Denon DL-103 impedance load
After upgrading my Rega RB300 tonearm to Jelco SA-750E, the new configuration gave new lease on life to my trusted old DL-103.
I was experimenting with different impedance loads on my phono (iFi Micro iPhono 2). First I compared the sound between going straight into MC inputs vs. going into Denon AU-310 SUT and then into iFi Micro iPhono 2 MM inputs. The SUT didn't sound as good as straight into MC inputs. So Denon SUT is now up for sale.
Next, I experimented with impedance loads for DL-103. First listened to 100ohms, then to 250ohms, and finally to 1000ohms. The difference between 100ohms and 250ohms was subtle, and quite difficult to discern. But the moment I jumped to 1000ohms, the cart came to life! It is amazing what a difference 1000ohms make in this configuration. It's as if someone flipped the light switch on.
I find that surprising, because if memory serves most people recommend choosing 100ohms for DL-103. What's the consensus among DL-103 fans on this forum? Is optimal load dependent on particular configuration, or are there values that in general guarantee best results regardless of the tonearm/phono?