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JustAuBy

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About JustAuBy

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  • Birthday 03/14/1987

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    St. Louis

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  1. JustAuBy

    Atma-Sphere S-30 MkII Stereo OTL Amplifier

    I have a diy Nelson Pass designed BOSOZ balanced pre-amp. The S-30 was measured at 2.83v input by soundstage.com It does a shining job and I'm pretty certain i'll have that pre forever. That being said, I wouldn't recommend a passive pre for this amp. I've had it going with a lower voltage output pre before and it sounded great, just didn't get the full 30-45 watts of OTL POWAH. http://www.soundstage.com/revequip/atmasphere_s30mkiii.htm
  2. JustAuBy

    Atma-Sphere S-30 MkII Stereo OTL Amplifier

    Yeah she's got headroom for days
  3. For sale is my Atma-Sphere S-30 MII OTL amplifier. I've purchased a set of Atma-Sphere M-60 Mk. 3.3 Mono blocks so this one needs a new home. I'll include 15 additional Shuguang 6AS7G NOS tubes as well. $1600 for forum members, does not include shipping. Specs below:Output power30 watts per channel into 8 Ω load45 watts per channel into 16 Ω loadImpedanceInput Impedance: 100 KΩ single-ended, 200 KΩ balancedOutput Impedance: 7 ΩInput3 V sensitivityRCA and XLR true balanced inputTube complement10 x 6AS7G output tube6 x 6SN7 driver tubeGain23dB ( for 8 Ω )Power Bandwidth2Hz-75KHz within ½ dBFrequency response( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable1Hz-200KHz within 3 dBHum and noiseLess than -75db below 1 watt, -95db below full power (30 watts)DistortionTotal Harmonic Distortion ( THD ) typically 1% at full powerIntermodulation ( IM ) distortion typically under .04% at full powerPhase shift less than 1° @ 20KHzOutput section risetime600 V/µsFeedback2 dBPower consumption400 wattsDimensions13" deep x 17" wide x 8" tall ( 33 x 43 x 20 cm )Weight( without tubes ) 24 lbs ( 10.9 kg )
  4. JustAuBy

    Klipsch MWM pair, NY

    Not sure if this has been posted yet and don't really know the value but it seems pretty steep. Make an offer is enabled however. https://www.ebay.com/itm/132650616893?rmvSB=true
  5. JustAuBy

    Massdrop

    Here's a nice R-2R dac that's gotten some good reviews. https://www.massdrop.com/buy/massdrop-x-airist-audio-r-2r-dac?irgwc=1&clickid=0btUwHx8KX0iSuo1A9zTjxaTUkjRbYXAQXnxx80&utm_term=385697&utm_content=VigLink&utm_medium=affiliate&utm_source=impactradius
  6. JustAuBy

    kpt-1515 lf details

    Updates? Interested in seeing if the 1515 can stretch it's legs up to 500-600hz.
  7. JustAuBy

    Cheap tube amp with Bluetooth...

    I think they updated them since they originally came out.
  8. See below for perma tight pants. https://drive.google.com/open?id=1EuzI__3ICHB-yPHYs9Yqs6-eUuTdGgqq
  9. JustAuBy

    DSP options for your Pro Klipsch Audio

    I use Dirac for everything except the subs. I then REW the subs separate and input EQ into the Inuke dsp software.
  10. JustAuBy

    DSP options for your Pro Klipsch Audio

    To my knowledge the Analog Devices AD5791 is a 20 bit R2R ladder structure. http://www.analog.com/en/analog-dialogue/articles/20-bit-dac-and-accurate-precision-voltage-source.html
  11. JustAuBy

    Best DIY subwoofer?

    Or..... The Othorn https://drive.google.com/open?id=1EuzI__3ICHB-yPHYs9Yqs6-eUuTdGgqq https://data-bass.com/data?page=system&id=81
  12. JustAuBy

    Best DIY subwoofer?

    If you have access to a CNC machine, you can make the SKhorn i have attached in the link. I have the CAD file too somewhere. Do It! and make me one too while your at it. https://drive.google.com/open?id=11pAblNBq35gE_T1ikP69GKb1Q9y2ddjT https://data-bass.com/data?page=system&id=140
  13. JustAuBy

    Modding KPT-456 to KPT-942?

    I have an electro voice DC-One crossover/EQ for sale if you are interested. http://www.usaudiomart.com/details/649370551-electrovoice-dc-one-active-xo-and-softwarepc/
  14. JustAuBy

    DSP options for your Pro Klipsch Audio

    Previously i used the hypex on a passive xo for the low and highs. They handle themselves very well and crystal clear. I like what the OTL's do to the mid range for 2ch music however. When i do my theater i will have the HF as Ncores, their dynamics are amazing and super silent. Zero background noise
  15. JustAuBy

    DSP options for your Pro Klipsch Audio

    I bought the S-30 Atma-spheres used, they are the Mk II model not the updated versions. Cost me $1400, which was comparable to some of the Transcendent Sound options. I went with the Atma-Spheres because I had balanced connections all the way through and didn't want to change. Probably didn't matter in the end but I'm a little OCD on weird stuff like that.
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