I have done modds to my krell 700cx, it has a modern day high resolution sound now that is just uncanny compaired to what it did sound like, the amps mentioned by all of you here to me would not come close to comparison to what this krell is doing for performance now, just my opinion, for what it is worth. |
Hi Mclsound, I got a good laugh, + 1, I agree entirely with your post. |
Hi dasign, I had krell do a special job to my amp, every capacitor in the entire amp was replaced by caps that are not oem to this model krell, these caps were not available in 2005, then I also had the power supplies tweaked, I have sent this amp back to krell a few times for further mods, costly!, anyway, funny you have said something about Furutech, LOL!, I have the Furutech GTX-D Rhodium outlet on my digital now, however, I just did a vey long a/b testing with the Gold and Rhodium GTX-D outlet's for the 700cx here, agonizing actually, I must have changed wpo's in the wall between four different wpo's 25 times or more, I am not kidding about that, I am also addresseing the wall plug on the fixed ac cord, I do not know where to get an IEC done on this amp, krell does not have any more back plates for the amp, and they do not do machine work on the back plates for this amp for customers, unless you could help, I am getting the Furutech FI-50 Rhodium wall plug, also, I am putting a 30 amp single pole breaker on my amp as krell specified, krell claim's that the amp will run smoother and have a bigger better sound stage, I do have the 3/1 solid core copper 10 awg Romex I installed myself, so everything is set for the single pole 30 amp breaker, currently, I have a Tara Labs Cobalt with oyaide termination's power cord on my digital with the first GTX-D R is, also, I am putting the synerjistic research REDS fuses in the amp, one of my next moves, krell sent me a hand wrench to take the top plate off, I will have to have four of the directional fuses, large fast blow fuses, exspensive here too, $400.00 for the 4 of them, as you can see, I am still building here, the bulk of the modds have been done, but I am further tricking this amp out, any advice is welcome, thankyou for you reply, Happy new year. |
Hi Dasign, I recieved the Furutech GTX-D R early, saturday, Thought about burning it in on the refrigerator, then it dawned on me that the Krell 700cx would cook the outlet quicker, he,ha,he,,,, installed brand new out the box, I was in awe, very pleased, a complete Furutech GTX-D Rhodium set-up was incredible!, made the amp sing like it was a whole more costlier amp, I could not believe it, you see, when I auditioned the Rhodium on the 700cx with the Rhodium that is now on the digital, I had a bass suck out, my only explaination is that when I kept the 20 amp industrial wpo on the digital while I a/b the Gold and rhodium on the krell, the Rhodium's did not work with mixing outlet's, there is no other answer here, also Dasign, I did mix the Furutech GTX-D Gold and Rhodium on the same system, that my friend was the worst sound ever, talking about a train wreck, they were actually working against each other, one pulling one way, the other the other way with sound, useing all the same furutech GTX-D Rhodium's in my system is a complete hit and home run, incredible sounding, I am shocked really,this sounds so good now, I cannot imagine the out come with complete burn-in of the two, the first Rhodium that is on the digital has 300hrs on it now, lol, the new one has 3 hrs, get this, when I first started burning in the first Rhodium, it was bright for 3 hrs listening through head phones, that went away after the initial 3 hrs, so for the brand new one not to be bright, and have the best bass I ever herd out of a krell, this is incredible to me, I can just jug along and listen to the system, it's very listenable now, that is the incredible part of what I am saying., about those sr-reds, they are directional Dasign, I talked to the inventor/designer of the fuses the at the Sr factory, you have to flip the fuses one way to the other one at a time to find out which direction sounds best, you have to get all four fuses direction correct for full potential sound performance, that is what sr factory told me, have you done this?, if not, best to do it to get your potential out of the fuses, thankyou for the kind words, look forward to your reply. |
Dasign, also, I have here new in the box, the furutech GTX wall frame and cover plate for the krell, I am going to waite for full burn-in of the two Rhodium's before I install the wall frame and cover plate, I want to listen for so called improvement's of the frame and cover plate, if I hear a good discernable difference when I do the install, well then, I will buy another frame and cover plate for the digital, do you have the frame's and cover plate's?, if so, please give some feed back on these. |
