Thiel Owners


Guys-

I just scored a sweet pair of CS 2.4SE loudspeakers. Anyone else currently or previously owned this model?
Owners of the CS 2.4 or CS 2.7 are free to chime in as well. Thiel are excellent w/ both tubed or solid-state gear!

Keep me posted & Happy Listening!
jafant
Alright then, swapping in Mills MRA12s  is on my list. I might  need some technical pointers, but will post results when able. Give me a minute...
@beetlemania how much would a used v-1 cost? I swims if it drive 7.2’s it’ll drive 3.6’s just fine. Right? 32 fets per channel? Sounds amazing I want one.
tomthiel

Thank You for another year of hard work researching and developing (R&D) our beloved loudspeakers. Keep up the outstanding effort.

Happy Listening!
beetlemania

Good to see you, as always. I really must hear your upgraded 2.4s sometime for a sonic comparison. In the Spring, I will send my AX-5 to AYRE for the full Twenty Series upgrade.
I believe the previous AX-5/20 was a 2017 model. It is going to be interesting to compare mine against the previous Amp auditioned.

Happy Listening!
tmsrdg

Thank You for reporting your experience with Rob Gillum at CSS. 
He knows Thiel Audio loudspeakers.

Happy Listening!
I have bragged about those yellow caps as state of the art, and they were in their day
Oh, no! Time to remove the radiator again? Lol

 I do occasionally wonder about different bypass caps on the CSA coax feeds. We went with Multicaps but, in hindsight, I’m curious to hear something like the Audyn True Copper Max or Jupiter. Likewise, wonder how the Path Audio resistors better the Mills MRAs, if at all. Then again, that was a lot of work to make one change in one channel, wait for it to burn in, and carefully compare in mono. 
Maybe I’ll just listen to music and be happy rather than compulsive?
:)

With the 3.7, I wonder if Rob Gillum’s experience is related to those massive ELs which cannot practically be upgraded due to size and cost.  But, yeah, the Mills seems like low hanging fruit that is likely to make a nice sonic upgrade and for not much money.
Ayre power amps are also a great match with Thiel
100
My AX-5 Twenty and CS2.4s are singing. Years ago I ran a pair of CS1.6 with the AX-7. Also nice other than I yearned for more bass. And my only experience with the CS7.2 was paired with, I think, the V-1. That system was just short of the very best I’ve heard.
Tmsrdg - I can add a general perspective comment. The level and extent of exploration and custom development that went into passive components at Thiel was considerable. Many folks may consider Thiel's choices as strictly budget driven, but scores of hours were spent on each product to optimize and match the components both for sound and for cost balance. The biggest exception might be the resistors. Swapping in Mills MRA12s costs very little and has produced noticeable improvement in the several builds we've done recently. I have no direct experience with the 3.7, I'm merely extrapolating from general experience. 
Anyone used Vincent audio sp-331? Says it can handle 2 ohms no problems. 1,000 watt ring core transformer 300 at 4 ohms. Buddy is using one for his legacy audio signature 3’s.
I had a discussion with Rob G. several weeks ago about replacing caps in my 3.7s. He basically said don't bother, it won't be worth the effort. He sent me a couple pictures of designs he has tried with the 3.7 and maintained the sonic improvement was minimal compared to cost. If anyone else here has modded the 3.7, it would be nice to chime in at this point!
Myself and others have applied an opposite or different method to the mounting of crossovers internal to the cabinet.. We do secure the individual components to the board using rope caulk or other soft adhesives as well as zip ties. Instead of slowing down and storing some of the vibration inside we direct couple the slowed and misdirected energy to the floor or wall of the cabinet. I use small brass Audiopoints and the brass coupling discs. The board rests on these devices and the board can be secured with brass screws to the cabinet base. We have an extended method that allows for resonance tuning from outside the cabinet. This method while more invasive the improvement can clearly be heard by using a hex tool..To provide a continuum of thoughts on this mechanical conduit we set the speakers on our Audiopoints or our Sistrum Platforms and speaker stands. We use the same materials and geometry to maintain the capture and redirect direct the  exit speed of resonance to the largest mechanical ground plane..the floor. There is also a similar method that can be applied to bass and midrange drivers which also allows for resonance tuning outside the box. Tom


Thoft - I've been messing with the 3.6s for the past few months. I consider their stock components highly optimized and am therefore investigating other upgrades in priority over component upgrades. That said, there are ongoing DIY upgrades happening behind the curtain on this forum - perhaps someone might comment.
I can recommend the fruits of our research, which lands on replacing series feed caps with ClarityCap CSAs in the highest voltage you can fit or afford. Swap resistors to Mills MRA-12s, especially in feed stations.

As background, I have bragged about those yellow caps as state of the art, and they were in their day - tin foil on styrene film, they measure and sound quite good. However CC's CSA invention replaces the normal zinc spluttered end caps with a copper-containing matrix, and updates the geometry to wider and shorter, for a significant performance upgrade. BTW, I've compared the CSAs and CMRs to many of the sexy caps out there, and I believe the CCs are as good as it gets in terms of truth and accuracy, especially at their affordable prices.

