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Can you give me block diagrams of high impedane 4 input mixer? plz.. its our project

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Http://www.freeinfosociety.com/electronics/schempage.php?cat=1

Posted on Jan 22, 2009

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HOW CAN I CONNECT A MIXER TO A TECHNICS SA-DX940 AV


I used the manual downloaded from http://www.manuals365.com/technics/sadx940.html

Try using the final stereo output of the mixer as the input to the CD or Tape or VCR inputs.and use the switches on the fromt of the DX940 as necessary.
The specificatios state input sensitivity is 27 mY so your mixer needs a low output..
No reason it shouldn't work.

Sep 18, 2014 | Technics SA-DX940

1 Answer

Hi,i have connected phono cables from mixer to anolog in on marantz dr4050 and from anolog out on marantz dr4050 to input on amp,there is no sound unless you turn levels to max and then it is very quiet...


So you're saying an unnamed mixer is feeding a potential analog signal to a CDR. You're monitoring the CDR output at an unnamed amp.

You haven't established that there is any signal to BE heard.

WHAT is the actual source sound device (BEFORE the mixer)? Is the source input visible on the CDR when it's in Record Mode?
Have you perused the manuals?

NEVER USE EXCEPTIONALLY HIGH VOLUME SETTINGS FOR TROUBLESHOOTING. If a signal is inaudible at half volume it's effectively not there. YOU WILL BLOW SOMETHING UP WHEN YOU FIND THE MISPLACED CONTROL AND FLIP IT.

Jun 07, 2011 | Audio & Video Receivers

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I have a new set up and i need a step by step instruction on how to set up the mixer to the amp and the decks to the mixer/amp


if this is a dj type set up, the mixer should have a main output (RCA or XLR), that is what you connect to the input on the amp, each deck should have RCA outputs, depending on if they are turntables or cd players, plug the turntables into the phono channel inputs on the mixer and if they are cd players, plug them into the line inputs on the mixer

Mar 28, 2011 | Audio & Video Receivers

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To reduce background noise from an audio mixer


when you say background noise I assume you mean the inherant noise that electronics produce. the the first thing to do is to make sure that all you input connections are shielded type, you don't need to spend money on gold plated connections, but do buy cables that are made with stranded wire and of decent size, bigger (fatter) is better when it comes to minimizing high frequency losses. Next, calibrate your inputs one at a time with a 1000hz signal that is 0db inn level. You can find this signal online through a search. you can also buy small plug in devices that produce this signal at 0 db (that is Zero Decibles) this is a common reference for "consumer" grade mixers, If you can't or don't want to spend any money on this you can use a signal from any tone generator, and some mixers have them built it. If you don't have any of the former, here is what you can do. turn all you mixer controls to 0 (zero) detent. in other words, flat, no treble, no bass, no midrange. on your inputs there should be input level knobs, these woule be set to thier lowest positionn if using a line input signal. if a microphone that level would be different, but wait on that for a bit. now have all you input knobs (or sliders) at minimum level. Now turn on your amplifer (if your using one) or what ever you monitor the output with. Headphones is a good choice as you can hear everything.
You should hear nothing. (nothing is supposed to in the inputs yet) if you hear noise take note of what it sounds like. turn the sound output level out (if headphones, turn up to a high level) and listen again. is the noise white (hiss) or hum (low freqency) if you have no noise, you have a good mixer and that is what it should be.
No plug in your first input, this is your choice but I would suggest you plug in microphone, now turn it up to the point where you can hear your own voice, you should hear just that, and maybe anything in the backgroud (furnace, tv, etc_) the quieter your environment, the better you can adjust this. Remember you will now need to turn up the input level. If you have meters you should be able to adjust the input to register in the green without turning red, a litlle yellow once in awhle is ok.
If this is quiet and clean you are ready to move on. turn that mic down to zero, but leave the input where you set it.
now plug in a line level source (your tape player,/cd player/ but don't use your computer as a source (yet). without anything playing on your machines you should hear very little noise in your headphones, if you hear a lot of noise you have bad cables.
Now play something through the tape/cd player, what ever and turn up the slider (not the input) this should give you a level,again in the green, with a little yellow, NO RED
once finished with this turn it back down and go to the next input. this time plug in your computer which most likely is coming from the green jack on the back (or front) of your PC/Mac or whatever. computers are very noisy machines, and just being close to one is sometimes enough to cause noise in a high gain system. anyway, plug in your computer and listen, you should hear some noise and I'd be surprized if this wasn't the source of your problem. make sure your volume level on the output of your pc is set to maximum, this will give you an advantage when recording. now turn up the slider on this input and listen for the noise level. good cables are important here and also the price of your computer may be reflected here as well since more expensive machines are better filtered and therefor produce less noise.
play a sound file (windows audio samples are noiseless and clearn) so use them if you can find thiem, look in your music folder for the sample files
You may hear some noise but your mixer is now set up at optimum and should give you nice sound if it is a quality mixer, good luck, Keith

