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Title: No mid control - Can someone check for me ? Post by: JEDMON01 on April 06, 2009, 06:26:49 PM I removed PAB, FET & Rock switch some months back as I have no use for them.
( installed a clean o/d in the amp in their place ). My question is , whilst fiddling last night I noticed my mid control has no effect when the treble & bass are off !!! Could someone do this simple test and report back. Turn ALL EQ to zero ( and switches off ). Turn treble 0 > 10 highs come tho' YES ;D Return to 0,0,0 Turn Bass 0 > 10 bottom end comes thro' YES ;D Return to 0,0,0 Turn Middle 0 > 10 No effect !!!!! ??? I am sure this is OK as the controls interact enormously but it would be nice to know I have rebuild the EQ correctly after my canabalisation ;D John Title: Re: No mid control - Can someone check for me ? Post by: hywelg on April 06, 2009, 08:54:45 PM Hi John, this might be of little or no use to you as I changed my mid cap a while back to try and scoop some mids out of the tone to make it more Fenderish, anyway doing your test I do get a little variation in the mids. You know how Matt showed us how he dialed in an amp by turning the knobs quickly over the full range? well doing that I can hear a small change in the mids, not much and the cusp seems to be at around 6 or 7.
Be interested to know what you've done to get a clean boost, is it the mod that Dr Ika posted, the one that gives a control over the PAB function? Cheers Hywel Harris Title: Re: No mid control - Can someone check for me ? Post by: JEDMON01 on April 06, 2009, 09:29:38 PM Hi Hywel,
Glad you replied..... So when you had ALL controls off, and turned the middle control up, it did make an audible difference ? My mid only works if the Bass is up. I installed a Red Snapper on the FET board. Used the three switch holes for the controls , Vol, bite and Gain. Installed push-pull treble & middle pots for "bright" & "deep", not that I use them. Wired the snapper to the PAB relay so I can operate it from the footswitch. I installed all of Dr Ika's mods but I have slowly gone back to stock as it was a bit too big & dark for me, great for the Dr. I do have 470pf scrubbers as per Two Rock Custom reverb. And a 0.01 in place of 0.005 at the exit of the o/d. Also 100k instead of 180k feeding the o/d level. That's about it. Love it. Sold both my Two rocks. Kind Regards John Title: Re: No mid control - Can someone check for me ? Post by: hywelg on April 06, 2009, 10:14:43 PM So when you had ALL controls off, and turned the middle control up, it did make an audible difference ? My mid only works if the Bass is up. Yes it did, but I have to say, not much. I installed a Red Snapper on the FET board. Used the three switch holes for the controls , Vol, bite and Gain. Installed push-pull treble & middle pots for "bright" & "deep", not that I use them. Wired the snapper to the PAB relay so I can operate it from the footswitch. Wow that was very inspired! Love it. Sold both my Two rocks. Nice one! Cheers Hywel Title: Re: No mid control - Can someone check for me ? Post by: Franne500 on April 07, 2009, 06:37:06 AM Did you just rip a Red Snapper from its box or did you build it yourself from scratch ?
Title: Re: No mid control - Can someone check for me ? Post by: JEDMON01 on April 07, 2009, 03:06:54 PM Hi,
I build one from scratch as they are very simple. There is a picture of the final amp on MySpace .... www.myspace.com/johnedmondsuk John Title: Re: No mid control - Can someone check for me ? Post by: Franne500 on April 07, 2009, 06:05:45 PM Oh....great idea !!! Maybe I should built in an OD pedal aswell...... I REALLY like the Fulltone OCD - Maybe that would fit in there,,,,hmmmmmm :)
Title: Re: No mid control - Can someone check for me ? Post by: Steven_nl on April 09, 2009, 08:13:59 AM I brought my OTS to a local (and very good) tech and he showed me on the scope that the MID only works if the bass (and treble?) are set in a certain range. In some settings the mid had no effect at all. Had soemthing to do with the design.
Title: Re: No mid control - Can someone check for me ? Post by: JEDMON01 on April 09, 2009, 01:08:42 PM Hi Steven,
I brought my OTS to a local (and very good) tech and he showed me on the scope that the MID only works if the bass (and treble?) are set in a certain range. In some settings the mid had no effect at all. Had soemthing to do with the design. Many thanks. That's the news I wanted to hear.Kind Regards John |