Ashdown MAG CT410-300

[Papalazarou]

Hi all,

I have recently got into playing bass, converted from rhythm guitar. I bought a 2nd hand Ashdown MAG CT410-300 Combo amp, and at my first rehearsal with it yesterday I got a weird grounding/earth electric shock which I have never had before, basically whilst holding my guitar I touched the mic and got a pins and needles style electric shock. Our lead guitarist touched another mic (both plugged into the same PA via XLR cable) and got a similar shock, to me, this points to the PA not being grounded properly. Having said that I have never had this problem before and we have been using the same PA for a few weeks now, so I am starting to wonder whether there is something wrong with the grounding on my amp.

A different problem I seem to be having also is that on the 5 band EQ the bass dial seems to work fine but both the middle and treble dials don't seem to affect the sound of the bass at all. Is anyone familiar with this bass amp who could tell me if I am doing something wrong which will allow the middle and treble dials to work properly. Maybe I should just take it to a guitar tech to have them give it the once over.....

Thanks for reading my post, and any opinions/help/suggestions would be appreciated.

Jamie.

 

[Papalazarou]

BUMP!

 

[Jay Corwin]

I have an Ashdown MAG300R backup head. I believe it's the same head that is in your combo.

First - the mid knobs and treble knobs should produce noticeable changes in your tone. If they are not you can check these:

1. Is your EQ button in? If it's not, then the EQ on that head is not being used. You can turn knobs all day and they wont do anything.
2. Have you set the input gain correctly? If the input signal is weak, it's going to respond different to the eq.
3. Have you tried EQ'ing with the compression completly off?

I would first try setting everything flat (12 o'clock on the knobs). Then start by setting your input gain. Then start eq'ing from there. If you still have no repsonse from the mids/treble - then there could be a problem with the amp itself.
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Good luck

 

[Papalazarou]

Thankyou for the reply Seven. I am not using the EVOII amp so I don't have compression built into the amp unfortunately. I have set the input so that when I really hit the E string, the dial doesn't go into the red, so I would say it is set to about 10 o'clock or so. The EQ button is definitely in. What is strange is that when I crank the output right up, I can hear a definite change to the hiss coming from the speakers when I twiddle the treble/1.6kHz/middle knobs but they don't seem to effect the sound of the bass at all. I am going to take it to a repair shop tomorrow to see what they think but do you think it would be a dodgy tweeter?

Thanks,
Jamie.

 

[Jay Corwin]

I wouldn't think it was the tweeter. You should here a noticeable frequency response when adjusting any of the knobs on the EQ regardless of what speaker combination is running.