Category: Mcru linear power supply for chord qutest dac

Mcru linear power supply for chord qutest dac

22.10.2020 By Shakakasa

The design rationale behind these power supplies is below. All our power supplies are plug and play, simply attach to the DAC using the supplied micro USB connector and attach the supplied power cord, plug into the mains and enjoy. Who was the god of gateways, and was a two faced god looking in both directions. Likewise a good voltage regulator is required to look in both directions at once.

From one direction you have the mains supply, with the ever increasing noise, distortion and random variation that exists on our household mains supply. In the other direction you have the device you are supplying power to. The load will be asking constantly varying current, and the job of the regulator will be to ignore the varying load and to supply a rock steady voltage that ignores the changing load.

To ask a single regulator to perform both tasks means that it can not do either as well as it could.

The first regulator is close to the mains supply, its job is to take the incoming mains and convert it into a low ish noise DC supply, and to isolate the mess that is our household power lines from what follows. In most power supplies on the market, the output of the first stage would be directly connected to the load device, and that would certainly be an improvement over the supplies that most manufactures provide.

But we can do better by adding the other face of Janus to the system. The second regulator is supplied with a clean low noise supply, and its job is to handle the changing demands of the load. To do that, it needs to be as close to the load as possible. So we remove the second regulator from the main box, and place it close to the load, both electrically and physically, that removes it from the noise and interference of the mains supply, and allows it to spend its time looking towards the load.

Typical commercial voltage regulator chips are general purpose devices, but are not quiet enough for the task on hand, so the second regulator uses a bespoke regulator based on a low noise multi stage filtered voltage reference, a low noise error amplifier and a high current low resistance mosfet.

To allow it to handle the changing load it also needs to supply current on demand, so all the remaining space in the second regulator is filled with low impedance capacitors to act as a local energy source. Using the two stages of regulator, we achieve a noise floor equal or better than most battery supplies, and a effective source resistance of the order of 0. BlackSilver. Richard Lockwood verified owner — 1st October Having decided to invest in a Qutest after getting a Cyrus CD t cheap er on eBay, I was slightly disappointed by initial listenings.

And gobsmacked by the flimsy wall-wart power unit — especially after reading a review saying that Chord had worked hard on the internal power supply thus negating the need to replace this plastic n pins thing!

More of everything. This is what all the fuss is about! Go for it — it is worth the investment and is impressively well-made. Only logged in customers who have purchased this product may leave a review. Your Message. Email address:. Log in. Will be used in accordance with our Privacy Policy. Click to enlarge. Next product. Rated 5.Had the MCRU on for about an hour to get it warm. These are initial impressions.

My only problem is the mids seem a little compressed but this may be because of the volume issue and I might be wrong or change my mind on this. These are initial impressions after all. The Qutest has been on my radar for a while, battery supply has is appeal.

I've heard the silent switcher on a Pi, it was better than a plug top unit, no better than a discrete reg psu that was also tried. Are there any others on the market like this? I wish I had been able to try a linear power supply with the Dave when I had it. I keep mine in a lipo safe bag that if they do that the fire is contained. When I buy batteries I only buy them from genuine sources.

Li-ion are rated for either 10, 20 or 30 amp peak discharge. A couple of years back 10 amp was the best you could get but chemistry has improved over the years.

So tales of them over heating and popping tend to be historic. Jamie, I've actually been trying various PSU options over the past couple of months.

I have a Mytek Brooklyn and I've been trying everything that I can get my hands on with that. The list includes, not in any order though. I've yet to try a Li-ion battery supply topped off with some big old supercaps. There's some noise on the DIY forums that this option has some legs. I'm waiting to see measurements before I jump the gun. I would wait 48 hours then assess again Quest. Leave the qutest playing constantly for that time just turn your pre and amp off. Over charge and discharge many times they always swell.

A smooth or apparently less detailed sound is normally a sign of less RF noise ie a good thing but equally, LPS are not all low RF noise and Rob Watts tried various other power supplies including a battery and concluded that the supplied supply was not bettered by these other supplies including the battery so your result is a bit of a conundrum.

Having said that quite a few Qutest owners do prefer a different supply to the Chord supplied one. It is not necessarily a matter of eliminating mains 'stuff' as you call it but more likely selecting a power supply that itself generates the least amount of noise. RF noise is not audible by itself but it impacts on the analogue stage of the DAC and introduces a harshness or false detail to the sound.

Without being a boor, firstly you have to determine if there is any difference between standard and aftermarket supplies, this can only be conducted unsighted. Regarding the second part of what you said, are you really really sure that ones wife or girlfriend listening from another room will not do? Seriously though, I would take you rather more seriously if you would modify your advice to say, "this is best conducted unsighted".

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mcru linear power supply for chord qutest dac

Clear editor. Upload or insert images from URL. Recommended Posts. Posted September 4, Find results that contain All of my search term words Any of my search term words Find results in Well have a listen and then tell me they dont make a difference.

