NAD: 1987X - JiveTurkey & La Szum are to blame! 😭

Mongillo19 said:
Man even with a load box it sounds killer 😵
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While it still sounds great, I'm never not going to love the feeling of muting the strings and giving them a good whack with the pick when it's cranked through a cab. That alone was enough to bring a smile to my face.
la szum said:
I was melting in my Recliner with no A/C tonight, and saw that video in my feed. Rippin'!!!!!!!!!! :rawk

Just adore those Marshall overtones and that upper mid snarl! :chef

I could tell you had the Hot Mod engaged.... or were boosting. :idk


Kind of cool that you have both a 50w Plexi and what is essentially a 2204 when you
engage the Hot Mod. :banana
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Hahahah I haven't spent nearly enough time with this amp to have learned it, I had maybe an hour or so of play time on Saturday and then yesterday was spent violently expelling all contents of my stomach, including every sip of water I prayed would stay down, as I laid on the couch and tried not not to move an inch.

Definitely going to take advantage of the cabs/scenes with these load box presets, the pickups and speakers are the main points of changing tones with this thing. Naturally, the Tchula in front of it when it's clean sounds glorious and I'm digging the PastFX Tube Driver for lead stuff without sounding like I'm trying to rip off EJ. And big surprise here, the Dry Bell Vibe got me lost for a good 45 minutes in noodle land.
 
Tip; Here's how I jump the channels on a Plexi.
Guitar into Normal 2 HI.
Jump Normal 2 LO into Treble 1 LO.

It give more useful range for adjusting clean tones from both Treble and Normal channel volumes, since it's using both low Inputs instead of both high inputs.
Add a one knob volume box in the fx loop and enjoy almost Fender like cleans from a Plexi, works amazing with pedals.
 
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James Freeman said:
Not if you plug both 1 and 2 input and jump into the other channel how I do it described in my last post.

I will draw the resulting input voltage dividers when I'm back from work.
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As soon as you stick anything into the high input, it lifts the ground connection from the high input’s 68k grid stop and a 1M resistor ends up in series with it. The low input now acts like the high input.
 
I've corrected my post, I was jumping Low to Low.
The Treble input now gets 1/4 the guitar voltage which is very useful.

Resistor names are the same so please verify.

Low to Low Jumping.jpg
 
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Chocol8 said:
OK, that makes sense. Basically delivering a lower signal to the treble channel to make the volume pot sweep more usable.
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Yep, 1/4 the input voltage (-12dB) to the Treble channel.
I didn't see anyone jumping channels this way, so I guess there is more things to learn about the mighty Plexi even after 60 years. :LOL:

20*log(1/4) = -12dB
That's no joke, it makes the amp so much more useful for clean tones.
 
I’m looking forward to doing a deep dive on Plexi’s and their history. Outside of knowing Jimi was one of the first to start using them like we use them now, I have no clue about which models came out when, when people figured out they could jump the channels or if that was an advertised feature from the start, etc.

Maybe I’ll take it a bit seriously and do a write up about it, condensing whatever information I find into one post. I was considering doing this with the Ibanez JEM a couple months back, while there’s plenty of resources out there I’d like to add in whatever trivia I’ve learned over the years (IE- Vai stating he couldn’t tell the difference between ebony and rosewood and how EVO has never had an ebony board). Just making the writeups more TGF-style than what you’d find on Wiki or ChatGPT.
 
DrewJD82 said:
I’m looking forward to doing a deep dive on Plexi’s and their history. Outside of knowing Jimi was one of the first to start using them like we use them now, I have no clue about which models came out when,
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This is a really good write up of the evolution of the 100 watt circuits. The 50 watt versions roughly followed, starting with the change to EL34 tubes, although some of the early 50w EL34 amps still had tube rectifiers. By Spring 1967 they generally follow the 100's but with lower voltages and two less tubes, so they are a little more "rounded" than a 100.


Edit:

This is a little less technical and also includes non-100's

solodallas.com

The Vintage Marshall Guide

This is my first article here at Solodallas.com. I hope this can be useful to all of you who are interested in buying old Marshall amps. (SoloDallas’ note: it is with pleasure that I introduce to you our already very well known friend Andrè, aka Jaiminho Pagina: he’s now a contributor of...
solodallas.com solodallas.com
 
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Chocol8 said:
This is a really good write up of the evolution of the 100 watt circuits. The 50 watt versions roughly followed, starting with the change to EL34 tubes, although some of the early 50w EL34 amps still had tube rectifiers. By Spring 1967 they generally follow the 100's but with lower voltages and two less tubes, so they are a little more "rounded" than a 100.


Edit:

This is a little less technical and also includes non-100's

solodallas.com

The Vintage Marshall Guide

This is my first article here at Solodallas.com. I hope this can be useful to all of you who are interested in buying old Marshall amps. (SoloDallas’ note: it is with pleasure that I introduce to you our already very well known friend Andrè, aka Jaiminho Pagina: he’s now a contributor of...
solodallas.com solodallas.com
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Thanks!! Bookmarked!
 
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