Garmin

Garmin Fusion Apollo Marine Amplifiers - Monoblock, 4, 6 & 8

Regular price $749.00 USD
Channel 1 4 6 and 8: Monoblock (1 Channel)

Pairs well with

Garmin Fusion Apollo Marine Amplifier - front view hero shot
$749.00 USD
Monoblock (1 Chan...
FREE Shipping!
Guaranteed Lowest Price Online! - Find a lower price and we'll beat it!
Satisfaction Guaranteed | Need Help? Call (888)-884-2234

Payment and security

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Garmin Fusion Apollo Marine Amplifiers


Description

The Fusion Apollo Marine Amplifier series delivers serious on-water audio performance, designed exclusively for use with Fusion DSP-enabled marine stereos. Whether you're powering a dedicated subwoofer with the 650-watt RMS monoblock or driving eight channels of full-range audio across your entire vessel, these amps are built to keep the music going without draining your battery. The Class D amplifier design ensures maximum efficiency, giving you more sound for less power draw. Every model in the lineup features Fusion True-Marine construction, rigorously tested against salt fog, UV exposure, temperature extremes, and vibration - so they're ready for whatever conditions you encounter on the water. Easy Tune technology automatically optimizes your audio settings via the Fusion Audio app, eliminating the need for manual tuning. From compact zone expansion to flagship multichannel power, the Apollo amp series makes premium marine audio straightforward.


Key Features

  • Easy Tune Feature: Automatically regulates audio settings via the Fusion Audio app - no manual adjustments needed for optimal sound quality.
  • Class D Amplifier Design: Highly efficient amplifier class delivers impressive power while minimizing battery drain on your vessel.
  • Fusion True-Marine Construction: Tested against salt fog, UV, temperature extremes, and vibration for lasting durability season after season.
  • Conformal-Coated PCBs: Circuit boards are specially coated to resist moisture and marine elements, protecting internal components.
  • LED Indicator: Built-in LED alerts you to potential issues with electrical currents, short circuits, or temperature problems at a glance.
  • Ignition Protected (SAE J1171): Ignition-protected design adds peace of mind and meets safety standards for marine environments.
  • 2-Ohm Stable: Connect up to two speakers per channel for flexible setup configurations and greater system versatility.
  • Minimal Distortion & Noise: Engineered for clean, high-quality audio even at higher volumes - no sacrifice in sound fidelity when you push the volume.
  • Mounting Brackets Included: Pre-included brackets make onboard installation simple and straightforward without additional hardware purchases.
  • Compatible with Fusion DSP Stereos: Works exclusively with Apollo RA770, RA670, WB670, and RA210 stereos for fully integrated audio control.
  • 3-Year Warranty: Backed by a Garmin 3-year limited warranty for confidence in your investment.

Channel Options & Which to Choose

  • Monoblock (1 Channel) - 650W RMS: A 2000-watt peak, 650-watt RMS monoblock designed specifically to power a subwoofer. Ideal for boaters who want deep, powerful bass to anchor their sound system. At 2-ohm load, it delivers 1100W RMS for even more punch.
  • 4 Channel - 150W RMS per Channel: Powers up to four pairs of speakers or two pairs plus one subwoofer (bridged). Includes high-power mode adapters for bridging. Best for small-to-mid-size boats with moderate audio zone needs.
  • 6 Channel - 150W RMS per Channel: Powers up to six pairs of speakers or four pairs and one subwoofer (bridged). A great mid-tier option for larger boats or setups needing expanded coverage without going to a full 8-channel system.
  • 8 Channel - 150W RMS per Channel: The most powerful multichannel option, capable of driving up to eight pairs of speakers or four pairs of speakers and two subwoofers (bridged). Perfect for large vessels with multiple audio zones requiring maximum flexibility and output.

Shipping

Ships free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.


What's Included

  • One Apollo amplifier (Monoblock, 4, 6, or 8 channel depending on selected variant)
  • One mounting bracket
  • One power connector
  • Speaker connector(s) - quantity varies by channel count (4-channel and above include high-power mode adapters for bridging)
  • Four 8-gauge flat head self-tapping screws
  • Four 8-gauge pan head self-tapping screws (for mounting bracket)
  • Four screw covers
  • Mounting template
  • Installation instructions
  • Important Safety and Product Information (ISPI)

Why You'll Love It

The Fusion Apollo amplifier lineup is trusted by serious boaters who demand more than average on-water audio. Garmin's engineering pedigree shines through in every detail - from the conformal-coated circuit boards that shrug off spray and humidity, to the smart LED diagnostics that keep you informed without needing to open the amp. The Easy Tune feature means your system sounds its best from the moment it powers on, while the efficient Class D design helps preserve your battery for the things that matter most on the water. Compatible with an ecosystem of Fusion Apollo stereos and speakers, these amps slot seamlessly into a complete, integrated marine audio setup. Built to handle the demands of daily on-water use and engineered to last season after season, the Apollo series is the natural choice for boaters who take both their adventures and their audio seriously.


