L1 Model II

Let's talk about the L1® Portable Line Array Systems

Using proprietary Bose® technology, L1 systems combine  PA and monitors into a single, highly portable unit. The  loudspeaker can be positioned behind or to the side —and you hear what the audience hears.

Highly portable PA and monitor combined for solo performers, DJs and general-purpose use. Fixed vertical control with 180° horizontal coverage Reduced vulnerability to feedback.

Three systems to choose from (Compact, Model 1S, Model II)
Two passive bass module options (B1 or B2)
Consistent coverage and tonal balance, portability and easy setup.

Model II fan

I received my model II (no T1 yet) last week and have been using it with a small mixer. I was wondering how frequently the fan in the power stand is supposed to turn on. The fan on my unit is turning on pretty much every time i run a strong signal into the system(aka strumming a guitar chord) Just a single chord sets the fan off. Is this supposed to happen? It's not a problem when im playing at higher volumes but at low volumes i can hear the fan noise. I know you're not supposed to cover it up but is there any way to make it less of an issue?
Original Post

Your unit is functioning properly - no problem.

The fan in the PS2 comes on when the input signal level goes over a certain limit, regardless of what the internal temperature of the unit is. That way, the unit never gets too hot to where a fan needs to be on constantly.

Whatever you do, please don't cover up the fan port.

Are you sitting quite close to the unit while you are playing?

Originally posted by coricidin12:
...i can easily hear the fan if i stop playing...

This is going to sound totally like a real smarty, and I truly don't mean it as such:

Don't stop playing.

That is, if it is not an issue when you are playing, then I am curious how it hinders things. To hear it over the music, well, that would be an entirely too loud fan. Further, except for super quiet, and intimate venues where you have the audience's undivided attention, I think nobody would hear it enough for it to be a bother. Just general room noise ought to drown it out, eh? For those super quiet venues, though...well, if you're that up close and personal with a gathering of folks, I think that would call for no amplification at all.

I just read your intial post again. So, even playing at low volumes triggers the thing, and you can hear it over your music? Lower volumes to me equate to "cooler" input and lower levels. I must say, that fan trigger must be set for awfully low input (broad assumption, there, of course).
I posted about the cooling fan here: Cooling Fan and I got a confirmation from Steve-at-Bose that it will come on when the amps are being pushed.

It sounds like yours is more sensitive and louder than mine though. I have vocals, acoustic guitar (pick up and mic) and a Porchboard going into a mini mixer and into the L1 M2. My fan only comes on if I thump on my Porchboard (rhythm instrument that produces a low tone.)

I can't get the fan to come on with just guitar and vocals and I sure can't hear the fan while I am playing. As soon as I quit, I can hear it run for about a second and then turn off. That is the only reason I knew it was coming on and off.

Perhaps you are in a warmer room than I am and that makes the fan more sensitive. (?) My studio/office temp right now is 75.2 F.

This probably doesn't help you any but I thought I'd give you my fan experience/perspective because, as I said, it sounds like yours is more sensitive and louder.

Take care,
Just to throw in my 2 cents..., my fan comes on when I am strumming my guitar. I cannot hear it while playing, but if I stop, I notice it for a couple of seconds afterward. I am playing at fairly moderate levels, not really very loud. The fan noise really is nothing that would bother me at it's current noise level.

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