Tagged With "Noise"

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Re: How Do I use the T1® Noise Gate to Automatically Mute a Microphone?

Seagullman ·
Easy to follow and understand. That should help a few people to avoid microphone feedback in more difficult situations. Tony
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How Do I use the T1® Noise Gate to Automatically Mute a Microphone?

ST ·
One cause of feedback is open microphones on the stage. You can use the T1 ToneMatch® audio engine Noise Gate to mute (shut down) microphones that are not actively being used. Here's a quick video to show you how to do it. ... more about the T1® ... T1® Videos ST
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Re: Two L1 Compacts / One Mixer

ST ·
Hi Sergio, Thank you for joining the Community. Thanks too, for all the information in your detailed post. The L1® Compact channel 2 inputs are balanced. I would use Tip-Ring-Sleeve cables. I looked at the specifications for a couple of Yamaha 10 Channel mixers here: http://download.yamaha.com/sea...p;product_id=1904372 The ones that I viewed have balanced connections for the Stereo Outputs (XLR and Phone Jacks). I would definitely try balanced (Tip-Ring-Sleeve) cables from the mixer to the...
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Two L1 Compacts / One Mixer

Seargaca ·
Hi, I've just purchased a couple of “L1 Compact System” to perform in a small auditorium (150 seats). I'm using a 10 Channels Yamaha Mixer to mix the following sources: - 1 wired microphone for the singer - 1 wireless microphone (SURE) for Preacher - 1 Macbook to play music (through headphones jack) - 1st Acoustic Guitar (using Passive Direct Box) - 2nd Acoustic Guitar (optional) - 1 Keyboard (optional) (using Passive Direct Box) All the audio sources are connected to the Mixer. The Mixer’s...
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Re: Two L1 Compacts / One Mixer

Seargaca ·
Ok. I will try out that too, and let you know. Thanks a lot. Sergio.
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Re: Two L1 Compacts / One Mixer

scottcald ·
As ST said, use balanced cables, but also, if you're hearing noise at the output, mute each channel at the mixer and see if it goes away. If it does, the input for that device or the device itself is the problem. Also, if you have 2 compacts and L/R outputs run each output to a compact rather than daisy chaining. My 2 cents. Hope that's helpful.
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Re: Two L1 Compacts / One Mixer

Seargaca ·
Thanks for your advices. I will buy balanced TRS cables to test. And also avoid using Channel 1 with the mixer. :-) Sergio.
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Re: Two L1 Compacts / One Mixer

Seagullman ·
Hi Sergio, first of all let me also welcome you to the community. Now to your problem. Regarding the cables which you should try/use for connecting the mixer to the Compacts I would agree with what's already been suggested here, especially considering the 25' cable lengths. TRS which are balanced connections is the way to go. Should there be any kind of interference picked up through the cables it gets neutralized due to the way the cables are configured. I will however say something...
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Re: Two L1 Compacts / One Mixer

Seargaca ·
Thanks, Tony. I will see the video.
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Re: Two L1 Compacts / One Mixer

Seagullman ·
Hi Sergio, I set up my L1 Model II in my living room for a few rehearsals with PA. I'm using two T1's (one into Tonematch socket on the power stand, and 1 into the analogue input of the power stand using a TRS cable. The T1 into the analogue input needs to be powered with a T1 power supply. This is the first time I've done this in my living room. No matter what I do with the connections I have a low level hum (ground loop) which comes as soon as I plug the cable from the output of the T1...
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Re: Two L1 Compacts / One Mixer

ST ·
Hi Tony, Quick thoughts: Are you using a 1/4"Tip-Ring-Sleeve cable between the T1® Master Output and the L1 Model II Power Stand Analogue input? It sounds like you are but I wanted to double check. Have you tried a different cable (above)? Have you tried a Tip-Sleeve cable (above)? Do you have the T1® Power Supply and the L1® Model II plugged into the same power bar? Have you tried a different power bar? ST
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Re: Two L1 Compacts / One Mixer

Seagullman ·
Hi ST, thanks for the "Quick Thoughts." Unfortunately yes to everything including swapping the T1's around. Always the same outcome. As soon as I plug the T1 power supply into a socket I get the hum. It's not so loud as to be really bad, but if I can get rid of it all the better. I'm sure we've both had to live with worse over the years. We've just become more critical and discerning .... This is a picture of the mains plug for the T1 Power Supply. There's no earth and it can be turned round...
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Re: Two L1 Compacts / One Mixer

