In our local church, we have different groups that use the hall for various
functions.

We have a PA system that has numerous sockets around the church for plugging
microphones into.

I was wondering if it would be possible to plug a personal CD player, which
has a line output socket as well as an headphone socket, into the mic
sockets without causing any damage to the PA System.

If I need a circuit diagram, please does anyone have one that I can build.?

Jim

the_constructor wrote:
In our local church, we have different groups that use the hall for various
functions.

We have a PA system that has numerous sockets around the church for plugging
microphones into.


somewhere there has to be a mixer for all that lot. That SHOULD have
line level input that you can use.


I was wondering if it would be possible to plug a personal CD player, which
has a line output socket as well as an headphone socket, into the mic
sockets without causing any damage to the PA System.

Damge, is unlikeley but ghastly overloads and distortion is. You will be
10-100 times higher signal than a mike produces.


If I need a circuit diagram, please does anyone have one that I can build.?


First of all find out where all those mike sockets go, and report back.

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.


Jim

On 03/08/11 18:35, the_constructor wrote:

I was wondering if it would be possible to plug a personal CD player, which
has a line output socket as well as an headphone socket, into the mic
sockets without causing any damage to the PA System.

If I need a circuit diagram, please does anyone have one that I can build.?

You need a DI box:

http://en.wikipedia.org/wiki/DI_unit

They aren't very expensive to buy so I can't imagine it worth building one.

In our local church, we have different groups that use the hall for
various functions.

We have a PA system that has numerous sockets around the church for
plugging microphones into.


somewhere there has to be a mixer for all that lot. That SHOULD have line
level input that you can use.

We have a microphone on the pulpit that goes directly to the PA System and
uses 1 mic input
We have 2 radio mics on different frequencies that take up another 2 mic
inputs
We have numerous sockets all linked that go to the final mic input. We have
to make sure that only
one mic is used on these sockets at a time.

Selector switches and level controls regulate the outputs for each channel.

No aux socket.

I was wondering if it would be possible to plug a personal CD player,
which has a line output socket as well as an headphone socket, into the
mic sockets without causing any damage to the PA System.

Damge, is unlikeley but ghastly overloads and distortion is. You will be
10-100 times higher signal than a mike produces.


If I need a circuit diagram, please does anyone have one that I can
build.?


First of all find out where all those mike sockets go, and report back.

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.


Jim

"Cod Roe" wrote in message ...
On 03/08/11 18:35, the_constructor wrote:

I was wondering if it would be possible to plug a personal CD player,
which
has a line output socket as well as an headphone socket, into the mic
sockets without causing any damage to the PA System.

If I need a circuit diagram, please does anyone have one that I can
build.?

You need a DI box:

http://en.wikipedia.org/wiki/DI_unit

They aren't very expensive to buy so I can't imagine it worth building
one.

Personally I get a big thrill from building something and seeing it work
rather than
just purchasing a box and plugging it in.

Very interesting article.

"The Natural Philosopher" wrote in message
...
snip

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.

Somewhat OT, but have you considered promession?
http://en.wikipedia.org/wiki/Promession
I'm told it's the way to go.
Don't know about cost, but I wouldn't be worrying about it anyway.

Nick.

the_constructor wrote:
In our local church, we have different groups that use the hall for
various functions.

We have a PA system that has numerous sockets around the church for
plugging microphones into.

somewhere there has to be a mixer for all that lot. That SHOULD have line
level input that you can use.

We have a microphone on the pulpit that goes directly to the PA System and
uses 1 mic input
We have 2 radio mics on different frequencies that take up another 2 mic
inputs
We have numerous sockets all linked that go to the final mic input. We have
to make sure that only
one mic is used on these sockets at a time.

Selector switches and level controls regulate the outputs for each channel.

No aux socket.

Then a DI transformer is what you need, unless there is a lin-mic
switch on one or more of the inputs.

There is nothing TO build. It's a specialised transformer in a box with
two sockets!



I was wondering if it would be possible to plug a personal CD player,
which has a line output socket as well as an headphone socket, into the
mic sockets without causing any damage to the PA System.

Damge, is unlikeley but ghastly overloads and distortion is. You will be
10-100 times higher signal than a mike produces.


