Suhr Reactive Load quesion

Discussion in 'Amps and Cabs' started by bxlxaxkxe, Jan 3, 2019.

  1. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    @Husky or anyone else familiar with this type of setup,

    I want to try using my RL to reamp a NMV Marshall. Do I have this right:

    Guitar is plugged into NMV Marshall.

    8 ohm tap of Marshall into RL.

    Line out of RL into effects return of Shiva

    Shiva connected to speaker cabs.

    Question: Does the impedance of the Shiva matter here in relation to the RL (do I need to have the Shiva set to 8 ohms as well)? Have 2x 8ohm cabs I run together at 4 ohms from the shiva typically and would prefer to run it like this.

    Thanks
     
  2. cnardone

    cnardone Member

    Messages:
    2,090
    Joined:
    Mar 7, 2002
    Location:
    Stony Point, NY
    in relation to the SRL? no. It needs to be set to the cabinet the shiva is connected to.
     
    bxlxaxkxe likes this.
  3. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Yeah figured. Just a little nervous about this ha
     
  4. Jay Axis

    Jay Axis Silver Supporting Member

    Messages:
    630
    Joined:
    May 15, 2014
    Location:
    Tennessee
    You’ve got it right. Set the shiva impedance to what the cabinet is and set the amp running into the reactive load to 8 Ohm. Follow up with what you think of slaving it into the power section of the Shiva. I never tried that with my Reactive Loaf and the power section of another tube amp.
     
    bxlxaxkxe likes this.
  5. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Ok yea the impedance question was pretty dumb on my part.

    Next dumb question- no issues with running a delay in between the RL and Shiva fx return, correct?
     
  6. Blix

    Blix Supporting Member

    Messages:
    24,121
    Joined:
    Mar 11, 2010
    Location:
    Stabekk, Norway
    Correct!
     
    bxlxaxkxe likes this.
  7. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Awesome. This will be interesting.
     
  8. cnardone

    cnardone Member

    Messages:
    2,090
    Joined:
    Mar 7, 2002
    Location:
    Stony Point, NY
    Let us know how it goes!
     
    bxlxaxkxe likes this.
  9. Blix

    Blix Supporting Member

    Messages:
    24,121
    Joined:
    Mar 11, 2010
    Location:
    Stabekk, Norway
    The presence knob on your Shiva is possibly active even if you go straight to fx return. you probably want to keep it low or at 0.
     
    bxlxaxkxe likes this.
  10. marshall2553

    marshall2553 Supporting Member

    Messages:
    1,580
    Joined:
    Dec 9, 2009
    Location:
    Winston-Salem, NC
    I've been doing this with a solid state power amp with a delay between the RL and my power amp and it works great.
     
    bxlxaxkxe likes this.
  11. Husky

    Husky Gold Supporting Member

    Messages:
    11,359
    Joined:
    Nov 5, 2008
    The shiva should be set to 4 that doesn’t change. The Marshall set to 8.
    I’d advise setting the shiva for the most negative feedback if you have that option and presence off. As flat as possible, no bass boost or depth unless at real low volume. Also if the RLIR use the high cut.

    When I do this I use an MXR 10 band EQ to further tweak.
     
    Last edited: Jan 3, 2019
    bxlxaxkxe likes this.
  12. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Sounded better than I thought it would honestly. But I think I still prefer an OD in front of the Plexi with the volume down. Will mess with it more this weekend.
     
  13. Husky

    Husky Gold Supporting Member

    Messages:
    11,359
    Joined:
    Nov 5, 2008
    Try both
     
    bxlxaxkxe likes this.
  14. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Will do.

    For whatever reason, the tone out of the GB cab is sounding off when I run it through the Shiva power amp- a little spikey and thin. Not sure why that is. Sounds like it should when running the plexi directly into it though. The V30 cab sounds pretty good using the Shiva power amp.
     
  15. Husky

    Husky Gold Supporting Member

    Messages:
    11,359
    Joined:
    Nov 5, 2008
    I’m not sure what you mean?
    Is this the RLIR? If so run out of the unfiltered out and hit the hi cut.
     
  16. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Regular RL. Just sounds a little off when running into my GB 2x12.
     
  17. Husky

    Husky Gold Supporting Member

    Messages:
    11,359
    Joined:
    Nov 5, 2008
    That is because you are getting twice the effect of the impedance curve on the frequency response boosting especially the highs and it will be dependent on the Bogner and how flat it is or isn’t. The RLIR has a impedance curve shift hi cut for this. You could also put an MXR10band in there to tweak. We run in to a PT100 loop return, put feedback on 0 (most negative feedback) and presence off.
     
  18. bxlxaxkxe

    bxlxaxkxe Supporting Member

    Messages:
    3,012
    Joined:
    Sep 20, 2010
    Location:
    Virginia Beach, VA
    Gotcha. That explains it.
     
  19. ufguy73

    ufguy73 Gold Supporting Member

    Messages:
    4,263
    Joined:
    May 5, 2009
    john, I realize this is an old thread but I have recently purchased a Suhr RL and trying it with different power amps (so far fryette 2/50/2 and briefly 2/90/2).

    i am curious about the doubling effect you mentioned - shouldn’t that be the case with the Power Station, too, where you have a modeled impedance curve load going into an actual tube power amp?

    or is it that the voicing switches on the PS are altering the load and therefore when it comes out of the power amp its essentially removed the doubling (or put another way, you are essentially eq’ing the load like you were suggesting a separate eq for)?

    also, when using the Suhr RL and the 2/50/2 or 2/90/2 at lower volume levels, I didnt really detect a lot of lows or highs (at least not so much that I would have ever thought i needed an eq)...

    is it possible that these fryette power amps are relatively neutral and so don’t need the eq as much? Or perhaps the doubling effect doesn’t come into play at the lower volume levels i am playing at?
     
  20. Husky

    Husky Gold Supporting Member

    Messages:
    11,359
    Joined:
    Nov 5, 2008
    Everyone's reactive load is going to follow a different curve, mine mimics the extreme resonant bump as the G12M 4x12 cabinet Plots. If you use our high cut switch, this is what it is there for on the RLIR to balance out the increase at higher frequencies. If the fryette power amp works for you then that is awesome especially since at low volumes you will probably want depth and more presence anyway to compensate for our hearing Fletcher Munson and all that at lower volumes. Those are certainly flatter than many other tube power amps out there, probably when you get the volume up you might want to turn off the presence and depth.
     
    ufguy73 likes this.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice