I experimented with a mass'd up (Uwe Ebony body) DL103 on a Rega arm. I ran mine through a Auditorium 23 SUT. A rich weighty midrange was its top virtue. The experiment lasted about a month as I got tired of the whitish highs I was getting on the Rega. I moved on to vintage MM's. My current favorite is an Ortofon M20FL. It builds on the midrange of the 103 with much improved highs (extended but natural) and a much better bass weight and heft. Very organic cart that really brings the music alive. Amazingly coherent. The one caveat with this cart is it needs a fair amount of capacitance to shine. I run mine at 350pF/47K. It doesn't look like your Phono pre has adjustable capacitance loading. You would need to be comfortable with a soldering iron.
Not only has this cartridge displaced the 103, its also has a Shelter 501 II, a DV 17D3 and an EMT TSD 15 sitting on a shelf.
Not only has this cartridge displaced the 103, its also has a Shelter 501 II, a DV 17D3 and an EMT TSD 15 sitting on a shelf.