Has anyone purchased a krell S 550 I Int amplifier

Krell says to get the most out of the 550 a 20 amp circuit will give you more current on demand .i have both a dedicated 15 amp and 20
You could tell the difference when turning up the volume,also a very good quality power cord makes a nice improvement as does the
2- synergistic 32mm 12.5 amp slow fuses. Fuses come with a money back guarantee.well worth the monies. Very good the nad not even in the same league .call Krell speak with a tech the 300 is old ,and not even close.
My brother has the Pass 150 and he Ike's mine better also.

do all of you think the 550 is in comparison to the Evolution E series amps?

Yes I bought one and the power supply went one hour into listening to it had to ship it back on my dime, Told them to keep it, Then I went out and bought a Mcintosh MAC6700 and now I m happy, MADE IN CHINA, KEEP YOUR JUNK OVER THERE.
BUY CANADIAN OR USA, Krell isn't the company it used to be ...

I took delivery of the Krell S550i 5 days ago along with Argentum Myth Analog I/C's and the AURE 8ft bi-wire speaker cables,(Studio 100v5 looking to upgrade to B&W 703D) Gutwire basic Clef power cord upgraded fr 15 to 20 amp plug(for s550i) and 2 Gutwire B/12 15 amp power cords(for FMJ BDP-300 BR player and AVR400)

As stated in a comment, I had the blue light flicker, however, it self corrected after 3-4 days burn-in.

Every time I power up the Krell I shudder, as there is a electrical pulse resulting in a thud to Base.

I am nor t getting that low base slam that Krell is famous for and am very disappointed in the Argentum cables.The dealer told me that they are superior to the Audioquest Columbia (replaced by ELEMENT-Water) I asked for a set to demo and was advised there was none available (first clue.

The midrange jumps out with detail and the tweeter sounds veiled, hopefully not due to the Krell as I invested $4,900.00 CDN.(slight scratch on LCD and face plate is not flush, 1/16" or so, with enclosure side. Dealer glossed over this point and was not willing to do anything?

At least dealer is playing fair and replacing the Argentum with the AudioQuest. 2 Water Analog I/C's and an 8ft. bi-wired Rocket 88. The Castle Rock a little out of my league right now.

When I get the new cabling, I hope to have a better idea of the sonic performance that the Krell has to offer, ideally after 100 hrs. burn in

Go into menu and put amp on high current standby. Takes away turn on noise from standby to on. Uses more juice but worth it. Sold mine like everything else. Kessler loved it in HIFI News.