Morning Camross, Yes I have my Qutest running with the Ifi Ipower 5v power pack Instant improvment slightly bigger soundstage and to my ears better clarity Definitely an improvement over the supplied adaptor The 5v version is the only one that comes with the micro usb adaptor The amp rating is 2.

Cheers Deano. I might start with the IFi and see how it goes. I am planning to get a Sonore Optic rendu in the future and PS-1 can power both units. What sort of PSU does it come with by default? And just as an aside, I've not been particularly impressed by iFi stuff so I'm not sure it's actually an "upgrade.

Chord Qutest + Sbooster mkII

Perhaps there's an awful lot of filtering and maybe even regulation though SMPS are obviously already regulated on the power coming in within the DAC itself making it behave like a much more expensive PSU.

However a Uptone JS-2 sounded better. Not a huge difference but definitely better with smoother more natural highs, more space around instruments darker etc. Note that the JS-2 is two thirds the price of a Qutest Very interesting. No improvement I can understand. Sounding worse is baffling, but if you've auditioned it, one can't argue. Well each to there own, much like cable talks lol I have the Qutest and the M Scaler both running off Ifi Ipower products and these two together the sound is far superior to the stock psu's But as I said each to their own [emoji6].

Have both the Qutest and Mscaler running off there own PSs and am not tempted to change them on the basis of what I have read on forums. Rob Watts knows his stuff and there is the issue of invalidating guarantees. However, a better BNC cable has resulted in a marked improvement to the Mscaler.

So if Rob knows his stuff then the BNC cables supplied in the box should be perfect with no need to ever replace.The Qutest is the successor to the Chord 2Qute adopting a similarly quirky name which is a trend of some products in the Chord stable.

Like the 2Qute, the Qutest looks nothing much at a distance with its simplicity and small box design. The Qutest is very smartly made with a black aircraft grade aluminium casing, typical glass lens window through which you can look into the electronics, and as with the Chord DAVEthe Chord logo plaque is fitted to the top of the case.

It also shares the same sound filters as the Hugo2, selected by the front button which changes colour accordingly, as with the front input button too.

MCRU Ultimate Linear Power Supply for Chord Qutest DAC

There is no Bluetooth connectivity which is no disadvantage since if you are buying a DAC of this quality, there is little point throwing it compressed content. During this time you can change the output gain voltage to either 1v, 2v, or 3v by pressing both top buttons together to achieve the necessary corresponding colour.

mcru linear power supply for chord qutest dac

This is to match input voltage of your preamplifier or integrated amplifier for volume level matching purposes. A little experimentation will achieve the best result here. An LED inside the case changes colour according to the sample rate frequency of music detected, which is a common feature of Chord designs.

If you place the Qutest on top of a rack, light from the LED is refracted by the glass lens onto a wall, to pleasing effect. Put this all together and the Qutest is certainly future proofed format wise. It did take a while of being on before it reached its potential, which I found with the 2Qute too.

After a day or so a less flattened more responsive and dynamic sound was on offer. Generally what this DAC does so well is bring incisiveness. When swapping between the two DACs with their individual MCRU linear power supplies an owner of the 2Qute heard the Qutest on my system and thought improved bass responsiveness was very obvious, as I did too. The other DACs mentioned seem to achieve their resolution with quite a bit of treble airiness that requires better system matching, however the Qutest is not like this.

This resolution makes the layers in the music more apparent and is clearly to be welcomed. On some music there is a touch of edginess in the treble when using the Qutest with the wallwart and my Cyrus Prebut this I put down to the Cyrus.

With the Bryston or Audio Research Pre and Qutest there is no edginess or harshness or any edgy sibilance in vocals at all. With the addition of the MCRU linear power supply with the Cyrus, good balance was achieved and in this combination the edges were smoothed off somewhat.

Against the 2Qute, the Qutest is more dynamic and immediate in its presentation, and there is a level of authority over its forebear.The design rationale behind these power supplies is below. All our power supplies are plug and play, simply attach to the DAC using the supplied micro USB connector and attach the supplied power cord, plug into the mains and enjoy.

Who was the god of gateways, and was a two faced god looking in both directions. Likewise a good voltage regulator is required to look in both directions at once. From one direction you have the mains supply, with the ever increasing noise, distortion and random variation that exists on our household mains supply.

In the other direction you have the device you are supplying power to. The load will be asking constantly varying current, and the job of the regulator will be to ignore the varying load and to supply a rock steady voltage that ignores the changing load. To ask a single regulator to perform both tasks means that it can not do either as well as it could. The first regulator is close to the mains supply, its job is to take the incoming mains and convert it into a low ish noise DC supply, and to isolate the mess that is our household power lines from what follows.

In most power supplies on the market, the output of the first stage would be directly connected to the load device, and that would certainly be an improvement over the supplies that most manufactures provide. But we can do better by adding the other face of Janus to the system.