Another nearly free upgrade you can DIY is to re-mount the crossover panels on rubber standoffs to reduce vibration in the crossovers.


Jimi - I recommend restoring the CS1.2s as a very fine little speaker. I use the CS1.2 drivers in an 02 cabinet to compare components,wire and cabinet treatments. Rob at Coherent Source Service has parts. I think you'll be glad you did.
Is there a recap kit available for the 3.6? Also my thiels aren’t bright like many keep saying the 3.6’s are. Very smooth. Yes the tweeter works I tested that with my hearing aids. Anyways my amp search may be pushed back yet again due to my car having exposed metal on the rocker panel that I only noticed after I took it to a car wash. (Dried Salt spray and bare metal/primer hide each other well). So more time to look for amps. Still trying to find out what the adcom has. 60+ amperes and more than 300 watts is the recommendation right? I wish there weren’t so many possibilities. More than a few people on Facebook are recommending class d amps. Will those have the power to drive thiels current wise and headroom wise? Trying to stick to class a/b personally 
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jimihandtrix

Excellent. Looks like we have another DIY member here.
Keep me posted on developments on the CS 1.2 speakers.

Happy Listening!
Hey Jafant, good to "be back"! ;-)

Aside from the Thiel speakers which I hope will one day be restored to their full glory, I have an old Kenwood amp from my father, which must be about as old as the Thiels. At some point I'd like to get more into DIY electronics and try my luck at making my own amplifier using some valve tubes, but I think I've still got a long way to go until then! During the lockdown I've actually gotten into building my own (mobile) 12v sound system - geared more towards bass-heavy music i.e. dub, roots, jungle - which has been quite a nice experience and learning curve. I began with a 12v AGM battery and 1200w Pioneer amp, and then built a "Cubo 15" and some custom enclosures for 2x 8" mids and 2x 1" tweeters in a mono stack. I've since crafted some separate (and nicer looking) horns for the tweeters and some "mini-scoops" for the mids - now stereo - for home and studio use, until I can take the system for a ride in warmer weather.
jimihandtrix

Good to see you again. Stay tuned until one of our DIY guys chimes in to address your query. What other gear rounds out your system? 

Happy Listening!
Hey all, hope you're well as can be expected! I posted in September 2019 about a pair of CS 1.2's I received, with one of the tweeters not working at all. Well it took me this long to get around to doing something about it, but I finally received a (new) replacement diaphragm / voice coil from SEAS, but I still can't get it to work. I already switched the tweeters back and forth when I first got them and the functioning one works on both speakers, so I think it's safe to assume the issue must be something with that defective tweeter, correct? I've just measured the impedance on both tweeters (removed from the circuit, with the magnets detached. The functioning one reads between 4 and 5 ohm, and the new one doesn't register anything. When using the multimeter's current detection function (or whatever it's called; the one which emits a beep-tone when a circuit is closed), I don't get any signal on the new diaphragm, whereas I do when I measure on the positive and negative terminals of the old (functioning) one. Does this probably mean the new diaphragm (which I spent months waiting for) is defective? I can't detect any breaks in the wires leading to the voice coil, but also don't get any signal-beeps when I hold the multimeter to these wires. What do y'all think?
esprits4s

Good to see you again. Thank You for posting your Amps w/ the CS5 and CS 7.2 loudspeakers. What other gear rounds out each system?

Happy Listening!
The highest I’ve gotten in the current usage of volts section of the conditioner is 3.2
I’m assuming if it’s doing cs5 just fine it will do the cs3.6 at louder volumes.
“Stable” only means that the amp won’t go into oscillation. It doesn’t suggest how much power, what distortion levels or how it will sound into that load. 
Just checked the LSA was purchased in Dec. of 2013..haven't heard any negative feedback from the client. Tom
I sold a friend an LSA Signature powering a set of CS 5's in a smallish room. That was 5 yrs ago.
The bigger upgrade in sound quality was the Sistrum rack he purchased and I set up.  Tom 
Anyone have any experience with LSA signature integrated amp? Looks like a beast. 300 at 4 and stable into two. Kinda sticking with mark levinson but doesn’t keep me from looking around for fun.
The GFA 5802 is a highly regarded Adcom amp. I owned one at one point (prior to my Thiels though), and it drove a pair of Aerial Acoustic 10T’s nicely. However, I understood that it would be very difficult to repair if any issues arose with the output hexfets (NLA?). I ended up selling mine partially because of this concern, but I don't know how valid of a concern it was. 

FWIW, I am running Levinson 436’s (CS5) and Aragon Palladiums (CS7.2) currently. I have thought about buying one of the big Krells to compare, but haven’t pulled the trigger.
theaudiotweak

Tom- Thank You for the follow up to my initial query.

