audiopile wrote:Got curious about the DCR balance of my carts last week - so measured what I had mounted up on headshells . My later SC35C (presumably Mexican?): L-.906kOhms, R-.974kOhm. Before this gets blamed on Mexican production - the hands down winner of anything I measured was the definitely Mexican made M97xE : L-1.365kOhm , R-1.366 kOhm ( asked a buddy to measure his 97xE :1.365/1.375kOhms). As long as you use a DVOM - this is a pretty safe measurement to make on any cartridge and is at least interesting ?
On the premise that coil resistance depends directly on length of wire, and that length of wire depends directly on number of turns, and that cartridge output (and inductance) depends directly on number of turns, 906R/974R equates to about a 0.6dB channel imbalance. Which seems not the end of the world, perhaps even swamped by other contributions.
But basis for such premises isn't necessarily safe. For example if the coils are wound randomly, length of wire per turn might vary. Coil wire from different batches might vary. Such things might compensate, could go either way.
So personally, I wouldn't read too much into coil dc resistance. A close match might be just luck, and/or it might well not matter. Inductance meaurements are probably a better indicator, but handheld dmms quite possibly don't measure anything accurate or useful about cartridge inductance, because of their method.
Other factors ? Keep looking !