Help me choose a mono cartridge


Hi all.

I just got myself a Black Friday gift. The Beatles in mono box set at a very affordable price on Amazon.

I do not have a mono cartridge but would like to get one to take the full sonic advantage of this box set. I do not have very many mono records. Approx. 50 out of a collection of 2000 lp's.
Which mono cartridge would you recommend in the $500.00-$800.00 range new or used.

My analog front end consist of:

Sota Cosmos IV with Graham Phantom II
Stereo cartridges are Ortofon A90 and Dynavector XV1's
Audio Research REF3 LE with GNSC reference mods
Audio Research REF 2 Phono (not SE version) with GNSC reference mods

Any recommendation much appreciated.
Thank You.

smoffatt
I really like my Ortofon 2M Mono. I bought it at the same
time I bought my Beatles Mono Box Set when they first came
out.

You are going to LOVE the Beatles Mono Set!!! It's
wonderful.
I am also a fan of Ortofon cartridges. The 2M SE Mono was designed especially for the Beatles Mono Box set - - Here's a link to Ortofon's mono cartridge page that may be of interest to you:

http://ortofon.com/hifi/products/mono-series

I plan to replace my Lyra Helikon Mono cartridge with an Ortofon mono - just haven't decided which one to get yet, as my collection of monaural LPs includes 1950's originals up to current mono reissues from APO and others.
Is the SE model still available?
I can't seem to find it anywhere from the big online stores like Music Direct, Elusive Discs and the likes.

Thanks guys.
Smoffatt - I don't know for sure - but suspect - the SE model is still available. You may want to check with Ortofon directly to find out. Or you could contact Acoustic Sounds or Needle Doctor.

I was in Austin a few weeks ago and visited Whetsone Audio. Brian DiFrank had a 2m in stock, but I don't know if it was an SE. He's a very accommodating fellow, and you might want to contact him at: brian@whetstoneaudio.com.
The SE version can only be purchased through the Ortofon WEB Store in Denmark as stated on their website. The SE is not sold through a dealer network brick and mortar or online.
Thanks