Mar 24, 2011 | Audio & Video Receivers

1 Answer

How do I hook up my tascam fw1082 to a mixing board?


Hi, There are two ways you can connect it up. You have a TRS (Tip Ring Sleeve) monitor output that could be patched into the inputs of any analog mixer, balanced high level inputs.
You also have a S/PDIF stereo out. If a digital mixer doesn't accept S/PDIF you can get a converter to change S/PDIF to an AES, which any pro digital mixer will work with. I think HOSA has one for about $60.00, you might find something on Ebay as well.
Here is a Link to the TASCAM Spec page for you FW-1082

http://tascam.com/product/fw-1082/specifications/

I hope this helps,
Best Regards,
Mark

Jan 26, 2011 | Tascam Audio & Video Receivers

1 Answer

How to connect microphone to Yamaha RX-V365 as a PA system.


Home-theatre receivers don't have microphone inputs. If you want to use the receiver as an amplifier in PA system, you need to use some kind of mic pre-amp or a mixer with mic inputs.
For PA mixer is needed anyway almost every time and all mixers have at least one mic input (with a pre-amp). Mixers have line-level output(s), which you can connect to the analog input of receiver.
Using receiver as an amp in PA has advantage that you have 5 channel amp. When using high sensitive PA speakers (as oposed to less sensitive Hi-fi home speakers), you can get good performance with the power rating of receiver. You could even use 2 separate channels for subwoofers and 2 channels for satelite speakers - but for that you would need a receiver with 5.1 analog inputs and special device called crossover which would divide the output from mixer into low-frequency signal and high-frequency signal which you would then connect to the front and rear analog inputs. But with RX-V365 you can use only 2 channels with analog input

Sep 15, 2010 | Yamaha Rx-v365 A/V Home Theater Receiver

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I want to connect a compressor to the mixer but i dont know how can you help me?


Depending upon the compressor and mixer, there are a couple of options. The compressor should be between the output of the mixer and the input of the power amps. To accomplish this, you can use either an insert cable or 2 audio cables. Some mixers have an insert point for each output. These are usually marked as inserts adn use TRS cables (Tip/Ring/Sleeve). These cables are essentially the same as stereo 1/4" cables. If the compressor can take that, than all you need is a single insert cable. This insert cable will insert the compressor directly so that you still connect the mixer output to the amp as you woud without the compressor. If not, then you will need two 1/4" standard audio cables to connect the mixer output L/R to the amp input L/R.

Hope this helps,
Dan

Feb 04, 2010 | Audio & Video Receivers

1 Answer

I have an RCA STA 3900 receiver. I have 4 speakers...how do they hook up in the back of the receiver which has 4 A and B connectors.


through what input do you have the mixer and keyboard? if you are getting results say seeing your measurements....you should get sound. let me know what input you are using.seems like.........hard to figure without seeing. let me know your connections should be able to help!

Sep 13, 2009 | RCA Audio & Video Receivers

1 Answer

Tape loop


You may need to purchase a cheap external mixer with both mic and line inputs, and use that to mix the mic with the DVD audio. In most receivers, you can only select one input at a time. The output of the mixer can then be plugged into any spare receiver input, such as AUX, CD, DVD, etc. When not using Karaoke, you can simply turn the mic input down to prevent it from interfering with the DVD signal, but will still need to have the mixer on to hear DVD's.

Jun 26, 2008 | Onkyo TX-DS797 Receiver

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