optical vs. coax digital input

2

Comments

  • Frank Z
    Frank Z Posts: 5,860
    edited March 2007
    Even a half-assed POS digitalcoax with a decent shield is immune to picking up stray signals.

    Coax sounds better to my ears, on my rig.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
  • steveinaz
    steveinaz Posts: 19,538
    edited March 2007
    Landry
    FWIW, I found after running each for 4-6 months at a time, the following:

    Toslink: Very neutral, almost sterile. Very deep/controlled bass. Smooth midrange treble at high volumes. Black background. Soundstage depth a little compressed compared to coax/XLR.
    XLR: Warm, smooth character; more air around instruments. Bass a touch less controlled than Toslink. Treble the slightest bit more presence. Deeper soundstage. More of an "analog" sound to it than the other 2.
    Coax: Smack dab in the middle between XLR and Toslink

    The cables used were:
    Toslink: quartz glass fiber optic from Sonic Wave, .5 mtr
    XLR: Signal Cable AES/EBU digital, 2ft
    Coax: DH Labs D-75, 1mtr

    Bottom line:
    Toslink: for the "accurate" music lover
    XLR: for the "beautiful" music lover
    Coax: for someone who wants a little of both, but compromises slightly on the best that Toslink/XLR have to offer
    Source: Bluesound Node 2i - Preamp/DAC: Benchmark DAC2 DX - Amp: Parasound Halo A21 - Speakers: MartinLogan Motion 60XTi - Shop Rig: Yamaha A-S501 Integrated - Shop Spkrs: Elac Debut 2.0 B5.2
  • read-alot
    read-alot Posts: 812
    edited March 2007
    Damn, ya think he is still looking going on three years?
    polkaudio SRS (rdo194 x 8)
    Dodd ELP (separate power supply)
    JC 1 blocks ( strapped )
    Rega Apollo
    MIT (speaker cables) Outlaw (ICs)

    polkaudio SDA2(rdo194x4) (front) polkaudio CRS (rdo194x4)(rear) polkaudio 400i (center)
    B&K 505
    Samsung LCD
    VIP 622
    HSU STF-2
  • ben62670
    ben62670 Posts: 15,969
    edited March 2007
    read-alot wrote:
    Damn, ya think he is still looking going on three years?
    No... but I am:)
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • read-alot
    read-alot Posts: 812
    edited March 2007
    ben62670 wrote:
    No... but I am:)

    Well then let me give you some advice that I aquired early on this board.

    "Don't believe anything you read and only half of what you see" or hear in this case.
    polkaudio SRS (rdo194 x 8)
    Dodd ELP (separate power supply)
    JC 1 blocks ( strapped )
    Rega Apollo
    MIT (speaker cables) Outlaw (ICs)

    polkaudio SDA2(rdo194x4) (front) polkaudio CRS (rdo194x4)(rear) polkaudio 400i (center)
    B&K 505
    Samsung LCD
    VIP 622
    HSU STF-2
  • steveinaz
    steveinaz Posts: 19,538
    edited March 2007
    True. YMMV. Didn't realize how old this post was.
    Source: Bluesound Node 2i - Preamp/DAC: Benchmark DAC2 DX - Amp: Parasound Halo A21 - Speakers: MartinLogan Motion 60XTi - Shop Rig: Yamaha A-S501 Integrated - Shop Spkrs: Elac Debut 2.0 B5.2
  • louthewiz
    louthewiz Posts: 581
    edited March 2007
    Coaxial and Optical are both the same $hit it's all 111s and 000s...
    My gear,
    Acer PH530 720P PJ
    100 inch Da-Lite Video Spectra screen
    Yamaha HTR 5790
    Toshiba HD-A3
    Denon 1600 dvd player with sdi out,
    DVDO iSCAN HD+
    Panasonic Dmr E-80H
    Dishnetwork HD pvr
    1 Audiosource amp300 150 wpc Fronts
    1 Audiosource ampone bridged 200 watts powering center
    1 Onkyo M-282 105 wpc amplifier sides
    polk cs400 center
    polk RT400 mains
    Polk mkII back surrounds,
    Polk FX300fxi dipole surrounds
    Velodyne DPS-10 sub
    Klipsch KSW-10 sub.:cool:
  • MikeC78
    MikeC78 Posts: 2,315
    edited March 2007
    louthewiz wrote:
    Coaxial and Optical are both the same $hit it's all 111s and 000s...

