Recent content by atomicbob
  1. atomicbob

    Seattle 11/07/20 impressions

    Thank-you for hosting the virtual meet @BIG POPPA , it was really great to interact with everyone. I really enjoyed @johnjen providing a detailed tour of The Purple Amp. Looking forward to hearing that when crazy times subside. My Zoom audio setup included Soekris 1421 DAC driving The Bachelor...
  2. atomicbob

    Official Seattle meet 01/25/20 Impressions

    I should note the Stellia headphones I brought were acquired from Andrew at Bloom Audio.
  3. atomicbob

    Official Seattle meet 01/25/20 Impressions

    thank-you for once again organizing this quarterly meet @BIG POPPA highlights for me included: @johnjen purple amp which had the midrange magic nailed along with a good representation of the entire auditory spectrum. Much more bass impact than I would have expected. @gefski asgard 3 which...
  4. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    Liquid Platinum is a very transparent hybrid amp. Please see the measurements here: https://www.head-fi.org/threads/monoprice-cavalli-liquid-platinum-technical-measurements.894843/ The current supplied SMPS, which is exceptionally low noise, works bests with the LP. The supplied tubes are also...
  5. atomicbob

    Official Seattle meet 01/25/20 IN West Seattle

    I hope to make it Sat. If I can, will have Bifrost-2 with a small production run Russian amplifier and either HD800-Jmod or Focal Stellia. AB
  6. atomicbob

    Seattle Meet Off the Chain 9/7

    First, many thanks to @BIG POPPA for organizing yet another successful meet. One of the changes that has occurred over time is the rather large increase in synergistic systems appearing at the meet. I could easily sit at a system and settle in (wishing micro-brew or glass of red in hand) and...
  7. atomicbob

    Seattle Meet Saturday Sept, 7

    email sent with long story. Short story here: after leaking in-wall pipe water damage, lab restoration is now complete, 4 months and $20K later. Hope to see you at meet and hear your big iron tube amp project.
  8. atomicbob

    Seattle Meet Saturday Sept, 7

    Anyone interested in hearing Schiit Bifrost MB 2 and ECP Audio T4 with Mullard CV4024 tubes to an HD800J-mod?
  9. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    Let me get this straight. Someone can afford an APx555 analyzer and then doesn't take the minimal extra step of constructing a Neutrik NC4MX breakout cable for 30R and 300R loading of each channel with other side of resistor loads having cable to pair of NC3MXX to plug into the analyzer balanced...
  10. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    Alex is correct in pointing out how people not skilled in the measurement arts will latch on to data which may be selectively presented, misleading, misrepresenting or deficient, and develop incorrect conclusions because a high profile audio tester was employed for the measurements. Then this...
  11. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    You may find a comprehensive set of measurements for the Liquid Platinum right here on head-fi: https://www.head-fi.org/threads/monoprice-cavalli-liquid-platinum-technical-measurements.894843/
  12. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    Please look at the blue line in the 12 dB attenuation graph in this post: https://www.head-fi.org/threads/goldpoint-sa2x-nobsound-ns-05p-passive-attenuator-comparison-technical-measurements.899382/#post-14761029 With 2 feet of a low capacitance cable, Belden 1800F, high frequency roll-off was...
  13. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    Harrison Labs 12 dB attenuator comprises the following based on data available from the internet: That is as simple as it gets. Attenuation is actually 12.24 dB. If Nobsound would actually change the NS-05P from a 50K Alps to a 10K Alps pot, that would be the better solution. I had seen the...
  14. atomicbob

    Schiit SYS Passive Preamp

    It has become popular to reverse a 2-input passive attenuator to switch between two outputs. While not exactly recommended, as long as the potentiometer is set to maximum and left at that position the source will only see the additional load of the pot, which is usually between 10K to 100K. The...
  15. atomicbob

    Monoprice Monolith Liquid Platinum - By Alex Cavalli

    As @Mr Trev states, this is an issue with ALL potentiometers, all amps, more or less at the counterclockwise extreme. Alps too. Solutions are costly, from sorting pots, exceptionally tight mfg specs, or stepped attenuators with precision film resistors. I use a GoldPoint SA2X and set the LP pot...
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