Marshall SV20 Channels Jumpered With Boost

Just a quick demo of the various amounts of gain you can get from this amp.
I had a request for a video with it jumpered and thought it would be a good video to help people who are interested in plexi style amps and want to know how much gain you get with different ways of using them
Signal chain:
Harley benton SC400
Tonerider alnico ii classics pickups
Boss SD1 overdrive
Marshall SV20
Fryette Power Station
T.C Electronic H.O.F Reverb (in the loop of the power station)
Marshall 4X12 Cab With Celestion G12M Greenbacks
Shure SM57 on the speaker
T.bone RB500 a few feet away
Focusrite Scarlett 2i2

[@randomguitarnote8887]

Man, i bought the JCM version which I like but these plexis is the sound I hear in my head when I play.

[@angusorvid8840]

One of the best sounding Marshalls I've ever heard. And when you kick on the SD-1 it's totally killer.

[@howabouthetruth2157]

ABSOLUTELY!!! I don't care what anyone says, for me personally, this is the best damned amp Marshall has ever made. I gigged professionally for years in east/central Florida. During that time, I had a 50w JCM 800, and later, a 100w JCM 900. ( the ONLY reason I bought the 900: a music store in Orlando offered such a huge discount, I couldn't pass it up......I later sold it, because it was just TOO much ) I demo'd a couple of these SV20's recently (the head/cab and the combo ), and I swear to you, it totally eclipses the Marshall amps I had, for dynamics/touch sensitivity, and real USABLE volume with the much sought after tone, in most venues. In many of the clubs, by the time I backed my volume down to a tolerable level on my 50w JCM 800, it lost most of it's headroom. Ya get to keep that with this little Plexi. It has sweet tone & really nice gain ( that pedals can increase if needed ), yet it cleans up nicely. Most touch sensitive Marshall I ever tried. Even at 60 yrs old now, many of us can relate to the old saying: "I was born too late"......but this little Plexi totally reverses that philosophy, lol. If only this little amp was available back in my clubbing days............SIGH.

[@Music_is_fun]

@@howabouthetruth2157 and the best part is it’s affordable😎

[@howabouthetruth2157]

@@Music_is_fun Yes, I'd say it's both a fair price, and fairly affordable. Just my luck though, they make this killer amp long after I retired from the music/club scene.........lol.

[@scottmurphy4719]

@@howabouthetruth2157 your never too old brother, get out there!

[@howabouthetruth2157]

@@scottmurphy4719 Thank you for the kind words. Unfortunately, the club scene here in central Florida is a fraction of what it used to be. Also, I did it for so many years, I just got tired of it. But I'll never miss the performances & the music itself. Lastly, I'm so busy still working nearly full time, while looking after my elderly mom, I just don't have much free time.......for now anyway. God Bless you.

[@scottfamily7644]

Sounds killer, all classic Marshall sounds everyone loves.

[@monkeymonkerson]

Perfection! How could you ask for anything more than this tone? You can NEVER get rid of this setup! got the Studio 800 but now I want this!

[@angusorvid8840]

This is why I've always preferred the British tradition of amps, centered on Marshalls. It's that natural reactiveness. The problem I have with hyper-compression American/Boogie style amps is they lack feeling. They are all jumping compression. With a Marshall you feel a genuine connection between the pick hitting the strings and amp. This is a good reason why so many classic guitar tracks were recorded on Marshall, why they're the choice for live performance. Now that Gibson bought Mesa Boogie, we can expect the cost of this "lifestyle brand" to rise and rise while the value sinks. I'll stick with Marshall. Easier to repair as well.

[@KauffeyBean]

You said it

[@Iskaral_Pust]

I love my Boogie Mark V but you're not wrong. There's something special about a well configured Marshall.

[@liveatalexs]

I have a gorgeous hand-built Princeton Reverb & this SV20H. I love them both for different reasons, but I totally agree about the lively reaction between pick, strings and amp. I also love the natural clean compression of a Fender, sometimes you need the slick approach.

[@westbayk2156]

My 900 didnt shine until I ran it through my Mesa cabinet.

[@InVougeProductions]

Got a boogie and marshall. You ain't bout that eas to repair shit!