Seagullman ·
Hi ST, the line insulation box (Palmer PLI-01) arrived on Wednesday and we tried it out this evening. No hum. I'm very pleased with the unit, and I think it may save me a few "headaches" in the future. It's definitely doing what it promised to do. Tony
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B1 Issue

steve j ·
Hi I had a gig recently, running my B1 with my L1 IS. After about two hours the B1 began making very loud distortions/rumbling/buzzing, which stopped the show. First time that happened. Room - conventional banquet room with 250 capacity Audience - 150 Settings - Trim on the bose stand was at half way. tone match: low at 4, mid at 4, high at 6. Active inputs - Vocal, guitar, ipod The B1 was next to the tower, both few feet away from the microhone. I turned the B1 off for a few minutes, turned...
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Re: B1 Issue

Nick-at-Bose ·
Hi Steve, I don't know for sure what happened. It may have simply been a processing issue in the power stand, but it's hard for me to say. Have you tested it now and it's working fine?
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F1 812 hiss

SoundGeek ·
812 Owners I just purchased two new F1 812s. Does anyone else have a white noise type sound from 5kHz to about 9kHz when the F1s are turned on, with all inputs open, gains set to zero and input set to Line? It's low level and would not be noticeable once music or singing begins for a live band or DJing but it definitely raises the noise floor and would most likely be noticeable sitting close to the 812s in a very quiet room. (such as a conference or play/drama, etc.) Just curious if this is...
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Re: F1 812 hiss

SoundGeek ·
Update: I have reviewed other units and called Bose Support. The slight hiss that I am hearing when close to the speaker is the noise floor of the 812 so this is normal. I love the sound of the 812s, especially when combined with the F1 subs! With these in the arsenal (in addition to L1 MIIs and Compacts, there are no longer any gaps for 99% of the events for which I need to provide sound reinforcement.
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Re: F1 812 hiss

Seagullman ·
Hi SoundGeek, I first started using PAs around 1970 and over the years have heard and used many different types of PA systems from the basic power mixer with a couple of loudspeakers right up to processor controlled systems. Even the really modern state of the art systems. They've all got one thing in common. When they're switched on there is always an audible hiss. Sometimes you can hear it from a way off, sometimes you have to get up really close to the loudspeakers to hear it. But it will...
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L1 Compact small High freq(Hiss) Noise when turn on

Seemon ·
Dear All please help, I just got my L1 Compact system, when I play music with it, it is just perfect, however there is a small high end noise(Hiss) when is silent, it is notable, and even I change the AC plug, it still there, anyone have the same problem, it is even I unplug everything and turn the knock all the way down, i can still hear the Hiss Thanks. Simon
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Re: L1 Compact small High freq(Hiss) Noise when turn on

ST ·
Hi Simon, Congratulations on getting your L1® Compact. It's not unusual to hear some hiss if you have channel 1 volume turned on. It can be noticeable if you have nothing attached. If you can hear the hiss with both channel volumes turned all the way off, and you can hear it a more than a meter away, that is unusual. Is it convenient for you to take your L1® Compact to a Bose retailer so you can compare it to another L1® Compact? ST PS Please make sure that your profile is up to date (Please...
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BOSE Backdrop or Noise Cancelling Curtain (Where to get one?)

Karaoke Niagara ·
Ive been searching everywhere including auction sites and classified sites but having no luck in acquiring a BOSE backdrop to use on stage to display behind the performers. any help appreciated. Looking for 4ft x 8ft or 6ft x 12ft or any available size BOSE Backdrop or Noise Cancelling Curtain with White BOSE logo in center.
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Acceptable Noise Level,

Jazz88 ·
New Owner here with L1M and T1 WHAT IS THE SOURCE OF MY NOISE PROBLEM Questions: The noise level of the L1 S1 unit seems excessive with the power base trim set at 12 o'clock (5). Why is it NOT necessary to increase the trim from zero when playing music via usb from the computer? There is a lot of head room with the volume. AND no noise at low or high volumes. Details: I set up the system when it arrived and was disappointed with the noise level delivered by the system. Output noise sounded...
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Re: BOSE Backdrop or Noise Cancelling Curtain (Where to get one?)

Nick-at-Bose ·
Hello Karaoke Niagara, I'm sorry to say we don't have anything like that with or without the Bose logo on it. Great question though and I wish I had a better answer! Thanks, Nick
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Re: Acceptable Noise Level,

Jazz88 ·
Thanks to ST for bringing me into the digital age. My noise problem was a result of patching the T1 to the Model II power stand with both the Tone Match Cable and 1/4" cable from the T1 master out to the analog input.. Connecting it as though to a Model 1 system. Thank you for the quick reply. jazz88
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Re: Acceptable Noise Level,

ST ·
Hi Jazz88, Whew, I'm glad we got to the bottom of your issue. Thanks for coming back to tell us that you're okay. Now that we have that out of the way, please tell us about your music. Thanks, ST
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Re: Acceptable Noise Level,

