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Thread: Custom sony diskman Isolation platform!

  1. #1
    Member Whosondephone's Avatar
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    Default Custom sony diskman Isolation platform!

    At work we make platforms for HI-Fi audio components. So I got to use some scraps to make a CD player platform. I believe that the Ford Premium Sound is quite good. (at least without tweeters) I made this 2 years ago. I used a Sony shock mount as a template so it is compatible with any Sony diskman with a metal bottem. There were two problems with the Sony shock mount. The sound was horrible using the built in power supply. Secondly they use rubber for isolation. I do not have time to comment further on that. Ask and I will some other time if interested. The CD player is screwed to the platform threading from the underside. I believe I'm using the Sony CP-7. I would recommend anyone using a tape adapter to use at least a Sony CP-9.

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    Current ride: 1986 Grand Marquis

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    Beater gonna beat sly's Avatar
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    nice.

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    GMN Regular DerekTheGreat's Avatar
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    Swap a JBL amp in place of the Ford garbage and treat your ears to tonal bliss. For added low end response throw the Ford JBL 6x9's in place of the Ford junk too.
    On a side note, Ford did offer a Sony sourced CD player in box TC's from 87-89. I pulled the entire assy from a 89 a month or so ago, great condition and it works. I have no use for CD's other than ripping them into my database so it's just sitting there.

    https://books.google.com/books?id=HO...%20car&f=false

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    1985 LTD Crown Victoria - SOLD
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    GMN Regular HiFiMerc's Avatar
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    Good luck finding those 6x9's. Every time I find a set, they're wasted.

  5. #5
    GMN Regular DerekTheGreat's Avatar
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    I've got a couple if you're interested
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    GMN Regular DerekTheGreat's Avatar
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    Well the Mark VII specific sets are for grabs lol. I only have one spare TC set..
    1985 LTD Crown Victoria - SOLD
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    Need one of these too!
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  8. #8
    Member Whosondephone's Avatar
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    What the hell is that? ^

    I have had good experience with low power JBL amps. I'm not a fan of the speakers on the otherhand. I suppose they couldn't mess up a woofer. I've only heard maybe 6 different systems. JBL Junky But Loud. Their speakers then to have good frequency response and efficiency. However they lack coherency and imaging. I find the top end tends to be harsh.

    Just after I clicked Post I came to the realization that the ford amp sucks. It sounds flatter and louder than the ford regular sound amps... I'm looking for a Sony XR-7071. Doubt I'll ever find one. I have a 10CD disk changer that is compatible with it. The RF interface module that the CD player come with sounds bad! I might pick up an old head unit if it is simple and green. Nothing flashy silver round...

    I'm on a quest to find a DAC that sounds better than a CD player. I spent $600 on a Lavry DA10. The Dennon CD player I picked out of the garbage sounds better. Perhaps if I get a better input source for the Lavry it will beet the Dennon.
    Last edited by Whosondephone; 12-19-2015 at 12:32 AM.

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  9. #9
    I'm an air-conditioned gypsy gadget73's Avatar
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    RF inputs are pretty much always a bad idea. I've yet to hear one that sounded remotely decent. The tape adapters are better, and they're not amazing.

    The JBL thing is a matter of taste I expect. Talking about coherent imaging in a car is pretty much hopeless though. The layout is all wrong and the materials are not remotely favorable for it. I have a pair at home that I like just fine, but they don't really share much in common with how the factory JBL car stuff sounds. I will say that my Klipsch speakers image better, but the JBL's sound much better in the workshop with its lack of carpet to dampen any echos. Some of that is the amplification too though. That Sherwood tube amp I run on the Klipsch speakers has a bit of magic in it.
    Last edited by gadget73; 12-19-2015 at 10:09 AM.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

