Question about Ashdown Klystron 500w Bass Amp Head

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Is the Preamp tube supposed to be completely lit or just somewhat lit, It never lights up fully, and now when I record using a USB mic from BLUE via my Ashdown cab there is a hum and it sounds gritty on the recording using (Garageband) never had this problem before, I am playing clean (bass) and for some reason I lose signal strength during the recording as if someone were turning down the volume and this while playing a deeper note on the bass guitar itself but from the Ashdown cab itself everything sounds fine.

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1 Answer

How do i update the firmware and is this may be the cause of the USB b not recognizing any memory sticks that we've tried?


usb b is for streaming digital media,not memory sticks,
  • High-power dual DSP engine with improved digital effects and output processing including Feedback Ferret®, 28-band GEQ/5-band PEQ, delay and limiter
  • USB 2.0 "A" connection to record directly to or playback from memory stick
  • USB 2.0 "B" connection for streaming digital out
  • 3-band EQ with sweepable mid-frequency and variable low cut filters
  • 2 stereo channels with dual mic/line inputs
  • 48 volt phantom power
  • 6 Aux sends
  • 4 subgroups
  • 100mm faders
  • Double the processing power of the original FX Series
  • All new switching power supply design is more efficient than the original
  • Silencer™ mic preamp XLR inputs
  • Weight Packed: 45.00 lb(20.412 kg)
  • Width Packed: 25"(63.5 cm)
  • Height Packed: 36"(91.44 cm)
  • Depth Packed: 11.5"(29.21 cm

May 19, 2015 | Peavey 32fx USB 32 Channel Mixer

2 Answers

What happens if I plug a 110v device into 220v outlet WITH adaptor


Is the adapter simply a plug adapter or does it step down the voltage? If it steps down the 22ovac to 110vac then the device should work fine. If it simply changes the plug to fit then you will fry the amp. What is the brand and model number of the adapter?

Jun 18, 2014 | ART New Art Tube MP Studio V3 VIII Mic...

1 Answer

V/u meter not operating. no tube light?


If the tube is not lit, then it may have a broken heater... replace the tube... OR the power supply may have a problem.

Sep 10, 2011 | ART New Art Tube MP Studio V3 VIII Mic...

1 Answer

Behringer europower pmp1000, mixer unit, has all leds lit ,is responding to mic. input, bur is not producing any ourput to speakers, can you advise please.


ALL LED's should NOT be lit all the time. If thsy are, there is a failure in the power supply.

plug headphones into the 1/4 inch main output jacks on the top... you will only hear sound in the left side headphone for each. This would verify the preamp is working.

Jun 25, 2011 | Behringer Europower Pmp1000 Powered Mixer...

1 Answer

I have Lexicon alpha, Condenser Mic, phantom power .If i record, the voice goes only to right speaker. I am using cubase le 4, stereo in/out are correctly.


Sorry, but the Lexicon Alpha does NOT have Phantom power and you can't use a condenser mic with it without a Phantom power injector or preamp.
If you mean you have a Phantom power injector then it should be working. Do you have seperate mics for the two channels of the stereo? If you have only one mic, then only one side will record unless you set for mono recording and then dump the recording into stereo voa Cubase. I would recommend you get a small mixer... even a 4 channel one to use ahead of the Lexicon so you can mix and PAN your mics the way you want them. The recording and trying to control the panning in Cubase can be frustrating... The Lexicon really doesn't have anything built in to PAN the mic to the center when stereo recording. Small mixers are inexpensive and often you can find them used or in pawn shops for cheap.

Feb 12, 2011 | Lexicon Alpha Personal Recording Studio

1 Answer

I have a lexicon alpha, samsung CO1 condenser mic and a samsung phantom power box, i have all the correct wires but i dont think i am connecting the correctly, HELP ME ! lol


Sorry, but the Alpha does NOT have Phantom power which IS required for a condenser mic.

You will either have to get a mic preamp that supplies phantom power or go to a dynamic type mic if you stay with the Lexicon Alppha.

Jan 17, 2011 | Lexicon Alpha Personal Recording Studio

1 Answer

Presonus studio channel has no sound


Assuming you are connecting a microphone to this, if the mic is a condenser mic, make sure you have Phantom power on the PreSOnus turned on. You have given us almost no info of your configuration of mics and other devices connected to this unit.

Dec 26, 2010 | PreSonus Studio Channel Tube Channel Strip...

1 Answer

I have a condenser mic, and it needed phantom power to work, so I bought the Ultra Di-100, but I don't know how to make my mic work with it.


Sorry, but the DI-100 can OPERATE on phantom power, not supply it. If you have a mixer that has phantom power then you have no need for the DI box. DI boxes are to convert unbalanced signals to balanced to send via XLR or TRS cables.

If you don't have a mixer that has built in Phantom power or a source of Phantom power, then you need a mic preamp that can supply the phantom power.

Here is an example device, but DO shop[ around as you should find some even less expensive. Make sure they have phantom power.

http://www.amazon.com/M-Audio-Audio-Budget-Microphone-Preamp/dp/B000CZ0RZG

Dec 21, 2010 | Behringer Ultra Di-100 Active Direct Box...

1 Answer

Have just purchased lexicon alpha to use on a Mac. Having trouble just getting started. Have hooked up a nice condenser mic into the alpha through the mic input on the rear and cannot get anything on the...


Make sure you have Phantom power turned on on the Lexicon... Oh,oh... it appears that the Alphs may NOT have phantom power which IS a REQUIREMENT for most condenser mics...

The Lexicon Omega does have this but apparently the Aplpha doesn't have it.

That leaves you with the choice of either getting a dynamic mic that doesn't need Phantom, or replacing the Alpha, OR using a preamp ahead of the mic before the Alpha...

Sorry, but those are the only solutions I see for you.

REMEMBER that condenser mics pick up everything and you cannot run them into a PA or they will feedback.

Oct 08, 2010 | Lexicon Alpha Personal Recording Studio

1 Answer

Only a dynamic mic works on my lap top not condenser mic


Make sure the 48 volt phantom power is on.

Remember this preamp has TRS BALANCED output. If you run this with a stereo adapter into your laptop, the signal and the inverse will be sent into the L and R channels of your laptop and they will CANCEL!

You need to use a special cable that takes say just the tip of the cable from the ultragain connecting to BOTH the left and right inputs of your laptop.

Sep 21, 2009 | Samson Audio C01upak C01u Microphone and...

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