[fatty]

Hi All,

I have a Chime that was built like the Hagerman Gold Chime with a chassis from Par-Metal. Presently, it only has one digital input that I have a Squeezebox hooked up but I would like to plug in another source such as a CD player transport. I know that I can put a switch in but this will require about 18 inches of wire going to the front of the chassis where I would like the switch located then to the back to go into the Chime. My concern is that by using a switch and a length of wire that the digital signal may get corrupted and cause problems wih impedance and noise. What is the best way to implement multiple sources ??

Thanks !

[hagtech]

Yea, you can definately mess up the transmission line termination.  The result will be overshoots or undershoots in the signal edges which can mess up threshold level triggering of states.  Meaning added jitter.  You can try and copy something like the original CHIME.

jh

[fatty]

Hi Jim !

Thanx for the reply ----I don't understand your comment about trying the original style Chime. I am using the Chime board with the Par-metal chassis that you used for the Chime Gold. Can give me a little more detail ?

The way I have it now is that the Chime board with the digital input is about an inch from the back of the chassis with about 2 inches of wire going from the digital RCA jack to the digital input of the board. I could locate the switch on the back of the chassis so as to keep the wire length as short as possible but I don't know about how the switch will effect the digital signal.

Thanx

[fatty]

Hi Guys !

Well----Thanx Jim for the reply ! I built the Chime about 18 months ago and at the same time I was modifying some OTL stuff along with alot of CAD work for some chassis and also working on a couple of tube tuners. I completely forgot that the Chime was originally designed with two SPDIF inputs controlled by a selector switch. It looks as though I bypassed the switch because at the time I did not want to use the USB and I had only one source.

I presume, based on your reply to me that you assumed that I was not using your board. It's really hell getting old because the old memory bank just ain't what it used to be !!

Anyway----I am very embarrassed that I overlooked the obvious and asked such a stupid question !

Regards to all---