Marshall jcm900 (real) vs Marshall jcm900 (modeled by Digitech GSP1101)

[skibus69]

Irregardless, playing ANY modeled preamp THRU the amplifier it's modeling is going to give the same sound as the amp would, at least VERY close to it. Which make NO sense to even do it. Why would you buy a modeling preamp then buy say a JCM800 and use the modeled preamp and the 800's power amp? It's like wiping before you poop, makes no sense.

[strat1]

@skibus69 I play in two bands; in one band I use the traditional amp; in the other I go digital,GSP direct in the mixer. I see you are rather skeptical about the GSP1101;it's a great machine with great possibilities. I've used for 30 years the conventional amplifier, but now I'm evaluating the great possibilities of the digital world. Now,if i want, I can use a Twin pre in a JCM power amp; or a Orange pre, or a Soldano. Obviously we are talking about high quality gear, not Pod or Zoom.

[skibus69]

Are you or are you not cabled like this: Guitar---GSP1101---JCM900---Ma­rshall Cab?

If so, you are ALWAYS using the JCM's pre and power amp. There is NO way to NOT use it's preamp even if it's turned down to 0 it's still in the chain and gives some tone. You said you skipped the preamp stage, how? Watching the video all you did was change the channel on the GSP.

[strat1]

@skibus69 It's a peculiarity of GSP; if you connect with the 4 cables method you can choose, for each preset, to use the preamp of the GSP, skipping the preamp of the amp you are using, or to use the preamp of the amp, skipping the pre stage of the GSP; in this way you can use only the effects of the GSP1101. If you read the manual of the GSP all will be clear.

[skibus69]

I don't get it. If you're switching the digitech from the model to direct, then you're still playing THROUGH the Marshall JCM900 on BOTH "sounds". The tone is going to be EXTREMELY close because the amp is the last thing in the chain, so you still get the same tube response. AND the overdrive/distortion was still ON in the Marshall.

To do this RIGHT, you'd need to plug the GSP1101 into another amplifier and cab the A/B directly into the JCM900.

[strat1]

@skibus69 I try to answer despite my bad English.I switch between the JCM900 PREAMP and the same *simulated* preamp.Things that remains the same in both configurations are the JCM900 *power amp* and the cabs. If I test 1101+JCM900 pre+power amp versus 1101+another power amp (i.e. Rocktron Velocity) this is not the correct way, IMHO. I think that in your opinion you omit the fact that in the gsp1101+jcm900 configuration I totally skip the preamp stage of the jcm900,uning instead the Digi preamp.

[strat1]

@skibus69 This is a comparison only between the JCM900 real preamp and the same preamp simulated by the Digitech GSP1101.

The sentence "you're still playing THROUGH the Marshall JCM900 on BOTH "sounds" should be correct in this: "then you're still playing THROUGH the Marshall JCM900 POWER AMP on BOTH "sounds", because one path is

guitar->JCM900 preamp ->JCM900 power amp->cabs

the other is

guitar-> Digi simulated JCM900 preamp ->JCM900 power amp->cabs

Thank you for the interesting note.

[IronBroadsword]

Holy crap. Digitech made something I like! This is the first emulated unit that doesn't sound terrible to my ears.. and I have heard a lot. ^^

[ottawadrummer]

Marshall. Digitech. Marshall. Digitech. :D Nice demo The marshall sounds a bit more bassy and thicker.

[strat1]

@paulscape72 It's the power of rock'n'roll!

[Lossaavedra]

This is a great video. I always want it someone to do some video like this

[maowcat]

sounded almost exactly the same

[ojb197]

the difference was prominent especially in the first comparison, the digitech had more highs a less mids. you can probably compensate for this difference with an equalizer, or by pushing the highs down a little notch. But hey, you have a rack that mimics 120 amps or so, you have to admit that Digitech's done a great job getting you 97% closer to that many amps... for 600 bucks!!!

[ersemola]

i have digitech gsp1101..

i can notice in this video that gsp1101 is A LITTLE MORE CRUNCY... but very little,

it mean that for me, sound is the same, maybe jmc900 setting and gsp1101 are the same, but the same setting of gsp1101 can not to be the same as the jmc.. so maybe with another setting is the same. by the way gsp1101 emulated for me at 95%. compliments gsp1101..

[g37dude]

Hi, it would be nice if you could record a demo of the GSP1101 effects without the cab simulation. There isn't a single video of the GSP1101 demonstrating the "effects" only. I have subscribed to your channel just in case you decide to do something like that. Thank you.

[strat1]

@g37dude I'll think about it, it can be a useful video. Thank you.

