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Linbrook Signature monitors...questions

I have a pair of new Silverline SR17 version III & a new Rogue Audio Tempest II both of which I was able to buy near or at dealer cost .I had a Creek CD MkII that I shopped quite carefully for unlike the other pieces as l recently became a semi shut in due to a neurogenerative disease.

I bought some wires & a IC very inexpensively from designer Alan Yun who seems like a real good guy as he even sent me a beautifully recorded CD that is full of the most inspirational & well recorded instrumentals & vocals you can imagine .I still have several pairs of JMLabs speakers(Cobalt 816 & Daline 3.1) that I would like to sell up here in Canada along with my newly acquired SR-17V3. The 17 are just a liitle bit too hard in the upper mids as I am very sensitive to sibilance plus at a real world 85 db efficiency & my low current tube amp I just can not get much in the way of dynamic range from these speakers .Not-with-standing a little sibilance(which most people don’t even notice) the speakers are amongst the best I have heard especially if I add a little of my top of the line Stratus series PSB modified sub to them from the pre out

.I also have some Analysis Plus Oval 12 cable & thier crystal oval IC which is the top of line in AP. The single wire arrangement Alan suggested sounded better than the biwire AP as well as thier IC. I am keeping the AP products because they sounded so good on both JML speakers & will sell the Silverline audio conductor cable along with the IC because it is obviously “voiced” for the17V3 .I need a slightly warmish smooth in the upper mids but accurate speaker(the Silverlines are dynaudio driver based & thus very musical & accurate) that is fairly efficient.

Well I think from all my research & many emails that I just described the Linbrook Signature Monitors from Tyler Acoustics. I talked to Ty, & he always seems to have some nicely broken in used ones that are still warrantied for around 2K.What a deal.I just need to sell the 17 around $1500 then one pair of JML about $750 each(they were in the $2300 range new 6 years ago)& I am into some Linbrooks. This may take me a while even though my speakers are on CAM(our Audiogon) up here but I am willing to be patient even it takes a year to complete the whole deal. I have to move slowly in that I am somewhat dependent on my adult son due to a illness I have,

I have several questions remaining about the Linbrooks however most of them to do with sonics have been answered by a never ending list of enthusiastic owners.

My first question is will these match up with my Tempest II ?.It does have a 4 ohm tap however only produces about 25 watts at 4 ohms in my favorite triode mode. Which will rival most SET systems I have heard..

I am need to get more bass which I am sure,l even at 25 watts should be there at abot 40 Hz obviating the need to use the sub except when one wants to R & R a bit..The amp is actually rated at 90 wps into 8 ohms but only produces about 60 into * ohms in regular mode .It uses 4 inexpensive KT88 output tubes that are independently biased which saves on matching tubes & allows for a little tweaking .Evidentially, these amps really respond to tube rolling, however that would come last.

I love this amp with the Creek as the two are very synergistic. If my Silverlines were just a tad less agressive in the uppermids (I had to put 500 hours on them just to get them to reasonable HF wise)& would play louder with more bass I would keep them as with a high powered SS amp & the right environment, cables,jumpers,perhapos a zodel ciciut, etc they would be fantastic.It’s just that I don't have the coin to make them sing the way they can plus I think I want something a little more mellow without losing a lot of detail & musicality..

Also ,how are the stands? I have some sand filled beefy 26 inchers however is it worth the money & the shipping (I live in Canada) to buy the stands? Are mine too high at 26"?.Does anyone have experience with the Rougue Audio tube gear or the analysis Plus cabling & the Linbrooks?

Any & all feedback would be welcomed

Bill Mc

Kelowna B.C.

Canada
audiopath49
jax2
3,031 posts
 
I haven't had the same experience with ssssssibilance on the VIII's as you describe, but then I've always used the VIII's with at least 100wpc SS power. In previous encarnations I've had I've used tubes, and do recall at least one combination that produced distracting sibilance, but I cannot recall which combination and it's probably irrelevant as Alan used a different tweeter, didn't he? The V. IV I was referring to is the SR-17.5 actually. My VIII's are late production. Don't know if any changes took place, but I doubt it.

I used concrete blocks as amp stands for a while and they worked fine. For the amps I topped them with rubber anti-fatigue matt. I bolted 2X6 boards through the middle to cover the openings on either side. For a bit more investment you could do the same with your speaker stands. One 2X6 board on either open end of the cinder blocks with a bolt going through to squeeze one to the other. A single long piece and 2-4 such bolts would hold the unit together as a unit that you could move around. Countersink the holes, paint the boards black...do whatever you like to make'em look to your liking. Add spikes or rubber, or whatever works to make them more effective for your room. Sounds like a good, economical solution to me.
audiopath49 OP
50 posts
 
I have a 90 wps Rogue Audio Tempest II KT88 based amp so it should sound good with no sibilance not withstanding the negative report by other audiophiles & several highly respected online reviewers state that this tweeter is sibilance.Dynaudio spent some huge time & dollars to make this tweeter as good as it is in other regards & Alan is a Whiz with crossovers so it makes me wonder since I use both his cables & IC & the brass jumper on the speaker couple with the best sounding CD player I could find under 5K which was the Creek CD MNKII which is very smooth in the mids & upper mids .Perhaps those KT 88 do not like that tweeter or perhaps they matched electrically the SS load better...so many variables .Even though I am considering the ultra smooth Linbrook signatures with the Seas millennium & the refined crossover would rather make my 17 V3 work because they are so incredibly musical in ever other respect…..a fine speaker from a very talented designer & all around good guy.

