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Yesterday, my head unit began switching from CD to FM ... this morning and this evening, it was switching from FM to either CD or AM <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> . It switches at will even if the car is standing still, so it isn't being jarred over bumps or anything. Anybody ever hear of this??? I am hoping it is a known problem or I will have to hope I can replicate it for the dealer <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/rolleyes.gif" BORDER="0"> . You know it will work just fine then <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0"> .<p>The ghost in the machine <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> .
 

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Re: HU850 changing modes all by itself??? (Quick Brick)

Mine did the same thing just before the cd's got stuck in the head unit. They replaced the head unit and all is fine. This is a known issue. Take it to the dealer asap while it is happening. I waited a few days and when I finally took it in it was fine. It took three trips to the dealer (70 miles one way) before it did it for them.
 

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Re: HU850 changing modes all by itself??? (Quick Brick)

While you're at it see if they'll give you an HU803 instead.<p>Man I miss my HU803 <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0"> <p>LTA<br>
 

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Re: HU850 changing modes all by itself??? (LTA)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>LTA</b> »</i></TD></TR><TR><TD CLASS="quote">While you're at it see if they'll give you an HU803 instead.<p>Man I miss my HU803 <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0"> <p>LTA</TD></TR></TABLE><p>Why would you want to do that? <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> <p>There is nothing wrong with the 850. It has just as much bass response as the 803. What the 850 has that the 803 does NOT is a very competent midrange presentation. What you're hearing with the 803 is a lack of midrange, not more bass. That's called faux bass. <p>But, if you want the "803" sound, there are adjustments you can make to the 850 to equalize out the range. I did it on my '05, but I have to go back and find the procedure to access the advanced frequency menus. Yes, the 850 has them. It doesn't take a software download.<p>Personally, I like midrange and do not care for the over-the-top boom and sizzle of most mass market car audio. That's not musical to me.
 

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Re: HU850 changing modes all by itself??? (sgmlaw)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>sgmlaw</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Why would you want to do that? <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> <p>There is nothing wrong with the 850. It has just as much bass response as the 803. What the 850 has that the 803 does NOT is a very competent midrange presentation. What you're hearing with the 803 is a lack of midrange, not more bass. That's called faux bass. <p>But, if you want the "803" sound, there are adjustments you can make to the 850 to equalize out the range. I did it on my '05, but I have to go back and find the procedure to access the advanced frequency menus. Yes, the 850 has them. It doesn't take a software download.<p>Personally, I like midrange and do not care for the over-the-top boom and sizzle of most mass market car audio. That's not musical to me. </TD></TR></TABLE><p>Is the procedure the same as the HU803 ? I posted that 803 procedure in LTA's other thread a couple of days ago (see link below) but JRL said there are no hidden menus in the 850. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> Anyway, here are the 803 procedures, just in case.<p><A HREF="http://forums.swedespeed.com/zerothread?id=56524&postid=526852#526852" TARGET="_blank">http://forums.swedespeed.com/z...26852</A>
 

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Re: HU850 changing modes all by itself??? (IwantaS60R)

I remember telling JRL the procedure at some point in late '04 or early last year. This has got to be in the archives somewhere.<p>You can bring the midrange down through some submenu so that the bass "sounds" stronger. That's all there is to it. I really like vocals and most of the music is in the middle, so I actually bumped the midrange emphasis up a db or two on mine.<p>I think the pdf on this is buried somewhere in my other computer. I'll have to go look for it.<p>The 850 is a strong system. It's balanced. Independent of my own opservations, someone actually went to the trouble of field measuring the response pattern of both these systems and found exactly what I'm saying - it's a midrange difference. The bass is the same. <p>Folks are just bass crazy nowadays and want the window glass to shake with their instant coffee MP3s. Midrange gets in the way to them. <IMG NAME="icon" SRC="http://********************/smile/emthdown.gif" BORDER="0">
 

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Re: HU850 changing modes all by itself??? (sgmlaw)

<A HREF="http://s60r.fadainc.com/tips/Audio_System_HU803_Hidden_Menus.pdf" TARGET="_blank">So, is this the pdf?</A><p>I'm interested to know if the procedure for the 850 is the same
 

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Re: HU850 changing modes all by itself??? (sgmlaw)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>sgmlaw</b> »</i></TD></TR><TR><TD CLASS="quote"><p> Yes, the 850 has them. It doesn't take a software download.<p>. </TD></TR></TABLE><br>I too, would be very interested. As far as I know there are NO hidden EQ menus on an 850 and everyone here who has a 850 would like to be able to adjust their sound.<br>Obviously you never listened to a well tuned/balanced 04, there is a world of difference in these two radios
 