    I thought that only applied to digital connections?

    Mike
  • ben62670
    ben62670 Posts: 15,969
    edited March 2007
    MikeC78 wrote:
    I thought that only applied to digital connections?

    Mike
    Optical is digital via light pulses
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • louthewiz
    louthewiz Posts: 581
    edited March 2007
    Yes digital connections are via coaxial or optical connections,
    the science in both applications are equal and while optical is by
    light,
    coaxial is by electrical both transfers of data are identical and the wiring has no audible difference.
    Next thing members are going to say is that "burned in cables" make a difference.
    My gear,
    Acer PH530 720P PJ
    100 inch Da-Lite Video Spectra screen
    Yamaha HTR 5790
    Toshiba HD-A3
    Denon 1600 dvd player with sdi out,
    DVDO iSCAN HD+
    Panasonic Dmr E-80H
    Dishnetwork HD pvr
    1 Audiosource amp300 150 wpc Fronts
    1 Audiosource ampone bridged 200 watts powering center
    1 Onkyo M-282 105 wpc amplifier sides
    polk cs400 center
    polk RT400 mains
    Polk mkII back surrounds,
    Polk FX300fxi dipole surrounds
    Velodyne DPS-10 sub
    Klipsch KSW-10 sub.:cool:
  • blacklab
    blacklab Posts: 37
    edited March 2007
  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited March 2007
    Just what is the bandwidth of DTS does anyone know, I know coax can do t3 level which is 45meg / 28 t1's or 672 phone lines. Seems to me 5.1 channel of anything should have no issue's moving by coax.

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR


  • dorokusai
    dorokusai Posts: 25,577
    edited March 2007
    It encodes audio by splitting it into 32 subbands, each with a bandwidth of 750 Hz - Wikipedia.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
  • MikeC78
    MikeC78 Posts: 2,315
    edited March 2007
    louthewiz wrote:
    Yes digital connections are via coaxial or optical connections,
    the science in both applications are equal and while optical is by
    light,
    coaxial is by electrical both transfers of data are identical and the wiring has no audible difference.
    Next thing members are going to say is that "burned in cables" make a difference.

    I knew that!:o I keep thinking HDMI is the only digital connection that uses 000's and 111's.

    Thanks for correcting me.

    Mike
  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited March 2007
    I found this,

    DTS 1.5mbit / sec or 754kbit / sec vs. Dolby Digital 448kbit / sec or 384kbit / sec. I guess theres actually 2 levels of decoding in both methods.

    http://www.timefordvd.com/ref/dts.shtml

    Again this should be no problem sending over coax. NONE.

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR


  • engtaz
    engtaz Posts: 7,664
    edited March 2007
    Just a thought:
    wire measured in resistance Ohm's
    fiber optics measured for loss dB's

    HUMMMMMMMMMMMMMMMMMMMMMMMM

    engtaz
    engtaz

    I love how music can brighten up a bad day.
  • ben62670
    ben62670 Posts: 15,969
    edited March 2007
    engtaz wrote:
    Just a thought:
    wire measured in resistance Ohm's
    fiber optics measured for loss dB's

    HUMMMMMMMMMMMMMMMMMMMMMMMM

    engtaz
    digital is easily capable of transmitting a gig a second.
    HUMMMMMMMMMMMMMMMMMMMMMMMM

    If they can broadcast digital TV with sound many miles away....
    If they can broadcast digital TV from earths orbit miles away...

    Bandwidth isn't near being approached by currant media. Even with video included. Hi Def at that too.;)
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • Deadof_knight
    Deadof_knight Posts: 980
    edited March 2007
    but I believe the sounds to be warmer for coax




    die horse DIE ! THUMP! THUMP!
    :cool: " He who dies with the most equipment wins Right ? "

    Denon 3300 Adcom 535 BBe w/sub out 1 pr 4.6s 2 pr of 4 jrs Recent additions Samsung Lns-4095D LCD, Samsung hd-960 DVD, Monster HT-5000 Power center
    ,HPSA-1000 18" sealed DiY home sub.:D
    Black Laquer 1.2tl's w/ upgraded x-overs and Tweets BI-Amped with 2 Carver tfm-35's Knukonceptz 10ga cables
  • snow
    snow Posts: 4,337
    edited March 2007
    louthewiz wrote:
    Yes digital connections are via coaxial or optical connections,
    the science in both applications are equal and while optical is by
    light,
    coaxial is by electrical both transfers of data are identical and the wiring has no audible difference.
    Next thing members are going to say is that "burned in cables" make a difference.
    Are you saying there is no diffrence between coaxial and toslinks as far as sound goes?