[@popeman4371]

i always wanted to try this jumper idea with my band mates risson 100/200 lead your sound is very kool

[@MacawAviculture]

After watching hundreds of videos on the various vintage, reissue, and Studio Series Marshall amps, I finally decided on the SV20. I also use the SD-1, and a Boss RV-500 through the effects loop. I have never heard a better sound for classic rock and blues! Great video, thanks for sharing!

[@mattrobinson]

Cheers mate, I’m sure you’ll be happy with the SV20, I’ve never had a better amp tone in my life and I’ve had so many amps over the years.

[@BrettPapa]

Sounds great man!

[@mattrobinson]

Cheers mate

[@alphamilkrecordings8974]

Dude. I've owned this amp for 2 years now. I've loved it the whole time, but I have to admit, it never really occurred to me that use those settings because the highs and mids and presence are so low. I tried it and I've heard the BEST tones I've ever coaxed out of this amp. Due to the amps wattage, it always sounded a little bit mid-rangey but I thought it was okay..this is how to get a good bass balance. Lovin' my sv20. Thanx dude!

[@vicferrari89]

Great demo. Nice playing. I look for lead tones when searching for amps. Most amps can do the crunch or heavy crunch stuff. I own this and I own the DSL20. I like the DSL20 better. The DSL20 is more versatile IMO. The SV20 has a unique crunch power chord thing going on that I like (Kansas, Free/Bad Co, Foreigner) but the workhorse amp with the ability to sound very close to an 800, the DSL20 is the one I think is the killer of the Marshall minis. 1/2 the price, not M.I.UK. but Vietnam. SO what. AT least its not China made.........(wait.....my iphone is made where!!!???.........)

[@mattrobinson]

@@vicferrari89 ha ha, I had a dsl 100 years ago and found it compressed and fizzy. It’s all down to how and what you play though isn’t it. I’ve found the older I get the less gain I need ha ha

[@littlechrisvanhalen8783]

Very Van Halen sounding. Great sound man!! I get the Combo .. Eruption time!

[@divebomb99]

No yapping. No bullshit. All substance. Thank you.

[@Vinceyboy103]

I’ve lost count how many times I’ve watched this vid, your playing and the head sounds so damn good!! Just got myself a SV20H and a greenback loaded cab, got the fryette coming in the mail. My EVH 50 watt head is up for sale. This is the sound I’ve been looking for!

[@mattrobinson]

Congrats, it’s a great set up. There are so many great tones in this amp from clean to high gain. Best amp I’ve ever had for sure

[@jahjah67]

The best tones I've heard on YT of the SV20. Thanks for posting

[@barneywewer954]

This Amps and the Silver Jubilees are the best sounding Marshalls in my Opinion. The Tonerider Alnico II Pu's and this Amp&your Fingers let the Harley Benton sound like a 1500Dollar Guitar

[@kenaiello4851]

jcm800 also

[@eyedunno8462]

Channel jumping (parallel operation) reduces gain due to the miller effect. It adds "body" simply because there's different bright cap values per channel volume pot but effect that dissapears when you crank the gain. It's most useful when you have split cathodes for each input - one being the "Marshall" 2.7k/.68uf and the other being a "Fender" 820ohm/25uf. THEN you'll really get some added body from two distinct voicings. Cascading the channels (series loop) is where you send the input of the first channel back into the other for more gain - that's what old-school Marshall guys did to unlock all of the gain potential within the amp. You loose a channel and the volume now acts as preamp gain for the other, but it's a Marshall so who cares? That's what the guitar volume is for anyways

[@andrewwest7875]

Apologies if I missed it, but what speakers are you using? Definitely relevant information.

[@mattrobinson]

Hi Andrew, no problem. Im using Celestion G12M Greenbacks. The full signal chain is in the description.

[@aculie]

Your jam was perfect! Very beautiful

[@mattrobinson]

@@aculie Thank you

[@cardbored_]

This actually sounds great for a Marshall built in recent times.

[@howabouthetruth2157]

That's because they really tried to copy the original Plexi in every way they could, but in a smaller amp of course.

