ADA Preamps > MP-1 Classic
Preset change lag
j4q0:
Hello,
I would like to know if anyone that has used or uses the MP-1 Classic has experienced a time lag between preset changes.
My unit has done this ever since I got it about 10 years ago and although it is annoying I learned how to deal with it while playing live.
Since I never played the original MP-1 until last year I assumed all ADA preamps did this but to my surprise the original does not have a time lag.
Any one with this problem? Perhaps my preamp is defective? Is there any chip upgrade that could solve this if that is the case?
As always, comments and suggestions are very much appreciated.
rnolan:
The last EPROM for the classic is v1.00 MJMP has them (http://www.marshalljmpmodshop.net/miscellaneous_parts_and_replacement_tubes.htm). I'm not sure if this addresses the patch change speed but it may well do (Dante ?, MJMP ?). When you boot it up check the version and if it's not v1.00 then changing the EPROM (not hard to do) to the later version is a good idea. The last EPROM upgrade for my MP2 included fixes for patch change speed. When I first got the MP2, it was noticeably slower than my MP1 so I know the frustration you feel, particularly when you need a very quick change from lead to rhythm etc. The MP2 v1.41 EPROM made a big difference and now it's fine.
j4q0:
Hi Rnolan,
I just turned on my MP-1 Classic to check the EPROM and it is indeed the v1.00. I wonder if there is anything wrong with it or if that time lag between preset changes is inherent to this unit. Since you said your MP-2 was slower than the MP-1 I can only assume the initial versions of the EPROMs of these had some issues in this topic.
This time lag always bugged me and I wasn't always 100% satisfied with the dist channel and now that I have the 3TM I end up using it exclusively so I might end up selling the Classic, tough decision since the brown channel on the MP-1 Classic is just the best, I just wish it had more gain though... this begs for the question: Any love for a high gain mod for the Classic? :)
rnolan:
Hey j4q0,
Mmm :???: , Dante or MJMP may be able to sched more light on the issue, I've never used a classic, I know its got a noise gate, I don't have a manual for it (Dante, I assume you do ?). I wanted to check if the patch change speed can be changed, the MP2 has two settings (Normal or Fast) for the patch change speed in the MIDI Function Menu. Have you tried an MP2, it has some very warm voices with lots of gain (available), may be an alternative to the classic particularly given you have a 3TM MP1. As for a high gain mod for the classic, over to MJMP. You could get a bit more gain by putting in the highest gain tubes you can find, and possibly tweaking the OD1 and OD2 trim pots (not sure how good an idea that would be) but there are trim pots which control the amount of gain in each OD circuit (but could be a recipe for unwanted clipping). However, nothing quite like adding an additional tube which adds 2 more stages of gain (2 per tube).
j4q0:
I have the manual, there is no patch speed change. The Classic is almost exactly as the original MP-1 but with the added brown channel, noise gate, stereo fx loop and its recording outputs (which are actually very nice).
I've seen a couple of MP-2 listed on craigslist close to where I live but I'm pondering on the expense of buying another preamp or if the price is right (~$300).
After getting the 3TM and reading about the trim pots and all the little tweaks that can be done to it I looked for trim pots in the classic... no trim pots ???
Yes, an additional (or a couple) gain stage(s) to the Classic would be just heavenly to be honest.
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