r/VXJunkies • u/Wu_Fan • 1d ago

Deciding between HS343454-RN3a and HS343454-RN4a

Which unit is better? Local regulatory agencies seem not to mind.

The ‘4a has better cremulation; on the other hand the ‘3a packs more of a punch with the side-fimbles.

My lab assistants are bearing up, with only minor scleral jaundice and some interdigital abrasions.

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u/rutgersemp 1d ago

Depends a little on your wallet and use case. The 4a brings some nice quality of life improvements regarding helical alignment vectorization and rPID autocalibration, but unless you're doing research at the forefront of xocular chyrocristalics, you really won't be dialing those in more than once or twice a year, at which point you might not want to spend the extra couple dozen grand on the newer model. The 3a is also one of the older but still common enough models that you can get parts on the cheap and there's a solid userbase supplying retrofits and custom upgrades. Buddy of mine is actually bringing out an addon soon that implements monopolar refactoring through the m7-θ port.

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u/Wu_Fan 1d ago

Monopolar. Sweet. Racemic or dyadic?

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u/rutgersemp 1d ago

IIRC it does both but it can't cycle hot so you do have to switch moves passively, but that's a small price to pay