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AA2049 manual Keep losing volume. How do they recharge?

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My fender twin will lose volume


Please see my previous anwser re cleaning your bright switch and input jack.

Sep 06, 2015 | Fender Music

1 Answer

My marshall G80RCD plays perfect...but every now and again...for no reason...the volume will spike to explosing levels for a few seconds. Thoughts?


A wild guess is that the soldering on the cold side of the volume control pot MAY be bad. When it vibrates and loses contact where it is soldered, the unit will go to full volume. Check soldering of ALL the pot leads into the circuit board. Look for a thin grey line around the lead part way up the menicus of the soldering.

May 12, 2011 | Marshall Mg15dfx 15-Watt Combo Guitar...

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Shure P2R body packs keep shutting off on their own in middle of show. Have to turn switch off and then back on to get them working again. Very tedious during a performance.


If the switches are being bumped off that would be obvious. Less obvious is that some people try to run these on rechargeable batteries... That is NO-NO as the voltage of the rechargeables is lower and after a short time the rechargeables degrade and will act as you are seeing. Use ONLY ALKALINE batteries. Another problem MIGHT be the battery connections are marginal and vibration breaks the contact momentarily causing unit to go off and stay off. Battery clips are a pain in these units.

Apr 15, 2011 | Shure P2r Personal Monitor Hybrid Bodypack...

1 Answer

Behringer pmp2000. I have Yamaha passive monitor and can not get sound out of it. any solutions.


The outputs are usually just for the front of house speakers - the monitors usually need their own amps.

Check the manual.

You have 1200 watss of power - so keep the volumes REALLY LOW to try things out - otherwise your speakers could be blown by the amp.

Mar 07, 2011 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

Amp volume drop with flabby bass sound.


1) can happen if the speaker is dying - voice coil defective or magnet needs recharging. happens sometimes with low quality speakers. 
2) faulty pre-amp section can reduce overall gain resulting in lower output volume.
3) for old amps dry solders in pre-amp & power amp section can have the same effect.
4) faulty coupling and filter capacitors can severely effect frequency response too.

Mar 13, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Low Volume using Kaoss Pad Mini while DJing


I'm having the problem too...I'm thinking that maybe getting the DC adapter MAY fix it though as stated in the Manual: "...The output level of the mini-KP will be smaller than its input level. This is because the attenuator circuit is connected at the input section, considering that the mini-KP is used on battery power." so maybe the dc connector will increase output volume?

Aug 22, 2009 | Korg Mini Kp Kaoss Pad

1 Answer

Loss of power while playing


If you can solder, try resoldering any connections on the board that appear grainy or have rings. It is likely that after the unit has been working for a while, the heat is causing a marginal connection to open up.

Keep us posted.

Dan

Feb 16, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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