The Official Marshall Studio Vintage Thread Sv20h

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

  1. Tiboy

    Tiboy Well-Known Member

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    Regarding the SV20 Combo- Is there an easy way to bypass the combo speaker and connect directly into a 412 cab?
     
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  2. ken361

    ken361 Well-Known Member

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    Yeah unplug it from behind then plug your 412 in
     
  3. Biff Maloy

    Biff Maloy Well-Known Member

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  4. Mitchell Pearrow

    Mitchell Pearrow Well-Known Member

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    Yes major save there
     
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  5. Biff Maloy

    Biff Maloy Well-Known Member

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    Yeah. No offense to the person asking. When you don't know is understandable but with clearly labelled speaker outs for an external cab i didnt want to take a chance on assumption.
     
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  6. Mitchell Pearrow

    Mitchell Pearrow Well-Known Member

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    Same here bro
     
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  7. Tiboy

    Tiboy Well-Known Member

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    Thanks guys. I don’t have the combo and didn’t look closely at pics. So I didn’t know there was a speaker out.
     
  8. Kid_Awesome1

    Kid_Awesome1 Active Member

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    4C9748D8-9D06-448D-A7A2-FF0632C984B9.jpeg Ladies and gentlemen, it has arriven. Cab came today too!
     
  9. tce63

    tce63 Well-Known Member

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    HNAD and HNCD, Congrats, looks great.

    I know you will love that amp.

    Cheers :cheers:
     
  10. Kid_Awesome1

    Kid_Awesome1 Active Member

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    Host Nation Agreement Decision?
     
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  11. tce63

    tce63 Well-Known Member

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    Exactly :)
     
  12. Kid_Awesome1

    Kid_Awesome1 Active Member

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    Ok so I’ve had a few hrs to mess around and I love this amp! The sustain is incredible and it has the distortion I crave which is low output pickups through a tube amp workin’ hard. Don’t even need a pedal. You’re all invited to the wedding. Question for the group: I’m getting a significant amount of hiss with my LP using either high treble input (or jumpered). Using just the normal channel sounds great and is a perfect Clapton brown sound. Is the difference in input noise between normal and high treble that extreme for everyone else? I can certainly live with it. I just want to make sure it’s working properly. Thx!
     
  13. Robus

    Robus Active Member

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    It seems to be what everyone is hearing, so if it's a problem with the amp, they all seem to have it. Personally I could NOT live that hiss. It ruined it for me as a recording amp, so back to the store it went.

    If they ever sort out the hiss, I'll own the amp again.
     
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  14. johan.b

    johan.b Well-Known Member

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    A bit of noise is to be expected... there is after all a lot of gain... and yeah, the cool thing about a plexi is that even if the apparent gain is roughly the same as any master volume amp, it just sings and where a 2203 might need a tube screamer or od1 to really sing, a plexi doesn't...
    J
     
  15. assaf110

    assaf110 Well-Known Member

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    I'm not sure it's gain related. The noise is there as soon as you open the volume knob (like 0.5) even if the normal channel is at much higher volume. I did find that the high treble channel is very noise sensitive, so every tiny noise coming from the power, pedals etc. is triggering that noise (it's not really hissing). Sorting the power, eliminating noisy pedals really made it better in my case.
     
  16. Robus

    Robus Active Member

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    I don't think it is gain related. It is there even if you barely crack the gain channel knob. It is too much for me. I hope there is a fix cause I loved the amp otherwise.
     
  17. trovador

    trovador Active Member

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    A noise suppressor works well. I sometimes use the Boss NS-2 with my SV20H and get great results.
     
  18. ken361

    ken361 Well-Known Member

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    mine isn't bad
     
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  19. JohnH

    JohnH Well-Known Member

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    I don't have the amp, and I dont know if there is a specific problem with a particular amp. But I can relate to the hiss issue. Its apparently a loud amp for its size, and all amps make some hum and hiss. It has nothing after the input section to reduce the natural noises. So even if the input volumes are kept low, there is still the full residual hiss of a 20W (or 5W) amp coming through.

    Im guessing that if you can crank the amp up loud, as intended, then the hiss is not a problem in proportion to the signal?

    MV amps cut down on hiss at least from the preamp, but the SVs don't have this.

    This could be where an attenuator of your choice, between amp and speaker, can help directly, reducing all unwanted noises then letting you build up the real signal that you want by turning up louder.
     
    Last edited: Jul 30, 2019
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  20. MarshallDog

    MarshallDog Well-Known Member Premium Member

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    I noticed the same thing with the combo I had for a day before I sent it back...very noisy IMO...:shrug:
     
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