[@lukaa11]

Hi man, great playing and sound. Mini plexi sounds so great in combination with Frayette. Please you are using cab with 4x Celestion G12M (Greenbacks) 16 ohm in parallel or serial wiring? Which port you use on the amp and powerstation, 8 or 16? Tnx a lot

[@mattrobinson]

Thanks, yeah 4 greenbacks with the standard Marshall cab wiring. It’s a 16 ohm cab and I use the 16 ohm output on the fryette. Hope this helps Cheers

[@Unusednickname_1970]

Fantastic demo! I recently picked up an SV20H and I’m very impressed. It has THE Marshall tone and feel in my opinion. One of the best amps I’ve ever owned, and I’ve had a bunch.

[@mattrobinson]

Cheers, yeah it’s definitely the best amp I’ve ever played

[@joshmuz9018]

Man I love every vid you posted of this amp so much I'm gonna get one with power station too. So good man

[@johnmarshall3903]

One of the best demos on you tube demonstrating this amp. The Fryette is the way to go with any vintage Marshall amp.

[@mattrobinson]

Thanks man

[@billybudd45]

Sounds pretty good

[@jeffp5730]

Your playing matches the amp perfectly. Sounds great man!

[@mattrobinson]

Cheers mate

[@dandayton3795]

I enjoyed this.

[@WorshipFog777]

Holy f***, sound incredible!!

[@Paul-dw2cl]

Holy f****** s***

[@jeffreybabino8161]

Sound great what is the price of this amp dose anyone know thanks love the sound 🎸

[@EdBenji]

Matt, I reckon you've nailed Gary Moore's tone...

[@mattrobinson]

Cheers mate

[@GazP23]

Absolutely sweet tones there. Great playing too. Thanks for sharing

[@12breacher82]

Really nice demo. I still think it has some great dynamics for higher gain settings. This is loads different compared to the modernized, sometimes sterile rock/metal amps in general feel (not a bad thing; they all have their place). The attenuator is a must though since you really have to drive these little guys just like the bigger versions. The depth addition too; I’ve always hated all the low end sucked out of an amp by an OD. The Lone Wolf Audio Burning Spirit eliminates that with a 3 band EQ, and several modern pedals like the Direwolf really help add bass back and still keeping it tight. But if you must have that SD-1 flavor, you’ve got the ideal setup. Again, nicely done and thanks for posting.

[@jakebenigni]

awesome

[@shughy1]

Just can't beat that Marshall sound, all the other models sound too mushy in comparison to the plexi

[@Roberto_Garcia_]

CHOICE

[@dwscott343]

Sounds great! Your playing is fantastic!

[@mattrobinson]

Cheers mate, very kind of you

[@Cherry_Sunburst]

Fucking great, man...JUST FUCKING GREAT!!!!!!!!!!!! Cheers.

[@mattrobinson]

Cheers

[@wideopenmusic4160]

Awesome demo and killer tones. Now I am thinking about buying one.

[@mattrobinson]

Cheers mate! go for it, they are awesome. Hit it with a good amount of clean boost and you can get some really high gain and aggressive tones too. I’m going to do a video on that next

[@tonechain_com9077]

Killer tone and great playing, Matt!! 🤘 And exemplary documented signal chain. For future reference, we have documented your gear/settings and linked to your video at our new site. Hope that's ok with you!

[@zach5500]

Thing sounds absolutely great. It's about damn time Marshall released a "plexi" voiced amp that can be accessible to people who don't have a ton of money or a soundproof studio to play in.

[@yomuthabyotch]

uhh they did. the origin series.

[@pipespeeps5349]

@@yomuthabyotchthat sounds like booty

[@richardcandia3224]

Yeahh

[@PIlotrcm]

Lol, good know I’m not the only Marshall user to who discovered the Boss SD-1 pairing.

[@maestroone1237]

Great demo and playing Matt, these really are a fantastic amp, no pedals required just like the old days, it's all there in the volume control on the guitar, but stick a TS or similar in the front and it really sings as sweet as anything, back it right off and the cleans are there for you as well, i used the big versions back in the day but these 20w compact heads are once again a great gigging amp for us worn out old fellas, you really demonstrated the tones beautifully 👍

[@mattrobinson]

Thank you, thats actually exactly how I love to use the amp. Very simple and organic compared to tap dancing with pedals and channel switching.

