Which is better for a beginner?

The D'Addario XL 45-100 is the gentler choice because the lighter gauge is easier on fingers. The Slinky is fine too but its 50-105 set feels stiffer.

Neither is coated, so both dull at a similar rate with sweat and play. Expect a few weeks to a couple of months depending on how much you play and whether you wipe strings down.

Is the Ernie Ball worth the savings?

Yes if you want a heavier set. It is $21.57 at Sweetwater versus $23.99 at Amazon for the XL as of November 7, 2026, and the gauge difference matters more than the price.

Will these fit my 4-string bass?

Both are long-scale 4-string sets for standard tuning. Check your bass scale length; short-scale or 5-string basses need different sets.

Do they sound different?

Both are nickel-plated roundwounds, so the family tone is close. The heavier Slinky set gives more low-end and attack; the lighter XL feels brighter and more flexible.

D'Addario XL Nickel Bass Strings 45-100 vs Ernie Ball Regular Slinky Bass Strings

Both are nickel-plated roundwound 4-string bass sets with hex cores, so the real difference is gauge and feel. The D'Addario XL 45-100 is a lighter set with a slightly thinner low E, easier on fingers and brighter out of the box. The Ernie Ball Regular Slinky 50-105 is a touch heavier and costs less: $21.57 at Sweetwater versus $23.99 at Amazon as of November 7, 2026. Buy the Slinky for heavier attack and lower price; buy the XL for a lighter, more flexible feel.

Today the Ernie Ball Regular Slinky Bass Strings costs $2.42 less at its best price.

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