    REGARDS SNOW
    Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all :D
  • Nelson57
    Nelson57 Posts: 190
    edited April 2007
    Do any of you watch your movies with the sound through the multichannel analog option?

    I did this, actually by mistake, but found I liked the sound better than through the optical cable. Using the Anthem AVM 30 pre-pro I set the source to 6 channel with the THX Ultra 2 DSP overlay and preferred this to the optical option with the same DSP.

    This was a new discovery for me as I only used the 6 channel option when I listened to multi channel music. I'm going to watch some more movies through this option just to make sure, but I think I might prefer this over both coax or optical digital formats.
    Main theater: Paradigm Studio 100's v4 L/R, CC690 Center, ADP 590 x4 Surrounds. Dual Outlaw LFM-EX-1's, Yamaha Aventage RX-A1010 as Processor, Anthem PVA-7 Amp

    Secondary System: Polk RTi 6 L/R, CSi3, Center, FXi3 x4 Surrounds, Def-Tech Supercube II, Pioneer Elite VSX-23 Receiver
  • madmax
    madmax Posts: 12,434
    edited April 2007
    The only difference is that opitcal has to go through two extra stages to change to light then back. The input going to the amplifier circuit for the light is the coax output and the output on the other side goes to the coax input. No doubt optical sounds "different" after going through these extra two conversions.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D
  • WilliamM2
    WilliamM2 Posts: 4,782
    edited April 2007
    No doubt optical sounds "different" after going through these extra two conversions.

    Why? What would the conversion add, or take away from the 1 and 0's?
  • Frank Z
    Frank Z Posts: 5,860
    edited April 2007
    Not all 1's and 0's are repoduced exactly the same by every digital device. If they were then we'd all be buying cheap crap cuz it would sound the same as the expensive crap.

    This subject is another that will never have an aswer that everyone agrees with. On MY system, with MY music, MY ears noticed an improvement over Toslink. I don't give a rats **** if anyone disagree's or not...you aren't doing the listening for me.


    Quit arguing about it and go listen for yourselves and decide what you like or if you hear a difference.

    We're done here.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
  • LUKassz32
    LUKassz32 Posts: 4
    edited April 2007
    analog 5.1 and DD+ FTW!
  • engtaz
    engtaz Posts: 7,664
    edited April 2007
    :confused::confused::confused::confused::confused::confused::confused:
    what?
    engtaz

    I love how music can brighten up a bad day.
  • Face
    Face Posts: 14,340
    edited April 2007
    FTW=For the win=the best.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
  • Face
    Face Posts: 14,340
    edited April 2008
    I had a fellow Polkie over tonight and we wen back and forth with digital coax and optical from the same source. There was definitely a difference, coax seemed to sound fuller and more detailed to both of us.

    It's not always about the 1's and 0's.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
  • snoboarder77
    snoboarder77 Posts: 16
    edited April 2008
    i like optical better
  • zingo
    zingo Posts: 11,258
    edited April 2008
    I just ordered a "Premium Optical" cable from monoprice. When I get a change I'm going to test optical vs. coax since I can assign inputs on my pre/pro (coolest feature I never knew I needed). This will be my first experience with optical and I'll be interested if I can hear a difference.

    BeatDeadHorse.gif
  • louthewiz
    louthewiz Posts: 581
    edited April 2008
    I thought this horse Died!!!
    My gear,
    Acer PH530 720P PJ
    100 inch Da-Lite Video Spectra screen
    Yamaha HTR 5790
    Toshiba HD-A3
    Denon 1600 dvd player with sdi out,
    DVDO iSCAN HD+
    Panasonic Dmr E-80H
    Dishnetwork HD pvr
    1 Audiosource amp300 150 wpc Fronts
    1 Audiosource ampone bridged 200 watts powering center
    1 Onkyo M-282 105 wpc amplifier sides
    polk cs400 center
    polk RT400 mains
    Polk mkII back surrounds,
    Polk FX300fxi dipole surrounds
    Velodyne DPS-10 sub
    Klipsch KSW-10 sub.:cool: