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View Full Version : Product Reviews - MCRU - Tellurium & Filtration.



Stu @ M Developments
23-08-2012, 10:31
Hi folks,
There have been a lot of changes to my system lately as I recently got the bug again, largely thanks to reading this and the Cyrus forum, and it not only taught me a few things, but also cost me a lot of money... I will try to elaborate.

My main components are as follows:


Cyrus CD 8 SE & PSXR
Cyrus 8 XP & PSXR
Mark Grant G1000HD Interconnects
Mark Grant DSP2.5 cables powering all the above.
Takima Mains & RF Filter
Monitor Audio Silver RX-8 loudspeakers
Chord Company Rumour 2 Bi-Wired with IXOS banana Plugs
Logitech squeezebox Duet
ARCAM r-Dac DA Convertor
Mark Grant G1000HD Coax

My problem with this system, whilst I do enjoy it, is best described as a bright, quite tiring high end, and a loose low end, lacking in real bass impact. So, onto the changes over the last few couple of weeks.

Speaker Positioning.
With a prompt from you guys I brought my speakers forward another 12" and inwards another 6". This didn't immediately give improvements, but I decided to try them here without the bung fitted, as before it was quite boomy and the bungs fixed it. Result. More bass again. The system is now actually sounding quite powerful low down. Very impressed. I think the bungs were needed before due to the funny two angles right behind my speaker rear ports, but this position change has allowed me to remove them and let those 2 bass drivers do their jobs as designed. Interesting really, as Monitor suggest the precise opposite in their manual... go figure. :)


Takima mains filter.
I read with interest on here quite early on, that the Takima mains filter can strangle amplifiers, this was interesting news to me, so I removed it. What a surprise, no big change at the top end, but the bass was without a doubt significantly sharper. It may have sounded a little more detailed in the mid-range, but my listening buddy disagreed, although he agrees undoubtedly that the bottom end was now far better, with what we think is more power and clarity. Maybe those cheap mains filters struggle to supply current as quickly as an amplifier needs it?

Next up - Upgrade the SB Duet to the SB Touch.
This was done almost purely to allow me access to the 24/192 files as not only did they not play, they also crashed the duet completely, requiring a power cycle which was really annoying when you played one by accident. Now interestingly, whilst its undoubtedly a better unit anyway, to my ears it also sounds better and quite significantly so. That seems odd as I am using an off-board DAC, but me and Mr X both agree it sounds far more detailed that the Duet in the mid-range and higher frequencies, however, I did install the EDO firmware upgrade right away so maybe its the firmware changes we are hearing. Maybe one day I will change it back, but for now its a definite improvement no matter what caused it, so lets move on...

Speaker cable - perhaps my biggest surprise of all.
The system has been Bi-wired, from new, with chord company rumour 2 as advised by my supplying dealer at time of purchase / demo. I read almost everywhere nowadays that this cable sounds very bright, just what I don't want, so I dug out some old Monster cable from the loft and ran that in its place, but this time putting the bridge links in so I only used one run of cable per side. The difference was immediate, and very very obvious. The bass was tighter, the midrange has more space and soundstage and the horrible top end I had always hated was gone! I couldnt believe my ears, so after listening to a few tracks, I swopped back. But it now sounded almost the same. Not as good, and brighter certainly, but not as bad as it was.

Confused, I went for some tea and had the wife listen with me afterwards, and she agreed, the Monster certainly sounded better, but somehow the Chord didn't sound as bad as it used to either. Why? Could it be the bridges? That was all that had changed, so I reverted back to Bi-Wired Chord... crunch, the top end harshness was back! It was the fact it was BI-WIRED!! All that extra cable and money to achieve a year of nasty top end. Very annoying! So, back on the monster and enjoying it for a few days and my appetite for speaker cables has been ignited, so it was time to try something a little more serious.

On with the Tellurium Q Black + Jumpers.
This stuff has pretty good reviews, specifically from Cyrus users, and as with all the stuff from MCRU, it comes with a 30day no quibble try before you buy guarantee so I thought "What the hell" lets give it a go. Well, I am amazed, literally, as is my missus, and my technically inept and strongly snake oil hating mate. The sound stage sounds about 2ft wider, and even taller as well if that is even possible, its almost like the speakers are no longer there and the instruments seem to have a clarity to them I have never heard before, and to quote my mate when listening to one of his favorite Dire Straits tracks "Is this a different version? I am sure I have never clearly heard those triangles behind his voice before?"

I have always been a bit of a disbeliever in speaker cables and believed that as long as the cable would carry sufficient current during transients, it would do the job. And I have told people that too. Well, now I need to eat my words as I was wrong. I don't know if your reading this David, but if so, bill my card mate, these cables wont be coming back to your house anytime soon... 30 days trial appreciated but not needed. LOL :)

Finally, MCRU Linear Power Supplies:
I got round to testing out my new Linear PSU's from MCRU on the SB Touch and Arcam r-DAC. They were both supplied with Davids No:14 mains cable.

The difference was interesting, Now I must admit that I simply couldn't be bothered to fit them one at a time, so fitted them both at once and the results are quite clear. The noise floor from FLACS, specifically 24bit versions, has been lowered. Gone is the slight hiss from the low end of my Dire Straits SACD and the soundstage seems to be a little more open and clear. It all just somehow sounds much nicer. An expensive upgrade, but I do believe it is worthwhile and will be keeping these.

A few images of the system and room as it was last night.

http://img.photobucket.com/albums/0603/stu@mdevelopments/HiFi/MyPhoto-1.jpg
http://img.photobucket.com/albums/0603/stu@mdevelopments/HiFi/MyPhoto-2.jpg
http://img.photobucket.com/albums/0603/stu@mdevelopments/HiFi/MyPhoto-3.jpg
http://img.photobucket.com/albums/0603/stu@mdevelopments/HiFi/MyPhoto-9.jpg
http://img.photobucket.com/albums/0603/stu@mdevelopments/HiFi/MyPhoto-5.jpg
http://img.photobucket.com/albums/0603/stu@mdevelopments/HiFi/MyPhoto-13.jpg


So, there you have it, a lot of stuff changed over the last 2 weeks, which of course is not ideal but nothing was changed without at least 2 hours listening to very familiar music, which included Dire Straits, Mark Knopfler, Dido, Shelby Lynne, Leonard Cohen, Fleetwood Mac & Stevie Ray Vaughn and the three of us made notes on what we believed the differences were to try our best to at least avoid the placebo effect as best as possible as in all cases neither my missus or mate new what components they were listening to after the initial change.

My next upgrade is likely to be the Mark Grant Interconnects upgrade as I was immensely happy with the G1000HD's after swopping the Cyrus provided versions for them, so am keen to try the upgraded versions of this cable with better connectors. I am just chatting to him about availability by E-Mail, so hopefully can trial those next week... watch this space. :)

So what have I learnt?
Cheap mains filters may well be very bad for amplifiers (May one day try it on source only however) Bi-Wiring can be a bad thing, especially on single amplifiers, SM PSU's aren't a good thing where sound sources are concerned, Tellurium Q is incredible, even if its genetic make up is a secret and Mark Grant @ www.Mark Grant Cables (http://www.markgrantcables.co.uk), and David @ Mains cables R Us (http://www.mains-cables-r-us.co.uk) are great companies to deal with and genuinely believe in what they sell with a money where their mouth is money back guarantee. :)

brian2957
23-08-2012, 11:23
Welcome to the mad world of ' cablemania ' mate . I've been swapping cables for years now and they all made a difference , some good some bad . This has been made much easier with companies line Mark Grant and MCRU who will refund you if you don't like the cables . Fantastic service IMO. I had a similar experience with the Tacima CS929 mains block . My system sounded better when I removed it , after using it for quite a while :doh:
Never mind it's all part of the fun . I enjoyed reading your post .

YNWaN
23-08-2012, 11:28
That's a very smart looking rig you have there Stewart :).

Stu @ M Developments
24-08-2012, 19:16
Thanks guys, going to upgrade the interconnects another step next, then I am done until I look at more major upgrades, like a better DAC or some mono blocs.


