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Resonessence Labs Concero discussion/review thead - Page 103

post #1531 of 2259

Hi Bixby,

 

Quote:
Originally Posted by bixby View Post
 

What cord comes with it?  The link just brought me to the bottom of this thread.

 

 

 

The TeraDak U9VA PSU does not come with a mains power cord, but it does include the two cables seen in this photo from petemac110's post of several days ago:

 

Photo by petemac110

 

The cable on the right is attached to a jack that can be adjusted (inside the PSU) for any linear regulated DC voltage from 0.25V to 9.0V.  

 

The cable on the left is a very well-made alternative to the uber-expensive KingRex uArt Y and uCraft Y cables (and others) that allow you to pull only power from one USB source (i.e. a 5V PSU like the TeraDak or a 5V battery pack) while pulling only data from another (i.e. your PC or laptop).  

 

Open the spoiler to see Pete's photo of the back side of the cable on the left - into which you can plug another USB cable to provide data to the USB Type B connector that goes to your Concero (or any other USB-powered DAC).

 

Pete's intro and photos of the TeraDak PSU (Click to show)

Quote:

Originally Posted by petemac110 View Post
 

Howdy!

 

I'm a recent convert to the Concero, having purchased the original model to replace my old audio-gd DAC3SE. I've included a photo showing the size/scale difference between these two DACs! The Concero is a great DAC, with a bit better detail retrieval than the DAC3SE, but not quite the same tonality. I rate it very highly indeed, especially given the incredibly small form-factor.

 

I'm using it with a Squeezebox Touch and I initially powered the Concero via the USB socket on the Touch. It seemed to perform fine, but the main downside for me was the need to physically unplug the USB socket from the DAC each time I wanted to switch it off. I leave my Touch powered on permanently, but in stand-by mode with the clock showing on the screen.

 

The cheapest 'decent' option that I found was the Teradak 9V PSU which now comes with a 5V USB output too. The PSU also includes a 5.5mm OD/2.1mm ID power cable, and a USB 'power-only' cable with data USB piggy-back capabilities (if that makes sense!). The cost was around $60 landed to Australia. I believe there is a slight improvement in bass definition and the noise floor with the Teradak PSU, but it's a closely-run race. It goes to show how decent the regulator stages are on the Concero!

 

Using the 'power-only' cable means that the Concero automatically reverts to SPDIF input mode, whereas when it was powered via the Touch, I needed to cycle through the input modes via the Apple remote as the Concero would revert to USB input mode each time.

 

One interesting point to note is that I tested the noise levels from this PSU, as well as a few switchmode USB PSUs including an Apple unit, and a generic unit.

 

The apple unit was around 80mV noise, and the generic unit was over 200mV! The Teradak noise levels were indistinguishable over background noise levels. I couldn't measure down to microvolt levels though. Sadly I didn't test the USB output of the SB Touch. I will do this in future.

 

Overall, I'm impressed with this power supply given the quality of the build, the included cables, and the very slight percieved improvement in sound quality. The addition of a switch to power the Concero up and down is also welcomed. :)

 

 

 

 

 

 

 

 

 

 

I want to add that I wouldn't recommend using an external power supply with the Concero to anyone who is not hearing at least occasional power-related glitches.  

 

If this clutters up your desktop without improving the sound, why have it?  It's much more convenient to supply both power and data to the Concero via a single cable.  Don't fix what ain't broken.  ;)

 

In my case, as discussed several pages back, I've got a situation where my cheap laptop starts depriving the Concero of sufficient current (at least that's my hunch).  Using an external power source fixes that infrequent problem.

 

Thanks,

 

Mike


Edited by zilch0md - 1/10/14 at 1:56pm
post #1532 of 2259

Thanks for the response, I appreciate it.

 

So for $60 roughly landed you get the power supply and the trick USB cable and the 5 volt round power cable!

 

Sounds like as very cost effective upgrade............whoa wait a minute, just read the bottom of your post.  

 

So are you saying that aside from fixing the occasional glitch in your system that there is no other audible benefit with the Concero?

post #1533 of 2259

I have been using an Anker battery with my Concero for 2 weeks or so now, with the C2G cable mod mentioned earlier for a USB splitter, and I have to say that the differences are subtle to nill. I'm really not hearing any difference I can be sure of. Maybe it's very subtle, so subtle that I mistake it for placebo. IDK. But it certainly doesn't make a substantial difference on my Toshiba laptop. I can see how it could perhaps make a difference if your laptop has substandard USB ports.