[jskim1]

digitech sounds little harsher to me. but, one thing i learned about modeling effects - when i stop comparing them to the originals, i tend to like them more, meaning, they have good sounds on their own until you do a side-by-side comparison.

[g37dude]

There is a difference, a negligible difference. I am still undecided between this processor and the Nova System, it is a hard decision.

[strat1]

@g37dude are two very different machines, and what you can do with the Nova, you can do with the 1101, instead not all you can do with the 1101 you can do with the NS.

[cesarggonzalez]

come on...nova is no way as good as gsp

[Equestional]

marshall sounds better if u close ur eyes

[IcechickenSr]

Thanks so much for this comparision man!!! I have the digitech RP255 and got this sweet Michael Angelo Batio sound using some light slapback delay, the VERY SWEET digitech Dual Chorus, JCM900 amp modle, and a GUY overdrive pedal (whatever that is lol) I've been a little dissapointed with the touch sensitivity with my 255, it dosn't have any it's full attack to the strings or nothing, Contd.....

[IcechickenSr]

@IcechickenSr So I thought I wonder if I bought a JCM900, got the dual chorus pedal, some good delay pedal, a guy overdrive (again someone please tell me where I can find this Guy overdrive pedal) and have the real setup so I can get some higher quality sounds if i'd get similar sound. After your demo of the REAL jcm 900 I think it may be a good move! Appreciated your demo it helped me alot, thanks man! Cheers, IC.

[alconsirra]

the marshall sounds better

[Josephandalice]

I want to hear full on distortion metal sound.

[Account091027]

ok, sounds very similar. i'd say the digitech is a tiny little tad more nasal.

but after all you can't really judge by a recording, even less by a recording this bad.

judging by only this video I'd say everyone who buys a 'real' top must be stupid.

[spacelord12000]

Great Video, Really sounds like the marshall!

[mrdanieme]

Nice video... I don`t care about your roof... lol

[CudBucket]

Let this be a lesson to the kids: Tune your goddamn guitar before posting a vid on YT.

[herokight]

I honestly couldn't tell much of a difference...

[remotecontrol1324]

Digitech is a bit more hash and it seem to have a little more attack on the clean channel.

In the distorcion there are something in the high end of the digitech that is diferent...

If you gave me a sample of gsp1101 and you told that was a jcm900 I would believe without a doubt...

[cristosuperstar]

come si chiama quel pezzo degli acdc (se non sbagliooo) che fai negli accrodi col marshall.

Scusa l'ignoranza

[strat1]

You shook me all night long

[abradfordajb]

Are you playing through the same cab for both? If so, that will have a huge influence on the final sound. Also, I'm able to configure my GSP effectively for several different signal paths - including running straight into an amp's front end - with excellent results. Overall, i'm not surprised that you're able to match the sounds as well as you've done (particularly in your small space), because the GSP is a remarkably versatile device. Rgds.

[strat1]

@abradfordajb Thanks for the comment; yes, same cab for both

[awesomejohnnet]

thank you for taking the time to make this.

[angushetfield13242]

YOU SHOOK ME ALL NIIIIGHT LONG!!

[bnaa2008]

Great video. I just got a GSP1101 and am still tweaking with it....so much to do. Thanks for the comparison. Keep on Rockin'!

[tony93666]

awesome - I'm totally getting the GSP1101

[Activethrasher00]

holy crap! thats incredibly close. real seems to have a bit more gain and voltage sag

[akaboo69]

wow very close in sound

[JerichBlakk]

great review thanks...But dude what is the deal with your ceiling? above you?

[strat1]

lol... it's a old old ceiling; and what you see in this video has collapsed two days ago (strong rain...)

[zurm3]

what were you playing the digitech through

[strat1]

The path is:

Allparts guitar with DiMarzio Super Distortion bridge pickup--> Digitech GSP1101--> MarshallJCM900 - Marshall 1922

Comparison is done enabling/disabling the internal preamp of the 1101.

On pre enabled the path is:

gtr-->1101 preamp --> JCM900 power amp--> speakers

on pre disableb is:

gtr-->JCM900 preamp --> JCM900 power amp--> speakers

[DanVAVT]

Yeah, I have the gsp1101 and also find its modeled sounds incredibly realistic!

BTW how did you switch to the real amp by tweaking the edit/select knob???

[strat1]

Hi. I did switch by alternating the pre (internal-external)

[metalheart64]

veramente simili, ma YT non fa tanto testo PS la chitarra è figherrima :)

[plexi59]

...noù volevam savuàr l' indirìss ...

[strat1]

gne ... gne ... gne...