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.

All the following has happened within the space of 3 weeks.

I purchased the L1 Model 1 with the B1 bass unit. I'm using backing tracks, single lead vocal and an acoustic guitar. I'm using Berhinger Xair 12 with iPad Pro. Master at 0 db, gain staging well within limits, essentially the desk end is setup the way it should be.

On first setup I though it sounded great and the quality was spot on, but on my first gig I had this limiting thing happening, very disconcerting, my vocal and guitar sounded massively compressed and in general the sound was awful.

Second gig, setup and just about to soundcheck and a red light appeared where the blue light normally is and there was a click coming through the column. I just happened to touch the column and the red light disappeared. I managed to get through the gig but again, the compression thing was happening.

During all this time, at no point was any clip happening, in fact not even an amber flash.

Because of the red light situation the base unit (controller, not the B1 module) was sent back to the shop and replaced.

3rd gig was a small room and the PA was fine and sounded great. 

Last night (4th gig) normal size room (about 100 people) and the compression situation is back.

My trim was set at 1-2 o'clock and if I turn it down it seems to ease the compression problem, not totally but a little.

In the days gone by of amps driving passive speakers, we'd always drive amps up full and 0db on the desk, gains down etc etc blah blah... So... my major question is, would it be better to try and get the desk down even more - from a gain staging perspective and drive the trim up full?

I'm kinda at the pulling my hair out stage. I was expecting great things of this PA but I fear as far as operating at a decent volume, it just isn't up to the task when it comes to a 'normal' size room, but I hope I can be proved wrong.

I do hope someone can shine some light on this.

Original Post

Hi MusicMick,

You said Model 1. The Model 1 has been discontinued. If this is a typo and you meant Model 1s or Model II then we can continue. Apparently you bought new, if you got an exchange. Where did you purchase?

The blue light is a power on indicator. If that light turns red it is indicating a system fault. Moving the column and the red light going out suggests there is a problem with the connection. If purchased in a retail store front, take the system in and demonstrate the problem in house. If the problem is not obvious from the outside of the system, like a loose connection or wire, I would request a complete, new in the boxes, system.

O..

Setting the analog input level;

When connecting an audio source to the Analog Input, follow these steps to adjust the input Trim control.

1. Set the Trim control on the power stand to the 0 (zero) position.

2. Connect the audio source to the Analog Input.

3. Adjust the volume of the audio source to the desired level.

4. While playing the source, increase the Trim level until the Signal/Clip indicator glows green or yellow.

5. If the Signal/Clip indicator glows red, decrease the Trim level so that it glows only green or yellow

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