Power Hungry SDA 2B's ???

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Comments

  • zingo
    zingo Posts: 11,258
    edited September 2013
    The inputs are exactly the same on the preamp/receiver, but tape is significantly more noisy than CD, and not at all my preferred material.
  • BlueFox
    BlueFox Posts: 15,251
    edited September 2013
    What would one significant difference if I used a CD input source over a tape input source? Thanks!

    Off the top of my head.

    1. Tape hiss.
    2. A CD contains digital files that are converted to analog via the DAC in the CD player. The quality of the DAC determines the sound quality of the file.
    3. A tape is an analog recording that is only as good as the tape heads, recording speed, tape format, and the associated circuitry.
    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD; Pass XP-22 pre; X600.5 amps
    Magico S5 MKII Mcast Rose speakers; SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
  • Summerwind2
    Summerwind2 Posts: 98
    edited September 2013
    Just for clarity; I was referring to the actual RCA inputs and not the actual device.

    So if I plug my ipod into my CD input or my Tape input would there be any significant SNR issues????
  • F1nut
    F1nut Posts: 50,557
    edited September 2013
    I too was thinking about switching back to 8ohms and carpet spikes
    They're on the short wall and 3' off the side walls.

    Ok, I'm not sure how you are measuring, but they can't be 10 feet apart on a 16 foot wall and still be 3 feet from each side wall. Measure from the inside edge of each speaker and set them up at 6 feet apart.
    Question; Do input sources have any impact on sound quality? CD vs Tape vs DVD?

    You mentioned in your other thread about having the best iPod library. Is that what you're using as a source right now?
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


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  • BlueFox
    BlueFox Posts: 15,251
    edited September 2013
    Just for clarity; I was referring to the actual RCA inputs and not the actual device.

    So if I plug my ipod into my CD input or my Tape input would there be any significant SNR issues????

    What kind of a iPod dock are you using? Where did you get the files on your iPod? What type of encoding format is used for these files.

    Plugging your iPod into either of those inputs is a moot point, since they will both suck. I guess you are interested in which one sucks the least. Try it and find out.

    The reason why it sucks is because doing that means you are using the $1.99 DAC chip in the iPod. Plus, I suspect your files use lossy encoding which increases the suckiness of the music.

    As a starting point, read this.

    http://www.theabsolutesound.com/articles/sony-backs-hi-res-audio-big-time/?utm_campaign=Newsletter&utm_medium=email&utm_source=email-161
    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD; Pass XP-22 pre; X600.5 amps
    Magico S5 MKII Mcast Rose speakers; SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
  • F1nut
    F1nut Posts: 50,557
    edited September 2013
    So if I plug my ipod into my CD input or my Tape input would there be any significant SNR issues????

    Ah, you answered my question while I was typing. You need a better source.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • Summerwind2
    Summerwind2 Posts: 98
    edited September 2013
    F1nut wrote: »
    Ok, I'm not sure how you are measuring, but they can't be 10 feet apart on a 16 foot wall and still be 3 feet from each side wall. Measure from the inside edge of each speaker and set them up at 6 feet apart

    They're 7 feet apart from inside edge and not 10 as I originally stated.

    You mentioned in your other thread about having the best iPod library. Is that what you're using as a source right now?

    Yes, I'm using my ipod into my CD input using song I downloaded from itunes.

    Thanks for the insight.
  • Polkie2009
    Polkie2009 Posts: 3,834
    edited September 2013
    Summer, all this time I thought you were using a CD or a Blu Ray player to test these speakers.
  • TennMan
    TennMan Posts: 1,266
    edited September 2013
    For two channel I prefer a simple system like I now have with a preamp and a power amp. I had an AVR before I had the separates and it was too complicated just for 2 channel listening. There were so many settings that even when I was listening in "Pure Direct" mode I was always wondering if I was still hearing a signal modified by the AVR or not. Don't get me wrong. I'm not a purist and I'm not above tweaking the bass or treble knobs every now and then. On my Pioneer AVR you had to make sure the front speakers were set to LARGE and it was set for NO subwoofer. Otherwise the bass would be weak.
    • SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
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    • Pioneer DV-610AV DVD/CD player
    • SDA CRS+ · Hidden away in the closet
  • Summerwind2
    Summerwind2 Posts: 98
    edited September 2013
    Polkie2009 wrote: »
    Summer, all this time I thought you were using a CD or a Blu Ray player to test these speakers.

    And using CD too.

    Thanks for all the feedback but I have yet to get an answer to my original ask; do RCA inputs (not the devices) CD vs DVD vs SAT/LD or Video have any significant SNR issues??? or as someone said which one sucks the least

    Thanks again.
  • naturallight
    naturallight Posts: 689
    edited September 2013
    F1nut is right..first off the speakers are too far apart. No matter how your measuring them.