It was a Christmas present, so no real loss. I think I'm going to keep it just because it lets me be 100% sure that I'm getting clean, full-spec power. And I can charge my phone or tablet with it on the road. But I wouldn't really recommend it either, unless you just want to play with something. 

post #1534 of 2259
Quote:
Originally Posted by manbear View Post
 

I have been using an Anker battery with my Concero for 2 weeks or so now, with the C2G cable mod mentioned earlier for a USB splitter, and I have to say that the differences are subtle to nill. I'm really not hearing any difference I can be sure of. Maybe it's very subtle, so subtle that I mistake it for placebo. IDK. But it certainly doesn't make a substantial difference on my Toshiba laptop. I can see how it could perhaps make a difference if your laptop has substandard USB ports.

It was a Christmas present, so no real loss. I think I'm going to keep it just because it lets me be 100% sure that I'm getting clean, full-spec power. And I can charge my phone or tablet with it on the road. But I wouldn't really recommend it either, unless you just want to play with something. 

As has been mentioned, the Concero has good internal regulation and isolation so the noise floor is already likely very low.  With the Modi though, I don't think it's regulation is on the same level as the Concero so the difference is more noticeable.  

post #1535 of 2259
Quote:
Originally Posted by bixby View Post

Thanks for the response, I appreciate it.

So for $60 roughly landed you get the power supply and the trick USB cable and the 5 volt round power cable!

Sounds like as very cost effective upgrade............whoa wait a minute, just read the bottom of your post.  

So are you saying that aside from fixing the occasional glitch in your system that there is no other audible benefit with the Concero?

Exactly. The Concero's power management is superb, but IF and when it's simply starved for power, it can't run on fumes, so to speak. My wife's laptop has a really noisy charger. When it's plugged into AC, lesser USB-powered DACs, like the Stoner Acoustics UD100 and the JDS Labs Objective DAC, both exhibited fairly frequent, audible noise that could be cured by unplugging the laptop from its switchmode PSU or... by supplying the DAC with clean power from my Anker battery via a "taped" Y cable.

I, personally, have to agree with manbear's sentiments that he likes knowing he's giving his Concero good clean power. Let it be all that it can be, but yeah, there's the inconvenience aspect, so it's all the better to go this route when you have an audible problem to fix.

And by the way, the Anker battery with C2G Y cable is a more compact solution than the TeraDak PSU - It's got a power cord, the cool Y-cable for power, and then a USB cable for data, snaking all over my desktop. But, I don't have to recharge the battery - everything's a trade-off, but sound quality comes first. :-)

Mike
Edited by zilch0md - 1/10/14 at 9:40pm
post #1536 of 2259

Well after about 50 pages of this thread, I've finally purchased a concero HD. I was following a number of dac threads and, while I've read a lot of project86's reviews, this is one of the most promising I've read so thanks for helping me with that decision. Hopefully it suits my taste.

 

One reason I really like the tube output on the havana is being able to control the sound. When I went from the decware taboo to my current amp everything was very sharp and I would get fatigue very fast until I swapped tubes. I suppose that's sort of why they have the filters though, right? The two most popular filters sound like the two tubes that I normally swap between.

 

Anyway, I think I'll end up being happy once I get a listen in. How long does it take to ship from Canada to US? I was expecting about a week

post #1537 of 2259

Congrats on your Concero HD! From my experience the filters don't really soften the sound that much. Edgy material can still sound rather sharp on the Emotiva Mini-X. I was curious at one stage of trying something like the GF Tubedac 11 with the Mini-X or putting a tube buffer between the DAC and amp.

 

I'd definitely elevate your expectations on shipping. Mine took more or less a week to get here to the southern tip of Africa which was rather impressive considering where Kelowna is.

post #1538 of 2259
Quote:
Originally Posted by Llloyd View Post
 

Well after about 50 pages of this thread, I've finally purchased a concero HD. I was following a number of dac threads and, while I've read a lot of project86's reviews, this is one of the most promising I've read so thanks for helping me with that decision. Hopefully it suits my taste.

