Question about Cambridge Audio Azur 540A Amplifier

1 Answer

When you switch the amplifier on there is a strong background noise that is not linear with the volume, as it decrease a bit after the first quarter of the volume knob run. I have tried it in diferent rooms but the noise does not change.Any solution?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cambridge Audio Master
  • 5,020 Answers

If the noise does not go away when you turn the volume control down the problem is in the output stage. If the noise is in one channel, then you should only look at that channel. Use the other good channel as a guide to what is working. If in both channels then it can only be something common to both channels. The bad news is that anything can cause noise.

Posted on Nov 09, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Nady Systems XA-900 Amplifier


If the fan is thermally controlled then either that channel is not heating up enough to turn the fan on or either the fan or thermal switch has malfunctioned. The first thing I would try is to swap the fans. If the problem moves with the fan, then the switch is the most likely culprit. The fans are probably termally controlled so that they are not energized when the volume is low to reduce background noise.

May 05, 2014 | Nady Systems XA-900 Amplifier

1 Answer

Background noise


no problem with..record some part of the start with no voice just a 5-10 seconds remain quite...just kept running the recording...then start and record your voice after which install AudaCITY Software and drag your audio file in it and then select the first 5-19 seconds recording which was just the background kept recording selecting the part go to Effects -> Noise Removal then press Get Profile,

after which again select all the track by: Control + A key on PC and then go to Effects Noise Removal move the bar to the left side...and press ok/continue key....now your track is very much clean by the noise...and

for sound loudness select all the track and go to Effects -> Normalize then again Effects -> Amplify put the slider value to -0.1 of what the value is shown.

Jan 19, 2012 | Vizio VSB210WS Soundbar

2 Answers

Whichever direction I turn the volume control knob (clock or anticlock wise), the volume always increases. I cannot turn the volume down


There's a endless volume knob who has contacts to inform if the volume increase or decrease.
It's normally produce noise and the circuit understand it like a data.
You can put a 1uF/50V capacitor in the each of 2 soldering points of the volume control to the ground (there has 3 points. One is ground and the others are live).
Best regards

Jul 24, 2011 | Cambridge Audio Azur 740A 2Channel...

2 Answers

My subwoofer on my philips 5.1 speaker system is constantly generating lots of bass noise even on mute.


I assume you are using XP. Try these steps.
1. Open 'Sound and Audio devices' in Control Panel.
2. Select 'Advanced...' button near bottom. b2053f1.jpg

3. Select 5.1 system 972ed04.jpg

4. Start playing a sound.
5. Set the volume control of the subwoofer to the middle position.
6. Open volume control and adjust Master volume to a comfortable level (i.e. until there is no hum).
3ff9290.jpg
Also make sure you haven't muted any sound device except microphone. I think your problem is you have set it to the maximum level. So decrease it.
7. Mute the sound and check.
Good luck! Let us know the result.






Jul 07, 2009 | Audio Players & Recorders

1 Answer

Hissing


Sounds like you're connected to a cable, satellite, or DVR box ("set top box"). Many times these units have their own volume controls.

Try reducing the volume of the set top box to 80% or below, preferrably somewhere between 50% and 70%. When the volume is set too high, the background noise will be amplified as well, which then gets amplified by your receiver and becomes audible.

You will need to adjust the volume level of your receiver to compensate for the lower input level, and keep in mind that some channels may have more noise than others. It'll be a balance between having all your input sources are relatively-similar input levels (so you don't have to adjust the volume a lot when switching between sources) and how much noise you can hear or ignore.

Apr 06, 2008 | Denon AVR-2801 Receiver

1 Answer

Noise Cancelling distorts voice


try lowering the volume on the headset while using phone in quiet areas to avoid feedback.

Nov 30, 2007 | Motorola Mobility H700 Wireless Headset

1 Answer

Orion 275g4 Hcca amp


this actually could be your amp...try turning the gain down slowly and you will hear the bumping either stop or become morelike music background thanmusic foregroud. i had this problem with an older amplifier and i fixed it by getting a larder power/ground wire size and decreasing the gain a little.

Sep 03, 2007 | Orion HCCA 275G4 Car Audio Amplifier

2 Answers

Volume fluctuates???


-Your head unit has a sound monitor that increases volume to compensate for road noise. -Your amp isn't receiving enough power.

Oct 23, 2006 | Orion 2500D Car Audio Amplifier

1 Answer

High volume cut out


power amplifier circuitry problem,you need a qualified serviceman.

Oct 04, 2006 | Sony STR-DE595 5-Channel Amplifier

Not finding what you are looking for?
Cambridge Audio Azur 540A Amplifier Logo

Related Topics:

326 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cambridge Audio Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5020 Answers

Brad Brown

Level 3 Expert

15478 Answers

John
John

Level 2 Expert

509 Answers

Are you a Cambridge Audio Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...