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.

Hi somebody-at-Bose

On the T1 ToneMatch™ audio engine

It looks to me as though Channels 4/5 share the same signal chain with respect to Preset and Effects. Can I split them to separate presets?

If I want to run a Keyboard into T1™ Channel 4 and a prerecorded music source (backing tracks) into Channel 5, I would probably run preset 0 (completely flat, no ZEQ).

Or put another way,

Simultaneous / Independent Preset Processing
How many independent Presets can I run at one time in the T1 ToneMatch™ audio engine.

I count four, because even if I use the USB input, I must route that to Channels 4/5 to do any processing (I have independent volume?).

Just checking.

Thanks!
Original Post
Great question ST, I was wondering the same thing.

Andrew - I'd say one reason to have control of the volume from the T1. If you run to a straight input, like 3/4 on the L1mI, you'd have to use the R1 to control volume - causing you to have two "remotes" or if using the extra input on the L1mII, you'd have no control.
Hi Andrew

quote:
Originally posted by Andrew Douglas:
ST:

If you've got a source that you don't want to use EQ or effects on, then why not just plug it into the extra input on the power stand?

Aside from an awkward cable run, this seems as if it would meet your needs nicely.


Yes, if I don't need to use presets for that input.

But I'm really trying to understand how many presets I can access simultaneously with the TI™
without regard to whether I am using a Classic, Model I or Model II.
ST, Reso_Ralph and SoloAce,

Maybe I can help clarify this for you.

Channel 4/5 share one trim knob, effects (including Tonematch presets and zEQ), and one channel volume knob.

Meaning that any adjustment you make at these knobs affects both 4 and 5

Technically speaking, the inputs for 4 and 5 are separate. Meaning, you could connect something into input 4 and leave 5 open, or you could connect something into input 5 and leave input 4 open.

So what in the world would you use this for?

Well, the most common application I can think of would be to connect the left and right channels from a CD player or iPod. (keep in mind that the L1 only produces mono playback) but both of these channels would need to be raised and lowered in unison to retain musical balance.

Hope this helps.
Hi MichaelR-at-Bose,

Thanks for the reply.

To confirm: - within the T1 ToneMatch™ audio engine

I have:
Channels 1, 2, 3 (separate with trim, presets, and volume)

Channel 4/5 (one trim, preset, volume, between them)

USB Channels (left and right. volume only) may be routed to Channel 4/5 if further processing required.

So we have UP TO 7 inputs available
- up to 4 Presets at a time.

Analog only we have 5 inputs available
- up to 4 Presets at a time.

Trim, Presets, Volume applied to Channel 4/5 apply to both (inseparably)

Is that correct?
ST,

I am following up on your question with one of our project leads to get the correct information regarding the USB functionality you inquired about.

Its something that technically is not going to be supported by Bose (other than for software updates), so the information isn't exactly readily available.

The answer is going to depend on whether or not the analog inputs or the USB inputs have priority over each other.

I'll post the answer as soon as I get it, but my hunch here is that we're still talking about 5 inputs total.

All the other information is correct. 5 analog inputs - 4 presets at one time.

Trim, presets, and volume for 4/5 are inseparable.
quote:
Originally posted by ST:
Hi MichaelR-at-Bose,

Thanks for the reply.

To confirm: - within the T1 ToneMatch™ audio engine

I have:
Channels 1, 2, 3 (separate with trim, presets, and volume)

Channel 4/5 (one trim, preset, volume, between them)

USB Channels (left and right. volume only) may be routed to Channel 4/5 if further processing required.

So we have UP TO 7 inputs available
- up to 4 Presets at a time.

Analog only we have 5 inputs available
- up to 4 Presets at a time.

Trim, Presets, Volume applied to Channel 4/5 apply to both (inseparably)

Is that correct?


Yes...all is correct here.

Does this help? I feel like I am missing additional questions that are implied.

MikeZ
Hi Mike,

Thank you for the confirmation. I can rest easier in the hope that I haven't inadvertently misrepresented things.

Nope - no other questions implied (above, there are some new things below).

The reason for asking, is so that we all have the same core information when describing the inputs available on the T1™ .

The T1™ is so flexible, it can be tricky (and potentially, inadvertently misleading) to try to describe it succinctly.

I'm practising how to describe it. (and planning to add this to the T1™ wiki page).


Q: How many (analog) inputs?
A: Four with presets. The last one is similar to a two channel input for line level devices. These two share the same internal signal chain (Trim, Level, EQ, Effects, Preset, ZEQ, output routing to Master and/or Aux).

Q: How many microphone inputs?
A: Three. Each has its own independent signal chain (Trim, Level, EQ, Effects, Preset, ZEQ, output routing to Master and/or Aux).