 

One reason I really like the tube output on the havana is being able to control the sound. When I went from the decware taboo to my current amp everything was very sharp and I would get fatigue very fast until I swapped tubes. I suppose that's sort of why they have the filters though, right? The two most popular filters sound like the two tubes that I normally swap between.

 

Anyway, I think I'll end up being happy once I get a listen in. How long does it take to ship from Canada to US? I was expecting about a week

 

Congrats!  I'm really digging my HP.  It took me about a week.  

 

Did you buy from Resonessence directly?  I would be somewhat concerned about brokerage fees (I believe they used UPS) which are astronomical - for something like this is could be $150+.  I went through a US dealer, who didn't have it in stock, but was drop shipped from Resonecessence and they said if there was an issue they would eat the fees.

post #1539 of 2259
Quote:
Originally Posted by bobeau View Post
 

 

Congrats!  I'm really digging my HP.  It took me about a week.  

 

Did you buy from Resonessence directly?  I would be somewhat concerned about brokerage fees (I believe they used UPS) which are astronomical - for something like this is could be $150+.  I went through a US dealer, who didn't have it in stock, but was drop shipped from Resonecessence and they said if there was an issue they would eat the fees.

I purchased my Concero recently from Resonesence and there was no extra charge, took a week to central ca.

post #1540 of 2259

Thanks for the info about the edgy sound. I might look into a tube stage from decware or something. As far as the extra charge goes: there was none. It was 26 USD shipping from canada which is no problem for an international order.

post #1541 of 2259
Quote:
Originally Posted by rnadell View Post
 

I purchased my Concero recently from Resonesence and there was no extra charge, took a week to central ca.

 

Good to know.  

 

Quote:

Originally Posted by Llloyd View Post
 

Thanks for the info about the edgy sound. I might look into a tube stage from decware or something. As far as the extra charge goes: there was none. It was 26 USD shipping from canada which is no problem for an international order.

 

You won't see the charge until taking delivery.  But it sounds like Resonessence is in the clear here.

post #1542 of 2259

lloyd, I'd be interested to see what you think of the HD compared to the Havana.  I've got an HD but keep on hand my vintage r2r dacs because I like the contrast of sounds; some days I will tell myself I prefer one over the other but flip flop the next day.  I still haven't had a chance to hear an MHDT dac.

post #1543 of 2259

Has anyone tried the Concero/ConceroHD with the Woo Audio WA7? I'm still a newbie with dedicated DACs. Is there any reason why these DAC's would not go well with the WA7? To connect the WA7 to the Concero, would I only need a dual RCA cable?

 

Thanks!

post #1544 of 2259

After having the HP loaned out to others for over a month, I tried a little experiment, hooking the HP up to an iPad via CCK and a Y-USB cable (a crappy one, albeit) with external power.

 

Unfortunately, it didn't work. The iPad still complained about drawing too much current.

 

Lest it's due to the crappy cable I used, it looks like the Herus is the only one that can do USB DAC duties via CCK. :o 

post #1545 of 2259
Quote:
Originally Posted by tomscy2000 View Post
 

After having the HP loaned out to others for over a month, I tried a little experiment, hooking the HP up to an iPad via CCK and a Y-USB cable (a crappy one, albeit) with external power.

 

Unfortunately, it didn't work. The iPad still complained about drawing too much current.

 

Lest it's due to the crappy cable I used, it looks like the Herus is the only one that can do USB DAC duties via CCK. :o 

 

 

 

I have given up (for now) on the super-portable-DAC-amp-with-no-battery connected to an iDevice via CCK.

the power limitations just strangle the ability to drive more than IEMs, and even so there may be background hiss to deal with while your iDevice battery drains (a lot?) faster.

 

I had the Herus for weeks, and while (size) convenient the "limitation" to it sounding great with IEMs or low-impedence headphones limited "multi use" with differing headphones,

or as a passable office desktop as well as mobile solution.

 

Summary for my iDevices via USB or CCK cable:

 CEntrance HiFi M8 superb due to battery and input options.  cons:  not so small.

 

waiting for a Geek Out (Air?) + battery solution that may match well with iDevices

or

Resonessence making a Herus+battery+no background hiss device one day.

 

maybe this is due to not being able to afford the Chord Hugo ?

ha!

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