Why Upgrade to the Planet Audio AC1800.5?
Because juggling multiple amps is fun… until it isn’t.
This unit gives you:
- 1800W max output – enough to wake up your entire system
- 5-channel design – 4 channels for speakers + 1 dedicated sub channel
- Full-range capability – flexible system configurations
- Built-in crossovers – tune highs, mids, and bass properly
- High & low level inputs – works with factory or aftermarket head units
It’s the cleanest way to upgrade your entire system without overcomplicating things.
Power – 300 max x 4 @2 Ohms plus 5th channel 600 max x 1 @2 Ohms, 150 max x 4 @4 Ohms plus 5th channel 300 max x 1 @ 4 Ohms, 600 max bridged x 1 @4 Ohms
One Amp to Run Everything
This is where the AC1800.5 shines:
- Channels 1–4 power your front and rear speakers
- Channel 5 powers your subwoofer
No stacking amps. No excessive wiring. No headaches.
Perfect for:
- Daily drivers upgrading factory audio
- Budget builds that still want solid performance
- Clean installs with minimal space
Class A/B Topology – Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal
Full Range – With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
Planet Audio AC1800.5 5 channel amplifier 1800W car audio – Key Features
- Class A/B design (full-range channels) for cleaner sound quality
- Dedicated subwoofer channel for strong low-end output
- Variable high-pass & low-pass crossovers for system tuning
- Bass boost control for added low-end punch
- MOSFET power supply for stable power delivery
- Compact chassis for easier installation
Because not everyone wants a trunk full of amps just to hear bass.
MOSFET Power Supply – A MOSFET is an electrical switch that allows the flow of electrical current. It controls the output voltage and current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry
Low & High Level Inputs – A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
Installation & Compatibility
This amp is designed to work with pretty much everything:
- Aftermarket head units (RCA inputs)
- Factory radios (high-level inputs)
- Compatible with 2-ohm and 4-ohm speaker setups
Recommended setup tips:
- Use proper power/ground wiring (don’t sabotage your own system)
- Set gains correctly to avoid distortion
- Pair with decent speakers/subs—this amp can only do so much if your speakers are trash
Variable Bass Boost – With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
Bridgeable – Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
Real-World Performance
After install and tuning, expect:
- Much louder overall system volume
- Cleaner sound across all frequencies
- Stronger, more controlled bass
What you won’t get:
- Competition-level SPL numbers
- Magic fixes for bad speaker placement
But for a daily setup? This hits the sweet spot.
Specs – Dimensions – Depth 19.7” x Width 10” x Height 2.4”, Weight – 14 lbs.
Planet Audio provides a powerful 6-year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality
Why Choose Planet Audio?
Planet Audio is known for delivering affordable, entry-to-mid-level audio solutions that get the job done:
- Budget-friendly pricing
- Easy install and versatility
- Solid performance for daily use
Perfect for upgrading your system without going full audiophile (or full broke).
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