Bill

I will try the boards & bolts with the stands ..did you do anything to the bttoms like add a large flag stone to stabilze them?.Did you need a concrete drill to run the bolt through the concrete … or have I got the wrong idea here. One last thing the V3 has the Esotec D280 whereas the 17.5 uses the more common D260..do you know what the differnces are?
jax2
3,031 posts
 
I will try the boards & bolts with the stands ..did you do anything to the bttoms like add a large flag stone to stabilze them?.Did you need a concrete drill to run the bolt through the concrete … or have I got the wrong idea here. One last thing the V3 has the Esotec D280 whereas the 17.5 uses the more common D260..do you know what the differnces are?

No concrete drill is necessary. The boards would go on the open sides of the cinder blocks to cover those large, square holes (two in each block), thus creating a solid collum (in appearence). The bolts go from board to board, through the center of one hole, with only air in between them (they do not even touch the concrete). The whole thing is held together by tension of those bolts. They have to be large bolts. I think I used 1/2 inch or 3/4 inch bolts. I did NOT build speaker stands. I built simple amp stands from only one cinder block and two pieces of 2X6. I'm only speculating on how to do this. Your project would require two cinder blocks and two pieces of (longer) 2X6, and perhaps as many as four bolts. You could stabilize them with a wood or stone base I suppose, but you'll probably want to spike either to minimize the surface area for ground contact.

I've been listening more carefully to my SR17's with many different kinds of material since reading your post. I'm still not sensing anything like what you describe. Rogue certainly is a fine option for amplification, and given your experience and other choices I have no doubt your front end is up to the task. Have you spoke with Alan about this? If so, what did he have to say on the subject? I don't know the specific differences between the two Esotec tweeters. I do know that he made a tweeter change in the VI-VII-VIII evolution also, but I'm not sure which jump anymore. As I said, I do seem to recall one combination of one of the previous encarnations having some distracting sibilance, but I just don't remember which, and what combination it was. It's been too long, and too many changes in my systems since then. I guess I should keep some notes.

Marco
jax2
3,031 posts
 
not withstanding the negative report by other audiophiles & several highly respected online reviewers state that this tweeter is sibilance.

I've not read any reviews at all of the SR17 VIII, either real-world comments, nor reviewers. If you know of any would you point them out with a URL.

Marco
audiopath49 OP
50 posts
 
All the speakers with the esotec that I could find including posts from DIY builders from 2 years ago when Dyaudio still sold to the public vary. About half the reviews report sibilance & some almost the opposite. I know DIY builders were not often happy however Alan does not get stock drivers.-if you read the site they are built to his specifications. Now that could be anything from just a fit thing to something more functional.My speakers where one of the first built by Aaln using the new esotecs & are actually 14" high as opposed to the 13” mentioned in the specs. So who knows, perhaps mine are some earlier version the speakers both with the esotec I could find including posts from DIY biulsersfrom 2 years ago when Dyaudio still sold to the public vey abot hlf the reviwrs report sibilance & some almost the opposite .I know DIY builders were not often happy however Alan does not get stock drivers.If you read the site they are built to his specifications. Now that could be anything from just a fit thing to something more functional. Alan sent me a pair of jumpers that has a resistor in line that rolls off the HF & gets rid of the sibilance or most of it at the expense of that lovely shimmer the HF has & a lot of the openness & airyness of this driver. It does make them more listenable especially with the Analysis Plus Crystal Oval IC which is very quick & open. He also said that if I sent the speakers back( I live in Canada so read big expensive) he could fix the sibilance so perhaps there is a crossover adjustment made in a later model. If I thought he could eliminate the sibilance without rolling of the HF I would go for it & just wait for a good deal on a powerful hybrid or perhaps even the new Plinius 9200 if I could get a decent buck for my RA Tempest II tube integrated....that is how much I like the speaker in virtually every other respect. There are, however too many ifs for me consequentially I am in the process of selling the JML at fire sale values ...I always get good deals on things so I am never too far off.I will also sell the 17v3 but with the proviso that they may be a tad aggressive in the upper mids.I wish someone from my community were interested that way I am not selling somebody something they don’t want.I would be more comfortable with someone auditioning these prior to buying them.

What to do?I wish I was more certain about the nature of the issue.It is hard to believe Dynaudio would invest that much R & D & produce a sibilant tweeter that is good in every other way.It may be tricky to use since they were tying to get as much of the Esotar sound as they could for $200.Therein may lie my problem ...perhaps this driver is tricky loas wise

Everything sold, I will have enough to buy either a set of Linbrook sigs or if I am tight the Tylo Monitors.

One last thought… the final issue may be this.KT88 based tube amps are the most SS sounding of the tube genre according to the tube crowd. I had a RA Cronus which is EL 34 based before the TII which even made my JML sound sweet in the highs.Pehaps another direction might be tube rolling.You did mention one amp did make them sibilant…was that perchance a tube amp..you mentioned that you could not recall.

Anyway,lots to think about & experiment with.

Thanks for engaging me in this conversation. It is always fun & often helpful to compare notes

Bill.
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