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  1. gene

    Yamaha CX-A5200 and MX-A5200

    No an amplifiers distortion should NOT increase like this when it's bridged. Yamaha isn't saying anything. When not bridged, the distortion is good, but not SOTA.
  2. gene

    Star Trek: Picard

    One thing that really bothers me though. With our current technology, we can reasonably predict when a star will go super nova 1000s if not millions of years in advance. How could this elude the smarter, more technically advanced Romulans of the 24th century? Writers of Sci-Fi are so stupid...
  3. gene

    Yamaha CX-A5200 and MX-A5200

    Yamaha MX-A5200 11CH Amplifier Preliminary Measurements Found a perplexing issue on the MX-A5200 11CH amplifier. The FFT in bridged mode produces much higher odd order harmonic distortion products. I attached a plot comparing the single amp vs bridged amp modes both tested at 1 watt. This is a...
  4. gene

    D&M just blurred the line again, should they go much further?

    Yea I also asked Sound United if it were possible to reduce the voltage gain of their amp stages going forward so they wouldn't clip until the preamp drive level is 2Vrms instead of 1.2Vrms. Most amplifiers will hit full power at 2Vrms. This would clean up the FFT on the preouts by not clipping...
  5. gene

    D&M just blurred the line again, should they go much further?

    I dont think I swept fullrange past 1Vrms preouts on the 3300w. I did 1khz psweep vs distortion though which the SR8012 was able to do too. looking back, You can see it at 2vrms on the 3300w where odd harmonics are dominating the FFT of the preouts. I missed this not realizing the amp section...
  6. gene

    D&M just blurred the line again, should they go much further?

    You won't be able to turn off the amps but at least be able to break their connections to the preamp so they don't get overdriven while using the receiver as a preamp only.
  7. gene

    D&M just blurred the line again, should they go much further?

    Run a full bandwidth sweep and it will shut down your Denon. The power amp goes into clipping at 1.5Vrms even unloaded. This is an unlikely reworld scenario but on the bench it's very real. I'm asking Sound United to either have a preamp mode on ALL models with preouts or at least lower the...
  8. gene

    D&M just blurred the line again, should they go much further?

    It won't shut down the receiver with discrete tone tests but if you sweep, it likely will. Both Denon and Marantz receivers should exhibit similar behavior on models that don't have a dedicated preamp mode to bypass the power amp connections.
  9. gene

    D&M just blurred the line again, should they go much further?

    Rerouting the main channels to surrounds disengages the connection to the amp for the main channels.
  10. gene

    6kwatt Sub with dual 21" Drivers Costs $100k: Are they Insane?

    The YG Acoustics InVincible 21.2 is a monster subwoofer with twin 21-inch “BilletCore” drivers milled from solid slabs of aircraft-grade aluminum. The $100,000 InVincible 21.2 stands nearly six feet tall and weighs in at 462 pounds. With 6,000 watts of power on board, this sub promises to be the...
  11. gene

    D&M just blurred the line again, should they go much further?

    Distortion vs output level is shown in the graph of this preview article.
  12. gene

    D&M just blurred the line again, should they go much further?

    No. It will still do 4Vrms unclipped but without the amp disengaged, the receiver will likely go into protection on a sweep test above 1.5Vrms like the SR8012 did and 3rd order harmonics would,rise do to the unloaded power amp clipping. Read my SR8012 review for more info.
  13. gene

    D&M just blurred the line again, should they go much further?

    Yes at least when the preouts of the main channels are bypassing the power amp stage. As I found in the SR8012, without a preamp only mode, the power amp would clip driving above 1.2Vrms which could affect the overall distortion of the preouts. This won't happen in the 3600 scenario where the...
  14. gene

    Star Trek: Picard

    I'm cautiously optimistic but have some concerns: Alex Kurtzman involvement, just look at STD as example CBS/Hollywood woke movement ruining our favorite shows/movies Patrick Stewart is a bit old to play the part We shall see. I guess make it so #1.
  15. gene

    D&M just blurred the line again, should they go much further?

    While the Denon AVR-X3600H and Marantz SR6014 are more similar then they are different, the SR6014 does at least have some enhancements from a quick glance such as: 110wpc vs 105wpc of Denon slightly larger power supply (680 watt power consumption vs 670 watts of Denon 3600 model) - note this...
  16. gene

    5 Killer $2k/pair Tower Speakers Compared for 2019

    You seem to be suffering from a cognitive bias known as Dunning-Kruger effect. It's distorting (pun intended) your perception and understanding of basic physics.
  17. gene

    5 Killer $2k/pair Tower Speakers Compared for 2019

    Because we reviewed that speaker 3 years ago: https://www.audioholics.com/tower-speaker-reviews/revel-concerta2-f36-tower-speaker-review This article and YT video focused on tower speakers James Larson reviewed in 2019.
  18. gene

    5 Killer $2k/pair Tower Speakers Compared for 2019

    Recently, Audioholics reviewed five of what we consider to be some of the better speakers in the tower loudspeaker category. In this article, we take an overview of these five speakers and look at what each one brings to the table. RBH Sound R-55E Klipsch RP-8000F B&W 603 Paradigm Premier 800F...
  19. gene

    Yamaha CX-A5200 and MX-A5200

    No for 2 reasons: 1. No OSD overlay. Hate setting up processors via PC or tablet. 2. ATI doesn't really cut good deals for reviewers like most manufacturers do.
  • RBHsound.com
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