Showing (off) your Roon setup - description and photos [2015 - 2021-03]

Upgraded my headphones endpoint with a set of MrSpeakers Ether C Flow’s and a Pro-Ject Pre Box S2 Digital pre-amp/DAC. I picked up the headphones in Delft this morning after an hour of listening and comparing with a set of Audeze LCD-XC’s. The Raspberry Pi 3 is powered by RoPiee.

Sorry but all of the cats were stubborn today. :slight_smile:


Awesome setup! I recently got turned onto the idea of ATC SCM40As as a possible upgrade to my Revel F208s. I love the idea of using my DEQX PreMate to drive the speakers and subwoofer(s) directly, knowing that active crossovers and onboard amplification or perfectly fitting of each driver. I’ve heard great things about these at high volume levels. Do they still shine at lower volumes?

Morning Brice,

Thanks. I’m really happy with it’s simplicity of my system and although i’m biased, the sound quality in my opinion is amazing for the £’s spent.

I’ve not come across the DEQX PreMate before but from what I read it looks to be a great piece of kit and a good match for the ATC SCM40A.

The 40A’s do go loud for sure and without a hint of distortion or loosing control. I chicken out before the speakers do! As for lower level listening they retain all their detail, tight accurate bass and of course the wonderful midband.

I originally had the passive 40’s with Naim amplification (NAP 250DR) which was a fabulous combination. However, when I auditioned the active 40’s with identical source, I was blown away and the credit card came out without hesitation.

You really do need to audition a pair and be prepared to bend the card!!

Good luck


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The midband is amazing, but I was very disappointed with bloomy bass (in a large room with the speakers in plenty of space) and non-extended treble. As always, what matters is your room and your ears.

That’s what I’ve read in reviews which is why I asked. But I agree each room and set of ears is different. Besides, I’d rather have speakers that played well at medium and loud volume levels than quiet, if I had to choose.

Hi Folks!

Here’s my current build. This is in a space in my attic about 15’ wide and 18’ deep, that opens to another section with stairs and another hallway, So wall on the left-hand side and open on the right.

This has more or less been a six month experiment in isolation. The ‘rack’ you see was purchased from WalMart for $15. Yes, $15, you read that correctly. Plastic tubes and horrible quality MDF.

From there I started crafting custom isolation platforms (IKEA chopping boards, ebony cones and pads and Herbies isolation materials mixed in) to see what impact I could make on SQ. To put it mildly, after adding one platform per component and listening for a week or so before adding another, I was blown-away with the massive improvements at every stage. Suffice to say, I’m a true believer in isolating components now.

Here’s the list in order of signal path -

Roon Core w/ Tidal integration on Apple Mac Mini 2012: Core i5, 2.5 GHz, 8 GB Ram, 256 gb SSD

Wireworld Ultraviolet USB Cable

M2Tech Hi-Face EVO USB to SPDIF Converter

AudioQuest Cinnamon CAT-7 Ethernet cable


XiangSheng 728A tube preamp

Pair of Monarchy Audio SE-100 Delux mono amps

JM Labs Focal Chorus LCR700 speakers

(not shown, but recently added - Sunfire HRS-10 Subwoofer)

Using PS Audio Ultimate Outlets Hi-Current 15A AC Conditioners for all electric supply

All interconnects and speaker cabling Cardas Quad or Neutral Ref

Assorted isolation devices, with a lot of Herbie’s products

(also have a NAD 270 connected to the same pre that drives Magnepan MMGWs)

Ok - now a sincere question for the forum -

When I first started out with Roon I was using a fairly robust laptop (HP EliteBook, 16GB RAM, 256 SSD) running Windows 7 Pro as my Core server. A while after that I picked up the mac mini, and I’m happy to say heard a decent improvement in the overall SQ compared to the Windows laptop.

Now I wonder if I should use both the laptop and the mac mini by configuring the Windows laptop as my core, and keeping the mac mini in place, but using it as a bridge. Divide and Conquer? The thought is that by letting the Windows laptop handle the core computing and dedicating the mac mini to streaming, I should see another leap in SQ. But, not sure, and would love any input. As one further FYI - I do plan on updating the mac mini with the Uptone Audio DC conversion kit and a dedicated linear supply, but probably not for a another couple of months.

The only other aspect is that all networking is via wifi, which is a dedicated channel for this system and easily pulls 120MB/sec downstream. So no issue with bandwidth.

