L1 Model II

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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.

Sub cutout on L1 Model 2 with B2

Hi there, 

Played my first gig with my new L1 M2 with B2 (and tonematch) last night. 

Had a shure ksm9 in channel 1 (sounded awesome with kms105 preset), a Helix LT running into channel 2 (flat EQ on tonematch...using for electric, acoustic, and mando...different patches in helix), and a Roland SPD one Kick into channel 3 (T1 basic kick setting with a kick gate).

I had trim on unit set to 12, and volume on T1 between 10 and 11. I set the gain properly for each channel with mostly green and barely any yellow. Overall volume was on the low end.

I experience several sub cutouts for extended periods of time throughout the show. The L1 M2 never totally lost sound but all of the lower frequencies would completely cutout and make things sound like garbage. Kick sound totally went away and guitar sounded like someone was squeezing it's nuts.

I could only get it to come back by power cycling (one time just muting some channels and unmuting work) the main unit. 

Now, as far as power goes. I was running everything off of one outlet and this includes (2 other L1 compacts & T1s for my other band members, 3 LED Pars, the DMX controller, and power for my helix). I am wondering if this was a power issue where the L1 M2 has some sort of low power trigger that cuts all of the low frequency to save power...strange if that is the case.

The strange thing is that I have run our previous setup all off of one circuit before and never has an issue (previous setup includes full EV EKX system...2 15" subs and 2 12" mains, power conditioner distributing power to everything including digital mixer, 2 IEMs, helix board, wireless guitar transmitter, 7 LED Pars, and lighting controller).

That seems like a lot more of a power draw than an L1 M2, 2 compacts with T1s, helix board and a few LEDs. Also, it is worth noting that the compacts (running off of the same furman 6 plug strip) did not experience any sub cut...which makes me think something is wrong with my L1 M2...or that there is some built in low power feature that cuts sub frequency to prevent a full shut down.

This will definitely be a deal breaker for me because we are often only given 1 circuit at venues. Might have to stick with the old school large PA with in ears. Thanks for reading and for any feedback. 

-Dylan

Original Post

Hi Dylan,

Thanks for writing. I'm sorry you're having a problem with the B2 dropping out.

Thank you for the detailed report. I understand, it's disappointing to have things sound good and then have the low end drop out and bad.

This isn't normal or expected behavior related to power conditions. It sounds like you have a problem with the L1 Model II Power Stand (most likely) or the B2 (unlikely).  From what you've told us, this isn't related to your setup or the environment.

Please contact your dealer (since this is a new system) or call Bose Support.

Call Bose Technical support at 1-877-335-2673 (U.S. and Canada only)
Monday-Friday: 9:00 AM – 9:00 PM ET

Thanks,

ST

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