Happy Listening!
The dac is at full volume controlling the actual volume with my phone via Bluetooth. Bass is thunderous no problems thus far
The GFA 5802 and as I said the Pre and CD were much better than any other Adcom pieces.The 3 I listed are much more refined and musical..
I never had any contact with the 5800..The 5802 has no fans and there is one for sale on Ebay now.

Tom
Hello Jafant,

On 1-27 you asked about products from Starsound.

With a host of new people, the Company name will change along with the current product roster.


The new company is scheduled to go online shortly and will feature Audio Points™ that were introduced thirty-two years ago, Rhythm Platforms™ and Energy Rooms™.


Two new lines of equipment racking systems will be featured titled Rhythm Junior Platforms - a more affordable version of the multiple Award-Winning Rhythm Platforms and Timbre Platforms™ which is our initial venture into the world of wood shelving now infused with Live-Vibe Technology™.


We will be back in the compact monitor stand business and are currently prototyping new products based on the Energy Room mechanical grounding methodologies designed to compete with the current oversized acoustic panels, pillows and bass trap products.


In the musical instrument industry, we remain active and plan to expand the cello end pins while prototyping mechanical grounding products for the violin of which I am nearing completion. Tom

Audiogon member Dale Humphrey has his Virtual System on display on these pages. Dale is located outside of Madison and if you would like to hear the Energy Room which is hidden behind the drywall.. drop him a PM..Dale is a member of our corporate group. https://systems.audiogon.com/systems/8168

As for amps most of the Krell amps that are class A/B will operate fine with a 15 amp circuit. The best Adcom amp is the GFA 5802 and Nelson Pass did have design input on this piece as he also had input on GFP 750 and the GCD 750..these pieces stand up very well even today.

The Ayre power amps are also a great match with Thiel. Never a dealer for Ayre.

I worked for 2 dealers in the past and we sold Krell, Adcom and Forte as well as Thiel.

The Forte seemed gassed easily.. The big Krells and that Adcom 5802 were excellent. Tom


All

a sweet pair of CS 2.4SE over on U.S. AudioMart. Located in Florida.

Happy Listening!
bonedog

Thank You for the post. Hopefully, those speakers will find the next good home.

Happy Listening!
FYI there is a smorgasbord of vintage thiels for sale on the SF Bay Area Craigslist.  
 3.6’s for $850 that look good
2) 2.2’s one for $250 w/ the probable blown woofer
    one for $395
1 or 2  3.5s in questionable shape
3 or more!  .5s
 and a 1.5

I was thinking of grabbing that $250 2.2 but don’t need another project or pair when I really think about it.


tomthiel

2nd Note- I remember Adcom making a Limited Edition 585 mono block Amp as well. I do not recall if Nelson had his hand in the designs/production ?

Happy Listening!
tomthiel

Thank You for more Thiel Audio history. I hope that you are well and enjoying upgrade projects via Hot Rod Garage. It would be interesting in hearing a comparison between Nelson's original GFA 555 vs the current replacement model. Back then, Adcom made a 565 mono block Amp as well.

Happy Listening!
catalysis

Thank You for the update. Good to read the Townshend Super Tweeter is a sonic match for 3.5 loudspeakers.

Happy Listening!
Thing is krell said none of their amps are designed for 15 amp circuit that I would have to upgrade to a 20 amp circuit. And if I’m going to do that I would want to rewire which I have no permission to do at my current residence.
I can contribute a bit of Thiel historical perspective. Among all the good, great and worthy amps out there, Thiel gravitated toward a few brands, who also gravitated toward Thiel speakers for mutual product development. This thought is up to 1995 when I lost touch. Those amps of choice included Krell, Mark Levinson, Bryston and Conrad Johnson (and early Classe & Threshold). Part of what manufacturers need is political affinity: sharing dealers, design philosophy, potential mutual customers, and so forth. But they also need performance-compatible products that make each other sing. There are undoubtedly other good matches out there, I'm just sharing where Thiel as a company, that is Jim Thiel as a designer, felt most at home.
^The wording on the amp is a bit ambiguous. The wording suggests that the amp not be tested into 2 Ohm loads. Musical loads might suggest momentary dips into 2 Ohms. The 3.6's practically live in that region. 
 Get an appropriate Krell.

To re-iterate a tiny bit of anecdotal amp data on Thiels.

I’m still having fun going back and forth between a loaned Bryston 4B3 and my CJ monoblock tube amps (140W side) on my Thiel 2.7s.

Anyone who thinks Thiels need gobs of SS power should hear this set up. Even compared to the Bryston, 140w of tubes sounds absolutely balls-to-the-wall energetic, punchy and dynamic.

The Bryston provides a tiny bit more grip on the sound, but the bass is by no means "loose" with the CJ and it sounds at least as punchy, probably even more so. With the CJ the sound seems more "live" IMO.

220 watts at 4 ohms litterally says approved for 2 ohm loads continuous on the amp. Even has speaker protection.