[@roderickhager8154]

My next marshall! Had to rewind the ripping funk.🤘💪🎸

[@BenJ2827]

Fantastic demo -I love mine but have to use it with a Two Notes Captor as an attenuator because even in low power mode its enough to rip your bollocks off!

[@mattrobinson]

Cheers mate, yeah it’s louder than it looks isn’t it

[@stringlocker]

I wonder what it would sound like with a boost pedal in between the jumping cable.

[@klanggrenze3905]

Theese tones a killer! 🔥 Played exceptionally with a Harley Benton Les Paul. I like that... And you really know how to dial the tones in. I also own this amp but I am not quite there yet. There is a fine line between "not enough gain" and getting a bit flubby and fuzzy. Will continue chasing the tone tomorrow... Thank you for the inspiration... 🙂 m.

[@BrenQ99]

I’m Mesa Boogie all day long…. But that?? EPIC!

[@timbuckxxi9690]

Nice....But still loving my favorite The Black 2550..

[@metalbeavis8429]

This is the amp that I need for classic heavy metal \m/

[@ppplll1122]

Sounds phenomenal.

[@barters8124]

Currently saving my pennies for a fryette power station. Sounds great. And this is pretty much how I run my sv20 too. Sounds awesome.

[@juceliodelmondes1755]

Can I get a similar tone using a marshall 1987x?

[@mattrobinson]

Yeah, probably even better as the sv20 is basically a smaller more budget friendly version of the 1987x

[@juceliodelmondes1755]

@@mattrobinson great!!! Thank you

[@somerandomdudelonelyAF]

You know i played on of these in a guitar center and I didn’t like the sound but now hearing it with a bost it sounds a lot better

[@PainterDans]

Very pagey there ....😎👍

[@MrScrofulous]

I have one at home, haven't played it for six months, cos I've been a border refugees here in Oz North Korea. Get home this weekend, and I'm gonna party on this sucker for days. I use a volume pot in the effects loop , to create an instant PPIMV, works a treat,

[@Cesar0787]

this amp sounds like a real vintage amp

[@monstruonegro05]

Best sounding SV20 video I've seen and great playing!!!

[@mattrobinson]

Thanks, very nice of you

[@denisgetmanskiy7665]

Beautiful jam

[@MojoMedicineMan]

👍

[@TheGuitaristChannel]

Sounds killer! At what volume was this recorded at? I see you were using the Fryette Power Station (expensive bit of kit) costs more than the amp itself. I’m sold on this amp and getting a cheaper attenuator, how much of this was down to the quality of attenuation from the Fryette? Hope the cheaper ones will do the job just as well. Cheers

[@mattrobinson]

Cheers mate, yeah it’s definitely the best amp I’ve ever played, the honeymoon period has never worn off ha ha. I bought a cheap attenuator before getting the Fryette and hated it, totally changed the tone of the amp in a bad way so much so that it would be better with an amp that sounds good at low volumes like a DSL etc. The fryette makes literally zero difference to the tone even at whisper volumes that I record my videos at. If I used my iPhone to record the videos you would hear my strings louder than the amp. It is an expensive attenuator but the Marshall is cheap for what it is so the whole setup still ends up costing less than most boutique amps or even a good 100w plexi that I’d never be able to crank anyway. The fryette isn’t really an attenuator as such, more of a speaker load and 50w valve re amplifier and that’s a big part of the reason it works so well with a cranked amp.

[@Axess-sv8nq]

That amp is GODLY! 😲😲

[@reneotten7376]

Best sounding demo of this amp I've heard so far. And I can't believe the guitar is a Harley Benton! You only swapped the pickups?

[@mattrobinson]

Cheers mate. Yeah, they are great pickups though.

[@reneotten7376]

@@mattrobinson yes PUs are most important in the guitar signal chain. Are they like PAFs?

[@mattrobinson]

@@reneotten7376 I agree, yeah they are basically Paf’s. They’re called tonerider alnico ii classics

[@VeeeeryyyFaaaastSlooooth]

Great sound and playing. How does it sound on low volume for apartment bedroom playing? Is it as fizzy and weak as the DSLs?

