What kind of strings give an acoustic bass the most volume?

[Din Of Win]

As a fun summer project, i'm making a "junk" bass to play acoustically with friends, especially for camping, as everyone else is a way better guityarist than i am. I'm taking this dude's idea ( ‪Black Sabbath - Ironman on home made bottle bass guitar‬‏ - YouTube ) and making my own take on it.

It SOUNDS like homeboy is just using some roundwounds... but i've never played an acoustic bass before... rounds? Flats? Nylons? I just want to get the most volume i can

[RustyAxe]

Round round phosphor bronze strings will give the most volume. Try D'Addario EPBB170, I used 'em for years.

I've changed to GHS 3060 nylon tape-wound strings for their great "upright-like" tone, but they aren't very loud.

[darkstorm]

Yes round wound phospher bronze for best volume. Rotosound makes some to, the bronze bass44's.

[ZanaZulu807]

I've been using DR Rare Phosphors on my Takamine, plenty of volume and good feel as well. Gotta try out those Rotosounds as well...

[SLaPiNFuNK]

Phosphor Bronze strings...

A bunch of different manufacturers make them, nearly all in one form or another.

D'Addario makes an EXP Coated Phosphor Bronze as well as their regular Phosphor Bronze strings.