

 

2026 Water Cooling Ready

 

• Future bolt-on water-cooled heatsink system (in development)
• Includes pump, radiator, and lines (optional tank available separately)

 

 

 

 

 

CAT6 Remote System Compatibility

 

 

• Link up to 12 SHCA amps via CAT6
• Control: gain, subsonic, LPF, and phase from a single controller
• Monitor amp temperature and voltage
• Fully compatible with the Sky High Smart Bass Knob

 

 

 

 

 

Mounting Options for High-End Builds

 

 

As with every SHCA amplifier, the 1600.4 is built for modular mounting:

 

Bracket Kits (Sold Separately) Support:

 

• Stacking
• Vertical mounting (adjustable and static options)
• Floating wall installs
• Side-by-side linking

 

 

Use the proprietary slide-lock channels in the heatsink to secure your brackets.

 

Bracket Material Options:

 

• Extruded aluminum – lightweight and modular
• Cast aluminum – durable and economical
• Machined billet aluminum – show-grade

 

 

Optional Footless Endcaps

 

• Smooth, footless ends for flush mounting on clean walls or rail-based racks

 

 

 

 

 

Detented Signal Tuning

 

 

• Tactical detent (“click lock”) style potentiometers for:
  
• Low-Pass Filter
• High-Pass Filter

 

 

Lock in your tuning with tactile, repeatable adjustments—no guessing, no fine-tool needed, easy to match settings side-to-side.

 

 

 

 

SHCA1600.4 – Big Performance. Compact Footprint.

 

 

The SHCA1600.4 brings the same reliability, modular mounting, and visual customization as Sky High’s flagship amps—but in a smaller package that’s perfect for clean front stages, pro audio doors, or multi-amp systems. Compact, flexible, and expansion-ready, it’s built to power your current setup and whatever you decide to add next.