[@mattrobinson]

Cheers mate, it’s way too loud even at it’s lowest for apartment volume. At it’s lowest volume it’s just a clean tone though because the volume pot is the gain pot. I had a dsl years ago and it sounded nothing like this amp at any volume but you could get a passable tone at very low volume even. It depends what’s important to you really. I wanted a no compromise cranked plexi tone at very low volume so to me it was worth the £700 extra for the fryette power station.

[@VeeeeryyyFaaaastSlooooth]

@@mattrobinson So attenuator is a must, makes sense. Thanks for such in depth answer.

[@lifeinlimbo2186]

That was delicious. Thank you

[@barneywewer954]

Great sounding Amp and Playin

[@rodrick412]

You play very well, and great tone!!🤘🤘🤘

[@mattrobinson]

Cheers, kind of you

[@masteryoda498]

That sounds great!, great playing. I have the same amp, bought it back in October 2019, the Rolls Royce of Marshall’s.

[@mattrobinson]

@@masteryoda498 Cheers mate, yeah definitely the best amp I’ve ever had

[@stevehughes1510]

I'll try a 12AY7 in V1 when I get mine, should even the amp out a little.........we'll see. Thanks Matt.

[@stevehughes1510]

Problem solved. As above, I found the High Treble channel was excessively noisy, hissing, so I got my amp man to change the 4.7na bright cap to a 100pf, much quieter now thank goodness.

[@ajlsrv5490]

Now that is the sound of rock and roll! Great playing!

[@mattrobinson]

Cheers mate

[@auntjenifer7774]

@@mattrobinson soaring playing ! BTW what guitar were you playing here !? A Les Paul maybe !?

[@mattrobinson]

@@auntjenifer7774 Thanks mate, yeah it’s was a Harley Benton les Paul copy with Tonerider alnico ii classic pickups

[@gregrogers2611]

@@mattrobinson Wow! It sounds great!

[@christopher.k.guitar]

Those small brothers and sisters are kicking out some serious tone

[@erickchba2]

Jesus, what a tone! Very "brown sound ish", especially with the SD-1 and the Greenbacks. I think most people would agree if I say that this is pretty much what THE Marshall reference tone is supposed to sound like.

[@jademartin1982]

That is one of the best tones I’ve ever heard!! sold

[@martin.cloutier]

Hey Matt thanks for the requested test 👍

[@guitarfreak1970]

Sounds great!

[@ericroyals8819]

Great tones in your demo! Sounds killer! One thought I’d like to propose to you: I know from building and playing Super Lead amps for years that because of how the presence control is wired into the circuit, it has a big influence over the amount of actual gain you get out of the amp. I’ve not looked inside one of these 20w amps from Marshall yet, but I’d bet the EQ is structured the same way as their classic NMV amps. You dimed the treble volume at one point and said “this is the most natural gain available from the amp without a boost”, but your presence knob never went higher than 4 or so in the video. Just for your own experience, I’d suggest bringing that presence knob up higher around 7 or 8 (or as high as you can stand it, as I’ve come to say)... you’ll hear a lot more natural gain come out of the amp... might need to keep the treble lower, and boost the mids and lows (or blend in even more of the normal channel, or just roll the tone knob of your guitar back a bit)... but you might like what you hear. Also-love the SD-1 usage here. I do the same thing. Great classic sound. Rock on, man!

[@mattrobinson]

Cheers mate and thanks for the tips. I’ll definitely try that with the presence. Never realised it affected the gain

[@alanroughley8319]

In the 70's I played through a 50W plexi and found that the characteristics of the space I was playing in affected the presence quite a bit. In a big empty hall (boo hoo, no-one came to see us) having it at 8 would hurt my teeth, whereas a smaller crowded room (whoo hoo) it was fine. Dunno about the 20W tho' I'd be interested to find out. I'd also recommend more use of your guitar volume than you'd use on other amps. Great demo.

[@axeaddiction796]

Nice tone

[@digitalreign7485]

Nice playing man....really showcases the amp. Exactly what I was looking for in regards to tones out the amp.

[@mattrobinson]

Cheers mate, it a great amp.

