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Thread: Project: Mac Mini / Protegé5

  1. #31
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    Quote Originally Posted by sdashiki View Post
    wont know until you try, but id estimate the output voltage of the Mini to be nothing compared to anything else you would use. 3v is the minimum id feed my amps, and 5v+ is better!
    Mac Mini outputs line level audio, which is LOW LOW voltage.

    So with that, you would recommend an in-line amplifier to up to +5V?

  2. #32
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    I know it's a little early in ur project, but where did you plan instally your PSU and man mini?
    VmtSquad - I sold my soul to Honda!
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  3. #33
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    Quote Originally Posted by VmtSquad View Post
    I know it's a little early in ur project, but where did you plan instally your PSU and man mini?
    Actually, I'm planning to install under the dash, behind the glove box. The PSU will likely sit wherever I can get a reasonably flat surface to attach with some 3M velcro.

    Additionally, I'm going to build a small platform for the Mac Mini and a portable external HD which will hang from a pipe that runs along the dash.

    The original idea borrowed (ok, stolen) from golfguy

  4. #34
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    That process will work but the problem will be in tuning your system. When you have a subwoofer and amps and what not you won't be able to tune the mids or highs without also tuning the lows. Your not going to be able to fine tune your system the way you want to. I mean trust me I'm trying as hard as I can not to put in an aftermarket radio bc I really don't want to have to control my audio through a secondary source but after looking through here enough its either that or an active crossover so I can connect the RCAs from my amps exactly the way theyre meant to be and then just do aux connecion and use the eq through the radio to control audio. Plus I have solid am/fm connection just in case. If you need anything bring the car up to the shop I won't charge you anything to look at it plus it will help me answer some questions too.

  5. #35
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    Quote Originally Posted by Xjman18 View Post
    That process will work but the problem will be in tuning your system. When you have a subwoofer and amps and what not you won't be able to tune the mids or highs without also tuning the lows. Your not going to be able to fine tune your system the way you want to. I mean trust me I'm trying as hard as I can not to put in an aftermarket radio bc I really don't want to have to control my audio through a secondary source but after looking through here enough its either that or an active crossover so I can connect the RCAs from my amps exactly the way theyre meant to be and then just do aux connecion and use the eq through the radio to control audio. Plus I have solid am/fm connection just in case. If you need anything bring the car up to the shop I won't charge you anything to look at it plus it will help me answer some questions too.
    preciat-cha....I may just do that. I must admit I'm a lightweight on Audio.

    Can I install a tuner/in-line amplifier to get a "good enough" tune and increase the voltage from the line level voltage coming out of the Mac Mini.

    Follow-up question: Is the reason I "need" tuning ability in the car to get the correct balance for front-back and left-right?

  6. #36
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    You can do an in-line amplifier but again I'm a huge fan of 5 volt preouts for my RCA's and at the very least a decent 7 band eq. Part of the tuning comes yes being able to have your balance and fade but theres alot more. I don't remember what set up your running exactly but if you tie all of your rcas together out of one output then when go to adjust your mids and highs your also going to be adjusting your lows. basically its like subs are meant to push a certain frequency as are mid range drivers and tweeters so when you say alrighty I want my mids and tweeters to play this range since its all tied into one output the subs are going to try and play the same frequency and potentially you could damage things but mainly its just not going to sound right. if you do an aftermarket radio you can select exactly what freq u want each individual range to play thus getting the all around sound your looking for.

  7. #37
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    Hmm...

    All of that makes sense. I'm just not sure if it is going to matter that much to me in the end. I just have a BASIC setup with 4 mid-rance woofers installed in the doors...

    I also have original tweeters which I haven't really thought about integrating yet. :/ Are you workin Friday? Saturday? Time?

  8. #38
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    Depending on how you wire up your system integrating the factory tweeters shouldn't be too hard. I guess the one answer I dont have is how well the eq on the mini will work bc if it doesnt work as well as an aftermarket radio then your going to be tuning your system from the amp. I work friday from 3-10 and saturday from 9-4. If you stop by bring the amp you plan on using, and if all the speakers are the same brand just one of em but if you've got 2 different brands/models or whatever just bring 1 of each in.

  9. #39
    FLAC sdashiki's Avatar
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    For high volt preouts (always 5v+, som as high as 10v), master volume control, fader/balance and a decent way to control your EQ bands...you really cant go wrong with an external EQ.

    The difference between an EQ and a head unit is the fact a head unit 9/10 has at least 2-3 steps involved before you can begin tweaking anything, including the fader. EQs have knobs...we all love knobs.
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  10. #40
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    haha...you folks are killing me....and convincing me to go the EQ route. After I pick one and get it installed I'll do a review. Won't be able to compare for those of you who already have a install w/o a pre-amp. I like the idea of the DAC, but they seem awefully pricey for what you get... I'm hoping an EQ exists that is a bit cheaper.

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