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.