[@melexdy]

Great video, what I don't get is how the 2 channels work with the pre amp. Does one channel push the other like a boost when the amp is jumpered or do both boost the volume in the power amp?

[@mattrobinson]

I’m not actually sure, my only understanding of it is that if your plugged into the treble channel and jumper to the normal channel you can blend the normal channel into the sound adding some low mids to the tone. I’m not sure if your getting any more gain or if it is just perceived gain from adding mids. You also seem to lose some dynamics and touch response too so it’s not something I use for everything.

[@yjmsrv]

Post SD-1 is just awesome! Great tone- I'm subbed

[@mattrobinson]

Thanks man

[@KelsterVonShredster]

Nice riffing man....any suggestions on how to learn those licks???

[@mattrobinson]

Cheers mate, I’m not even sure what I’m playing myself ha ha

[@richardsthx1138]

Just traded for one and this video makes me want to acquire a PS2 so I can really crank it.

[@mattrobinson]

I can definitely recommend the power station 100%. The amp would be useless to me without it and it lets me have any sound at any volume. The amp starts sounding good at around 1:00 on the volume to me and that’s crazy loud without the power station. You also get to run your reverbs and delays through the loop on the ps so you get studio quality fx that aren’t getting jumbled by the power amp distortion of the Marshall. It’s expensive but worth every penny if you can afford it

[@rocknrollrich1]

Awesome playing and tones

[@bgingras05]

This sounds glorious!!

[@Iskaral_Pust]

Sounds amazing. I'm presently stuck between this one and the JCM 800 one..

[@mattrobinson]

Cheers mate, I don’t think you can go wrong with either but the sv20 has a more classic and natural sound to me

[@joec1360]

Killer demo. killer tone, killer riffs!!!! Righteous!

[@mattrobinson]

Cheers mate

[@kenaiello4851]

Normal channel with bleed through it you want a little thinkness sounds killer

[@stotten70]

BBRRRUUUUHHHHHH!!!! 🤘🏾😝🤘🏾

[@masteryoda498]

Great amp, and great playing! I bought the same amp in October 2019, the Rolls Royce of Marshall’s.

[@TheNorthernChris]

Hey, great tones and great playing. Would you say this amp is loud enough to gig live without being mic’d up? I’m talking about small pub gigs. Drummer, bass and another guitarist.

[@mattrobinson]

Cheers mate, yeah definitely loud enough

[@jasonbates2687]

Awesome, mine will be here on the 17th, I cant wait!

[@rickymcu]

Got-ham that sounds so good!

[@z3pp9]

Great! This is the real Marshall sound.

[@michaelw5010]

excellent video. really enjoyed your playing as well!

[@mattrobinson]

Cheers mate

[@jasonrogers7318]

That's a great tone man! Cheers 🍻

[@mistergamba80]

good player!

[@mattrobinson]

Cheers mate

[@claudiocruzat8777]

don't want to be salty BUT lets admit it. There are many pedals that sound literally the same. Sorry but facts are there. And very cheap.. blame technology, not me.

[@mattrobinson]

Yeah we all know you can get pedals that get close but there is more to an amp than what you can hear in a KZbin comparison. I started on modelers and pedals but was never fully happy with any of them. I’ve ended up sticking with real amps and have no interest in something that sounds ‘like’ an amp. I don’t feel the need to blame technology 😂 I love my amp and my sound thanks 👍

[@chrisjones8977]

Great demo and great playing!!

[@mattrobinson]

Cheers mate

[@jeffreybabino8161]

This sounds bitching🎸

[@richard66754]

Mine will be here this week. Very excited! Years back I had a Reinhardt 50 watt plexi clone, and have regretted selling it ever since.

[@mattrobinson]

Congrats on the new amp mate 🤘

[@christopher.k.guitar]

Great tone man! Love it!

[@jdanieltc]

Can you get those plexi tones at bedroom levels with the fryette power station? I had an universal audio ox, and it sucked my tone, so I sell it. Is the fryette power station? does it suck tone too?

[@mattrobinson]

All my recordings are done at bedroom volume. You can get the volume whisper quiet and it still sounds the same to me.

[@JasonAyalaSpare]

Great video mate 🤟

[@mattrobinson]

Cheers mate