hissing sibilants

Jjrenman,
The gain value surely cannot be dictated by the internal impedance of the cartridge. From what I understand it is dictated by the cartridge's output voltage. You want to use the lowest value that provides sufficient gain for the signal. Tools such as the KAB calculator are useful to approximate what that value is. My own personal experience with both MM and MC cartridges and several different phono, line and power amplifiers confirms that it is critical to use correct gain to match the output voltage of the cartridge for the cartridge to perform its best. Too little gain and the signal will be too low to provide enough volume, while too much gain (at the phono level) will result in a sound that is shrill and strident, and it becomes all but impossible to adjust the volume to get the sound right.

My concern about using this particular phono preamp with a Delos seems to be confirmed by this review that's reprinted on the preamp's page:

"The only test result that might be significant is the very high (in context) current it passes through a cartridge's windings, up to 0,2mA. It certainly won't do any damage, but with some cartridges might affect the sound. That apart, this is an extremely fine piece of kit and is strongly Recommended."

I thought the current went from the cartridge to the phono stage where it gets amplified, rather than the other way around, which the above-quoted text would suggest. It's possible that it was incorrectly translated into English, and it simply means that the preamp uses a very high voltage to amplify the signal, which might not be ideal for medium or high output MC cartridges such as the Delos.

I thank you all.
I don't have problems with CDs and I have it with many records, that's why blame it on my analog setup -I'd better say on how I have set it.
These days I'll try one or two different phono stages (North Star Phonostage and Whest 3.0RDT), then we'll see -no: hear- if the ECP-1 is guilty.
If not, I'll try and re-set VTA.
thanks again

Actusreus,
IME (as well as the MC industry) finding the optimum load is by far the most important for achieving best sound performance of a MC. You yourself have found this out when you optomized your Delos with 200 ohms.. BTW there are strong advocates for 40 to 1 SUT not because they needed that amount of amplication but they get the best sound when the standard 47k input impedence of the phono pre is "reflected" down to about 29 ohms when presented to the cartridge. I myself have changed out the input resistor on my phono input to 3k to give my cartridge a 30 ohm load (as reflected through my SUT) which was the best overall sound from my Dyna.

As far as the .2ma of current that they are describing it's from the base of the transistors that are being used in the first stage of amplification. If you want to dive into it you can find threads on DIY forums as to which kinds of transistors, in what types of circuit topologies, that will present the lowest amount of current to the preceding stage, in this case the coils of the cartridge.