Hi, I have a DVD combination Amp/Player (Sony DAV300) that I also use
to play CDs on and I wish be able to hear the music in another room
(kitchen) as well as in the room with the Amp/Player. I have run a
good quality speaker cable between the rooms which is about 20 feet
long. I have taken an audio output from the DVD player (output
specification 2V 1 Kilohms Impedance). At the remote location I have a
set of active speakers, they were originally on my computer but their
discrete size and colour allows them to blend in to their
surroundings. I do get sound through but the quality is poor with lots
of distortion, I believe I have an impedance/voltage mismatch issue. I
have taken a phono output from the DVD player and everything works
fine but taking this output switches off the speakers in the DVD room.
I believe computer speakers have an input impedance of around 4-40
ohms generally. Can you suggest how I can fix this problem?

In anticipation with thanks,

Mark

"Sparky" wrote in message
om \

Hi, I have a DVD combination Amp/Player (Sony DAV300) that I also use
to play CDs on and I wish be able to hear the music in another room
(kitchen) as well as in the room with the Amp/Player. I have run a
good quality speaker cable between the rooms which is about 20 feet
long. I have taken an audio output from the DVD player (output
specification 2V 1 Kilohms Impedance). At the remote location I have a
set of active speakers, they were originally on my computer but their
discrete size and colour allows them to blend in to their
surroundings. I do get sound through but the quality is poor with lots
of distortion, I believe I have an impedance/voltage mismatch issue.

I suspect you have shorted wiring.

I have taken a phono output from the DVD player and everything works
fine but taking this output switches off the speakers in the DVD room.

Consistent with shorted or inverted polarity wiring.

I believe computer speakers have an input impedance of around 4-40
ohms generally. Can you suggest how I can fix this problem?

Check out the wiring for shorts with an ohm meter.

On 20 Jan 2004 15:02:36 -0800, (Sparky)
wrote:



In anticipation with thanks,

Mark

On 20 Jan 2004 15:02:36 -0800, (Sparky)
wrote:

Hi, I have a DVD combination Amp/Player (Sony DAV300) that I also use
to play CDs on and I wish be able to hear the music in another room
(kitchen) as well as in the room with the Amp/Player. I have run a
good quality speaker cable between the rooms which is about 20 feet
long. I have taken an audio output from the DVD player (output
specification 2V 1 Kilohms Impedance). At the remote location I have a
set of active speakers, they were originally on my computer but their
discrete size and colour allows them to blend in to their
surroundings. I do get sound through but the quality is poor with lots
of distortion, I believe I have an impedance/voltage mismatch issue. I
have taken a phono output from the DVD player and everything works
fine but taking this output switches off the speakers in the DVD room.
I believe computer speakers have an input impedance of around 4-40
ohms generally. Can you suggest how I can fix this problem?

Feeding a 1kohm output into a 4-40ohm(?) input is a no-no. It's the
equivalent of a short. Get the real numbers and check back.

Kal

"Kalman Rubinson" wrote in message

On 20 Jan 2004 15:02:36 -0800, (Sparky)
wrote:

I believe computer speakers have an input
impedance of around 4-40 ohms generally. Can you suggest how I can
fix this problem?

Feeding a 1kohm output into a 4-40ohm(?) input is a no-no. It's the
equivalent of a short. Get the real numbers and check back.

Good point. In fact the input impedance of powered computer speakers is
more like 4.7K to 10K ohms and up.

Here's some input impedance numbers I gleaned from spec sheets for a wide
range of powered speakers for PCs:

Sony SRS-Z1 Personal Active Speakers 4.7 K ohms
Logitech Z-640 5 KH ohms
Tsunami Apricorn 3D 10K ohms
Boka SW1050 10 K ohms
Boston Acoustics BA265 200 K ohms
Gateway speakers 10 K ohms
Polk Audio AMR1 10 K ohms
JBL "Creature" 5K ohms