Jeff's System

Dr Tone

Banned
Joined
Apr 13, 2016
Messages
316
Location
Calgary, AB
Recently replaced my Devialet 220 Pro with a McIntosh C47 and MC301 mono blocks. I'm currently using my Ayre Codex as a DAC.

TO DO: Find my end game DAC and then maybe move up to the C1100 preamp.


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Very nice system, congratulations. Seems that you have your speakers on top of the carpet, that is the worst thing to do. If you want to protect your floor get a granite slab to put under the speakers and put a thin layer of rubber under the granite slab.
 
Very nice. How about describing changes heard when going from Dev to Mac please?

Devialet is fast with extreme SNR which gave instruments a spooky sense of just coming out of nowhere. The later part is hard to describe and has to be experienced. Many find that trait unnatural about the Devialet, but you get used to it and can actual miss it when listening to other kit in comparison. The Devialet also has more controlled bass (damping) but not the same low end extension.

McIntosh is quite a bit fuller and just plain rich sounding. Romantic is word I like to use. Polar opposite really but good in it's own ways as I'll describe next.

I spent the last 5-6 years going in a direction that ended up causing a little ear damage. Focal and to a lesser degree the Devialet as I had to turn it up a little too much to get it to sound it's best. It was time to get back into just enjoying the music at lower volumes and knowing my kit will retain some value down the road unlike the Devialet.
 
Jeff.......You have an attractive system. The McIntosh C47 and MC301 mono amplifiers make a nice package. I like your rack, too. Do you prefer the Ayre Codex DAC over the internal DAC in the C47?
 
Jeff....... Do you prefer the Ayre Codex DAC over the internal DAC in the C47?

Yes, the Codex is just a much better sounding DAC, IMO.

The bottom end of the Codex is controlled and defined where the McIntosh is boomy and out of control. The Codex handles red book content better, it's filtering is superb.

I'm using HQPlayer which takes the filtering difference out of the picture but I still find the Codex has a richer more 3d like presentation in comparison to the C47 which is kind of flat in comparison.

Of course all my subjective opinion.
 
The vibration produced inside the speaker should be transmitted to the floor as fast as possible to avoid frequency cancellations or reinforcement caused by the vibrations and allow a more linear operation of the drivers.
Each material has its own resonant frequency, has its own speed of conducting vibrations and conducts certain frequencies better than others. What is intended to be coupled to the column is a material that is rigid enough to quickly drive the vibrations to the supporting surface, but, materials such as carpeting function as vibration isolators and because of that they do not dissipate them to the floor.
The use of the granite stone under the spaeakes serves to pass the vibrations of the speaker to the stone, the rubber (thin) that I suggested to place under the stone serves to avoid vibration between the stone and the floor (when it is rigid).
I hope I've been clear.
Regards
 
But I´ve been studying this for years, the theory and practice, I'm not saying that I'm better than the others, its only my opinion, I just say: Try It. There is some other stuff specific for this purpose from Stillpoints, Nordost, and VCS (my company), but in this case you have to spend some money.
I would like to say a lot about ''acessories'' but for now I only say: try it and trust your ears, i will try to say something more latter.
Regards
 
The Ayre Codex has been replaced with the Resonessence Invicta Mirus Pro and I couldn't be happier.

http://www.audioshark.org/computer-...way-resonessence-invicta-mirus-pro-12309.html

I've also found that Roon's linear phase smooth filter and DSD7 CLANS modulator works superbly with the new DAC. Eveything is upsampled to DSD128 and sounds fantastic. This vastly simplifies my playback chain without HQPlayer.

My SOTM sMS-200 and battery power supply is back in the picture with the Mirus Pro. It's in Roon mode.
 
Awesome system! I have not tried up-sampling in Roon, how does this work? I have been really happy with the new W4S DAC. Maybe not high enough level for your system, however this past weekend I hosted our audio club meeting and several members were impressed. At least 3-4 are planning on picking up a new Wired DAC from EJ...
 
Awesome system! I have not tried up-sampling in Roon, how does this work? I have been really happy with the new W4S DAC. Maybe not high enough level for your system, however this past weekend I hosted our audio club meeting and several members were impressed. At least 3-4 are planning on picking up a new Wired DAC from EJ...

I'm a big fan of upsampling for the sole purpose of bypassing the DAC's internal filters with better implemented computer algorithms. Your DAC does DSD256 you should spend the 2 seconds and turn on Roon's upsampling, I think you might be pleasantly surprised. I know you have more than enough computer power from our past Roon discussions.

1) Enabled head room management. -6db of headroom. This is needed to avoid inter-sample clipping.
2) Set upsampling to D256, CLANS 7 modulator and Linear Phase or Minimum Phase smooth filters. Precise filters if you want more top end at the cost of a little more pre and or post ringing.

Linear phase has perfect time delivery but some pre and post ringing. Minimum phase has zero pre ringing but at the cost of some time alignment changes at certain frequencies.

If I was to describe the sound difference between linear and minimum phase it would be linear has a solid instrument and soundstage placement, minimum phase has the best transient response because of lack of pre ringing but can smudge the sound stage a bit.

Personally I've moved back to HQPlayer again, after an extended period on Roon's upsampling I was missing the HQPlayer poly-sinc-xtr filter. It has some magic mojo.
 
Thanks for the instructions. I will give it a go... much appreciated...

If you could also try upsampling to PCM if you don't like the DSD sound. I won't say what I believe that is, I don't want to let any expectation bias creep in on your listening session.
 
I love DSD... ok, looking through the Roon setup I cannot find the settings you mentioned :(...
 
I love DSD... ok, looking through the Roon setup I cannot find the settings you mentioned :(...

Click on your device in the bottom of roon to the right of the playback progress indicator. To the right of your device in the pop that came up click on the 3 dots and choose DSP Engine.

It's done on a per device level.
 
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