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Re: HU850 changing modes all by itself??? (IwantaS60R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>IwantaS60R</b> »</i></TD></TR><TR><TD CLASS="quote"><A HREF="http://s60r.fadainc.com/tips/Audio_System_HU803_Hidden_Menus.pdf" TARGET="_blank">So, is this the pdf?</A><p>I'm interested to know if the procedure for the 850 is the same</TD></TR></TABLE><br>No. it's not. You do NOT have access to this on an 850
 

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Re: HU850 changing modes all by itself??? (JRL)

I have. The 803s middle is slender. Addition by substraction. We'll disagree on this one, Jim.<p>What I have NOT heard, but would LOVE to have, is the Dynaudio option. I believe it's a Europe only thing. The US gets Harmon Kardons if I recall from my research. <p>A tube or two in circuit would be nice too, but I'm from another era on that one.<p>But I'll go look for the data when I get a chance. I'll need it again soon enough.
 

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Re: HU850 changing modes all by itself??? (sgmlaw)

If this is what you mean you change the mid range eq in the advanced audio menu, one of the ones you get to through the source knob.<p>It's all in the manual!
 

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Re: HU850 changing modes all by itself??? (b1g1an)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>b1g1an</b> »</i></TD></TR><TR><TD CLASS="quote">If this is what you mean you change the mid range eq in the advanced audio menu, one of the ones you get to through the source knob.<p>It's all in the manual!</TD></TR></TABLE><br>Nope, there's much more to it than that.<p>LTA<br>
 

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Re: HU850 changing modes all by itself??? (JRL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>JRL</b> »</i></TD></TR><TR><TD CLASS="quote"><br>Obviously you never listened to a well tuned/balanced 04, there is a world of difference in these two radios</TD></TR></TABLE><p>Amen!<p>LTA<br>
 

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Re: HU850 changing modes all by itself??? (sgmlaw)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>sgmlaw</b> »</i></TD></TR><TR><TD CLASS="quote"><br>The 850 is a strong system. It's balanced. Independent of my own opservations, someone actually went to the trouble of field measuring the response pattern of both these systems and found exactly what I'm saying - it's a midrange difference. The bass is the same. <br></TD></TR></TABLE><p>I agree that the HU850 is a very good system (as for as stock 'radios' go). However, with all different types of music I listen to (and it REALLY varies) my ears and other body parts tell me the HU803 is noticeably better (yes, it's all subjective but I think most are in this camp). Granted, both systems have fantastic front and centre stage image but the HU850 is just missing something. (maybe it's not just missing the low end, more testing is needed...)<p>FYI: I used a tripod-mounted, C-weighted dB meter and an audio test CD to plot the frequency respose of my MY02 HU803 (look in the audio forum). Soon I will do the same for my new HU850 and we'll see if our ears are lying to us and hopefully get an objective look at what's different.<p>I'm endeavoring to get to the bottom of where the real problem or difference are (DSP tuning, Dolby PLII tuning, speakers, amp, etc.).<p>Further findings re: HU803 vs HU850 will be posted in the correct SS forum (sorry for the hijack).<p>LTA<br>
 

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Re: HU850 changing modes all by itself??? (LTA)

I do think you're hearing the fuller middle of the 850. For most more contemporary music, I can see where the listener would be fooled into perceiving less bass.<p>For mobile audio systems, I ignore imaging and soundstage depth. In a moving automobile interior, those features are impossible to properly establish with any system. Compared to a better home system, one will always be disappointed. The environment is all wrong. Spacing and reflections are a disaster. The mechanical, road and wind noise, even if white noise, doesn't help matters any. What you wind up with is a headphone effect and zero depth.<p>For auto systems, I look primarily at tonal fidelity, nuance (separation of individual but tonally similar notes) and balance across the heart of the frequency range. Hearing the drumstick bounce across the skin is more impressive to me than whether the beat shakes my drink. The frequency extremes can be fun, but that's just not where most of the source content lives, unless you select your media for it. It certainly isn't where my music lives. <p>Play a good vocal selection, or with larger brass, and the 850 does nicely, even in a non-adjusted example. Among the factory systems I've sampled, it sits in the upper crust.<p>Still, a 12AX7 or two in the line stage would be quite an option and would allow some REAL fine tuning of the sonics. That and some Dynaudios would be really something to write home about. I can do without the megawatt amps if the current is there. I recall a 6922 based motherboard a year or so ago and all the audiophiles were fairly in a lather over it., so there may be a niche for this sort of stuff.<p>FWIW, I don't find any of the radio sections in these head units all that impressive. Then again, most commercial FM broadcast quality stinks with excessive compression.<p>I'm certain I'm in the minority for all of this, but my home system is not your average bear, either.
 
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