If I need a circuit diagram, please does anyone have one that I can
build.?

First of all find out where all those mike sockets go, and report back.

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.


Jim

Nick wrote:
"The Natural Philosopher" wrote in message
...
snip

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.

Somewhat OT, but have you considered promession?
http://en.wikipedia.org/wiki/Promession
I'm told it's the way to go.
Don't know about cost, but I wouldn't be worrying about it anyway.

Nick.


sounds good. Could take the powder and put it on the veg garden and let
it decompose that way anyway.

"The Natural Philosopher" wrote in message
...
the_constructor wrote:
In our local church, we have different groups that use the hall for
various functions.

We have a PA system that has numerous sockets around the church for
plugging microphones into.


somewhere there has to be a mixer for all that lot. That SHOULD have line
level input that you can use.


I was wondering if it would be possible to plug a personal CD player,
which has a line output socket as well as an headphone socket, into the
mic sockets without causing any damage to the PA System.

Damge, is unlikeley but ghastly overloads and distortion is. You will be
10-100 times higher signal than a mike produces.


If I need a circuit diagram, please does anyone have one that I can
build.?


First of all find out where all those mike sockets go, and report back.

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.

I'm sure we'll have a whip round to ensure the most appropriate send off....

Jim K

On 03/08/2011 18:47, The Natural Philosopher wrote:


I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.

In which case, the line output into a mic input overload will enhance
the Experience...

--
R

On 03/08/2011 19:06, Cod Roe wrote:
On 03/08/11 18:35, the_constructor wrote:

I was wondering if it would be possible to plug a personal CD player,
which
has a line output socket as well as an headphone socket, into the mic
sockets without causing any damage to the PA System.

If I need a circuit diagram, please does anyone have one that I can
build.?

You need a DI box:

http://en.wikipedia.org/wiki/DI_unit

They aren't very expensive to buy so I can't imagine it worth building one.

Tons on ebay like:

http://www.ebay.co.uk/itm/Filter-Dir...em3cbaa3 9736



--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

In article ,
the_constructor scribeth thus

"Cod Roe" wrote in message ...
On 03/08/11 18:35, the_constructor wrote:

I was wondering if it would be possible to plug a personal CD player,
which
has a line output socket as well as an headphone socket, into the mic
sockets without causing any damage to the PA System.

If I need a circuit diagram, please does anyone have one that I can
build.?

You need a DI box:

http://en.wikipedia.org/wiki/DI_unit

They aren't very expensive to buy so I can't imagine it worth building
one.

Personally I get a big thrill from building something and seeing it work
rather than
just purchasing a box and plugging it in.

Very interesting article.



Go to Maplins or somewhere similar and buy a 10 K ohm pot.
(Potentiometer) a "LOG" one if they have one.

Wire the CD player across that, co-ax screened type cable from said CD
player screen thats the outer braiding on One end of the pot, the Inner
to the other.

Take another bit of screened coax type cable or a couple of bits of
ordinary wire will do, keep them reasonably short.

Take One wire to One end of the pot thats got the screened or outer
braiding on, and the other to the Middle connection of the pot.

This will give you a very simple attenuator volume control shouldn't
cost more than a quid..

You can do the same with fixed resistors but this way makes it variable
so you can twiddle it to whatever level you want...



from CD player
---------\
/
\
/---------------------------------------- to Microphone input
\
/
-----------------------------------------------------to mic input earth
screened side

from CD player outer screen of cable


http://www.maplin.co.uk/dual-miniature-potentiometers-
2204?ordercode=JM83E


this one will do, you can use both sides one for the left channel and
one for the right If you only have Mono inputs to your mixer then put
the balance on one input full right, the other full left have fun:!...
--
Tony Sayer

Ron Lowe wrote:
On 03/08/2011 18:47, The Natural Philosopher wrote:


I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.

In which case, the line output into a mic input overload will enhance
the Experience...

True: )

On 03/08/2011 19:20, the_constructor wrote:
In our local church, we have different groups that use the hall for
various functions.

We have a PA system that has numerous sockets around the church for
plugging microphones into.


somewhere there has to be a mixer for all that lot. That SHOULD have line
level input that you can use.

