Di box/preamp for acoustic guitar | Page 2 | The Canadian Guitar Forum

Di box/preamp for acoustic guitar

Discussion in 'Effects Pedals, Strings and more' started by silvertonebetty, Jan 21, 2020.

  1. High/Deaf

    High/Deaf Gold Member

    Joined:
    Aug 19, 2009
    Location:
    LM,BC,CAN
    Some mixers will work much better than others. You need an mixer input with very high impedance, like 1 Meg or higher (and usually labeled as 'Hi-Z' or 'instrument input' or similar).

    The problem with many contact pickups is that they have a high output impedance. Plugging them straight into a standard mixer input (often around 100k or less) loads the pickup down and gives you a thin, nasal sound with low signal output (low level). My Mackie Onyx has the first two inputs a with Hi-Z setting that makes a contact pickup sound great. The other inputs don't sound nearly as good for that purpose.

    But when I play out (and not through my own PA) I use an LR Baggs Para-DI that gives me a Hi-Z input to terminate the pickup correctly, adds level and frequency control (+ a notch filter, good for cutting out feedback in different venues). It also has an effects loop for other pedals, which I hardly use.
     
  2. mhammer

    mhammer

    Joined:
    Nov 30, 2007
    Location:
    Ottawa, Ontario
    As companies with a long established track record in acoustic amplification, it would be hard to go wrong with any any LR Baggs or Fishman product. At the same time, it may be way more than you really need, given what you've told us.

    It sounds to me - and please correct me if I'm wrong - that you're simply looking for something to bring the level up, and have other means to adjust the tone, control feedback, etc. If that's true, then pretty much any "clean" full-bandwidth booster, like an MXR Micro-Amp, or any of the Asian-made mini-pedals that attempt to do the same thing, may well be sufficient for your needs. I mean, all those extra controls ARE nice, but if a simple level boost is all you need, then a simple preamp may be enough.
     
  3. High/Deaf

    High/Deaf Gold Member

    Joined:
    Aug 19, 2009
    Location:
    LM,BC,CAN
    I think terminating those passive pickups with a high impedance load is important as well. If you don't do that, you just might be amplifying a thin, brittle sound.
     
  4. silvertonebetty

    silvertonebetty

    Joined:
    Jan 4, 2015
    Location:
    pei
    Yes and I was to play any where Els they have a big mixer board and powered pleakers


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  5. Chito

    Chito Gold Member

    Joined:
    Feb 17, 2006
    Location:
    Ottawa, Ontario
    Last year I sold my Para Di thinking I won't need it. The following week I needed to do recording of me playing an acoustic guitar and realized I needed it. So I ended up buying one used. Thing was I got the latest one cheaper than how much I sold mine. LOL If you play acoustic, it's something nice to have.
     
  6. silvertonebetty

    silvertonebetty

    Joined:
    Jan 4, 2015
    Location:
    pei
  7. Sketchy Jeff

    Sketchy Jeff

    Joined:
    Jan 12, 2019
    Location:
    Manitoba
    xoom has a couple of pedal format acoustic pre amp multi effect things that would work. i have an a3 which is a couple years old. there's a newer ac2 as well. both I'd them will manage the low output sugnal from a passive pickup.
    for live playing they're good maybe not quite high enough sound resolution for studio recording. lota of sound and options to immerse yourself in for basement experiments
     
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  8. Wardo

    Wardo

    Joined:
    Feb 5, 2010
    Location:
    South Ontario
    I have passive K&K pickups in my acoustic guitars. They are real loud.

    I have one of those Schatten preamps just keep it in the case mostly to clip on my strap and use it as a volume control which is good enough for most of the shitty jams that I go to.

    Also, have a Red Eye which sounds nice but costs a bit and you have ship it in.

    As for volume though I get more than enough with just the passive K&K. Maybe your pickup is fucked or not installed properly.

    Also have a passive DeArmond magnetic and it kicks out pretty good too.

    Edit: a quick search suggests that the JJB is lower output than the K&K.
     
    Last edited: Jan 26, 2020
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  9. silvertonebetty

    silvertonebetty

    Joined:
    Jan 4, 2015
    Location:
    pei
    Actually now since I have a proper cable for my guitar I can use more volume on the amp without feedback. And there’s s huge difference on the lead channel than rhythm


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