Friedman Plex vs Marshall SV20H (tech stuff)

Friedman Plex vs Marshall SV20H (tech stuff), modding the SV20H a bit to come closer to the Plex.
0:00 Intro & Tech blah blah
1:37 stock comparison
2:41 first attempt
4:46 second attempt

[@6120orange]

Well let's go! This is way more important than some football match or delirious old men debating

[@ChrisLeaton.]

I’ve been enjoying these videos the past couple days. Thank you very much.

[@duese888]

Glad you like them!

[@KelsterVonShredster]

Man that is one bitchin amp collection you got there!

[@luisalextorres]

great tones from both! weirdly i prefer the sv20 in the first comparison! i wonder if a simple eq adustment can make the plex match the sv20 in the beginning

[@rikshredder]

I own both. Friedman, wow, it takes the prize for sure but the SV20 is not too far behind. Love the mods you did here for the sv20. I think the mods improve the tone.

[@KelsterVonShredster]

Dollar for dollar I think think the Sv20 is better value but the Friedman def kicks ass too.

[@matsandersson8857]

Great comparison. On this video i prefer the Marshall SV20H stock. The Friedman sounds more kind of mushy. Did you play loud or use an attenuator since there is no master volume on the Marshall? I like Thin Lizzy a lot too!

[@lordgraga]

The Plex sounds a bit more bitey and “pissed” at both settings (through mid heavy phone speaker). I surprisingly preferred the SV20H on leads. Will listen on monitors/headphones later and see what’s up then.

[@fritzhieke7209]

you listen to it over your phone speakers? Are you insane? This is audio-blasphemous! ;-)

[@lordgraga]

@@fritzhieke7209 not all of us have a toilet built into our studio chairs mate

[@blackfrancis33]

Nice amp collection! What is your favourite plexi-style amp and how do you think the SV20 compares? I got one a couple months back and have only used it at home with an attenuator so far. Can't wait to try with a band and turn it up.

[@stephenkoch4188]

Trying to figure out why you need either when there’s a Soldano sitting in the back 😂😂. Seriously though, great video.!

[@fr201]

Because the Soldano doesn't sound anything like a Plexi.

[@duese888]

I just love amps and was curious. And most of my amps, no matter if bought or build either are just full clean sounding or have much more distortion or are multichannel amps.

[@davevanepp5087]

Put a pair of 6CA7s in the SV20, I did in mine and the improvement is dramatic, I know longer want to try modding it because I wouldn't want to change a thing about how it sounds after the swap.

[@stephenkoch4188]

Soldano sitting in the back ground - why did you even need to buy the Friedman or the Marshall? 😂 (I’m a fan of all three)

[@void_snw]

Hmm.. So somewhere in the SV20 there's more bass / less treble going through. Since the preamps are near identical, could it be the different power amp designs? cathode biased class A vs fixed AB as you said in the beginning? Any differences on the phase inverter maybe? Negative feedback taken from a different transformer tap?

[@void_snw]

I'm very curious to hear about this as I'm modding the SV20 quite extensively but lack proper experience, and one thing it does that's very "vintage" of it is have that softer top end. More like a softclipping overdrive rather than a fuzz, which modern counterparts seem to sound like, to put it into other words I guess. I'd love to find a way to give it that rough top end. I guess that's the bite you mention. Could it maybe be the transformer in the SV20 being a bit weak and acting like a high cut?

[@duese888]

Sure. Power amp makes a huge difference. I just wanted to similar results for my recording purposes. If you crank the Plex it eats the SV20 for breakfast.

[@duese888]

… and PI voltages in the SV20 are lower than in the Plex. Didn‘t look up the NFB in detail yet. May do soon.

[@void_snw]

@@duese888 hmm.. the PI is where a lot of the drive comes from iirc, the voltages being different there is surely one part of the puzzle. Could adjusting the resistors on it get a similar result, maybe?

[@jima1325]

What’s so special about the PPIMV on the Friedman? He says it’s different than others. Have you analyzed the circuit?

[@duese888]

The taper of the pot is a bit different. You can find some info in the description and comments to my other tech Plex vid

[@Tanax13]

Easy choice here in Europe to pick the SV20H. Sounds great and WAAY cheaper. €850 vs €3400 is miles apart for two amps sounding so close. Friedman's pricing in Europe vs competition is explaining why their amps are so far down in popularity/purchase statistics. If Friedman could release a 20W that's around €1300 (incl VAT), they'd see much more sales here. It's a small upcharge (€450 more, or around 50% more) to Marshall, but it's also providing benefits for that upcharge. Currently Friedman's 20W is €2000... more than double the price (235% more) of Marshall's studio series amps. I'm not alone in thinking that's not worth it.

[@soapboxearth2]

Great compaison . The marshall sounds alright. If you could get one used for a good price and mod it, then great. But the plex build quality is far, far superior, and I'd rather give Dave my money! That's a great sounding amp, and it will last much longer.

[@duese888]

Agreed. Was just trying to show some mods for the SV20 into the direction of a booteek amp.

[@soapboxearth2]

@duese888 they are definitely worth while mods !

[@aloproblues]

Hi, I want to know, how is the Signal chain. Which Amp/Cap Splitter do you use. An how Works the Recording? Micro? IR-Loader or not? Thanks.

[@duese888]

Amps into a simple 4 x switcher into an Isolation Box ( Grossmann) with 2 Mics (57 and SE VR ribbon) into Logic. Speaker is an old V30.

[@aloproblues]

@@duese888 Thanks for the answer, and which 4xSwitcher do you use. I have the same Grossman Isolation Box

[@duese888]

@@aloproblues www.thomann.de/de/tube_amp_manufactur_amp_switch_4_2_v2.htm

[@duese888]

Had others before like Palmer, Radial, Ampete… this for me has the best buffer. Not footswitchable though

[@aloproblues]

@@duese888 Is it possible to use 1 pedalboard with several amps without replugging?

[@fr201]

I have both and the Plex is a lot tighter. Did you figure out why?

[@duese888]

I‘d say due to the power amp design and voltages. Much higher in the Plex.

[@rocker8692]

I dont hear $2000 difference

[@alexjh3456]

So Marshall SV20 with 200pF = Friedman Plex for small money?

[@duese888]

… and a 22mF over the 820R of V2A - at one setting - somehow.

[@wolfgangfranken2041]

Marshall.

[@MadMax_1984]

troll comment of the day- why play a PRS in this video when there are 2 perfectly good Gibsons (1 custom?) in the background? what do you think is the best value amp?

[@LLVG83]

Because the DGT is epic, also much easier to play vs most LPs. I call it a stunt guitar.

[@duese888]

The pickups in the DGTs I own are less hot than in my three Gibsons, that‘s why I‘ve used it. But I have two other Plex vids with my LPs.