[s-cars] Bose system pops with Alpine deck

[calvinlc at earthlink.net]

That is a GREAT way to describe it!  The tumor in my car known as
Bose.....That's great!
--Calvin


-----Original Message-----
From: Eric Phillips [mailto:gcmschemist at gmail.com]
Sent: Wednesday, April 30, 2008 10:05 PM
To: calvinlc at earthlink.net
Cc: john at johncleirigh.com; s-car-list at audifans.com
Subject: Re: [s-cars] Bose system pops with Alpine deck


Here's a funny story:

When I first got my Traffic Pro, I used its line-outs to go to the
Bose stuff.  Popping on shut-down, just like the OEM head unit.  I
tried capacitors in-line.  Nope.  Noise suppressors.  No dice.

So, I purchased a line level converter.  Well, it goes both ways -
line-out to speaker level, and speaker level to line-out, depending on
what way you hook it up.

I used the speaker outputs on the Traffic Pro as my "in" and line
level as my "out" - no popping.

The Bose crap is weird.  Maybe some day, I'll do some surgery and
completely remove the tumor in my car known as "Bose".

Eric

On Wed, Apr 30, 2008 at 8:44 PM,  <calvinlc at earthlink.net> wrote:
> Eric,
>
>  I am feeding the Bose system with the Line-Outs from the Alpine and it
does
>  NOT eliminate the popping.
>
>  --Calvin
>
>
>
>
>  -----Original Message-----
>  From: s-car-list-bounces at audifans.com
>  [mailto:s-car-list-bounces at audifans.com]On Behalf Of john cléirigh
>  Sent: Wednesday, April 30, 2008 6:30 PM
>  To: Eric Phillips
>  Cc: s-car-list at audifans.com
>  Subject: Re: [s-cars] Bose system pops with Alpine deck
>
>
>  Indeed Calvin and Eric!  You're both right about my response.  I should
>  have offered my experience as a data point to suggest the remote amps are
>  registering the power-down as a thunk through the speakers and so any
>  aftermarket head unit with a non-filtered (non-balun'd) output will
likely
>  also overload the front end of the amps.  Thanks.
>
>  I think the Alpine deck should feed the Bose amps from the RCA jacks and
>  not the speaker harness.  I'm sure that would eliminate the thunk because
>  the amps are looking for a line level input.
>  --
>  john cléirigh | Boulder
>
>  On Thu, May 1, 2008 12:11 am, Eric Phillips wrote:
>  >> The worn rotary switch and the amps popping or thumping are two
>  >> separate issues, IMO.
>  >>
>  >> I, too, had the thumping on DeltaCC power-off (only with rotary knob -
>  >> the ignition wasn't in the circuit.)
>  >>
>  >> Then I put in my Traffic Pro, and lo and behold - same problem on
>  >> powerdown.  OK, so then I put a device in-line - a speaker -> line out
>  >> converter.  No more popping.  :)
>  >>
>  >> I am very happy with the way it all turned out.  I would have
>  >> preferred to stick with Audi stuff - like a Concert I as the head unit
>  >> - to avoid all the electrical gymnastics it took to make the Traffic
>  >> Pro work.
>  >>
>  >> Eric