Best new Liquid conductor technologies-Audio Magic

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01-20-11: Pani
3. Symphonic line amplifiers are extremely conservative in their ratings. They put out loads of current. My amp is a full dual mono design with a current capability of 60 amps per channel and stable to 1 ohm. It is class A/B but is biased high in class A mode. It is possible that you may not have come across this German amp because they are not popular in US.

Pani, the info written by you re. the RG1 Mk4 is not correct. The RG1 Mk4 is a 130W/ch amplifier, it is a strictly class-AB design & it is not "biased high in class-A mode" - the heatsinks of that size simply do not support that kind of thermal dissipation. Further, your amp uses 350VA-400VA transformers with something like 32-35VAC secondaries. Thus, these transformers are able to support only 12.5Amps of current. There are 3 BJTs for push & 3 for pull. So, your amp is limited in how hard a speaker load it can drive. It might very well be sufficient for your needs but it is not outputting 60Amps of current per channel! You would smoke those output transistors as you'd stray out of their SOA + the power transformers cannot support that sort of current.
Also, the RG1 Mk4 is not stable into 1-Ohm. It is certainly not cited by the manuf & I know this to be a fact! Where did you make up this info??
The RG1 Mk4 is an entry-level power amp. A very good entry level product but do not bloat its capabilities to what they are not. Thanks.
And, the Symphonic Line of power amps are reasonably well-known in the USA - more than what you would normally think.

Bombaywalla, here are the specs from the manufacturer's site that I have just quoted in my post:
http://www.symphonic-line.com/product_poweramplifier_rg1_rg4_rg7_details.html

Apart from this I have personally spoken to RG and he confirmed the same. About the high bias in class A, this was again confirmed to me by RG because I was initially worried that my amp gets really warm even when it is not being played. The higher models (RG7,RG4) are biased even higher in class A is also something I learned from my conversation with RG.

There is no reason for me to bloat anything or make up info. Now, I have not heard a Kraft but how good is an RG1 is something I have done enough research to understand (apart from believing my ears). A Plinius SA-Ref sounded like shit in front of this amp and so did an Accuphase E450. There are many other comparisons I have done in the last 2 years of my ownership. Nothing could even touch this amp. While I am not using a 1 ohm load with the amp, I am neither using easy loads. Both Dynaudio and ATC needs loads of power to sing and this one amp has tamed both of them like babies.

Coming over to specs again, my previous Plinius 8200 MK2 integrated amp was rated at 35 amps per channel max current output. It had just one 400VA transformer. The SL sounds at least 3 times more powerful and controlled, relatively speaking. I am not a techie but you know what, all of us cannot be correct, someone is definitely bloating specs. Who is it, me, you or the manufacturer ?

Pani,
Thanks for the link to the S-L specs. Looks like you certainly quoted what was written on that website. What bothers me is that his German website does not give even half of these specs:
http://www.symphonic-line.de/preise_endverstaerker.html#RG1
why are his English & German websites so out-of-whack? Of course, this is not for you to answer. I might have to call RG himself.
2ndly, we connected the RG1 Mk3 to a B&W 802D & it basically stunk! Yes, we got music out of the speaker but that is all I can say.
The RG1 Mk3 are Sanken output transistor based & the Mk4 is Toshiba transistor based. I have looked at the specs of both these transistors & the Sankens can run higher current by about 10-20%.
So, between the RG1 Mk3 & Mk4, I would expect the RG1 Mk3 to do a better job on a tough load like the B&W 802D but it did not!
I know that you quoted what is written on the English S-L website but I can tell you that the amp did not live up to those specs when put to the test in practical situation. I am very familiar with the RG1, RG4 & Kraft amps from both the hardware & sonics perspectives.
Hence, if I were you, I would take those specs with a huge grain of salt (even tho' you spoke to RG himself). I.E. do not totally count the amp out of the equation if you feel that something does not sound correct to you.

Bombaywalla, first of all please refrain from outright accusations unless you know where someone is coming from.

Coming over to the specs, I would either believe all his specs or none of his specs. I cannot imagine why he will specifically bloat the specs of one of his amps. Having said that I do find this amp very conservatively rated just by going through its performance in comparison to other similar speced amps I have heard.

Talking about driving capabilities, all I can say is I have seen quite a few weird examples where a particular amp just doesnt work with a particular speaker. A simple illustration was when an Usher BE-718 sounded lifeless on my SL while it sounded glorious on a $500 Marantz integrated. The same Marantz sounded totally out of control when it was made to handle my Contour 1.3SE which the SL tamed like a baby. As I said I am not a techie, so I will not jump into numbers, response curves etc...but I know things are not as straight forward as you are making it out to be. An Usher 718 is anyway an ill designed speaker, so anything is possible with it. However it was just to illustrate how things can go awry with amp-speaker matching.

Till date I have not been able to put a finger on the amp, I am lucky to have found something so good. Thanks to you guys who helped me in this regard.