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DSJR
24-08-2012, 19:46
Next step is to BUY SOME PROPER SPEAKERS!!!!!!!!

All you're doing at the moment is having fun polishing turds with wanky wires etc etc. The amps can be screamers and very VERY few speakers with metal cone bass-mid units sound any good at all, especially in comparison with acoustic instruments, the sound taking on an artifice all its own (all MA speakers I've heard in recent years are bad like this).

You want proof of what I say? Go to your local Sevenoaks shop (spit!) and hear some Spendor A series at around £1500 or so. Not necessarily to buy some, but to get a chance of hearing a less contrived sounding speaker - I'm leaving Harbeth out here, because I think you need to "grow into" them. I don't know if Epos is sold at Sevenoaks, but their current range is smooth and well balanced I think. To show what I mean about metal cone harshness and how it ruins a HiFi if not sorted, the B&W CM5's will give you the opposite I think.

The above is, in my honest opinion, FAR more important than a set of bloody Tellurium Q bi-wire links FFS..... Talk about a*se about face :lol: You really need to get the fundamentals right first.

Good vintage speakers for PSX-R equipped Cyrus 8 amp? KEF R104-2's sound lovely driven this way and aren't very expensive on the used market...

Stu @ M Developments
24-08-2012, 19:49
I gave asked about these metal cone comments before and had no reply. How do you know these are metal coned? Also, Guess what I auditioned these against, AT HOME, thanks to audio T. Who later joined sevenoaks, then went back to Audio T. Yep... Spendors.


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DSJR
24-08-2012, 19:50
Which ones?

Stu @ M Developments
24-08-2012, 19:54
Which ones?

Don't recall exactly. Similar hight, thinner and only two drivers. Definately A series, bit don't recall which and on my phone at moment so can't do any googling.


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Stu @ M Developments
24-08-2012, 19:58
set of bloody Tellurium Q bi-wire links FFS..... Talk about a*se about face :lol: You really need to get the fundamentals right first.

Are you saying that a decent set of speaker cables isn't a good purchase for any future hifi product I may buy and you think I have wasted my money on them?



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Stu @ M Developments
24-08-2012, 20:05
The topic I asked you about metal cones on but you didn't reply is this one. Also one I started. http://theartofsound.net/forum/showthread.php?t=19749


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DSJR
24-08-2012, 20:06
I'm suggesting that nothing you do will "cure" the sound of the speakers you have, the fuzzy crossover region they have, right where the ear is very sensitive, being a big issue in what you're trying to "cure" with fancy cables, mains filters etc etc. Don't work guv'nor, I've been there myself and witnessed it in my former life so many times. You get the fundamentals right and you suddenly stop caring about add-ons, since the music takes total priority. If you have a nagging problem elsewhere, no amount of bespoke or deluxe add-ons will make it better.

You want sparkle with a lovely midband and clean bass? Try some Rega RS3's! I suspect the Spendors (A5's?) may have sounded smoother and more "polite?" The S6e's I used to love would be superb in your room and with the Rumour cables I reckon and could be got in all sorts of fashionable finishes at the time.

Alex_UK
24-08-2012, 20:14
Stu - Dave can sometimes come across completely the wrong way when his enthusiasm to help gets the better of him. But he does know what he's talking about (usually!)

Dave - tact isn't one of your finer qualities! ;) I know you are only trying to help... Maybe Stu just has very different ears? I won't disagree with you on the Rega's, though...

