I have noticed the following problem with a BRAND NEW Musical Fidelity M6si. When a Denon Audio Technical CD C39-7147 CD is played tracks 46-53 spot frequencies on two different CD players (Emotiva ERC3 and Sony DVPNS57P), regardless of XLR or RCA input, and the volume control is raised or lowered manually or via remote, significant static is heard. I also ran same test via USB input from https://www.youtube.com/watch?v=d3hTyKlza2c Those with the M6si or better are asked to weigh in on the question as to whether or not "static" is heard when playing spot frequencies and adjusting volume up or down.
Normal or Abnormal?
- Thread starter gdhal
- Start date
gdhal said:
It's probably interference being caused by the motor used to drive the volume potentiometer, which of course is still connected when you're using the control manually, so the volume knob 'drives' the motor when you turn it.
Given that the tracks in question are of single frequency sine waves, they probably don't mask this noise as well as would multifrequency content such as music.
This noise isn't unknown in amps using motorised volume pots, and only occurs when changing level, not when you have arrived at the volume level you want to set. I'd ignore it and not worry about it.
matthewpiano
Well-known member
itsme
Well-known member
Hi Matthew, without hijacking this thread. Would you be so kind to share your opionion on your a-s501 with the adapter.
I'm in a proces of buying QA 3020 and doubting the R-n500 or go alternative to a AS-501 as my TV can be a radio source with de DVB-C connection, so a FM tuner would be redundant.
Some doubt the real power of Yamaha but i've read that the powersupply on these latest models is really good (501 and 701)
Thank you very mutch.
I'm in a proces of buying QA 3020 and doubting the R-n500 or go alternative to a AS-501 as my TV can be a radio source with de DVB-C connection, so a FM tuner would be redundant.
Some doubt the real power of Yamaha but i've read that the powersupply on these latest models is really good (501 and 701)
Thank you very mutch.
matthewpiano
Well-known member
Hi itsme (and with apologies to the OP). I've got no issues with the sound using the YBA-11. I use it for streaming Spotify Premium from my Hudl 2 tablet and it sounds very good - plenty of clarity across the frequency range and no spurious digital noises like you might have expected from Bluetooth in the days before aptX. The only slight negative is that whenever I get a push notification from Facebook or email on the tablet it momentarily interrupts the music. However, I only use Spotify as a subsidiary source for trying artists/albums out before buying. If you are planning on streaming a lot, I would be inclined to go with the R-N500 or the R-N602. I use Yamaha's network control app with a CRX-n560d in the bedroom and it works very smoothly indeed for streaming files from any source on my network. Spotify Connect on the 560 is also excellent and totally interruption free. The '560 is some way off the A-S501 for overall sound, but I'd expect the R-N602 to be virtually indistinguishable and worth having for the additional flexibility (hi-res streaming, internet radio, Spotify Connect). Another alternative I'd expect to be excellent (based on having the previous model) is Onkyo's new TX-8150, which even adds DAB.itsme said:
Overall, the A-S501 is an excellent amp. I've been enjoying it for a couple of weeks now. This afternoon I did some comparisons with the Brio-R and I feel the Yamaha grips my Dynaudios much more effectively, producing a very involving and controlled sound. It is nice to use, and the headphone output also sounds super through my Beyers. I may consider moving it to our study/spare room at some point and putting an R-N602 into the main system, though I do fancy an A-S1100 or A-S2100 one day if I can find a way of accommodating streaming/radio elements. Hope this helps!
Thank you so much for this reply. Admittedly, I am somewhat comforted by it. To that end, I welocme any other critique you might have of the M6si.
My previous reply was meant for #2 and #3.... Thank you so much for this reply. Admittedly, I am somewhat comforted by it. To that end, I welocme any other critique you might have of the M6si.
Hi guys, I also have a question.
Is it correct tot assume that the 501 is better than a Rega Brio R?
Is it correct tot assume that the 501 is better than a Rega Brio R?
Matthewpiano, when you write "it does the same", I ask the following out of curiousity.... Is this to say you have tested the volume control noise or lack thereof using spot frequencies as I did? Most people would not go to that extreme. So if I understand you correctly, your unit pot volume control can be adjusted manually and/or moved with the rmote control. And then, when listening to music under "normal" conditions there is no audible detection of noise, but when you listen to test tones and rais/lower volume, at that point you can hear noise. True?
Hi gdhal, I apologize if I offendend someone.
Other than chronological convinience, I have no other reason.
Cheers
Other than chronological convinience, I have no other reason.
Cheers
matthewpiano
Well-known member
Hi gdhal. When adjusting the volume control using the remote control on the Brio-R there is motor noise through the right channel, and this can even be heard when playing music. I hope this is helpful to you.gdhal said:
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