8 acquired a pair of these highly acclaimed studio monitors, but no matter what I put into them for input, they are very low average volume at best. I would expect that they would be quite loud and be able to use for outdoor PA if needed. What might the problem be? I have a pair of them, they both are identically.
The LSR28P is a studio monitor, not a PA speaker. JBL rated it at a maximum peak SPL of 111dB @1 meter, which is fine for a studio monitor but not overpowering by any means. That's 1dB less than the 112dB maximum peak SPL of the inexpensive JBL 308P MkII studio monitor.
The 28P has dip switches on the back that allows you to adjust several properties, one being whether the speaker is seeing a fixed (pro= +4) input level or adjusted by a potentiometer next to the dip switches. I suggest you set the dip switch associated with the option (up is on and down is off for the indicated option) and use the potentiometer to set the level to your liking. I can assure you the speaker can get VERY loud, be careful with the volume control initially. I've attached the JBL LSR28p info sheet and specs, just an fyi.
Last edited by drumsalong; 07-23-2019 at 06:25 PM.