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    Okay, I've been thinking of my next jukebox build and I have some good ideas but one thing thats been an issue is sound output.

    I currently use an Altec Lansing Sub with Car Audio speakers and it works really well BUT it's maximum volume is not what it should be. This is more the fault of using pc spec'd sub/amp.

    Anyway the other option is to use home audio equipment but most is too damn big for what I want so I did some hunting and cam across this as an example of what I'm looking for:

    http://cgi.ebay.com.au/Tripath-Class...lenotsupported

    My question is, what are the downsides of something like this? Would it do what I was after? What sort of RMS/PMPO should I be looking for? I have no bloody idea

    Brad
    My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

  • #2
    Originally posted by Brad View Post
    Okay, I've been thinking of my next jukebox build and I have some good ideas but one thing thats been an issue is sound output.

    I currently use an Altec Lansing Sub with Car Audio speakers and it works really well BUT it's maximum volume is not what it should be. This is more the fault of using pc spec'd sub/amp.

    Anyway the other option is to use home audio equipment but most is too damn big for what I want so I did some hunting and cam across this as an example of what I'm looking for:

    http://cgi.ebay.com.au/Tripath-Class...lenotsupported

    My question is, what are the downsides of something like this? Would it do what I was after? What sort of RMS/PMPO should I be looking for? I have no bloody idea

    Brad
    I once heard "P.M.P.O." referred to as "Peak Marketing Power Output" as it is a load of codswollop.

    Here is the thing: the unit is powered by a 12v 2Amp supply. Therefore if it were 100% efficient (which it won't be) the MAX power this thing can "send" to the speakers is 24 Watts (or 12 Watts per channel).

    I think you may be underwhelmed by this amp too - it cannot deliver what it promises... (although it may deliver this bit "It has flash rainbow light in the front panel and very colorful at night" )

    cheers
    Jacob

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    • #3
      Originally posted by AskJacob View Post
      I think you may be underwhelmed by this amp too - it cannot deliver what it promises... (although it may deliver this bit "It has flash rainbow light in the front panel and very colorful at night" )

      cheers
      Jacob
      LOL thanks for that yes I'm not after the light thats for sure and wasn't necessarily looking at this particular item, just for something similiar that wasn't going to cost me hundreds.

      Cheers,
      Brad
      My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

      Comment


      • #4
        Honestly, it depends more on how efficient your speakers are. 10W per channel could be all you need.

        If you are using car speakers you need to keep in mind they are 4ohm, make sure any amp module you look at can handle that load. The volume problem you have may be that the altec lansing gear is expecting an 8ohm speaker...

        There are hundreds of car audio amps out there, and a lot are cheap enough to try. I'd skip that unit you were looking at as it seems more aimed to the "mp3 player booster" crowd.

        Cheers
        Jacob

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        • #5
          Originally posted by AskJacob View Post
          (although it may deliver this bit "It has flash rainbow light in the front panel and very colorful at night" )

          cheers
          Jacob
          The best action is wrist action!!!!!!

          Comment


          • #6
            So again maybe not this particular model but something along these lines?

            http://cgi.ebay.com.au/500W-Stereo-P...lenotsupported

            Cheers,
            Brad
            My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

            Comment


            • #7
              One thing I learnt when I built the sound system for my first car about 6 years ago was not to skimp on amps. I used some shitty Sony XPlode and some Autobahn brand, they all sounded like shit, didn't last long, just shit. Went and bought some decent amps for my subs and splits and they fired without a hitch for 5 years till I sold it all.

              What would the USB Out jack do on that second one...
              Fan of good aussie hard rock n' roll?
              Check us out:

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              • #8
                Originally posted by gints View Post

                What would the USB Out jack do on that second one...
                give about 5v 1/2A for charging your ipod/mp3 player.

                Cheers
                jacob

                Comment


                • #9
                  Originally posted by gints View Post
                  What would the USB Out jack do on that second one...
                  Marketed as a USB charger for iPods etc, especially as these units are designed to boost the output of portable media players

                  Brad
                  My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

                  Comment


                  • #10
                    Brad I hope you don't mind if I weigh in on this discussion with similar questions.

