Question about HHB Radius 50 Tube Amplifier

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Output fader ineffective

The output fader on one of my HHBs is inoperative. It shows output level signal regardless of where the knob is turned. Input gain works.

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It sounds as though the ground connection to the fader control has gone missing. Check with a meter.

Posted on Jun 07, 2007

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Posted on Jan 02, 2017

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1 Answer

What does manufacturer control auxiliary input auxiliary output mean


set level of input and output for audio .. similar to line in and line out of a stereo amplifier. This means you cannot alter the level of the signal out put or input to your audio system. It is set by the manufacturer. For a 1996 Ciera I assume you are adding some type of interface so you can either input or output a signal for a device. It is probably a set level on the interface. Some interfaces have tiny knobs where you can control the gain for input or output orthers are set by the manufacturer of the interface.

Aug 03, 2015 | 1996 Oldsmobile Cutlass Ciera

Tip

How to Set up Auxiliaries on a Mixer.


Here are some tips to set up the auxiliaries properly on your mixer:
  • Step1:
Your auxiliaries allow you to send the signal from a channel strip to somewhere else while maintaining the signal on the channel strip. For instance, you can use auxiliaries for monitor mixes for performers in a live environment. You can also use auxiliaries for external effects processors or a number of different situations.
  • Step2:
Set the auxiliaries to pre-fader to allow you to change the level for the auxiliary with the auxiliary knob but not with the channel fader. Most mixers have a "Pre" button that allows you to enable pre-fader mode. If you don't have the button pressed, your auxiliaries are in post-fader mode, which means your channel fader will affect the signal level of the auxiliary output. For monitor mixes, you usually want to use pre-fader so you can control monitor mixes independently from the front of house mix. Some effects processors will be better to run post-fader, though, so don't always rely on pre-fader.
  • Step3:
Send out your auxiliary sends. On the back of your board, you there are the auxiliary outputs. For a monitor mix, you will use these outputs to connect to the inputs of the monitors. When using an effects processor, you will use the auxiliary output to connect to the input of the effects processor.
  • Step4:
Plug in a return if necessary. If you are just doing monitors, you do not need returns to the mixer. When using effects processors though, you need a way to get your effected signal back to your mixer. Take the output of the effects processor and connect that to the return input on the back of the mixer. Now you will have to adjust the return section on your channel strip to get the desired signal.
  • Step5:
Use the auxiliary knob to set the desired level. Once you know if you are running pre- or post-fader, and you have your inputs and outputs all correct, you can start sending signal to your auxiliary output. Turn up the auxiliary knob until either your monitors are set correctly or until you have the desired amount of signal going to your effects processor or other outboard equipment.

on Aug 07, 2008 | Yamaha Mg102c Stereo Mixer

1 Answer

Clipping always lit


  1. Make sure nothing is plugged in.
  2. Turn the GAIN, LEVEL, and FX knobs for each channel, counter-clockwise all the way.
  3. Bring the MAIN fader all the way down.
If the signal LED's above the MAIN fader are still lit, then the board most likely has a short in it and will require repair.

If the signal LED's are dark, repeat the following on each channel...

  1. Rotate GAIN clockwise until the mark on the knob is at "12 oclock".
  2. Rotate LEVEL clockwise until the mark on the knob is at "3 oclock"
  3. Raise the MAIN fader to "0".
  4. Check LED's - if they light up then the channel you are working on is "noisy" or has a short in it.
  5. Return GAIN, LEVEL, and MAIN to "all off".
  6. Repeat with next channel.

Jan 25, 2014 | Behringer Xenyx 1202fx Mixer 12 Input 2...

1 Answer

Hooking up the speaker to an amp, using the rca line out of the amp i have no volume control from the amp knobs, can i hook the speakers up to the amp from the speaker out ?


You should NOT under any circumstances connect an audio input lead to a speaker output jack!
The RCA jacks you are trying to take output from ore "pre fader" which would be solid "line level" and not controlled by volume controls. Tap off the INPUT to the amp... you should be using balanced lines for the interconnects. RCA jacks are unbalanced lines. You can drive several inputs from a line level output of a mixer for example using a splitter cable.

Aug 23, 2011 | Harbinger APS12 12 Powered PA Speaker

1 Answer

I have a Behringer PMP 6000 that I just bought. With the power amp switch in Main L/Main R it works fine, but if I switch it to Main/Mon, only the Mon works, nothing from the Main. Bridge mode doesn't...


Bridge mode you use chan B (left connector on the back) using a SPECIALLY wired Speakon. The impedance of a speaker connected as such CANNOT be LESS than 8 ohms.

In the Main/Mon mode, the two amplifiers are separated in function. The monitor knobs for EACH channel input control the mix sent to Channel A which is for the monitor speakers. The Mon1 controls the level sent to Output A for the monitor speakers. Mon2 fader is NOT used.

