Dual Golden 1 Turntable has low volume even with phone stage??

I just got a Dual Golden 1 turntable as a second turntable and hooked it up to a phono stage and into the system. Very low volume when turned almost all the way up. Tried it with another phone stage and same thing. Took irt over to a friend's house and the same thing. I called the guy I got it from and he said he had no problem with it. I am baffled. It does play both out of both speakers but not at any volume. Tried a new stylus and the same thing. Has an Ortofon magnetic cartridge. Hooked it to magnetic inputs on phono stage, still just above listening level at nearly full volume.

Any ideas?

Thanks,