Thanks folks, happy to be here and loving the Roon experience with Tidal and my own library.



You make a good point about the room Joel. I personally feel the room is a fundamental component of our systems but the least understood and hardest to fix if not right. There are so many variables. It’s clearly not just about the overall size/volume but the ratio of dimensions, floor coverings, wall construction and covering, furniture etc. etc. ect. It’s a minefield.

Speakers are a very personal and objective thing for sure. For me in my room, the 40A’s really work. They are not bloomy, have excellent treble which is smooth, clean and extended as far as my old ears can manage. And that wonderful midband amazes me every listen.

Core and Output on separate devices is recommended by Roon for best SQ. I’ve been very pleased with a microRendu and LPS-1 PS. You can certainly use the MacMini with Roon Bridge for this, but it’s still quite a large footprint device. Try it out with what you’ve got and if you like the results you can consider a smaller footprint Output in future.


I strongly agree with this. In addition to separate Core and Endpoint, Roon also recommends having the Core outside the listening room, connected via ethernet to the lower powered, lightweight endpoint, if you can.

I would recommend anyone follow Roon’s advice there - if practicably possible.

Your DAC’s and pre/amp’s designer/s would probably also recommend the same, if you could ask them, for the same reasons - EM/RFI and leakage currents (sometimes called stray currents) being the main reasons.

Really sweet setup there @Chris_Talbot btw

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6 posts were split to a new topic: Separating Core and Output

Thanks for the replies Andrew and Sean!

I need to run some tests on my home ethernet (I didn’t install, was here from previous owner) and see if it’s up to snuff.

If so I’ll go ahead and swap the Roon Core back to the Windows laptop and change the Mac Mini to Roon Bridge and report back. Thanks!


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My simple system. Win10 fanless tablet running Roon with a glorious, large display of album art. Peachtree nova300 delivering articulate power to Sonus Faber Concertinos and REL T9.


My NUC7i7 running ROCK.

Currently sitting on my desk but I will move the NUC in a cupboard near my receiver and TV.
I went for a Wireless Network Adapter with detachable antenna so that I can hide it behind the TV set.

These antlers are your WiFi antennae? :smiley:

Yes Sir.

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Trying something different (because why not :smile: )

I picked up a wonderful Allo USBridge, with Allo’s tested and approved WiFi adapter.

The USBridge is powered by my Chargetech PLUG (54,000mAh capacity). So the DAC’s USB input is de-coupled from mains power. While the powerbank wouldn’t have the lowest noise output, the USBridge’s power filtering and low noise linear regulators come to the rescue.

I have a feeling this is the best my Hugo2’s USB input has sounded (to my ears, in my chain etc so YMMV of course).

Rock solid performance over WiFi too, DSD256 via DoP plays without any drama (looking at you RPi3 :angry::grin: )

Chain is Allo USBridge > Hugo2 > Senn HD800-S headphones

Really nice sounding.


Well… That escalated quickly.

Dropped by @Wifibob’s excellent WifiMedia store this afternoon (everyone within a day’s travel of the Netherlands should do so once – it’s like a candy store for audio gear, filled to the brim with anything streaming and (Darko’s words) FutureFi with nary a thing that doesn’t work with Roon) for trying out the Oppo PM-3 headphones (my AKG K550’s are falling to pieces after 5+ years of service).

While I found the Oppo’s a bit bass-heavy and muffled in top, a ‘just-in’ pair of MrSpeakers Aeon C Flow magically showed up. Half an hour later I headed home with a bit of explaining to do to the mrs., but hey – my little headphone nook purrs like never before… :slight_smile:

Edit: updated schematic :slight_smile:


Now that’s an idea I hadn’t considered - a powerbank to charge the USBridge. Do you know what current it needs to deliver - from memory not much other than startup (but get that wrong and I’ll be rebuilding it!).

I have 2 powerbanks lying around so easy to try them if they can provide enough juice. Oh and how long between charges for you? I think mine are 20,000mAh capacity, so obviously I’d get less.


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Hey Phil!

Let’s carry on any further discussion in the USBridge thread. It might help others to give it a try and a listen.

Cheers! Sean.


Well, the expression on your face was about the same as in the picture when you tried the MrSpeakers after listening to the OPPO. :wink:

It was nice having you in the store. Hopefully the Mrs didn’t give you too much trouble. :grin: Enjoy the headphones.

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