The individual channel faders control the main mix and the Main fader controls the level sent to Output B which goes to the main speakers.

Apr 02, 2011 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

No sound


There can be any number of reasons for this problem - solve it diagnostically by starting with something that you know is working and work through systematically to the other end.
  1. Test a microphone on a separate amp to make sure it works okay. Check amp and speakers working. Check that all output cables from mixer to amp are working by testing separately.
  2. Plug microphone into a channel on mixer. Also plug in headphones and turn headphone volume control up.
  3. Make sure input sensitivity knob is turned up a bit (say half way) and main output faders (yellow) are up.
  4. Check that channel is turned on (little button just above the channel fader- needs to be pressed down)
  5. press pfl (pre-fade listen) button (next to button to switch channel on)- do you get any sound on main output or headphones or any indicator lights on mixer to show signal is getting that far (eitehr the individual channel metering lights or the main ones in the central section)?
  6. turn off pfl - make sure channel fader (slider) is up - normal position is ) - about 3/4 of way up. Check lights again on individual channel and main output section - any signs?
  7. Is the sub mix button for the channel pressed down - in which case you will need to bring sub mix (red) output faders up as well as main faders.
  8. If you have got signs of signal on the individual channel but not main see if the channel has been routed somewhere odd (like a subgroup of channels).
  9. Plug a working amp and speakers into one of the auxiliary outputs and use the relevant auxiliary send knob (on each channel just above the faders and pfl switches) to pan some signal to that auxiliary out - do you get anything? There is also a headphone socket for listening to the auxiliary channels (with a selector switch /knob to determine which one - make sure it is in the right position) try listening to the auxiliary output with headphones - anything? If yes the problem lies in the main output section.
  10. Check that there is not a jack plug in the insert socket (to route signal through an external effects unit) without a matching return jack being plugged in - if appropriate is relevant effects unit switched on and correctly set up - if unsure remove the insert plug to take it out of the system.
  11. Make sure any mute buttons are not switched in on main outputs.
You can download a full user manual here http://www.allen-heath.com/gl/gl2400

Feb 22, 2011 | Allen & Heath Allen and Heath GL2400-32...

1 Answer

How to connect effects processor to mackie 1602 mixer


Should be an Aux 1 or 2 output jack on the right side of the mixer. You can come out of the 1 or 2 OUTPUT jack to the input on your processor, and then from the output of the processor to Effects return or to a channel input. By going to a channel input you can then blend the processor's signal with a slider into the sound system with the other channels, while adding tone if needed. By going back into the Effects return, you just blend it overall by adjusting the Effects return knob.
To feed the channels through the processor, turn the AUX 1 or 2 knob up on each individual channel you want to go through the processor. Make sure the AUX 1 (or 2 if you are using that) MASTER knob is turned up on the right side of the console, otherwise nothing will go to the processor. You should see the processors' input light showing signal, if not check your connections. Good luck

Feb 19, 2011 | Mackie 1402-vlz3 Compact Mixer - 120v

1 Answer

How do I attach power amp to 1832 mixer


There are a number of configurations for a mixer like the 1832, the most common are PA system and Recording system. There are Main output jacks which carry the mix as summed in the main faders. These in a PA system would feed the pa amplifiers which drive the house speaker system for the audience. These connectors are XLR 3 pin type on the rear, intended for professional pa amplifiers which use balanced +4dbv line input level. Amplifier which have 3 pin XLR connectors for input signals can accept that high level signal. For home style HiFi amplifiers, the signal level is nominally -10DBv and balanced or unbalanced signal lines with 1/4in diameter phone plugs which are connected to the mixer by way of a second set of Main output connectors which are 1/4in phone jacks. Use whichever amplifier input level your amp has.
If you are not using it as a main PA house mixer, but using it for recording, the main output connectors go to a 2 channel recorder or computer sound card recorder. The power amp and your monitor speakers are connected to the connectors labeled "Control Room" (CTRL Rm). These output are useful for recording because the signal through the mixer can be monitored from several buses, Solo, main mix, selected by buttons provided. The buttons only affect the signal heard through the control room monitors, and not the main output which only sees the main mix so selecting "solo" does not interrupt the signal going to the recorder while the engineer in the control can be checking other signal paths through the board.

Jan 21, 2011 | Behringer Xenyx 1832fx Mixer 18 Input 32...

1 Answer

I have a behringer xenyx 2442 and the main output fader no longer works. Each individual channel fader now seems to go direct to the main mix and appears to bypass the main fader


The utput fader has probably been broken. If the knob takes a hit, it breaks the resistance element. The part is inexpensive but it takes a lot of work to access and replace the part.

Oct 14, 2009 | Behringer Xenyx 1002fx Mixer 10 Input 2...

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