Hi Dasign, The furutech wall frame's and matching cover plate is more exspensive than any Furutech wpo!, A whoping $265.00 for the set-up, now you may understand as to why I said I was going to fully burn-in the wpo's before I do the install of the frame and cover plate, I want to hear exactly what the frame and cover plate do before I make the decision to buy another set-up, Dasign, I would call SR company and get full diclosure of advise on the red's install like I did, they can explain the same as I did, but a phone call is better than email or posting, yes, I will make sure I give you full feed back on the frame and cover plate, this will be quite awhile, these wpo's take a very long time to burn-in, I have been told 500 to 700 hrs, ouch!, BTW, The GTX-D R is worth every penny that you pay for them and much more, I am telling you, synergy match for the krell's, reply when you can, cheers. |
Hi Lecram, there is some up-grades you can do your self, warning, takes 700hrs to full burn-in, however, you will be shocked at the out come, it is a must for you to get the Furutech GTX-D Rhodium outlets on your entire system, and get the furutech FI-50 Rhodium power cord plug for the Krell and plug it into the furutech GTX-D rhodium outlet, wala, magic man!!!!!!, you will hear a substantial improvement at 250 hrs out of the 700 hrs, get back to me on the cable thread, Tara Labs cables if you do this huge on the cheap up-grade, it's like a componet change, brings the best out of krell for sure, cheers. |
Hi Lecram, I took a peek at the Bryston 28B sst2 mono blocks, the noise floor is right below 115db, and the transformers for the power supply is a mere 2,000 kva in each amp, the stock form krell 700cx has two 4,000 kva transformers in the power supply that is a total of 8,000 kva, and the stock form noise floor to the 700cx is 120db, so no, I do not believe spending nearly $20,000.00 on these amp's are worth it period, really, your 700cx will out perform most amp's in the $20,000.00 class range anyway,The 700cx is class A, and the Bryston is class a/b, also, the bryston does 1,000 watts, the 700 cx will do 1,800 watts a channel to your speakers on a 2ohm load, krell did us all a favor on the original price for the 700cx, a bargain for real, they could have got alot more money for these amp's compaired to what is available today. |
Hi Joecasey, yes, I have listened to Bryston many times, most of what they make is good for the money, however, The krell 700cx is better sounding to me than the 28B, this is preferance, I like the sound of class A amplification, there are many older amp's out there that has a better sound than new amp's of today, I have seen 20 year old tube amp's sound incredible with 1940's nos tubes, it's not like amplification has done leap's and bound's with technology like digital of today has,this is my opinion, we all have different opinion's. |
Joecasey, The krell 700cx is not obsolete by no means, my amp is totally new with 2014 internal part's, it is modded by krell them self's, just the inside I put $4,000.00 into at this point, and looking to add another $400.00 inside as well, the outside tweak's are nearing $1,300.00 just in top Furutech product's, my chassis is also in new condition, mint, 10/10. |
Hi HK_fan, I enjoyed your post, my sentiment's exactly, +1, I agree with you. |
Hi Lecram, At this point, I have put $4,000.00 recently into the inside of my 700cx, very well worth every penny too, and I am going to ride off into the sunset with this amp, it's all new, with modded capacitors and tweaked power supply, I might put the SR reds fuses inside, another $400.00, I am conterplating If there is a need?, also if you put a single pole 30 amp breker on this amp, play for 17 to 20 hrs for burn-in, you will be amused at how much better a 700cx sounds and runs extremly cooler doing this, when you do this 30 amp breaker, have a furutech GTX-D Rhodium outlet on it, these wpo's take 500 to 700 hrs to break-in, however, after 165 hrs, you will enjoy the sound, the wpo opens up a bit to enjoy, and the the furutech GTX-D R does not warm up or get hot with this much current like most wpo's do,best $5.00 that the breaker cost that I ever spent in audio, I would have paid $300.00 for what $5.00 did, it's a win! |
The op's krell is 100Kohms, his pre-amp will never be an issue, does not have single ended input's because his amp is a true pure class A Balanced amp, it only has Krell cast other than Balanced. |
just saying, the Bryston whatever amp is inferrior period! |
