I am considering purchasing a Helikon cartridge...

Yes, it would work fine. I am running a Helikon into an ARC PH 3. If you purchase the Helikon just be prepared to give it plenty of time to break in. I was ready to sell mine until it hit 80 to 90 hours, now I love the sound. If you email me with phone number, I will tell you where to buy and get a great deal. Good luck.

Futtermann is right. I will sound intolerably bright in the beginning and it is 90 hours AT LEAST but you will be highly rewarded for your patience. Happy listening!

I am using the Helikon with ARC PH2 and LS25.
With a little patience, it will reward you with superb performance, but as Futterman indicated, you need to give it at least 100-200 hours.

For a richer tonal balance (without losing air and definition) try loading at 100 ohms.