The Official Marshall Studio Vintage Thread Sv20h

Discussion in 'Marshall Amps' started by Michael Roe, Jan 26, 2019.

  1. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    15,132
    Likes Received:
    12,633
    I wonder what the SV20H would sound like through a greenback 2x10 cab? :hmm:

    Does one exist?
     
  2. Highgear

    Highgear New Member

    Joined:
    Oct 24, 2019
    Messages:
    4
    Likes Received:
    13
    Hi ....i love the SV20H ....but since i only play Channel 1 ( and love it for Rhythm on 4 and for Lead on 6-7 ) .... is there an easy way to mod the second channel so, that it is similar to Channel 1 ? ...then i could switch with an AB switch between Rhythm and Solo ...that would be cool ....thx ....
    btw , i changed the V-Type of my 1x12 Marshall Cab into a G12H30 Anniversary and i like it far more ....
     
  3. Mcentee2

    Mcentee2 Member

    Joined:
    Jan 17, 2020
    Messages:
    82
    Likes Received:
    54
    Location:
    York,UK
    I have posted over in the tech forum, but has anyone tried the ehx 6ca7 in a Sv20h?

    If so, what spec matched pair did you get, ie ma number ?
     
  4. lp1987x

    lp1987x Well-Known Member

    Joined:
    Nov 9, 2018
    Messages:
    98
    Likes Received:
    302
    Location:
    Defiance, OH
    It could be done but you'll only notice a difference in gain, not in volume. Also, from what others have said when modding these, the traces on the pcb are very fragile so any modding must be done with extreme care or you may end up needing to convert it, at least partially, to be handwired.

    Instead, I'd recommend a good boost in the front. Anything from a clean boost (Spark, Pickup Booster, et al), EQ (I've had great luck with a Boss GE-7), or Klon-type (Tumnus, Soul Food) work great for pushing the gain up a bit without coloring the tone. Of course, people have been using Tubescreamers for decades to boost Plexis but they do color the tone some.

    The G12H is a great speaker. It was the favorite of many when I did a speaker comparison with my SC20C. However, it is a loud speaker, reading 5 dB louder than the Scumback I compared it to.
     
  5. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    15,132
    Likes Received:
    12,633
    Sounds like a good idea! I'm using a boost pedal in the loop for solo volume boost, works well.
     
    Mitchell Pearrow and tce63 like this.
  6. marshallmellowed

    marshallmellowed Well-Known Member

    Joined:
    Jun 26, 2009
    Messages:
    3,957
    Likes Received:
    5,111
    Personally, I wouldn't mod the amp for that reason. If you can get what you need, by just turning the channel volume from 4 to 6, I would think just using your guitar volume would accomplish the same thing. If you lose treble by turning your guitar volume down, look at installing a treble bleed circuit on your guitar. My 2 cents.
     
    Last edited: Jan 17, 2020
  7. Shane Stevenson

    Shane Stevenson Well-Known Member

    Joined:
    Oct 17, 2019
    Messages:
    260
    Likes Received:
    717
    Out of all the amps I’ve owned this one plays best with using my guitar volume. Try getting use to doing that if your not already.
     
    Mitchell Pearrow and tce63 like this.
  8. G the wildman

    G the wildman Well-Known Member

    Joined:
    Feb 7, 2016
    Messages:
    587
    Likes Received:
    679
    Location:
    London UK
    Yes I agree the guitar volume works fairly well providing you do not need to play quietly. I took mine to my guitar club this week without the attenuator. It stayed on 5 watt, and controlled well with the guitar. The tone knobs are also very effective.

    I played Albatross with some reverb it was gorgeous.

    For ease I play my dsl5 a lot. When I go back to the SV after it is sublime.
     
  9. Highgear

    Highgear New Member

    Joined:
    Oct 24, 2019
    Messages:
    4
    Likes Received:
    13
    Yes .... you´re all right , i also play a lot with the volume pot on the guitar ... i always tend to have an amp on ACDC/SRV Crunch and bring it down with the volume pot from the guitar to clean .....and in the other direction with a Clean boost or KOT to a Lead Sound .... but i thought about it, because the amps takes pedals different if the Gain is on 4 or on 7 ... so if it would be only 3 caps/resistors to change on Channel 2, why not having that option ... because like that the Channel 2 is useless for me and why having a useless Channel if it could be useful ..... btw, i have 2 of these heads and one for sure stays original .... thx
     
  10. Highgear

    Highgear New Member

    Joined:
    Oct 24, 2019
    Messages:
    4
    Likes Received:
    13
    btw... my Top 7 pedals in Front of the SV20H are for the moment: Tonefrerak Naked, Tonefreak Azalea, Honeybee Cleandrive, Rodenberg 707, Analogman KOT, Kingtone Bluespower, Barber Direct Drive ....
     