Product Specifications
Warranty 3 years
Channels Available Monoblock (1), 4, 6, 8
Amplifier Class Class D
RMS Power @ 4 Ohm (Monoblock) 650W x 1
RMS Power @ 4 Ohm (4-Channel) 150W x 4 / 580W x 2 (Bridged)
RMS Power @ 4 Ohm (6-Channel) 150W x 6 / 580W x 3 (Bridged)
RMS Power @ 4 Ohm (8-Channel) 150W x 8 / 580W x 4 (Bridged)
RMS Power @ 2 Ohm (Monoblock) 1100W x 1
RMS Power @ 2 Ohm (4-Channel) 290W x 4
RMS Power @ 2 Ohm (6-Channel) 290W x 6
RMS Power @ 2 Ohm (8-Channel) 290W x 8
Frequency Response 20 Hz - 20 kHz (+0, -1 dB)
Height (Monoblock/4/6/8-Channel) 7.06" (180 mm)
Width (Monoblock/4-Channel) 9.25" (235 mm)
Width (6-Channel) 11.69" (297 mm)
Width (8-Channel) 14.13" (359 mm)
Depth (Monoblock/4/6/8-Channel) 1.75" (45 mm)
Weight (Monoblock/4-Channel) 4.85 lbs (2.2 kg)
Weight (6-Channel) 5.95 lbs (2.7 kg)
Weight (8-Channel) 6.94 lbs (3.15 kg)
Water/Dust Rating (Monoblock/4/6/8-Channel) IPX2
Operating Temperature 32 to 122 F (0 to 50 C)
Input Impedance (Monoblock/4/6/8-Channel) 22 kOhm
Fuse Rating (Monoblock/6/8-Channel) 125 A electronic fuse (no replacement necessary)
Fuse Rating (4-Channel) 85 A electronic fuse (no replacement necessary)
Ignition Safety Protected SAE J1171
Assembly Required Minimal - mounting brackets and hardware included; professional installation recommended
Shipping Method Standard parcel shipping

FAQ

Are the Fusion Apollo amplifiers compatible with any marine stereo?

No - the Fusion Apollo amplifiers are designed exclusively for use with Fusion DSP-enabled marine stereos. Compatible head units include the Apollo RA770, Apollo RA670, Apollo WB670, and the RA210. They are not compatible with third-party or non-DSP Fusion stereos. If you're unsure whether your current stereo is compatible, check for DSP (Digital Signal Processing) capability in your stereo's specifications.

What is the Easy Tune feature and how does it work?

Easy Tune is an automatic audio optimization feature that adjusts your amplifier's audio settings for the best possible sound quality without any manual tuning. It requires initial setup using the Fusion Audio app on a compatible smartphone. Once configured, Easy Tune continuously regulates settings so you always get clean, balanced audio across your speakers - even as conditions change on the water.

Can I use the monoblock amplifier to power regular speakers?

The monoblock amplifier is specifically designed to power a subwoofer and delivers 650W RMS at 4 ohms (or 1100W at 2 ohms). While it could technically drive a speaker, its single-channel output and subwoofer-focused power delivery make it best suited for bass duties. For full-range speakers, opt for the 4, 6, or 8 channel amplifier models.

What does bridging the amplifier do?

Bridging combines two channels into one to deliver significantly more power to a single speaker or subwoofer. For example, the 4-channel amplifier produces 150W per channel normally, but when bridged, it delivers 580W per pair of channels. High-power mode adapters are included with the 4, 6, and 8 channel amplifiers to make bridging simple. This is useful when you want to add a subwoofer to a multichannel setup without purchasing a separate monoblock.

How waterproof are these amplifiers?

The Monoblock, 4-Channel, 6-Channel, and 8-Channel amplifiers carry an IPX2 rating, meaning they are protected against dripping water at up to a 15-degree angle. They are not fully submersible. In addition, conformal-coated circuit boards and Fusion True-Marine construction provide added protection against salt fog, humidity, UV, and vibration. These amps are built for real marine environments but should be mounted in a protected location away from direct water immersion.

Do I need professional installation?

The amplifiers include mounting brackets, hardware, and an installation template to simplify setup. However, marine amplifier installation involves working with your vessel's 12V electrical system, running power and ground cables, and integrating with your stereo system. While experienced DIYers can handle the install, professional marine audio installation is recommended to ensure safe wiring, proper grounding, and optimal performance from your system.

Product specifications table
Specification name Specification Value
Best uses Maritime activities
Color pattern White, Black
Mounting type Built-in
Power source Vehicle electrical system, DC-powered

Recently viewed