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  1. bboris77

    Fosi Audio ZA3 Amplifier Review

    So, the incoming signal is split and the subwoofer out side then goes through an analogue low pass filter?
  2. bboris77

    Fosi Audio ZA3 Amplifier Review

    Does the subwoofer out on this unit operate in digital domain? I am wondering if the signal is going through an additional AD and then DA conversion. If that is the case, it may be preferable to simply split the signal out of a DAC and feed it to a subwoofer and adjust the low pass filter...
  3. bboris77

    Let's stop calling Class D amplifiers "efficient" when they are not.

    I just measured the temperature of the top my Yamaha with an IR Temperature Gun and it ranges from 30-40C (86-104F) with the hottest spot inside the amp being the heatsink at 45C (113F). My room goes up to 26C (78F) during summer, while downstairs is kept at 22C (71.6F).
  4. bboris77

    Schiit Vidar 2 Stereo Amplifier Review

    My opinion of their post-2020 products completely aligns with yours, and after having purchased more than 10 of their earlier products, I haven't bought one since COVID. I am very convinced that they would make a Class D speaker amplifier if they could make money on it. I think that the whole...
  5. bboris77

    Let's stop calling Class D amplifiers "efficient" when they are not.

    That would be my assumption as well. I do not keep the room closed most of the time, and I run my speakers at less than half volume since they are in nearfield scenario. I do have a tendency not to turn off my speaker amps and keep them running. The issue with the receivers I have is that they...
  6. bboris77

    Let's stop calling Class D amplifiers "efficient" when they are not.

    I have a fairly naive question not having owned a Class D speaker amplifier for any significant length of time. I have always had Class A/B receivers and integrated amplifiers in my main listening room that doubles as my office. It is a fairly small room on the second floor of our house that...
  7. bboris77

    Fosi Audio V3 Mono Amplifier Review

    Their response makes me actually want to try one of their amps.
  8. bboris77

    Fosi Audio V3 Mono Amplifier Review

    I like Erin in general, but it did rub me the wrong way how he kept saying that the damaged amp is going to go into the trash. It kind of implies that this is where it belongs and creates an impression that these amps are disposable. To be fair, I felt similar about Amir’s old review of the Sony...
  9. bboris77

    Fosi Audio V3 Amplifier Review

    Has anyone been able to purchase the 2024 version with volume adjustable preamp outputs from Amazon? I’m just wondering if it is only available from their own website.
  10. bboris77

    Schiit Vidar 2 Stereo Amplifier Review

    Ok, rather than arguing with you, I will provide a quote from Jason Stoddard, the designer of these amps: https://www.head-fi.org/threads/schiit-happened-the-story-of-the-worlds-most-improbable-start-up.701900/page-1607#post-13707858 He says: "Some mechanical noise is typical of most...
  11. bboris77

    Schiit Vidar 2 Stereo Amplifier Review

    I know, it’s ultimately about qc quality and luck. However, the odds are much higher that a high power/capacity transformer such as the ones used in class AB speaker amps will have some audible and physical vibration. At least that has been my experience from dealing with them.
  12. bboris77

    Schiit Vidar 2 Stereo Amplifier Review

    @amirm, did you notice any transformer hum/buzzing coming out of the unit during your testing? It is a fairly common issue with many class AB power amplifiers and receivers that annoys me and may eventually push me to a class D speaker amplifier.
  13. bboris77

    Fosi Audio ZA3 Amplifier Review

    I have a very specific question for anyone that may be using both rca and balanced inputs and is connecting a subwoofer: Do you need to readjust the volume level on your subwoofer whenever you switch from balanced to unbalanced input on your ZA3? I’m planning to use both inputs and it would be...
  14. bboris77

    XMOS driver settings for no cutoff/delay

    If I were @SMSL-Mandy, I’d be contacting Qobuz to figure out how they are managing to keep these XMOS devices from going to sleep. It ought to be a fairly simple/trivial fix that would keep a lot of Mac users happy. I know we tend to be forgotten since we’re in the minority, but we are fairly...
  15. bboris77

    XMOS driver settings for no cutoff/delay

    OMG, this workaround actually 100% worked. This means that solution is very simple but someone has to write a piece of software that does this in Mac OS.
  16. bboris77

    SVS SB-3000 - inside pics, specs and thoughts

    What about low-level rumble when LFE knob is turned all the way up (to LFE)? Mine SB-1000 does this and it also has a very low-level hiss that sometimes gets very quiet, and sometimes a little bit more audible. SVS is sending me a spare plate amp to see if makes any difference. It really is not...
  17. bboris77

    YAMAHA A-S701 - tear-down, thoughts about the internals & few measurements

    Yes, fortunately I did not overtorque the other side. Still fairly disappointed that it broke at all as I’m fairly gentle with my equipment. The sheet metal that the posts screw into must be fairly thin to wear out that quickly. Lesson learned - I’ve gone back to banana plugs now on my other stuff.
  18. bboris77

    YAMAHA A-S701 - tear-down, thoughts about the internals & few measurements

    When you say 2 piece assembly - do you mean two different binding post modules with 4 posts each? Because, the one for the right speaker is working perfectly fine. I only need the one for the left speaker (which is on the right side lol). Unless you mean the 4-post module comes in two parts...
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