Ashdown ABM owners club

[Woodinblack]

2 hours ago, alexa3020 said:

 As bagman says, as you add more low end you'll notice the needle move. I dont use the onboard compressor, but I can remember that killing the volume - not sure if that affects vu though

 

No it doesn't affect the VU, the Passive / Active switch makes a big difference though. I never get it high on most basses other than the bongo though, but I would think that the G&L wouldn't have an issue.

[Lozz196]

I`ve found that my US Precisions seem to put the needle into the red on the hardest notes with the Input Gain at 3 o`clock. This with the Shape enabled, and Valve Drive fully on.

[dagrev]

Thanks very for the replies. I brought the head home to try a few things, but last night at rehearsal used a '55 Pbass and input at 3:00, tube 3:00 to full on, not much in terms of EQ--a little bass and a touch of mids. I don't think of this bass as having weak output either. When I glanced over I never recall the needle moving much at all. I never even get to half way unless I'm trying and really dig in with any bass. 

 

I have also noticed that sometimes I get more overdrive than other times with the settings the same. Obviously the output of each bass varies, so that is a factor. Last night I never noticed any overdrive with the above settings, and I'm not shooting for distortion. 

Edited 15 hours ago by dagrev

[Bagman]

My old February 1998 Klystron 

 

never distorts but can get a little o/d relative to input level and “valve drive” 

[BassAdder60]

Might be worth fitting a new pre amp valve ? 
 

The EQ that affects the signal the most is the Low .. boost that and the needle should be hard into the red at times if the gain is around 1pm to 3pm and you play firmly finger style and more do if a pick player 

 

 

[dagrev]

Thanks again for the replies. I put a new JJ valve in when I got it used late last year. Had an Eden in it and the very mild overdrive sounded fizzy and high pitched. I emailed Ashdown and Dave Green replied in about 10 minutes and answered a question and recommended JJ for it. Helped a Yank like me (twice) with nothing to gain but good will and made me even more of an Ashdown fan. Love that company!

 

After some brief experimenting at home I found the following: 

I can get it to hit into the red if I play hard (with another Pbass), which I don't typically do, so that's clearly some of it. 

I notice more overdrive compression disengaged, but I like a little so I'm figuring that out a bit. 

I'll have to try the old Pbass and see how that goes, but I think I may not be having as much of a problem as I thought. At rehersal I don't have time to be fooling with the amp, so I'm limited on what I can notice and adjust.