Fusion Apollo Amps, easy tuning and powerful sound

Ben Stein

Ben Stein

Publisher of Panbo.com, passionate marine electronics enthusiast, 100-ton USCG master.

10 Responses

  1. Orlando R Davis says:

    Hi Ben,

    Not quite sure how you do it, but you always seem to have a write up on what I am thinking of doing next! What a great write up on the Fusion amps, I have been thinking this is exactly what my next upgrade is going to be and well thanks to you it is definitely this!


  2. Grant Jenkins says:

    Impressive upgrade, Ben. I’m afraid I know the answer – but any idea if the Easy Tune system will be backwards compatible with the MS-AM504 I installed last year? I remember accessing those small screws was not exactly optimal….

    • Ben Stein Ben Stein says:

      How about sort of? I think you already do get a lot of the benefit of easy tune with the amp you have, except that you have to preset the gain controls according to what the app tells you. But, once that’s done you get a lot of the benefits of being able to control the rest of the sound from the head unit.

      I’m not sure if you get gain control, but I can’t see why you wouldn’t or couldn’t.

      -Ben S.

  3. Enrique says:

    Fusion has built a “closed environment” for audio, where you can only use Fusion equipment. I usually adjust the amplifiers before installing them, is much more comfortable, except on JL mvi, true DSP that you adjust with a computer. I believe a lot of “installers” will mount them without any adjustments.

  4. Tommy says:

    After Purchasing the Ra770 Headunit, 4 ax70 remotes, a 6 channel Fusion Apollo Amp, and a pair of series 3 8.8 speakers I just found out that I can not use these with my 2 pairs of already installed JL Audio speakers. They can’t be serious??? Can they. If Garmin thinks that I would even dream of giving up my precious (and ridiculously expensive) JL audio speakers in favor of their series 3 speakers they must be off their rocker! Any advice to those of us who plan on keeping some or all of their existing speakers? I read the manual tonight before my install in the morning and the manual clearly says that my Apollo Amp can ONLY be used with fusion speakers. What is proprietary to their speakers that no other round cone can do the same? Did they not think that there are boats with JL audio speakers installed on them? I see the app has you enter which fusion speakers you have, is there a 3rd party do at your own risk setting? While I’ve heard good things about the Fusion line of speakers I know that my JLs will outlast, outpower, and out-perform their series 3 speakers If I have to choose one or the other, I will be boxing all this gear up tomorrow. Any help or advice would be much appreciated. Thanks for the excellent article, I was basically over here drooling in anticipation of getting it all hooked up. Please tell me I still can! Thanks Ben!

    • Enrique says:

      Signature and JL are 4 ohm speakers, and Jl are more power handling capable, so it should work.

    • Ben Stein Ben Stein says:


      I’d say Garmin is quite serious about using only their speakers. The Apollo series amps are designed for full Fusion systems. The Apollo amps only have DSP profiles for Fusion speakers. There’s no electrical incompatibility or anything that will stop them from powering another speaker. But, there aren’t DSP profiles for other brands of speakers, and since there’s no tuning controls on the amp itself, DSP profiles are the way to go.

      The signature series amps include generic profiles for other brands of speakers. Though, I would say that in a head-to-head comparison the Apollo amp is a clearly superior product.

      -Ben S.

  5. 1v1 lol says:

    For audio, Fusion has created a “closed environment” where only Fusion gear is allowed. Except for the JL mvi, which has genuine DSP that you set with a computer, I often tweak the amplifiers before putting them since it is much more comfortable. Many “installers,” in my opinion, will likely mount them without making any changes.

  6. chris says:

    total bummer about the closed system. The amp looks great and I was all in using it with my RA770. BUT I am equally old on the JL M3 speakers and not having a DSP profile in the amp and not being able to modify the Apollo amp to drive these is a bummer. Garmin would do well to include a few generic DSP profiles for use with non Garmin speakers

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