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In the Forum: Audio Discussions
In the Thread: Another light for the LS tunnel: transformer-attenuators?
Post Subject: More PlacettePosted by George on: 3/14/2007

 Romy wrote:
I see a problem. Sine you have 8 meters interconnects I presume that it a relatively large room with speakers positioned relatively far. This way your common remote control will drive two Placette passive units located a few meter away. I think it is perfectly possible (since it is it IR control) that one of the sensors will not pick the signal right the way and you have unintentional balance between the channels set off….so, they both should be driven form a common sensor….

The remote is not a problem. Using a Xantech distributer, repeaters, and electric eye you can configure the two passive remotes in a foolproof, or nearly foolpoof, manner for about $75-100 total. Since I already had the basic Xantech gear the additional cost was some $15. The problem is that if you have the Placette exposed to both Xantech control and and direct line of sight from the remote the Placette will receive signals from two sources. However, Xantech makes an IR cover for just this purpose for $3 that prevents the Placette from receiving direct commands from the remote. So far I have not observed any difference in the level settings of the two passives when hooked up in this manner.

 Romy wrote:
However, you do not use multi-amping, have the ONLY one source and have the ONLY one amp then it might be OK.

Multiple sources is not a problem as the replacement unit would be just like a full active Placette but without any volume control. An active switchbox, if you will.

 Romy wrote:
The result was absolutely unambiguous: each single inch of cable AFTER THE DIVIDER made Sound more and more inept…

A valuable observation and something I was concerned about. I have tried to minimize it by plugging the passive directly into the amp but this must take its toll. Guy thought this was overkill and insisted the passive can drive several feet of cable without loss..........but what does he know. <:-)

I based this experiment on the assumption that the stronger the signal from preamp to amp the better the signal to noise ratio. I am getting the impression that this may be of minor importance. Anyway it will take me several months (I am a slow listener) to understand this change and if it really is an improvement.

Anyway, Romy, thank you for your input.
George

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