    I have SDA 1C's set up in a little over 13' wide by 28' long room. Plus i sit over 14' back.

    They are set at 8' apart if you measure from the outboard side of both speakers. They are also 1' off the back wall. Now that seems to work best in MY room....but if you move them farther apart..things don't work right. If you have a really heavy rug..you need spikes.



    Well the fact your using an AVR..not so great but again..put it back to 8ohms.

    The fact your trying to run a Ipod..with downloaded stuff from itunes. Well..that i have no answers for. You need to talk to the digital people.



    I have a separate Pre amp, amp and tube CD player..I have no problems at all.
  • Summerwind2
    Summerwind2 Posts: 98
    edited September 2013
    BlueFox wrote: »
    What kind of a iPod dock are you using? Where did you get the files on your iPod? What type of encoding format is used for these files.

    Plugging your iPod into either of those inputs is a moot point, since they will both suck. I guess you are interested in which one sucks the least. Try it and find out.

    The reason why it sucks is because doing that means you are using the $1.99 DAC chip in the iPod. Plus, I suspect your files use lossy encoding which increases the suckiness of the music.

    As a starting point, read this.

    http://www.theabsolutesound.com/articles/sony-backs-hi-res-audio-big-time/?utm_campaign=Newsletter&utm_medium=email&utm_source=email-161[/QUOTE

    Bluefox I got my read-on:

    http://stereos.about.com/od/accessoriesheadphones/fr/Wadia-170i-Transport-Ipod-Dock-With-Bryston-Bda-1-Dac.htm

    Thanks! Learn something new everyday.
  • leftwinger57
    leftwinger57 Posts: 2,917
    edited September 2013
    My spred from outer corners of my 2bs is 7' and 1 foot off the rear wall. No side walls to deal with and my seating pos is at 9 ' center of my couch almost an equilateral triangle.Straight on,no toe in and I get great stereo seperation.I also share most of my sources w/ the exception of my tt.The Adcom 555, Sda 2bs and Yamaha rx-v665 works as a combo. Where the avr is lacking if just an avr are those sound fields that do nothing but add echo and or delay and it sounds terrible and is never used.Even in pure direct 2-channel it had nothing going for it.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
  • BlueFox
    BlueFox Posts: 15,251
    edited September 2013

    Good job.

    I had a Wadia 170 (still use it at work), and later upgraded to a Wadia 171, which sounds even better. I also have both the Bryston BDA1 and BDA2 DACs. In order for the iPod to be an excellent music source the files need to be copied from a CD as either uncompressed, or use Apple lossless compression. Any file bought from iTunes is a lossy file (musical data is removed to create a smaller file size), so you will need to build up your muscial library from scratch. However, I suspect that even the iTunes files will sound better through the Bryston DAC than the internal DAC in the iPod.

    I replaced my iPod wth the Bryston BDP1 digital file player, which is much more versatile than the iPod. It sounds a bit better also, but the iPod is still a great source with the Wadia and a good DAC.
    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD; Pass XP-22 pre; X600.5 amps
    Magico S5 MKII Mcast Rose speakers; SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
  • Nightfall
    Nightfall Posts: 10,086
    edited September 2013
    ...Yamaha rx-v665 works as a combo. Where the avr is lacking if just an avr are those sound fields that do nothing but add echo and or delay and it sounds terrible and is never used.Even in pure direct 2-channel it had nothing going for it.
    Same for the 667. Garbage for music, okay for HT and gaming.
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

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  • gimpod
    gimpod Posts: 1,793
    edited September 2013
    I have yet to get an answer to my original ask; do RCA inputs (not the devices) CD vs DVD vs SAT/LD or Video have any significant SNR issues??? or as someone said which one sucks the least

    Thanks again.

    To be blunt IT DOESN'T MATTER there all line level inputs and should sound the same.
    “The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain
  • nspindel
    nspindel Posts: 5,343
    edited September 2013
    Just don't use a phono input.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
  • Schurkey
    Schurkey Posts: 2,101
    edited September 2013
    gimpod wrote: »
    To be blunt IT DOESN'T MATTER there all line level inputs and should sound the same.
    Thank you, gimpod. This is one of those times where I had to read the answer in order to understand the question. It happens more often as I get older...or more senile...or more medicated.
  • Summerwind2
    Summerwind2 Posts: 98
    edited September 2013
    Update: I was finally able to access the GUI room set-up on my AVR with all effects off and settings flat.
    And for now Im using my Blueray player as a CD source. The SDA's sounds fantastic @ 25% vol. :cheesygrin:
    Now I can start tweaking.
    Thanks for all advice and support its much appreciated
  • nspindel
    nspindel Posts: 5,343
    edited September 2013
    Welcome to the rabbit hole.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.