Preamp Deal of the Century

Just replaced my Adcom GFP-750 with a used Supratek Chenin, going from a ‘giant killer’ to the ‘preamp of the century’, which is how these two units are written about. The rest of the system is a Musical Fidelity A5 player, Conrad Johnson MF2250 amp, Von Schweikert VR4-JR speakers, Acoustic Zen Satori Shotgun speaker wires, VH audio interconnects and a JPS labs digital power cord, VH Audio Flavor ? on preamp and CJ. Gadzooks what a difference in the bass, much tighter, more prominent. The soundstage opened up considerably, deeper and wider the digital glare is much reduced and I’m hearing lots of new things on familiar recordings.
My only disappointment is the amount of ‘sweetness’ in the midrange, would like some more of that. Three questions for my Supratek bretheren;
1) Any NOS tubes that’d exchange some bass response for more midrange sweetness?
2) what would be an appropriate level of turntable for this phonostage, I was thinking MMF7 or something in that strata – can I go for a less table like the MMF5 or would going up the food chain be the hot ticket?
3) the power supply tube is only an inch from the next shelf and the bottome of the shelf feels very warm to the touch. The rack is open on all sides. Cause for concern ?
Thanx much.

Thanks for the feedback lads, hard to believe that the phono will be even better than the line output, Jimi Hendrix was in my living room last night, playing the 'experience Hendrix' CD remaster of Electric Ladyland. Found myself in the kitchen between CD's muttering to myself 'damn that sounded good, damn that sounded good' - if the LP playback gets even better, scarey to think what I'll be mumbling about next.
My concern about the heat build up around the power supply tube was more about tube life, not actual fire.

Frankiealverti - Those two switches are left/right gain switches, the choices are low gain or high gain. You can adjust the pre to match your power amp with these, additionally there's a gain dial on the back for further fine tuning of the gain. With my Connie J MF2250A I run the switches in the high setting, and the dial next to the highest setting sounds best to these ears.
This is a nice feature of the Supratek, the ability to fine tune the gain for best synergy with your amp.

Thanks for the suggestion on the Sovtek KT66. This being my first tube preamp, I swore I wasn't going to get entangled in Tube rolling.
I've had the Chenin for a week and I just ordered a pair of the Sovteks. This preamp is making me unreasonable, it sounds magnificant, yet I want MORE!

Not much of a benchmark, but I had the Adcom GFP750 previously.
I've got the EH 6SN7's and the Sovtek KT66's. The Sovtek KT66 made a large improvment in the soundstaging dept.
Planning on changing the EH6SN7's for some KenRad VT231's based on Electique's generous sharing of his tube knowledge. Found a pair for $160. -gulp!

Any feedback from the recent purchasers of the Revelation umbilical ?

Just wondering if it's a worthwhile upgrade. Thanks.
So far my Chenin tweaks have been Sovtek KT-66's, Ken Rad 6SN7GT's and a Mullard 6106 rectifier along with Herbies nickel tube rings. For a $300 total investment, it's been worth every penny, sonic bliss.

Thanks for the cautionary tales, my enthusiasm for replacing the umblical is now low, given the troubles versus the marginal improvement. Guess I'll put a gold fuse in the Chenin for my latest upgrade fix.

Anybody know how to get the fuse out of the Chenin? It's supposed to be inside the iec, (on the PSupply side or preamp side?), do you have to take the base apart to get at it?

Anyone have any experience with changing the 6j6 tubes in the Chenin? I read the entire 'tube swapping' Supratek thread and no mention there.

Currently, I'm using Phillips M8081 (unknown age, got em used). I swapped in the original Sovtek 6j6 tubes and it sounded awfully shrill with glare.

Other tubes I'm using and very pleased with are Bendix 6106 regulator, Ken Rad 6sn7, Sovtek KT66. Thanks to the many who suggested these.

My foam tubes are on the interconnects where the AC cord is nearby or crossing,  my goal was to eliminate or reduce those electrical fields in and around the AC from the signal. wire/interconnects. Sorry I wasn't clearer about that, no foam tubes are on the power cords.

I'm not smart enough to fully understand Ted's video but I presumed he was referring to AC flow and that didn't apply to the signal current flow. 

My 20yo Chenin is quiet, all cords and IC;s have those foam pipe tubes cut to length and separates AC from the signal wires.

All components seperated on their own shelf, I had hum at one time and that seemed to resolve it.