Is this just me that loves the nosey mids of the deluxe reverb? Now THATS why I always played with the mids on 9 on a twin reverb without knowing about the technical stuff!!! Thanks for the amazing videos, bro! ❤️❤️❤️

Killer info! Now I want a mids knob on everything!

A lot of players like more mids than 6.8k to get to a more Marshall feel or a jtm. They either replace the mid resistor with a 10 or 16k one or use a 50k pot. As you said the mid pot can be used to bypass the tonestack. However, even though one might think that might lead to more of a Tweed sound it actually muddies it by bringing too many low mids into the mix. Also, the tone controls are interactive. Since putting in a mid control on my brownface Fender 63 Vibroverb (on the Normal channel) i found it is not as useful as i hoped. I aimed to get more 800-1000Hz into the mix but i got more of 400-600. Taking the bass down didnt fix it either. Ive come to the conclusion that i like the Bright channel (vibrato) better which has a 10k resistor. An EQ pedal will be acting as a fine tuner from now on.

Mesa Boogie do a similar thing on the clean channel tone stacks - 25kΩ mid pot gives an extra mid and gain push (they use sometimes use a 0.022µF cap which shifts the mid frequency down a little but doesn't change the range and depth of adjustment compared to 0.047µF). 100kΩ mid pot is a little too much for my taste but thats just me. Mesa a linear taper pot there too, which works great, makes black face range conveniently below 12 o'clock and makes dialing in 6.8k a little more intuitive!

Whats a mitzput?? 😂. Great as always.

The power rail dropping resistors do change, and I am not at all against swapping those resistors on the rail around on some Fender amps if a player does not like the factory sound. I had a girl that commissioned two Deluxe Reverb amps, the first one 1x12 and then a 1x15 deluxe reverb, after which she said she just hated the Deluxe Reverb. A little preamp power rail tweak a concentric pot for a mids control, and she is quite happy with them now. A dual 250KA taper concentric pot with a 11K or a 12K resistor between the outer terminals on one pot makes one half of it into a 10K A taper pot, more or less, for the mids. The taper does change a tiny bit. I actually have the 1x15 now, so she kept the 1x12.

Very interesting stuff! Not wanting to modify my very valuable vintage amp, I do the same thing by using a BOSS EQ pedal.

I have a 65 Deluxe Reverb I purchased in the mid 70s. It is the most insane amp I've ever owned.

Thanks, it only took me over 60 years to learn this.

The most important pedal for any amp is an equalizer. You can dial in just about any tone your amp is wanting, your ear is wanting. Cheers

Thanks so much for explaining that! I love all of those blackface amps and have always wondered at the differences other than power and speaker config

Wow! 1.2k for Mids attenuates the entire frequency range. I’ve used a linear pot instead, either 25k or 50k. Frankly I think that 25K is plenty. I don’t need to more or less bypass the tone stack; however, you might! Lyle - your focus the taper of different pots isn’t a new idea for me, but you address it in such a practical “this is what it will sound like” way. Good stuff! Have you experimented with a Dwell pot in place of the 1 Meg resistor at the start of the AB763 circuit? You need to have a nice, loud reverb tank but a Dwell pot gives you another range of reverb effects. (The 6G15 reverb unit had a Dwell pot - that’s where I got the idea)

I tried a mid pot with my DR, and finally I found it had the best tone with the 6k8 position 🤗

Great topic, thank you..I used to like to replace the 6800 (on the bass pot)resistor in my ProReverb with a 10k. I played it pretty clean and liked the mid boost.

I had a 1.5k resistor so I tried tagging it to the 6.8k which gave me close to 1.2k. I like the sound of the 6.8k better. I am working on a custom single channel deluxe reverb without trem and a mid pot so this really helped me to understand what I need to do for a mid pot. I may run a the pot in series with a resistor to set the mid point at 6.8k. Thanks!

Wow I've always wondered about this. Thanks for the explanation. I built an AB763 Deluxe Reverb clone kit as a head to run through Marshall 4x12 like a psychopath. I've always thought about adding a mid pot. I'm gonna play with that 6.8k like you mentioned and see what happens.

I love this kind of info, I have a 1976 (AA270) silver face Vibrolux that I've owned for 10 years and I want to know everything about it. I hope you are doing a series, that'd be awesome 😁👍

Excellent .. really enjoy this

Very helpful! Appreciate everything you share Lyle 👊😎

Sweet spot on my “no mids” pro reverb is both bass and treble between 2-3, with bright switch on.

Need more episodes

Interesting that you use a 100k. I typically use a 10k on a dr or pr to match the twin pot. I’m not interested in defeating tone stack though. I will keep this in my back pocket if someone asks for more gain.

6.8k on my 66 Twin is 9 on the mid pot. Interesting video.

how common is to reduce the mids on a deluxe reverb? I got a 68 CRD and a SRri. i set the mids around 5/6 on the super. i found the 68 crd has a but too much midrange and googling how to reduce them i found your video. will the 68 crd it sound good with reduced mids? Thanks

Love it...

How do I clean vol pot?

Could you alligator clip in different mids resistors to find that sweet spot?

There were non reverb AB763's. I have the bandmaster.

Would adding a mid pot give it more of a fatter and more marshall type sound? I have a 64 custom deluxe reverb that I’m battling with when I use an overdrive pedal. Because of the scooped mids. Any suggestions? I have changed out the original speaker to a celestion creamback 65 to get a smoother more overdrive friendly type of sound.

you had mentioned kendrick blackframes not being a suitable speaker for super reverbs because of 1 inch voice coil . they sound fine in my amp but im always open to try new things . you also said you put wgs g10c speakers in a super reverb , those speakers weigh 7 lb .. how do they sound

When making changes to a tone stack, do you run simulations on the Tone Stack Calculator from Duncan Amps first or do you just do trial and error experimentation?

Hello, so with the 6.8k ohm resistor you get that scoope tone? thanks

The pots are all interactive. If you turn the mids up, you have less bass response. More mids is good if you play a Les Paul, but if you are playing a Strat you want more bass.

Like listening to an Artisan Baker tell how and why a great bread it made!😂

Is that brass bar stock under the tone pots an addition you did or do they come like that, I don't recall seeing that ever ? Thx.

hi I absolutely love your channel ! You meant to say 100k" linear" not "taper"..10% tolerance pot? correct? Where do you source these? also when you add the mid tone pot to deluxe reverb do you leave in or take out R21 6.8k resistor? thank you for your help

Very interesting topic! Anyone know if the same thing is happening on a Princeton? They always seem to have less mids than the Deluxe Reverb, to my ears.

Anyone here have any advise for me. I just bought brand new 65 reissue super reverb. I'm not tech savvy. I don't know a tech that lives in chattanooga. I'm searching. I'm struggling to get the super to react to my pedals. I've tried all eq combinations lol. Including setting them to where they just start to work. But every overdrive I put on. It sounds terrible I mean ten times worse than through my hot rod deluxe. The hot rod deluxe is a way darker amp anyways. I want to keep the amp. What can I do or have done to the amp to make it except overdrives better? I appreciate anyone who takes the time to respond

Saw a video from Pete Thorn today that talked about the Hiwatt 103 and its 100 ohm mid pot that gives it its huge midrange, plus added drive in that range. I hadn't realized the the pot could add that much added character to a specific range of the amp. He also stated that the Hiwatt was basically a fender on steroids. Is it that easy to mod an amp's character with the pots?

Thanks Lyle, Are the mids the same on a Vibrolux Reverb as the Deluxe Reverb?

Would you recommend adding a Mids knob to a Blackface Fender Bassman?? If so, is it easy?