ST ·
Hi Jazz88, Thank you for joining the Community. I'm sorry this has been so frustrating for you. Let's start with a couple of key ideas: The connection from the T1® to the Model 1S Power Stand when using the ToneMatch cable is digital. It is independent of the Model 1S Power Stand Analog input. The Model 1S Power Stand Analog Input trim should always be set to 0 unless you have something connected to the Analog Input. You should be connecting your T1® using the ToneMatch port with the Model...
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Yamaha Moxf8 and Bose L1 compact Noise

James ·
I'm getting a loud noise when connecting a normal 1/4 cable from the mono output on my Yamaha MoxF8 synth to input 2 on the Bose L1 compact (line setting). However, when I connect to the RCA input on the Bose using a 1/4 inch to RCA cable, it works fine with no noise. I use the Moxf8 connected to other sound equipment and don't have this problem. Any help is appreciated.
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L1 MODEL 11 +T1 BIG NOISE THEN CUT OUT COMPLETEY

ALEC ·
I bought a brand new L1 MODEL11 WITH T1 on 4/11/2016 a few weeks ago I had a loss of power on my microphone during a gig but then it was ok so I thought nothing of it , However last night 2/12/2017 after I set up at my gig the system made a loud crackling type noise with no one on stage or near it, I was very worried as I had to start my set shortly after I completed the first half with no problems to my relief but near the end of the second set the system just made a bang and completely...
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Re: L1 MODEL 11 +T1 BIG NOISE THEN CUT OUT COMPLETEY

Nick-at-Bose ·
Hello Alec, I'm sorry for the trouble! The best avenue to resolve this would be to contact support in your region. https://www.bose.co.uk/en_gb/contact_us.html I would recommend calling the number listed since that'll be the absolute fastest way to reach someone. Thank you, Nick
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Re: Noise When Coming Out of Output Master on T1 Audio Engine

ST ·
Hi Mike, There shouldn't be any hiss coming from the T1 Master Output. Try connecting the T1 Master Output to a mixer or powered speaker to see if there's a hiss. You can get a stronger signal from the T1 Master Output. Set the Master Output to Pre-Master Volume. This sends the full output of the T1 ToneMatch ® Audio Engine directly to the Master Analog ¼ inch jack. This might help, if you can change the input sensitivity of the transmitter so you don't clip the input. Here's how you make...
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Noise When Coming Out of Output Master on T1 Audio Engine

Mike McDaniel ·
I have a bose L1 Model II system with T1 Tonematch audio engine. What I am trying to do is send a output signal out of master output of the T1 audio engine. I connected a stereo quarter inch TSR to the audio engine master output and the other end of the cord is a XLR which I connected to my sennheiser EW 100 wireless transmitter. I am trying to send the signal wirelessly to my video camera which has the receiver. Using Sennheiser EW 100 wireless kits. I tried several kits to make sure there...
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Re: Noise When Coming Out of Output Master on T1 Audio Engine

ST ·
Hi Mike, Did you try connecting the T1 Master Output to a mixer or powered speaker to see if there's a hiss? That's just for diagnostics. You got the same hiss both Pre and Post master volume? Good test. It's great that you get a clean signal from the Preamp Outs. It makes the issue (hiss from the Master Out) more baffling It sounds like it's time to call Bose Support. Bose® Product & Technical Support at (877) 335-2673 (U.S. and Canada only) Monday-Friday: 9:00 AM - 9:00 PM ET Please...
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Re: Noise When Coming Out of Output Master on T1 Audio Engine

Mike McDaniel ·
I Tried the exact method that you mentioned. That did not work. I tried it in Pre and post master volume. So I tried a little test I plugged the quarter inch plug into Pre-amp out under channel 1. Then I plugged another EW-100 into channel 2 and also plugged into Pre-Amp Out and the sound is superb. Of course the problem is I don't get the full mix. This is the question why can't I replicate the same test in the master without 30 to 50% hiss being introduced into my signal. Best Regards, Mike
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Re: Noise When Coming Out of Output Master on T1 Audio Engine

Mike McDaniel ·
I actually called them once. Not sure if the person I was talking to had a full grasp of the problem. I'll try again.
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L1 Classic - Clicking Noise

mmclogistics ·
Hello! We're a nationwide entertainment company, and one of our locations is working with an L1 Classic which is making a clicking noise. It's always in the background when speaking into the mic, and when music is playing, it overpowers the music. We've tried switching cables, unplugging everything and plugging back in, but the noise is still there. Does anyone have suggestions/ideas as far as what may be causing the issue or potential solutions? It's also worth noting that this system is at...
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Re: L1 Classic - Clicking Noise

ChrisJ-at-Bose ·
Sorry to hear about the trouble. If this doesn't just end up being a power/grounding issue with the outlet in question, then this seems to be internal, and there is nothing we could try, short of what you have already tried. I suggest calling our Pro Portable support team at 877-335-2673 for a service solution.
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L1 Compacts making vibration noises.