Q: How many line level inputs?
A: Five. This includes the microphone inputs being used as line level inputs. The last two share a signal chain (Trim, Level, EQ, Effects, Preset, ZEQ, output routing to Master and/or Aux)

Q: Any more inputs?
A: USB input allows the T1 to act as a two channel sound card. These can be routed directly to the main output or through channel 4/5 for signal chain processing (Trim, Level, EQ, Effects, Preset, ZEQ, output routing to Master and/or Aux).




Next step - Outputs.

Mike - please rewrite or correct as necessary.

Q: What are the outputs on the T1™
A:
One Ethercon (RJ45) labelled ToneMatch™ . This is the digital equivalent of the Master output below

One ¼ inch TRS balanced phone plug labelled "Master" that is an analog clone of what is sent at the ToneMatch™ output except that it can be set pre- or post-master volume setting.

One ¼ inch TRS balanced phone plug output labelled "Aux". This is an independent submix of Channels 1 through 4/5. This can be use for a line out to another system (L1™ or House system or recording device).


EDIT: (Thanks to Le5 / Mark, below)
Preamp OUT – Preamp outputs for channels 1-3. Accepts a ¼ inch TRS balanced phone plug.

EDIT:
USB Output
Hilmar gave us "The T1 can also send audio back to the PC. You can select what you want to send. It can be either channel (1,2,3,4/5) or Aux or Master. For example you can make a little submix on the AUX bus and record that with for example Windows Sound Recorder or Audactity." See it in context


- oh - here's a question.
Can the USB input be routed to the Aux output. We know that it can be sent directly to the Master, or anywhere via Channels 4/5. Can it be sent directly to the Aux output?
ST,

quote:
Can the USB input be routed to the Aux output. We know that it can be sent directly to the Master, or anywhere via Channels 4/5. Can it be sent directly to the Aux output?


The manual only says it can be sent to Off, Ch4/5, or Master. A workaround would be anything going into 4 & 5 can be routed to the Aux output, & if it's mixed with the analog input (as the USB in is) then it can be routed to Aux.

It sounds like you're looking to be able to split off the USB input from the rest of the T1 mix. For this you could assign the rest of the T1 mix to Aux & use Master out for just the USB in.

Something else in the manual, "USB audio is inserted into channels 4/5 directly after the trim control & can be fully processed."

This is from page 31 of the T1 manual.

Tom
Hi Tom,

Thanks for finding that page in the manual.

For all - here is to top of page 31 in the T1™ manual



quote:

It sounds like you're looking to be able to split off the USB input from the rest of the T1 mix. For this you could assign the rest of the T1 mix to Aux & use Master out for just the USB in.


I was just trying to figure out if the USB input is as flexible / assignable as channels 4/5 (without having to sacrifice channels 4/5 to do it).

The extreme case would be using:

  • all 5 analog inputs for live sources.
  • the USB inputs for backing tracks from a portable computer.
  • the Master / ToneMatch™ to run one or two L1™s.
  • AND I want a different mix (including the USB portion) sent to Aux.
    To do that I would have to start with the USB input running to both Aux and Master and then balance everything else around that.


That is pretty obscure.

I'm completely okay if MikeZ says 'no' - you can only have 'Off, Ch 4/5 or Master'. I'm just checking.
Just to clarify.

USB audio from the PC can be routed to

a) Master
b) Channel 4/5
c) the great big data void on the sky (i.e. "off")

The routing can be chosen for left and right USB channel individually.

If it's routed to 4/5 it simply gets added to what comes in from the analog 4/5 inputs. There is no "priority". Of course, USB audio and analog audio will have to share zEQ, ToneMatch, Effects, etc..

Currently there is no way to route the USB audio to the T1's Aux Output mainly because we didn't think there was a good use case for it. These things are always a trade-off between offering the maxmimum flexibility at the expense of potentially cluttering up the user interface for things that aren't really useful. It's possible we guessed wrong in this case and we can certainly add the routing capability in a future software update.

We are always listening to our user community and I'm sure you guys wan't hold back with your thoughts Big Grin

Hope that helps

Hilmar
Hilmar,

I do see a need to potentially route the USB to the Aux, say if I was using the T1 to split a stereo feed to two seperate L1s, with the "Master" heading left and "Aux" heading right.

But from what you've said, it sounds like someone could send the USB to 4/5 and then send 4/5 to the Aux, right?

This obviously wouldn't give you the stereo split I was talking about, but would allow you to route the USB to Aux.

Amd I reading this right?
Tom's got it right, that would certainly work.

However, I don't see a scenario that gives you a single volume control for both channels (unless it's at the USB source itself). Even if we add the capability to route the USB to Aux, there still wouldn't be a single joined volume control.



Hilmar

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