    Mitchell Pearrow and tce63 like this.
  11. Bonedaddio

    Bonedaddio Member

    Joined:
    Feb 27, 2010
    Messages:
    65
    Likes Received:
    88
    Location:
    FL, USA
    Still totally love my SV20H; I’m close to swapping it into my live rig now.
    It’s true you do need some other gear with it, but the sound is worth it, so very, very worth it! But only if it’s what you’ve heard in your head for oh say, 50+ years! Such a touch-sensitive, guitar-volume sensitive, edge of breakup to full-on overdrive engineering master work! Or maybe they just got lucky?!!?
    My setup is guitar>tuner>wah>TC Spark Boost>treble channel jumpered to normal channel.
    Loop is send>volume pedal (dialed back just enough not to overload H9 input)>H9>return.
    Output is 5W into a Minimass (using the treble switch if volume is crazy-low) into a Sourmash 1936-style cab w/Celestion 70/80 and WGS Veteran 30.
    Just amazing tones at really manageable levels. The H9 does require some taming of the loop levels, I’ll replace the volume pedal with a volume box, but if you play with effects, this a hard setup to beat.
    Kudos to tce63 and Scozz, I have a bunch of od-ish pedals n 10 band eq pedal, but hadn’t heard of the TC Spark, with the 3way toggle. I own one now, it’s the best way I’ve found to get that solo boost without sending the H9 into overload spasms.
    I am such a gear whore, now I want the SV212 cab!
    Does anybody have one and like it?
     
  12. tce63

    tce63 Well-Known Member Premium Member

    Joined:
    Aug 6, 2018
    Messages:
    1,714
    Likes Received:
    4,520
    Location:
    Sweden
    Glad you like the Spark Boost.

    I have a SV212C , sounds great after about: +30 hours
     
  13. Tiboy

    Tiboy Well-Known Member

    Joined:
    Dec 5, 2013
    Messages:
    429
    Likes Received:
    534
    Location:
    New Jersey
    I agree with tce63. My SV212C sounds great after break in.
     
    Mitchell Pearrow and tce63 like this.
  14. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    15,132
    Likes Received:
    12,633
    Well for one thing youd lose the ability to jumper the channels, try jumpering and put the bright channel on 2 and normal channel on 7, you get a nice clean then step on an OD pedal like a Rat and the volume and gain will jump up for lead. :yesway:
     
  15. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    15,132
    Likes Received:
    12,633
    They also have pedals for this like the Mad Professor Underdrive if you dont like fiddling with your guitar knobs, set your lead volume and tone on the amp and step on the Underdrive for your rythm volume and tone. :yesway:
     
  16. WellBurnTheSky

    WellBurnTheSky Well-Known Member

    Joined:
    Mar 23, 2019
    Messages:
    766
    Likes Received:
    1,792
    Location:
    South of France, Europe, Earth
    The HBE Detox EQ is another great option for this that has B/M/T controls so you can really tailor your clean-ish tone. I have a home-made clone of it on my board and it works great to get from breakup to clean on the SV.
     
    Mitchell Pearrow, tce63 and pedecamp like this.
  17. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    15,132
    Likes Received:
    12,633
    Whats interesting is you'd think a straight up EQ pedal would work but it doesnt because of the lack of B/M/T controls.
     
  18. WellBurnTheSky

    WellBurnTheSky Well-Known Member

    Joined:
    Mar 23, 2019
    Messages:
    766
    Likes Received:
    1,792
    Location:
    South of France, Europe, Earth
    Mitchell Pearrow, pedecamp and tce63 like this.
  19. marshallmellowed

    marshallmellowed Well-Known Member

    Joined:
    Jun 26, 2009
    Messages:
    3,957
    Likes Received:
    5,111
    You totally lost me on that one. B/M/T are EQ controls, but with a pre-defined frequency band for each. An EQ (multiple bands) should actually give you more control over the frequencies than just B/M/T, and still allow you to reduce the volume. :scratch:
     
    Mitchell Pearrow and tce63 like this.
  20. pedecamp

    pedecamp Well-Known Member

    Joined:
    Dec 7, 2009
    Messages:
    15,132
    Likes Received:
    12,633
    Sounds strange I know but its not the same. I have a couple popular EQ pedals and the bands dont work the same tonally as a B/M/T.
     
    Mitchell Pearrow likes this.

Share This Page