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PA off electric Generator, Inverter Required?

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  • #31
    True dat.
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    Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

    Currently product development engineer: Mesa Boogie

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    • #32
      Oh, I do compare apples to apples as far as actual audio output power. I use measured power, as best as I can do, not stated power. Yes, it is quite true that car audio power is grossly overstated to a point of complete bull****************. However, there are good car audio amps that put out respectable clean power that can be compared to lower end pro audio amps. It's hard to do a fair comparison, but I've been able to adjust for my purposes. The bottom end pro audio amps in powered mixers are almost as much BS as car audio, not quite, but close.

      I'll even reveal that the car amp I use is an MTX Audio X Thunder 704X, which I got on clearance at a Circuit City for about $120, as I recall. I run two Peavey PR10 on separate channels and a PR15 on the side bridged mono. The amp has built in tunable band pass filters that I can use as an active crossover. Yeah, it's not exactly big time audio, but it works for me and it's a hell of a lot better than any battery powered amps/PAs I've tried, and I think I've tried just about all of them. It's not hard to improve on these battery powered products because they are all complete crap, which provided me the motivation to roll my own system. I also realize that there's a limit to how much a battery powered system can scale, but there's still a lot of situations where I can use my system to get good sound at a value price with no hassle from the power/fumes/genset/you can't set up here music police. When you run on batteries you avoid a lot of problems in public places. Bring Your Own Batteries to jam along. If I had to bring a genset to play, a lot of places would be closed off to me, particularly indoors. The Man is always looking for an excuse to shut you down, that's his thing.

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      • #33
        I never said it can't or won't work, nor that it couldn't sound good either. A good friend of mine was the engineer for Linear Power years back and the amp designs were just fine as were the SMPS (DC-DC converters). It's just that the marketing folks took a good thing and tried to make it better through bull**************** numbers.
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        Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

        Currently product development engineer: Mesa Boogie

        Comment


        • #34
          No problem, I'm just stating what works for me, and how it might work for others instead of gensets, specifically for DJs doing remote gigs. I'm not here trying to dispute what anybody else is saying, only that I'll defend what my experience has been.

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          • #35
            Since we are on the subject of generators, I have a 36 ft, Motor home with a 50 amp Generator, would that work for live sound, it has 2 separate brk. a 20 amp and a 30 amp I always wondered about that. Thanks interesting subject.

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            • #36
              If that's an Onan genny (now part of Cummins) then it's typically a better quality product and within the limitation of the product should work just fine. For an audio load (dynamic) derate the genset to 50% of rated load to aid in regulation (both V & F)

              Is it propane?
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              Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

              Currently product development engineer: Mesa Boogie

              Comment


              • #37
                It's A gas I will most likely spell this wrong the generator is a Generac something like that. I'll check tomorrow.

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                • #38
                  That's another brand, some are ok and some are only so-so.
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                  Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

                  Currently product development engineer: Mesa Boogie

                  Comment


                  • #39
                    I'm running 2 mixers, a 200w peavy 5 channel, and a Pyle 600w along with a 2 channel wireless uhf receiver on a 3200 watt generator. (4000 watt peak) Any suggestions? I'm having to replace my old Marshall halfstack (175 watts) , and an older peavy 5 channel 200 watts mixer today. Though I believe the marshal burnt from moisture, I'm not sure why the peavy died. It receives, but it doesn't send on any channel. I purchased the two mixers above just now and was thinking the same issue that began this thread over the use of generators with pa equipment. I've found the thread to be interesting, but I need a bit more info from more experienced ppl than myself. From what I've read I feel that the 3200 watts should be sufficient for the 800 watts of power that the mixers are pulling, but if there is any other advice, I'm certainly willing to listen. I can't afford to replace this equipment every 6-12 months if there is something I can do to protect it. Thanks!
                    Last edited by Ministryman; 09-03-2017, 11:33 AM.

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                    • #40
                      I would heartily suggest a power conditioner, as most generators output is not particularly 'clean'. Fine for a refrigerator or lights, but not audio gear.
                      "We are currently experiencing some technical difficulties due to reality fluctuations. The elves are working tirelessly to patch the correct version of reality. Activities here have been temporarily disabled since the fundamentals of mathematics, physics and reason may be incomprehensible during this indeterminate period of instability. Normal service will be restored once we are certain as to what 'normal' is."

                      Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally used up and worn out, shouting '...man, what a ride!'
                      "The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively" ~Bob Marley

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                      • #41
                        It all depends... it all depends.
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                        Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

                        Currently product development engineer: Mesa Boogie

                        Comment


                        • #42
                          I provided the sound system for a local multi-band outdoor festival on August 5th.
                          A generator was provided: Predator 6500 (non-inverter).
                          Since the gen was a non-inverter I used my analog mixer along with my three crown amps.
                          No problem at all.
                          I am, however, hesitant to use my digital mixers on non-inverter gens...

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                          • #43
                            I hesitate to use anything I value on such a generator... inverter or not.

                            Something about using the cheapest generator on the planet with a pretty bad reliability history on expensive electronics. Of course your mileage may vary, but I don't care for the odds.
                            -------------------------------------------------------------------------------------------------------------------------------------------------------------------
                            Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

                            Currently product development engineer: Mesa Boogie

                            Comment













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