Marshall Lead 12 5005 mk1 vs mk2 circuit differences and comparison
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- เผยแพร่เมื่อ 17 ก.ย. 2024
- Here's a quick shootout between two versions of the Marshall Lead 12 5005.
My guitar is going in the two amps at the same volume (thanks to the Boss LS-2), and I'm switching the outputs of the amps to the same speaker with the little red and blue "sexy switch".
Light on on the switcher = mark 1 (on the left)
Light off on the switcher = mark 2 (on the right)
I'll post a more detailed description later on, in the meantime sorry about my english and my playing and don't hesitate to ask your questions in the comments.
Thank you so much! This is REALLY important lesson for any of us buying a 5005 lead 12, or just a vintage amp in general. I got nervous when I saw this comparison, because I bought an ‘86 mkII a few months ago. I was not aware there was as difference between the two. Wow! Huge difference! Also, I can attest, my mkII sounds just like yours. Crazy how loud it is on 2! 😂
Try it on a cab, you'll be amazed!
I just wasted 6:00 of my life to find out the Mk 1 is either not turned up as loud, or broken. Your ‘test’ is the only one I’ve seen so drastic.
Beautifully voiced.
The slight difference is also because of the camera angle. But there is a slight shift in midrange frequency there between both.
I bought one of these, turned out to be a MK2, years ago based on great reviews for the 5005 in general. Mostly glad I got what I got, though replacing the speaker is a popular mod and I'm looking into it.
Interesting! I actually always preferred the MKII. Now I understand why.
I actually disliked both, and now I definitely understand why.
Great comparison, got the MK1 built Dec 1982. Great amp, not very loud (I didnt know the MK2 was so different). I got my MK1 as a practice amp, so quiet is good. :)
Put an eminence in it and you ll get double up in volume with A Huge general sound -upgrade. It will allow you to use the clean of the amp with low gain and the amp will get fatter when used with high gain. I don’t understand why people are praising the original celestion in it as it s the crappiest speaker I ve ever played on, it just kill the sound and make the sound small, nasal and crappy. Put a good speaker in it and you won t believe your ears. I own 3 stacks och 2 lead 12 and 4 combos. The only one that sounds like crap is one of the combos that still has the original speaker. First combo I bought of those I wanted to put in the trash. But then I did get the head of the stack that I plugged in cabinet and I understood at once that the original speaker only positive thing is that it is original, nothing else, believe me try another speaker in it…
Even better : use it with a cab :)
Thanks for presenting this. Same transistors?
lovely Review!
Excellent effort, thanks!
You're welcome!
Very cool. Thank you!
I have a Vintage MK 2 sitting here. Works fine just needs 2 new Pots. Yes it is loud AF, and gets decent enough natural gain in a pinch (enough for some Maiden or Priest 😉)...I think I'll get the Pots replace and put it on Reverb or Craig's List. My arthritis doesn't allow me to play anymore. 😔
Have mkII made in 1984 - sounds a lot like yours!
Something is wrong with the left one
Hi. Thanks for your input.
My guess it that they might have changed the circuit while the unit still looked like a mk1.
That would explain how some people find their mk1 to sound like mine, and some don't.
Do you own a mk1 yourself?
@@cellardoorpns awesome when people don't answer huh ? Lol which version do you prefer sir? I'm thinkn bout buying a clone
My very first amp.
I'm dying reading the comments, and how people are claiming your amps are busted because they can't get anything more than a light Crunch. 🤣
They heard so much about these *'CHEAP'* Solid State amps from people who never really played one.
Your Mk 1 with the gain maxed on the high input sounds very strange. There is nowhere near the amount of distortion there should be. It should start getting saturated at just over 8 on the dial.
With or without the jack in the low input? What minute;second in the video?
@@Matlevodouze Without jack in low input. 3:27
@@Grim177 Hi. Sorry typed my last message too fast, and on my phone (and used the wrong account...) . I erased it. Maybe the lack of volume is misleading, but there is distortion with gain at 8, you can hear it around 4:10.
Maybe they changed the circuit even before adding the line out / HP output, I don't know !
Yeah, I also have MK1 and it sounds completely different than the amp in the video.
@@exp1968 Yep. Unfortunately this is not an accurate comparison for what ever reason.
These clipping amps aren't bad I have a couple old peaveys I cut into heads for less than one of the now overpriced lead 12s
Thanks for your video, but I think your MKI have troubles because mine sound different and better than your !
I have the head...I wonder which version it is?
Hi. I try to explain the visual differences between the versions at the beginning of the video. Do you have any headphone or Line Out on the right side of the front panel, just next to the power switch?
@@cellardoorpns right. It is the same as the combo then. Thanks
Which version so you have which one is better in your opinion ??
What is the difference between the high and low inputs?
On both models there's a bigger resistor in series on the low input : hence your volume will be lower.
But on the mk1 the big difference is that the high input has hard clipping to ground (à la dod250\dist+ let's say), and the low input doesn't.
You can even use the high input and just plug any jack socket in the low input and you'll get higher volume without the clipping.
Sorry if that wasn't clear in the video.
Old amps used to be made with 2 inputs so that a vocalist could share the amp with the guitar player and thus the low input was meant for plugging in a microphone which used to have lower impedance values. Then guitar players started noticing that by using the low input with their guitars as well they could get a much cleaner sound with more headroom as the amp would not start to break up as early as on the high input channel, this allowed the guitar player to get different tones and even better sounds from their pedals in conjunction with the low input channel or use the high input for dirtier sounds and lower volumes. Hope that helps.
I see only one schematic on the web, where is the circuit difference?
Hi. As I said, the mk1 has diode hard clipping (to ground), and the preamp's different, too. If you look up "Marshall lead 12 mk1 schematic" you'll find it first in google images (I'm on my phone rn, I'll send it later if you can't find it). The only official schem i could find online was for a mk2/3. Someone draw the mk1 schem by hand with a few minor mistakes, you can find that one too, it's in 2 parts : preamp and power amp, if I remember well.
Found it! There are many differences! Basically it seems the mk1 is designed to have more gain. Also in your video it seems it affect only the gain and volume. As the audio is not recorded well and TH-cam compress also, can you tell me if you can hear more top end in one version? Other frequencies differences?
@@marcomarchi2745 Yep, it sure appear this way (the schem was traced by me on exactly the amp you're listening to in the video). Sorry about the sound quality but if anything, youtube compression just minimizes the differences in this case.
The mk1 sure had more highs.
Even with the diodes out disconnected it has less gain than my mk2. Compared to my mk2 it lacked body and bass, and the highs were quite spiky, for a lack of a better term.
The main thing is that is was way less loud than the mk2, even with the diodes out of the way.
The interesting feature to me was this kind of fuzz-oriented characted that the mk2 doen't have.
Hope that helps, but remember it's all very subjective :)
@@cellardoorpns ok, my new project is to mod my mk2 to mk1, there are few values to mod, I will let you know, many thanks
Imam jedanog, ako neko hoce da kupi!?
Wow that dude just talked the whole time lololololololol
Yep. I guess it's more a technical comparison than an amp demo. I did strum once or twice though, but I'll edit that out when I have the time.