Adcom GFP 555II Preamp Opamp replacement

This is a question for those who have upgraded an Adcom GFP 555II Preamp. I'm looking to change the opamps for some Burr Brown ones. Just wondering what you recommend? I was told the 2142 work well but there is better. Thanks for your suggestions! -Keith
There is a nice article in the Sept 2006 issue of Audio Xpress by Charles Hansen on upgrading the Adcom GFP-555.