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.

I'm a rookie Bose user, having just bought an L1 Compact.  I plan to use it for calling to groups of Square Dancers, perhaps up to 40 dancers.  I've begun to practice in the basement and notice that with channel 2 volume turned to about the 9:00 position, my laptop's music produces plenty of volume for my basement space.  However, Channel 1 volume has to be turned past the 3:00 position before the microphone voice volume can compete with my basement level music.  That does not leave a lot of room to increase voice volume before I get feedback, so I'll have trouble calling to 40 noisy square dancers in a large hall, if my music is loud enough for them to hear, but my voice is not.  Is this normal performance for the Channel 1 on the L1 Compact?  My microphone is an EV N/D767a, connected through a 1/4 " plug with an XLR adapter, to fit into the Channel 1 socket.  Any and all advice would be appreciated!

 

 

Original Post

Hi, Dave H.

Welcome to the Bose Portable PA Community.

Dave H. posted:

I'm a rookie Bose user, having just bought an L1 Compact.  I plan to use it for calling to groups of Square Dancers, perhaps up to 40 dancers. 

Thank you for the background information. That's helpful.

I've begun to practice in the basement and notice that with channel 2 volume turned to about the 9:00 position, my laptop's music produces plenty of volume for my basement space.  However, Channel 1 volume has to be turned past the 3:00 position before the microphone voice volume can compete with my basement level music.  That does not leave a lot of room to increase voice volume before I get feedback, so I'll have trouble calling to 40 noisy square dancers in a large hall, if my music is loud enough for them to hear, but my voice is not.  Is this normal performance for the Channel 1 on the L1 Compact?  My microphone is an EV N/D767a, connected through a 1/4 " plug with an XLR adapter, to fit into the Channel 1 socket.  Any and all advice would be appreciated!

My EV N/D 767a has an XLR connector. Does yours? If it does, use an ordinary microphone cable (XLR at both ends).  I expect you'll have better results.

Does it make a difference for you?

ST

Dave H. posted:

I'm a rookie Bose user, having just bought an L1 Compact.  I plan to use it for calling to groups of Square Dancers, perhaps up to 40 dancers.  I've begun to practice in the basement and notice that with channel 2 volume turned to about the 9:00 position, my laptop's music produces plenty of volume for my basement space.  However, Channel 1 volume has to be turned past the 3:00 position before the microphone voice volume can compete with my basement level music.  That does not leave a lot of room to increase voice volume before I get feedback, so I'll have trouble calling to 40 noisy square dancers in a large hall, if my music is loud enough for them to hear, but my voice is not.  Is this normal performance for the Channel 1 on the L1 Compact?  My microphone is an EV N/D767a, connected through a 1/4 " plug with an XLR adapter, to fit into the Channel 1 socket.  Any and all advice would be appreciated!

 

 

But a Yamaha MG06X. Very compact, with effects. It can be run on 12 volts in case you might plan for an S1 Pro in the future.

Yendor posted:
Dave H. posted:

I'm a rookie Bose user, having just bought an L1 Compact.  I plan to use it for calling to groups of Square Dancers, perhaps up to 40 dancers.  I've begun to practice in the basement and notice that with channel 2 volume turned to about the 9:00 position, my laptop's music produces plenty of volume for my basement space.  However, Channel 1 volume has to be turned past the 3:00 position before the microphone voice volume can compete with my basement level music.  That does not leave a lot of room to increase voice volume before I get feedback, so I'll have trouble calling to 40 noisy square dancers in a large hall, if my music is loud enough for them to hear, but my voice is not.  Is this normal performance for the Channel 1 on the L1 Compact?  My microphone is an EV N/D767a, connected through a 1/4 " plug with an XLR adapter, to fit into the Channel 1 socket.  Any and all advice would be appreciated!

 

 

But a Yamaha MG06X. Very compact, with effects. It can be run on 12 volts in case you might plan for an S1 Pro in the future.

A nice Mixer ... only wish it had eq on Channels 3/4 & 5/6

Thanks to all of you who replied.  First, I did have a small Mackie mixer in my collection, which I inserted between my microphone and the L1 Compact.  It did move the feedback limit from the 3:00 position to the 11:00 position of the Channel 1 volume control, however the actual voice volume produced before feedback seemed about the same to me.  Still, I learned something about preamps.  Thanks for that. 

Secondly, my microphone cable ends with a 1/4" plug, hence the need for the XLR ADAPTER.  Would a cable ending with its own XLR connector really make a significant improvement in voice volume?  I thought adapters were supposed to be neutral regarding signal strength.

Hi, Dave H.

Dave H. posted:

Thanks to all of you who replied.  First, I did have a small Mackie mixer in my collection, which I inserted between my microphone and the L1 Compact.  It did move the feedback limit from the 3:00 position to the 11:00 position of the Channel 1 volume control, however the actual voice volume produced before feedback seemed about the same to me.  Still, I learned something about preamps.  Thanks for that. 

Secondly, my microphone cable ends with a 1/4" plug, hence the need for the XLR ADAPTER.  Would a cable ending with its own XLR connector really make a significant improvement in voice volume?  I thought adapters were supposed to be neutral regarding signal strength.

Is the connection on the microphone XLR? If so then please use and XLR cable (XLR to XLR) from the microphone directly to the L1 Compact channel 1. That will probably help.

Not all adapters are neutral regarding signal strength.  Without being able to see the cables, here's my best guess at what's happening.

The EV N/D 767a microphone is a low-impedance microphone with a balanced output connection (XLR).  There are three pins in the XLR output. 

Image result for xlr pin outs

The cable you have "My microphone is an EV N/D767a, connected through a 1/4 " plug with an XLR adapter" with the 1/4" plug may be passing only two of the three connections. If the end looks like the plug on the left, it has only two connections. The signal is no longer balanced.

Balanced Audio

To maintain the three connections (and the balanced connection), the plug must have three connections like the plug on the right.  1/4 inch (6.3 mm) Tip-Ring-Sleeve

Even if the plug is 1/4 inch (6.3 mm) Tip-Ring-Sleeve the XLR adapter may be passing only two connections, not three. That would also give you an unbalanced connection.

Depending on the cable and the adapters, you may be changing the connection from balanced to unbalanced and changing the impedance. Either or both will cause a drop in the signal of  - 6 dB or more. That could be the reason you are getting poor performance from the microphone.

If the microphone is working properly and the cable is appropriate, you should not need a mixer or device between the microphone and L1 Compact channel 1.

The EV N/D 767a has an XLR output. Please use an XLR to XLR cable directly to the L1 Compact channel 1. If that doesn't help, then there may be an issue with the L1 Compact or the microphone.

Does that help?

ST

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