My Heresy IV at 168 hours w/ a change of tubes.


Wow, what speakers.

We've all seen the gushing reviews from Steve Huff and others on youtube and the forums. It seems today everything is given 5 A+'s in the reviewisphere these days even though  90% of what is reviewed s not even adaquit. Reading and viewing these over the top reviews about The Heresy IV's, I was skeptical, but the ridiculous replies rebuking these reviews by people that obviously had neither experience nor interest in the Heresy IV's made me say, hmmmmmm.

After two years in consideration I pulled the trigger. I purchased the Heresey IV'sfrom HiFi Heaven in Greenbay for $2,500 with free one day shipping. I turn my system on and let it running for 5 days straight. The speakers sounded quite nice but it was missing a soul. I was disappointed and thinking of the possibility of returning them, then I read the review on Stereonet. The reviewer described what I was hearing and had a solution. He switched from a 200 watt amp which I believe ran KT88"s to an e34 amp. He described the relationship between the amp and the speakers as being a meeting of soulmates and spoiler, this is what happened to me.

 

I am a Quicksilver guy. Ive been sucking on the Quicksilver tit since something like 1995 or so.....I think. For the last 10 years Ive been running MidMono's with......KT88's even though they were built with e34's in mind. I needed the juice for the speakers Ive been using for years. These speakers were Boston Acoustic Lynnfield Project VR950's. The 950's are either ignored or pooh poohed by many, but they are some very detailed lively speakers. During my years with the Bostons I had several extended demo sessions with other much more expensive speakers and although they were better certainly, they were not change my life better, surely not worth the high costs associated with the upgrades, so I kept the Bostons. The Bostons can be quite deep soundstage and sideways they can through percussion into the next room. The I believe the caps started to go bad and the voices within the soundstage started to wander; this is why I started looking for replacements.

So, Im using MidMonos, a Quicksilver 12AT7 preamp, a PSAudio DirectStream Sr., and 2012 Mac Mini as a NaAS and a HSU Sub used very sparingly. Again with the 88"s the Heresy IV's sounded, not bad but sterile and many pieces sounded like the had been taken apart and rearranged in wonky fashion, very odd indeed. The bass was generally not mushy, but undecided. The midrange could easily get cluttered. There was nothing to celebrate and started to miss the Bostons.

Pieces I loved and knew intimately were disassembled. Things like Peo Alfonsi's Amada or Alma, or Pietropaoli's Le Notte, Likewise, etc. Virtually everything in DSD. Bass-line segments would all of a sudden be pushed into the background in mid phrase and a guitar would jump out front a third louder that it should have been. I tried to tame this with my sub and speaker position to no affect. It was very weird. Even if other pieces sounded fine, they still lacked soul. The kind of soul that makes you smile uncontrollably. The sound was, wide yes, but not enveloping, it was like looking at a photograph taped to the wall. A nice pho, but not reality. The depth was only to the wall....all around disappointing. It reminded me of what almost every positive reviewer had said, "the speak is Fun." and it was, but I thought, I don't want Fun, I want it to sound like it's the most important thing in my life.

I was in a quandary. I thought maybe it is just break-in. I sold a beloved VPI Classic to fund my Direct Stream Sr. which sounded like absolute crap until after like 800 hours running 24hours a day, maybe 1,000 hours, I can't remember and then all of a sudden KA....BOOOOOM !!! Magic. The final software update, I believe is Windom is unbelievably great. I think they started with this software and purposely lessened the initial dozen or so versions so they could upgrade the DS Sr. in increments for several years, but I am a cynic. Anyway,  I figured the problem with the Heresy's was a burn-in issue so I would wait, but then again if I waited for the full 500 hours I would miss my return deadline........ 

Then I read the review by Rafael Todes

https://www.stereonet.com/reviews/klipsch-heresy-iv-floorstanding-loudspeaker-review 

I'm sure I'd read it before, maybe many times, but what he said didn't gel with me until I experienced his issues myself.

