As nothing is affordable on the open market, I'm planning on building
a switching box so that I can connect two 5.1 sources to the 5.1
analogue inputs on my amp. I was planning on using 3 double-pole
relays (BT47's) for switching the 6 channels. These would be
switchable by a front panel switch. Obviously, the unit would run
from a 12v power supply. How well would this work? Would the relays
cause sound quality issues? Any help would be appreciated.

Marky P.

Marky P wrote:

As nothing is affordable on the open market, I'm planning on building
a switching box so that I can connect two 5.1 sources to the 5.1
analogue inputs on my amp. I was planning on using 3 double-pole
relays (BT47's) for switching the 6 channels. These would be
switchable by a front panel switch. Obviously, the unit would run
from a 12v power supply. How well would this work? Would the relays
cause sound quality issues? Any help would be appreciated.

It sounds just fine to me. No, the relays won't degrade the sound in any
way. Do make sure everything's nicely screened of course.

Graham

On Wed, 30 Apr 2008 20:10:36 +0100, Marky P
wrote:

As nothing is affordable on the open market, I'm planning on building
a switching box so that I can connect two 5.1 sources to the 5.1
analogue inputs on my amp. I was planning on using 3 double-pole
relays (BT47's) for switching the 6 channels. These would be
switchable by a front panel switch. Obviously, the unit would run
from a 12v power supply. How well would this work? Would the relays
cause sound quality issues? Any help would be appreciated.

Marky P.

I'm sure you can find yourself a six pole two way switch that will do
the job without all the bother of power supplies.

There are no sound quality issues whichever way you do it.

d

--
Pearce Consulting
http://www.pearce.uk.com

On Wed, 30 Apr 2008 20:02:09 GMT, (Don Pearce)
wrote:

On Wed, 30 Apr 2008 20:10:36 +0100, Marky P
wrote:

As nothing is affordable on the open market, I'm planning on building
a switching box so that I can connect two 5.1 sources to the 5.1
analogue inputs on my amp. I was planning on using 3 double-pole
relays (BT47's) for switching the 6 channels. These would be
switchable by a front panel switch. Obviously, the unit would run
from a 12v power supply. How well would this work? Would the relays
cause sound quality issues? Any help would be appreciated.

Marky P.

I'm sure you can find yourself a six pole two way switch that will do
the job without all the bother of power supplies.

There are no sound quality issues whichever way you do it.

d
I was originally hoping to find a six-pole switch, but can't find one
in the CPC catalogue. Also, wiring up all the bloody wires will be a
nightmare :-(

Marky P.

On Wed, 30 Apr 2008 22:41:04 +0100, Marky P
wrote:

On Wed, 30 Apr 2008 20:02:09 GMT, (Don Pearce)
wrote:

On Wed, 30 Apr 2008 20:10:36 +0100, Marky P
wrote:

As nothing is affordable on the open market, I'm planning on building
a switching box so that I can connect two 5.1 sources to the 5.1
analogue inputs on my amp. I was planning on using 3 double-pole
relays (BT47's) for switching the 6 channels. These would be
switchable by a front panel switch. Obviously, the unit would run
from a 12v power supply. How well would this work? Would the relays
cause sound quality issues? Any help would be appreciated.

Marky P.

I'm sure you can find yourself a six pole two way switch that will do
the job without all the bother of power supplies.

There are no sound quality issues whichever way you do it.

d
I was originally hoping to find a six-pole switch, but can't find one
in the CPC catalogue. Also, wiring up all the bloody wires will be a
nightmare :-(

Marky P.

Radiospares have stuff - like this 6 pole 2-3way

http://uk.rs-online.com/web/search/s...R=250873 6426

And of course wiring it all up is a pain whether it is switches or
relays.

d
--
Pearce Consulting
http://www.pearce.uk.com

Marky P wrote:

I was originally hoping to find a six-pole switch, but can't find one
in the CPC catalogue. Also, wiring up all the bloody wires will be a
nightmare :-(

Marky P.


HORIZONTAL ACTUATED 6 POLE MINIATURE
ALPS - £1.56
CPC order code SW01108 (in-stock) or SW02358 (not!)

Following site has the datasheet.
http://de.farnell.com/jsp/search/altsSubs.jsp?type=alts&sku=1123859
http://www.farnell.com/datasheets/19931.pdf

--
Adrian C

Don Pearce wrote:

Marky P wrote:

As nothing is affordable on the open market, I'm planning on building
a switching box so that I can connect two 5.1 sources to the 5.1
analogue inputs on my amp. I was planning on using 3 double-pole
relays (BT47's) for switching the 6 channels. These would be
switchable by a front panel switch. Obviously, the unit would run
from a 12v power supply. How well would this work? Would the relays
cause sound quality issues? Any help would be appreciated.

I'm sure you can find yourself a six pole two way switch that will do
the job without all the bother of power supplies.

Really ? Ever tried it ?

Graham

Don Pearce wrote:

Radiospares have stuff - like this 6 pole 2-3way

http://uk.rs-online.com/web/search/s...R=250873 6426

The relays will be a heck of a lot cheaper !

Graham

Adrian C wrote:

Marky P wrote:

I was originally hoping to find a six-pole switch, but can't find one
in the CPC catalogue. Also, wiring up all the bloody wires will be a
nightmare :-(

HORIZONTAL ACTUATED 6 POLE MINIATURE
ALPS - £1.56
CPC order code SW01108 (in-stock) or SW02358 (not!)

Following site has the datasheet.
http://de.farnell.com/jsp/search/altsSubs.jsp?type=alts&sku=1123859
http://www.farnell.com/datasheets/19931.pdf

That's really designed for pcb mounting ! Can't see how you'd panel mount
it as Farnell don't seem to stock the hardware.
http://uk.farnell.com/733179/electri...questid=182767

Graham

Eeyore wrote:

Don Pearce wrote:

Radiospares have stuff - like this 6 pole 2-3way

http://uk.rs-online.com/web/search/s...R=250873 6426

The relays will be a heck of a lot cheaper !

Graham


Even considering power supplies etc?

d