We have a microphone on the pulpit that goes directly to the PA System and
uses 1 mic input
We have 2 radio mics on different frequencies that take up another 2 mic
inputs
We have numerous sockets all linked that go to the final mic input. We have
to make sure that only
one mic is used on these sockets at a time.

Selector switches and level controls regulate the outputs for each channel.

No aux socket.

I was wondering if it would be possible to plug a personal CD player,
which has a line output socket as well as an headphone socket, into the
mic sockets without causing any damage to the PA System.

Damge, is unlikeley but ghastly overloads and distortion is. You will be
10-100 times higher signal than a mike produces.


If I need a circuit diagram, please does anyone have one that I can
build.?


First of all find out where all those mike sockets go, and report back.

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.


Jim

On 03/08/2011 21:19, Adrian C wrote:
On 03/08/2011 19:20, the_constructor wrote:
In our local church, we have different groups that use the hall for
various functions.

We have a PA system that has numerous sockets around the church for
plugging microphones into.

Ah, whoops. Finger trouble. Disregard last post.

--
Adrian C

In message , The Natural Philosopher
writes
the_constructor wrote:
In our local church, we have different groups that use the hall for
various functions.
We have a PA system that has numerous sockets around the church for
plugging microphones into.


somewhere there has to be a mixer for all that lot. That SHOULD have
line level input that you can use.


I was wondering if it would be possible to plug a personal CD player,
which has a line output socket as well as an headphone socket, into
the mic sockets without causing any damage to the PA System.

Damge, is unlikeley but ghastly overloads and distortion is. You will
be 10-100 times higher signal than a mike produces.


If I need a circuit diagram, please does anyone have one that I can build.?


First of all find out where all those mike sockets go, and report back.

I like the sound of this. I have told my wife to play Hendrix's 'VOODOO
CHILE' as loud as possible as I get burnt or interred, whichever is the
cheaper.


I'm surprised that Grimly hasn't posted this link

http://www.amazon.com/AudioQuest-K2-...e/dp/B000J36XR
2/ref=cm_cr_pr_pb_t




--
geoff

In article ,
Cod Roe wrote:
On 03/08/11 18:35, the_constructor wrote:

I was wondering if it would be possible to plug a personal CD player,
which has a line output socket as well as an headphone socket, into
the mic sockets without causing any damage to the PA System.

If I need a circuit diagram, please does anyone have one that I can
build.?

You need a DI box:

http://en.wikipedia.org/wiki/DI_unit

They aren't very expensive to buy so I can't imagine it worth building
one.

A DI box is a bit overkill. They are usually designed to bridge a guitar
pickup etc (high impedance) without loading it and match the low impedance
mic input, with as little level loss as possible. A CD player has a line
level output, so a simple attenuator will suffice.

Although it would be better performance wise to use a line input to the
mixer.

--
*Do they ever shut up on your planet?

Dave Plowman London SW
To e-mail, change noise into sound.

Go to Maplins or somewhere similar and buy a 10 K ohm pot.
(Potentiometer) a "LOG" one if they have one.

Wire the CD player across that, co-ax screened type cable from said CD
player screen thats the outer braiding on One end of the pot, the Inner
to the other.

Take another bit of screened coax type cable or a couple of bits of
ordinary wire will do, keep them reasonably short.

Take One wire to One end of the pot thats got the screened or outer
braiding on, and the other to the Middle connection of the pot.

This will give you a very simple attenuator volume control shouldn't
cost more than a quid..

You can do the same with fixed resistors but this way makes it variable
so you can twiddle it to whatever level you want...



from CD player
---------\
/
\
/---------------------------------------- to Microphone input
\
/
-----------------------------------------------------to mic input earth
screened side

from CD player outer screen of cable


http://www.maplin.co.uk/dual-miniature-potentiometers-
2204?ordercode=JM83E


this one will do, you can use both sides one for the left channel and
one for the right If you only have Mono inputs to your mixer then put
the balance on one input full right, the other full left have fun:!...
--
Tony Sayer

Luxury, that's got a spindle and costs very nearly a pound. Skelington presets are good enough for me ;-)

I've done this kind of bodge for 40 years, even been known to carry one in my suit pocket
at wedding receptions "just in case". Never knew they had a posh name until just now though.

--
Graham.

%Profound_observation%