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    GMN Regular DerekTheGreat's Avatar
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    JBL car audio trumps all other car audio stuff I've heard, including Sony, Kenwood, Pioneer (the basalt cone stuff came close), Alpine and Boston. Boston's sound great but can't handle any bass without melting. Try the JBL stuff with JBL amp and then report back.
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  11. #11
    I'm an air-conditioned gypsy gadget73's Avatar
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    Those parts do pair. The frequency response of the JBL amps is not flat at all. I suspect it has been doctored to make the head unit, speaker, amplifier, and car combination sound right together. I should hook one up and actually get the frequency response plotted. I did it pretty crudely a while back, but now I have a voltmeter that is accurate and I've figured out how to do math and graphing in OpenOffice so it will spit out a chart that makes sense.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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    GMN Regular DerekTheGreat's Avatar
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    +1 for the charting for the amp. For S&G's you could also do the premium crap too. Oh, I forgot to throw Focal stuff in there. That stuff sounds like turds for what they're trying to charge. DOn't know where that company came from but $800+ for a pair of car speakers is insane. Their followers seem to be on the same drugs as Bose people.
    1985 LTD Crown Victoria - SOLD
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    Are we talking factory JBL systems or aftermarket as well? I'll agree the factory JBL (or other Harman brands) are generally nice sound OEM systems, however for aftermarket it's tough to beat Boston Acoustics, Polk and JL audio. I'll agree with you on Focal, over priced for what you get.
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    GMN Regular DerekTheGreat's Avatar
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    Factory & aftermarket. Considering I got my second hand factory JBL stuff for $5 a speaker, you can't beat the quality for price ratio! Seriously too though, I was very impressed with the performance of that stuff. Seems to me people really didn't start taking car audio seriously until the 80's so I wasn't expecting much at all but was very impressed. Can't believe ford used a receiver/preamp with dedicated amplifier.

    I had Bostons for the longest time and they were my preferred choice up until I stumbled upon JBL. I had their SL95's (Still use them in the Fury but they're dead now) and they were great, clean & smooth but all it takes is one bout of heavy bass or screwed up setting and you end up with a scratchy blown speaker. The cheaper JBL power series stuff sounds about 90% as good as the Bostons but have handled all of my abuse. Sets I've purchased over five years ago are still running strong. Power series is being phased out. Was not impressed with my JBL dash speakers for Townie. had to unplug them due to harshness. Couldn't find the matching power series set though.

    Never had Polk car audio stuff. Friend raves about them for home audio. Too bright for me, would be great for new wave and stuff I suppose. Never listened to JL audio either. My impression from the CarTunes sound room is that they're all about the boom boom.
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    I'm an air-conditioned gypsy gadget73's Avatar
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    The only stuff I have on had are Ford factory JBL amps from the 80s. I believe both of mine are Mark VII parts. The one for the Towncar has a different part number, but that may be related to the different mounting plate setup. I don't know if its any different otherwise. I know the actual amplifier chips are the same, but I won't swear that some other component values are not a bit different.

    I've got some time over Christmas. Maybe I'll whack together a frequency response chart. I have some other workshop projects to do then as well.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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    GMN Regular DerekTheGreat's Avatar
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    I can't speak on their latest and greatest but I am digging set up I have in TC, has been nearly a decade since I've had a set up like this. Need custom sub box though, this one I have is too small and so sub doesn't hit hard enough at 60hz.

    Chart would be cool, whenever you get time is just dandy as other stuff is probably more important.
    1985 LTD Crown Victoria - SOLD
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    Member Whosondephone's Avatar
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    It's nice to hear some opinions about Car audio. I'm coming from the consumer home audio world. I'm not familiar at all with any car audio equipment including JBL. Different worlds. I agree that it's impossible to get a coherent sounding car system. The new factory car stereos, Subaru and BMW in particular, are getting worse. The faze appears to be tuned for the middle rear passenger. Pointless for driving. I have heard that Altec Lansing has made some good drivers for cars.

    Current ride: 1986 Grand Marquis

  18. #18
    I'm an air-conditioned gypsy gadget73's Avatar
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    I'm also more of a home audio guy. The goal there is flat frequency response and imaging, but you can usually move things around somewhat to help with that. Cars are rather more limited with speaker positioning and you have no significant control about placement of the stuff inside the car either. A lot of car audio systems seem aimed more at making things thump than actually sounding decent as well, and thats an issue. Add in the fact that the typical sources now are the relatively awful fidelity sat or HD radio or streamed through the phone via a bluetooth connection and it stops mattering so much. I've moved into the ipod age, but I use high quality files that sound a world better than the digital radio services do. That gurgly underwater streaming BS makes my ears scream.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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    Beater gonna beat sly's Avatar
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    Mine thumps, but is well balanced with non thumping tunes. And it's all cheap Pioneer with a Kenwood eXcelon head unit.

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    GMN Regular DerekTheGreat's Avatar
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    That's what you think sly :P

    I agree with inspector gadget, focus just seems to be boom boom. When you listen to what's popular today that really is all there is to amplify; boom boom & handclap. No midrange, no transitions, no clever mixing of multiple instrumental tracks or use of left and right, or clever lyrics, just synthetic boring cookie cutter music. "We're never ever ever getting back together." Case in point.

    I am really starting to like my car's set-up. I do prefer home audio to car audio but its nice to be able to jam at home or on the run.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

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