Hi,I don't know what arm you have but the Ge's rpx/rpj's for the price and sound are hard to beat.But they are BIG huge cartridges.The Denon 102 depending on who you ask is a mono cartridge designed to play stereo lp's or a mono cartridge for both.It was used in radio stations 1960's.Is it a true mono cartridge for mono lps?The Grado's are stereo cartridges strapped to mono.The Ortofon's are great mono cartridges and hard to beat also.There is a lot of excellent vintage cartridges ESL/Ortofon the best,Ortofon's,ShureM5,Elac's,Pickering's,Fairchild's,Neat's,Decca's,GE's etc.I found this site it's "Otono-Edison" on google 2nd listing on page hit translate.They make a beautiful line of mono cartridges hand built.If you want to use an arm dedicated for mono the Audax/Audak is a nice 12" inexpensive arm 50-75 dollars on ebay.The Lenco L70 arm also works well with vintage cartridges and is not that expensive.Also the Rek O cut arms work well.The little GE-003 mono phono amp works great with the GE cartridges.I am going to try one of the Otono-Edison cartridges instead of the Denon 102.If I could afford it the Ortofon SPU's would be my number one choice.I hope this helps you out some.KEITH
