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I perform at a venue that supplies an L1 Compact (with no mixer). It's a trio gig. The venue also supplies a seperate 25w bass amp (the overall mix is terrible). I own a L1 ll with tonematch and have much experience with it.

I decided to connect my tonematch to it (ch 2, line out) with mic, keyboard and bass. It sounds beautiful. But when the music director saw it, he freaked out about the bass saying "You'll blow the tweeters!" I explained that there was a crossover frequency at 400hz (which he didn't understand) and I checked with the owners manual and Bose forums before I did it. I also mentioned that the keyboard (88 keys) plays lower that the bass but he said "thats different". I tried to explain what really blows speakers (too much trim, but he cut me off)

My settings: for channel 2 is 12 o'clock, line out. The trim for each instrument on the Tonematch is set so that nothing goes to yellow, the channel volumes at 12 0'clock, master at 12 o'clock.

My questions:

1. I'm I right about in my assumptions?

2. Can I get something "offical" from Bose indicating that bass can be used with the L1 Compact?

Original Post

Hi MarkWH,

Welcome to the Bose Portable PA Community.

MarkWH posted:

I perform at a venue that supplies an L1 Compact (with no mixer). It's a trio gig. The venue also supplies a seperate 25w bass amp (the overall mix is terrible). I own a L1 ll with tonematch and have much experience with it.

I decided to connect my tonematch to it (ch 2, line out) with mic, keyboard and bass. It sounds beautiful.

Great!

But when the music director saw it, he freaked out about the bass saying "You'll blow the tweeters!" I explained that there was a crossover frequency at 400hz (which he didn't understand) and I checked with the owners manual and Bose forums before I did it. I also mentioned that the keyboard (88 keys) plays lower that the bass but he said "thats different". I tried to explain what really blows speakers (too much trim, but he cut me off)

My settings: for channel 2 is 12 o'clock, line out. The trim for each instrument on the Tonematch is set so that nothing goes to yellow, the channel volumes at 12 0'clock, master at 12 o'clock.

My questions:

1. I'm I right about in my assumptions?

Yes.  

Here's an article you can show the Music Director that confirms what you're doing.

T1 ToneMatch Audio Engine to L1 Compact





2. Can I get something "offical" from Bose indicating that bass can be used with the L1 Compact?

You can share this response with the Music Director.

The L1 Compact is engineered to provide sound reinforcement for live and pre-recorded music. That includes the full range of frequencies used in music amplification (e.g., a symphony orchestra or modern music), including electric bass and standup bass. The L1 Compact has built-in limiters that protect it from damage from instrument and line-level sources like the T1 ToneMatch audio engine. 

Note: If you see solid red lights on the L1 Compact, or you hear audible distortion, turn down the volume.  You won't damage the L1 Compact but running it with solid red lights won't sound good.

Does that help?
ST 
Community Manager and Curator of the Bose Portable PA Wiki
BOSE Professional

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