Re: Impedance matching speaker switch recommendations

["Phil Harris phil@xxxxxxxxxxx [ukha_d]" <ukha_d@xxxxxxxxxxxxxxx>]

Does the SONOS have a preamp out on it?

If so, get a little cheap stereo amp and use that from the preouts to drive
the second set of speakers...?

eBay should find you a stereo amp for next to no money...

Phil

Sent from another bloody fruit-based portable device...

> On 18 Jul 2016, at 08:31, Paul Gordon paul_gordon@xxxxxxx [ukha_d]
<ukha_d@xxxxxxx> wrote:
>
> Hi all
>
> Yesterday I dug out my old spare pair of Bose 151 outdoor speakers and
decided to mount them as a second pair on another side of the house,
connected back to the same SONOS ZP100 as another pair mounted on the deck.
>
> My problem is now that I have 4 x 4ohm speakers to connect.... And
because these are for 2 different sides of the house, I really want to be
able to have on/off control of the 2nd pair... But I don't particularly
care about independent volume control.
>
> I *could* just simply connect them in series, but I really don't want
to do that, since that precludes the possibility of on/off switching of
either pair, and also because SONOS strongly advise against series speaker
connections.
>
> I can't connect them in parallel, since that would result in a 2ohm
load, which is unsuitable for the zoneplayer (supports 4-16 ohm loads).
>
> Hence I need a 2-channel A/B speaker switch with impedance protection
to ensure a constant suitable load is presented to the amplifier. I had an
old Maplins 2-way switch in my spares bin, but when I tried to wire it up,
strange things happened, so I guess it is not properly impedance
matching... :-(
>
> Anyone got any recommendations for a good quality speaker switch I can
use in this situation?
>
> Cheers
>
> Paul G
>
> Sent from my iPad
>
> ------------------------------------
> Posted by: Paul Gordon <paul_gordon@xxxxxxx>
> ------------------------------------
>
>
>
> ------------------------------------
>
> Yahoo Groups Links
>
>
>



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Posted by: Phil Harris <phil@xxxxxxx>
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