                    I've been contemplating building a dedicated jukebox too, with a touch screen 15" PC on a top unit, that sits on top of an 'audio unit' underneath, which contains a suitable amp, a single 10" or 12" subwoofer, and two speakers. The idea being that you can take the jukebox (PC) on its own and plug it into a bigger stereo, or use it as an all-in-1.

                    Similar to you, my trouble has been with selecting the amplification/audio gear. I'm inclined to go with car audio speakers & sub because they're more affordable at a component level (ie without all the enclosures/etc from home audio)... however I've always gotten stuck with the 12v power supply side.

                    AJ/others, I figured on getting a 4 chan car amp, bridging two of the channels for the sub (with the right frequency control on the amp I expect), and running the other two to the speakers? More importantly, what are the implications of using a 240v > 12v transformer? Would an arcade PSU do the job, or not enough amps? What are the alternatives?
                    My Projects
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                    • #11
                      Go for it Dale. the more input the better. Funny you should mention your plans. I'd originally planned to do a 2 piece version.

                      Top half detaches and is self contained with either PC Style 2:1 AND Home audio Output ports.

                      When combined with bottom half outputs to bottom set of Amp and satelites with home audio equipment.

                      Then I thought about it and realised that if I was going to make a 2 piece unit, I'd be able to transport it easily anyway so no point in this design. I could however change my mind.

                      The option I'm looking at now it a single unit with 2 monitors.

                      I have a 19" touchscreen which would be at the top and be used for the main display.

                      My other touchscreen is a 15" model and I would use this for software display. Basically track/video selection.

                      The lower 15" touchscreen is framed and I would have it hinged so it could swing up/down for storage, movement etc but when in use be angled and high enough for easy viewing and use.

                      The base of this unit would house a sub and 2 speakers.

                      I'd then finish the unit off with LED lighting driven by the LED Wiz I have.

                      Brad
                      My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

                      Comment


                      • #12
                        Originally posted by dmworking247 View Post
                        Brad I hope you don't mind if I weigh in on this discussion with similar questions.

                        I've been contemplating building a dedicated jukebox too, with a touch screen 15" PC on a top unit, that sits on top of an 'audio unit' underneath, which contains a suitable amp, a single 10" or 12" subwoofer, and two speakers. The idea being that you can take the jukebox (PC) on its own and plug it into a bigger stereo, or use it as an all-in-1.

                        Similar to you, my trouble has been with selecting the amplification/audio gear. I'm inclined to go with car audio speakers & sub because they're more affordable at a component level (ie without all the enclosures/etc from home audio)... however I've always gotten stuck with the 12v power supply side.

                        AJ/others, I figured on getting a 4 chan car amp, bridging two of the channels for the sub (with the right frequency control on the amp I expect), and running the other two to the speakers? More importantly, what are the implications of using a 240v > 12v transformer? Would an arcade PSU do the job, or not enough amps? What are the alternatives?
                        Hmmmm, I bought an old pair of Energy 4.1e speakers (Home Audio) for $45. These were around $900 a pair back in the early 90's/ and I am pretty sure these will smoke over cheap car audio. They will be going in to my own jukebox and will just stay in their existing cabinet in a space in the bottom of the juke but behind some grill cloth.

                        The money you spend on inverter to get a car amp to run on mains power isn't worth it. Just use a home amp.

                        No an arcade PSU won't have anywhere near enough grunt to power a car amp.

                        I have said it many times on here but no-one seems to care but I will keep saying it: USE HOME AUDIO GEAR!!!!! Its just a lot easier.

                        Comment


                        • #13
                          Originally posted by spacies View Post
                          I have said it many times on here but no-one seems to care but I will keep saying it: USE HOME AUDIO GEAR!!!!! Its just a lot easier.
                          It's not that we don't believe you, it's just difficult/impossible to find home audio gear that is a) the small b) affordable

                          =(

                          Brad
                          My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

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                          • #14
                            Brad, what do you mean by small?
                            How big we talking here? Driver size?

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                            • #15
                              LOL sorry, more like area of unit.

                              My current one is a lowboy which I want to restore to a proper arcade cab. My future one whilst taller is much leaner in depth so not a lot of room for home audio gear if at all.

                              Brad
                              My Projects - Space Invaders Bartop, Williams A-Go-Go, Galaxian Bartop, Jukebox Kiosk 1&2, Jukebox Kiosk 3, Virtual Minipin, Generic Upright, MultiCab, Rampage,

                              Comment

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