"I also found that changing my power amplifiers lessened the effect. I substituted another valve amplifier in my collection – a restored Marantz 8B running EL34s, and dating from 1962. This was one of the finest amplifiers of this period and would have been a regular partner for Klipsch loudspeakers back in the day. What a combination! Those sweet little EL34 power valves brought more air to the proceedings than the KT88s of the VAC, and I heard an energy and life to the recording that jumped right out at me. I’ve never heard the Marantz sound so good; it was as if it had found its life partner. The rhythmic tension was excellent, as it delivered fast and accurate transients with toe-tapping drive."

 

So I looked for my original Quicksilver e34's which I hadn't seen in a decade and most likely never will. I couldn't find them so I ordered a set of e34L's from Tube Depot three days ago. They came today. I figured another 24 hours to burn these in then I would start making the decision to return the Heresy's or not.

I knew they were arriving today so I turned the system off allowing the 88's to  cool. The tubes came and I plugged them in and started Alma by Alfonsi and.......

B.O.O.M. !!!! Immediately... Glorious beautiful gorgeous enveloping soulful sound covered me and every cubic micron of my room exploded in perfect sound. It was like getting punched in the face with joy and contentment. It was a revelation. Now I know what Steve Huff and Tode were on about.

 

Apparently it's not all recordings LOL, as Im writing this, Amada ended and Audirvana cued a FLAC of Al Demeola by random and it sounded like crap, so be warned. You can't have any weak links in the system. Keep in mind Amada was my reference.

 

What's all this mean?

It means these speakers are exactly what Steve Huff said they are. If you try them out and they don't change your life, there is something wrong with your system, not the speakers. If you're using SS, use a low watt tube rig and if you can, DSD.

 

T

128x128tonydennison

@decooney 

Ahhhhh, I get it. OK

 

Tell me about these 6SN7 preamps or are you saying the QS can be converted? That would be scary but I am interested. The problem would be not being able to switch back easily. 

As for changing the caps only, what characteristic changes occur with different caps?

 

Thank you

 

T

 

@roxy54 

And what specific upgrades did have done and who did it and how long did it take? Have you also heard a 6SN7 preamp and is that even nicer?

Are you or others using QS monoblocks and what are everybody's source materical appliances?

I'm thinking it my be best to through in a 6SN7 preamp and compare rather than convert a QS LP and always wonder " is it better? was it a mistake? etc"

Any suggestions from anyone on a 6SN7 preamp? I'd like to stay American and of course as cheaply as is practicable.

 

Thank you,

T

@tonydennison oh, "for what it’s worth". And you see YMMY "your mileage may may vary" :) . You’ll see these types of disclaimer escape phrases because many of us can hear things differently too. Different rooms, cables, speakers, all matters.

As for 6SN7 Linestages and Preamps, it’s worth doing some self-research, starting with search, i.e. on Agon, searching for "6SN7 Linestage" subject line only; you will find many threads to look over in the past decade+. Many of us have our own preferences to these 6SN7 preamps too...

Many manufacturers like QS went to smaller 12aU7 and 12AT7 tube based preamps 5-10 years ago due to scarcity of 6SN7 tubes, THEN more N7 and L7 new production tubes started showing back up past 3-5 years. So, some nice options here again with new production too. An upgraded preamp with 12ax7, 12au7, 12at7 can sound really good too, so don’t count that out if you want to get yours upgraded. This can be a really nice stepping stone too, or "good enough" :)

https://forum.audiogon.com/search/index?utf8=✓&query=6sn7+linestage

 

 

 

 

@decooney 

 

"the average person is absolutely good with any of these units in stock form. For the other 10% of us who want more, it can be achieved within reason, and for fairly low cost too."

 

Yeah, I like the quest as well, but Im just worried about F' - ing something up. I have too much experience with that :-) . 

If I had a tech-friend in the neighborhood that could make changes and put things back as they were just in case within a short time, I would be all over it. As is known, a lot of this is subjective. I am know regretting selling previous GS pre's. It would be a no brainer if I had a QS backup.

OK, back to me F-ing things up....

Cap upgrade, what am I looking for in caps and what changes can I expect after I switch them out, just generally, ie what are the benefits of upgraded caps?

Other internal upgrades, what are they and how are they done?

Or are the 6SN7 preamps far superior negating the upgrading of the QS.

The 6SN7 preamp's, all I see on line seem to be kits, are they a rarity? 

 

T