The second regulator is supplied with a clean low noise supply, and its job is to handle the changing demands of the load. To do that, it needs to be as close to the load as possible. So we remove the second regulator from the main box, and place it close to the load, both electrically and physically, that removes it from the noise and interference of the mains supply, and allows it to spend its time looking towards the load.

Typical commercial voltage regulator chips are general purpose devices, but are not quiet enough for the task on hand, so the second regulator uses a bespoke regulator based on a low noise multi stage filtered voltage reference, a low noise error amplifier and a high current low resistance mosfet. To allow it to handle the changing load it also needs to supply current on demand, so all the remaining space in the second regulator is filled with low impedance capacitors to act as a local energy source.

Using the two stages of regulator, we achieve a noise floor equal or better than most battery supplies, and a effective source resistance of the order of 0. BlackSilver. Only logged in customers who have purchased this product may leave a review. Your Message. Email address:. Log in. Will be used in accordance with our Privacy Policy. Click to enlarge. Next product.

Supra Lo-Rad Mains Cable 1. Add to Wishlist. Product added! Browse Wishlist. The product is already in the wishlist! The Ultimate model has the following up-grades installed above our standard model.

The PSU can be supplied in silver or black and is supplied with a basic power cord to suit your country. The design thoughts behind the 2 box PSU are below. Dac Power Supplies. Fully regulated power supply Instant sound quality boost Proven by customer feedbacks New design for up to 2.

Select options. Quick View. Improved linear power supply for Apogee Mini DAC, throw the wall wart away now and fit this for immediate sound quality improvements. All MCRU linear power supplies are designed and built in the UK, many having been awarded 5 stars in the UK hi-fi press, the latest design for the new Arcam ir-dac, proven design able to substantially improve sound quality or your money back. Add to basket.Pure silver cable from small case to micro usb connector.

Furutech gold plated IEC inlet. Synergistic research SR20 internal fuse. Simply attach the supplied mains lead to the power supply and the micro usb connector from the power supply into the DAC. The unit comes with a power cord to suit your country in the box. As dedicated audiophiles ourselves we care about system synergy and realize that cables and accessories can make a vast difference to the listening pleasure from your hi-fi system and the picture quality of your AV sources.

We operate from a retail shop in Elland, West Yorkshire with dedicated listening rooms and trade counter stocked with vinyl LP's and a vast range of hi-fi accessories, personal callers are always welcome. Most of the cables we sell are hand assembled in our workshops and fully tested prior to dispatch, everything possible is done to the finished article to ensure it improves your system or your money back. MCRU much more than just cables! We Accept PayPal. We accept full responsibility if items are lost in transit and will dispatch replacements if a problem occurs.

We try to be fair and realistic with postal times and charges and do respectfully request that customers are realistic with their expectations on delivery times.

Chord Qutest : detail dredging DAC!

GBPContact us Via eBay message click here. Sign up. David Brook. Payment We Accept PayPal.It is worth noting that the new HUGO DAC is battery powered, if you are using it as a portable device then this power supply is not needed, if you are using the HUGO as a stand alone DAC in your hi-fi system this power supply can be used to keep charging the battery full time.

According to customers the HUGO sounds best using the battery but if you don't want to keep re-charging it each time it drains use this power supply instead. They make an immediate sound quality improvement.

The difference was outstanding: less sibilance, better definition, improved imaging and a big increase in the quality and quantity of the bass. It was impressive straight out of the box but ''broke in'' after about 24 hours and took another step up in quality.

I ordered it for next day delivery and it arrived on time. David e-mailed several times to check that everything had arrived and that I was with happy with the product. Highly recommended from start to finish.

mcru linear power supply for chord qutest dac

Well done David and thank you. The power supply is designed and built in the UK and ''s have been sold. This new DAC also has an earth tag fitted on the rear of the case, our PSU has an earth wire to attach to the tag to improve grounding and in turn sound quality. Supplied with a mains lead as standard, better one is available for an additional charge. The Hi-Fi Choice 5 star reviews can both be read online. As dedicated audiophiles ourselves we care about system synergy and realize that cables and accessories can make a vast difference to the listening pleasure from your hi-fi system and the picture quality of your AV sources.

We operate from a retail shop in Elland, West Yorkshire with dedicated listening rooms and trade counter stocked with vinyl LP's and a vast range of hi-fi accessories, personal callers are always welcome. Most of the cables we sell are hand assembled in our workshops and fully tested prior to dispatch, everything possible is done to the finished article to ensure it improves your system or your money back.

MCRU much more than just cables! We Accept PayPal. We accept full responsibility if items are lost in transit and will dispatch replacements if a problem occurs. We try to be fair and realistic with postal times and charges and do respectfully request that customers are realistic with their expectations on delivery times.

GBPHere are some comments from the first owner of this new power supply:- "I bought the ''cables r us'' power supply for a Chord Qute Dac to replace the standard power supply, that imo isn''t beefy enough. A significant improvement! I also have the dac connected to an Empirical Off Ramp 4. I''m very impressed with the new power supply. It added more weight to the music and gave it a fuller presentation, including expanding the soundstage!