Uptown Audio
September 10th 03, 04:36 PM
They are some noisey buggers, but I find it difficult to enjoy a movie
with my DVD player turned off. Relocating it to another rack may be
the savior of your A/V marriage. I actually use a rack for each
myself. They should have low noise, but as you note, most video
products are not designed for high fidelity audio. You can hear most
TV sets from across the room if the ambient noise is low (and your HF
hearing is intact). When watching a movie I enjoy great sound, yet am
less bothered by audio fidelity when there is so much visual
information. You are one of those who cannot stand your audio and
video to cohabitate. Nothing wrong with that. It just makes things
less convenient for you.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250
"banspeakerports" > wrote in message
...
> During the past year I've incorporated two DVI generators (Samsung
> satellite tuner & Samsung HD-931 Dvd Player) into my high end
> audio/visual system. Simultaneously I've also performed countless
> listening sessions using multiple combinations of A/C power
> conditioning devices.
>
> One problem (which I finally identified) is that having power
> connected to the Samsung 160 tuner (even when switched off the tuner
> is still really on!) always results in destroying the sound. The
> tuner adds a corse, hard sound to the audio signal. My high end
system
> loses a substantial portion of its resolution ability. Switching on
> the unit (and thus the DVI generating ability) makes matters worse.
> Note: both the analog and digital links are affected.
> The Samsung HD-931 Dvd player (with DVI output) also destroys the
> sound quality. I actually ended up upgrading my whole sound system
> ($10K+) because I was so dis-satisfied.
> Only after a careful process of alienation (while simultaneously
> testing several power conditioner combinations) was I able to
> determine that my satellite receiver and the DVI generators were
> in-part rendering my high resolution audio system useless.
>
> My findings indicate that two issues which must be dealt with before
> achieving high-end sound quality:
> 1) RF pollution in the A/C lines (external generation)
> 2) RF pollution from DVI signal and satellite tuner (internal
> generation)
>
> Manufactures are going to have to certify very low RF emissions in
> their DVI based products before I buy any of them. Proper grounding
> and shielding techniques need to be specified too.
>
> At the location of audio systems, typical radio frequency (RF)
> transmission signals are in the micro-volt level. Contrast that with
> DVI generator levels of several volts. That is a 1,000,00 to 1
ratio!
>
> I ended up returning the Samsung HD-931 (It was flawed in many
ways).
> BTW the picture quality of 12-14 bit converter, over-sampled
component
> video can be wonderful to view. That is after the A/C power has been
> conditioned. But that is another subject.
>
> Now I physically unplug my satellite tuner when not using it as no
> amount or type of A/C conditioning eliminates its sound destroying
> problem.
with my DVD player turned off. Relocating it to another rack may be
the savior of your A/V marriage. I actually use a rack for each
myself. They should have low noise, but as you note, most video
products are not designed for high fidelity audio. You can hear most
TV sets from across the room if the ambient noise is low (and your HF
hearing is intact). When watching a movie I enjoy great sound, yet am
less bothered by audio fidelity when there is so much visual
information. You are one of those who cannot stand your audio and
video to cohabitate. Nothing wrong with that. It just makes things
less convenient for you.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250
"banspeakerports" > wrote in message
...
> During the past year I've incorporated two DVI generators (Samsung
> satellite tuner & Samsung HD-931 Dvd Player) into my high end
> audio/visual system. Simultaneously I've also performed countless
> listening sessions using multiple combinations of A/C power
> conditioning devices.
>
> One problem (which I finally identified) is that having power
> connected to the Samsung 160 tuner (even when switched off the tuner
> is still really on!) always results in destroying the sound. The
> tuner adds a corse, hard sound to the audio signal. My high end
system
> loses a substantial portion of its resolution ability. Switching on
> the unit (and thus the DVI generating ability) makes matters worse.
> Note: both the analog and digital links are affected.
> The Samsung HD-931 Dvd player (with DVI output) also destroys the
> sound quality. I actually ended up upgrading my whole sound system
> ($10K+) because I was so dis-satisfied.
> Only after a careful process of alienation (while simultaneously
> testing several power conditioner combinations) was I able to
> determine that my satellite receiver and the DVI generators were
> in-part rendering my high resolution audio system useless.
>
> My findings indicate that two issues which must be dealt with before
> achieving high-end sound quality:
> 1) RF pollution in the A/C lines (external generation)
> 2) RF pollution from DVI signal and satellite tuner (internal
> generation)
>
> Manufactures are going to have to certify very low RF emissions in
> their DVI based products before I buy any of them. Proper grounding
> and shielding techniques need to be specified too.
>
> At the location of audio systems, typical radio frequency (RF)
> transmission signals are in the micro-volt level. Contrast that with
> DVI generator levels of several volts. That is a 1,000,00 to 1
ratio!
>
> I ended up returning the Samsung HD-931 (It was flawed in many
ways).
> BTW the picture quality of 12-14 bit converter, over-sampled
component
> video can be wonderful to view. That is after the A/C power has been
> conditioned. But that is another subject.
>
> Now I physically unplug my satellite tuner when not using it as no
> amount or type of A/C conditioning eliminates its sound destroying
> problem.