The AT123EB is a very good cartridge, but does require 50-100 hours of break in time before it starts to shine. Initially, I found it too bright for my liking. The high frequencies are very detailed but are emphasized more than the mid range and bass. After break in, it will sound more balanced and the bass will improve, but the tonality will still skew more to the high frequencies. The mid range is still lacking and the bass, while improving after break in, still isn't strong enough for me. It sounds really good for rock, good for jazz and jazz fusion, but I don't care for it for classical recordings. It just doesn't sound natural for classical recordings and isn't balanced across the tonal spectrum. For some recordings it sounds great, while others not so much. Overall, it is a very good cartridge with a lot of detail especially in the high treble, but a bit on the bright side. If you like that kind of sound, you'll love this cartridge. If you prefer a cartridge with a warmer sound, more totally balanced and listen to a lot of classical music, I'd recommend the Nagaoka. MP-110 for about the same price.

Excellent cart, it does have a break in period but after about 20 hours it really opens up. Now, its a Audio technical so it does sound bright.It however does give a lot of sharp detail and is worth it.. Really happy with service too..

At first the mids and lows were weak and the highs were very bright but now after 3 months I think it has finally broken in. The mids and low end sound louder and more balanced with the highs. The tracking though has been perfect from the start. I am only using a tracking weight of 1.1 grams and this cartridge sounds excellent. Thanks to Kyle for a great recommendation.

This needle has opened up tremendously and my records never sounded better. With the shell installation was a breeze.

trying it on three different tables.only about eight hours on it,but sounding real good. thanx guys