jdbassentertainment.com ·
I have had my L1 Compacts for some years now and they have served me well. That being both of them have had lots over noise vibration issues that when the bass notes change. Anyone else have this happen and is there anything I can do (tighten down certain screws). or do they have to go in. Any help would be helpful... I would rather not send them in.
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T8 mixer overdriving channel noise

Superjazzman1234 ·
We used the the T8 mixer with two L1 M2 towers on probably a dozen gigs since we got it at the beginning of the month. We like it a lot.! We noticed that sometimes if the trim from channels are set too hot and the red LED peaks out for a second, it will not just distort that one channel, but it seems to take out the whole mix on the outputs for a split second with a loud static white noise. I know the solution is just to set the trim to a lower level but in the live performance world you you...
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Re: T8 mixer overdriving channel noise

ST ·
Hi SuperJazzMan1234, Thank you for joining the Bose Portable PA Community. Let's talk about the input trim. You're right, you don't want hard clipping on the inputs. Typically, you only need to set the trim once for a particular input. That is: you won't change it during a performance. When you want to change the loudness of an input, use the channel volume control for that input. Here's a video about gain staging. It applies to all the ToneMatch mixers - with one difference. The T1® (in the...
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Re: T8 noise on outputs

ST ·
Hi Superjazzman1234, I just went did this experiment using best practices for gain staging from the source through to the output. Using USB A Playback with some contemporary tracks Set the track level to 100% Set the T8S Master, so the output meters were bouncing between 0 dB to +6dB (this happens at about 1:00 o'clock on the Master Output) Connected the T8S Right Output to an S1 Pro Channel 1 Input using a 1/4"Tip-Ring-Sleeve cable Reverb off Bass 12:00 o'clock Treble 12:00 o'clock When I...
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Re: T8 noise on outputs

Superjazzman1234 ·
Nope. Tried different cords, different powered speakers, different amps and combinations. it does it with both T8 mixers we have. The noise is coming from the output of the T8 for sure. Don,t get me wrong, we love this mixer and used it on 30+ gigs so far. This is something you wouldn’t notice unless you crank the input level of your amp or powered speaker. The noise is unusually high in comparison to other pro audio mixers we have around. If you use more level out from the T8 master and...
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Re: T8 noise on outputs

ST ·
Hi Superjazzman1234, Thanks for writing and asking about this. In the video you've the the Channel 2 volume control well above 12:00 and you turn it up from there. If you have a signal running through the ToneMatch mixer running around 0 db to +6 dB on the output meters, you'll find the S1 Pro will clip below the volume you've shown us in the video. I'll do some testing here and come back to this discussion. ST
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Re: T8 noise on outputs

Superjazzman1234 ·
Just to be clear, this noise is without any audio and the master on the T8 all the way down to zero. This is just noise coming up the line output with no audio. The output line is noisy. We duplicated it with a different T8 and a series of different amps and powered speakers. The noise is there when you turn the input level on the amp/powered speaker. Try it and you will see what I mean.
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Re: T8 noise on outputs

Phil T Williams ·
What have you got plugged into the inputs
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Re: T8 noise on outputs

Singsongwriter ·
Thats not good. Hmm...I was thinking about buying one too. Maybe a bad cord??
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Re: T8 noise on outputs

Singsongwriter ·
Thats not good. I was thinking of buying one also.
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T8 noise on outputs

Superjazzman1234 ·
We bought two T8 mixers and we have been using one of them at numerous gigs so far and we like it a lot. Both have the same symptoms I will describe. Did anyone notice that the main outputs either XLR or 1/4 has a lot of white static noise on those lines? Set it up link this: With the T8 master volume all the way down, all channels muted and the output of the T8 plugged into an external amp or powered speaker, no matter what type (tried on th S1, L1, and several others with same results),...
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Re: T8 noise on outputs

ST ·
Hi Superjazzman1234, I see what you mean. I can replicate the results in your video and as you described above. This doesn't demonstrate a fault with the system. When you turn down the amplifier at the end of the chain to a level you would use with a signal present, the noise is almost inaudible. Is the noise preventing you from using the T8S? ST
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Re: T8 noise on outputs

Bertman ·
That meets my experience. Compared to my pretty old Yamaha my T8 is more noisy (in combination with 2 L1 compacts). I gonna try to handle this by experimenting with the relation of mixer output an the volume control of the L1 compacts. Maybe there is a better sweet spot. I will report any news.
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Re: T8 noise on outputs

Superjazzman1234 ·
Our T8 is a workhorse and is being used on gigs several times a week This is not a problem in the operational use of the mixer. I just thought it was kind of unusual that great mixer like the T8 was generating so much noise in this situation when in many of our test comparisons the inferior mixers were very quiet.
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