ARC LS5mkIII: Is it old sound!


I have enjoyed my LS5III for the last three years, longer than I have kept any one piece of equipment. With the advancement of technology from ARC, more specifically the LS25 and LS16, will I be getting a better sounding preamp. More specifically, is the LS5III worth hanging onto or is its time up. Thank you in advance.
jrud
To the recommendation about mods to components, I disagree. On a component like an ARC preamp, with a good reputation, you may or may not be satisfied by the new sound you get after another party modifies your component, but unless that modifier has a good, well-known reputation with that component, you will likely lose money when it is time to sell. And even with factory done upgrades, it's funny how often components are for sale soon after being upgraded. Just like changing components, upgrades are an unknown until you hear the component in your system, and often the changes made make the component no longer match with the sound of the rest of the components used.
i have afriend who had infini caps put in his ls5111.audio research didn't do the upgrade,but put together the parts to do the job. they might upgrade it for you. i haven't heard it but,several friends told me the differnce was amazing. richard grey [the richard grey power company] did the upgrade for him.
If you really want great new sound try the Ls15. It will blow the doors right of your 55555555555
Try the conrad johnson premier LS16,i had a arc ls5 mk3 for a few years,until i heard the cj LS16.arc is very good,but the cj is the way to go.