Anyway - please cut each other some slack here, it's only hifi. :)

synsei
25-08-2012, 00:09
Phew, it was kinda like getting caught up in the Fat Sams pie fight from Bugsy Malone for a while there... :D

Tim
25-08-2012, 03:29
My problem with this system, whilst I do enjoy it, is best described as a bright, quite tiring high end, and a loose low end, lacking in real bass impact.
I'm not saying this will necessarily apply to you Stu (but I think it might?), as a previous owner of Monitor Audio GR60's (which were absolutely gorgeous to look at in their pristine piano lacquer livery) I had the exact same issues you are describing, a bright, fatiguing sound with loose bass and I couldn't listen to music for more than a few hours at a time as a consequence. I searched for years and always gave up, as I couldn't find the sound I wanted. The problem was I was basing this change around my front end and interconnects, I didn't really consider the speakers as I thought the problem lay at the front and I wanted to keep my 'oh so pretty' MA's as I really loved how they looked. I joined AoS primarily for advice about a DAC, but starting asking other questions too. After absorbing a lot of the information here, somebody suggested I had it all wrong and I would be chasing my tail for ever, unless I listened to some different speakers....... once I had swallowed my pride, I had a bit of an epiphany - I was wrong and these helpful boffins on AoS were right. My endless days of swapping wires, moving things around, buying granite blocks and changing mains leads were over - phew! I pretty much went through what you are describing now but it was all to no avail.

My entire system has now been changed and it cost me less than half my previous system - I now listen to music for days on end and I mean days on end, morn till night, with nothing but honey & silk flowing into my ears. I totally love my sound now and I have never ever been that satisfied before, not even close. I think you have a great front end Ivor, but in my opinion your weak link, just like mine was, is the Monitor Audios.

My advice based on your symptoms would be to go and listen to some different speakers and 'consider' changing the MA's, the wife probably won't like it, but I think your ears would :)

(nice room by the way ;))

julesd68
25-08-2012, 09:21
Maybe Stu just has very different ears?

Like Mister Spock or something ?? :eyebrows:

Alex_UK
25-08-2012, 10:52
Or perhaps he's an Elf!? ;)

Stu @ M Developments
27-08-2012, 16:07
I gave asked about these metal cone comments before and had no reply. How do you know these are metal coned?

Can anyone else help with this?

Stu @ M Developments
27-08-2012, 16:21
I'm not saying this will necessarily apply to you Stu (but I think it might?), as a previous owner of Monitor Audio GR60's (which were absolutely gorgeous to look at in their pristine piano lacquer livery) I had the exact same issues you are describing, a bright, fatiguing sound with loose bass and I couldn't listen to music for more than a few hours at a time as a consequence. I searched for years and always gave up, as I couldn't find the sound I wanted. The problem was I was basing this change around my front end and interconnects, I didn't really consider the speakers as I thought the problem lay at the front and I wanted to keep my 'oh so pretty' MA's as I really loved how they looked. I joined AoS primarily for advice about a DAC, but starting asking other questions too. After absorbing a lot of the information here, somebody suggested I had it all wrong and I would be chasing my tail for ever, unless I listened to some different speakers....... once I had swallowed my pride, I had a bit of an epiphany - I was wrong and these helpful boffins on AoS were right. My endless days of swapping wires, moving things around, buying granite blocks and changing mains leads were over - phew! I pretty much went through what you are describing now but it was all to no avail.

My entire system has now been changed and it cost me less than half my previous system - I now listen to music for days on end and I mean days on end, morn till night, with nothing but honey & silk flowing into my ears. I totally love my sound now and I have never ever been that satisfied before, not even close. I think you have a great front end Ivor, but in my opinion your weak link, just like mine was, is the Monitor Audios.

My advice based on your symptoms would be to go and listen to some different speakers and 'consider' changing the MA's, the wife probably won't like it, but I think your ears would :)

(nice room by the way ;))

Thanks Tim, have replied to you elsewhere about my Focals loan, and I really appreciate you time and advice. :)

P.S:
My wife hated music, My HiFi, My cars, My 80-95hr week and I guess me as well, full stop.
I divorced her. I live alone in happiness now. :)

Ali Tait
27-08-2012, 16:55
Yep, my ex was pretty much the same. Found a good un now though, she loves my system, and doesn't complain about a large pair of OB's and an even larger pair of statics in the living room, as well as all the kit of course!

http://img853.imageshack.us/img853/156/pic1oo.jpg (http://imageshack.us/photo/my-images/853/pic1oo.jpg/)

Stu @ M Developments
27-08-2012, 17:10
Women are such horrible creatures at times aren't they? Lol