Aesthetix Calypso Voltage From 110V to 240V?

Oops, sorry about that...
if you are looking for a fuller, lush, smooth sound, the Jadis pre-amp works very well with the Krells amps.
I have heard of this combo several times & it works very well.
The Calypso in my experience are on the neutral side of things. with the krell combo, you will get a lot of details, punch, dynamics. But I'm afraid it might be a bit analytical especially with the Krells.
Another preamp that you might want to consider are the VAC. These are also very good but a bit pricey. These have some of the traits of the Jadis & the neutrality of the Aestethics. They are more on the lively, forward side of things but its very pleasing. Dynamics & soundstage is very good.
Add to that list the smooth sounding Conrad Johnson pre-amps.
That's all i can think off for the moment.
Hope that helps.

Mikey,

Have you considered a transformer? Not just a regular step up transformer, which are generally cheap units that would likely degrade your power supply, but a stepup + isolation + balanced power transformer. You would get the voltage conversion, plus the power cleaning benefits of an isolation transformer, plus the even added power cleaning of balanced power...not bad for the price of less than buying a new preamp.
You could have one of these made to your spec from the likes of EquiTech or from any transformer manufacturer where you live; you just need to dig some to find a manufacturer. I'm doing this now.

Just a thought.

Horacio

Some manufacturers feel that using a step up or step down transformers (external) hampers the performance of their gears.
I would personally not use of such devices.

That is likely the case if using a cheap transformer. But how is a step up or down different than 1:1 transformer, if both are isolation units, shielded, and with balanced output? I believe some manufacturers claim EquiTech-like units are not necessary with their equipment, but I don't recall them saying such a unit will harm their performance.

BTW, trying this is cheaper than switching the preamp. If this doesn't work as expected, a change in preamp can be done anyway.

Thanks for all your replies. At this stage I have given up on the Calypso for good. I feel that if a user has to bend over backwards to accommodate use of a product by way of hunting down ways of voltage conversion by modification or use of transformers, then the product is not worth buying given the hassle involved.

Nolitan - I am not after euphonic tube warmth, just something to slightly smooth out the highs in the Krell but retain the speed, extension and detail with a touch more dimensionality and front to back imaging.