Build a reamp box8/12/2023 You can also invert and mix the capture track with the re-amp capture and verify that they sum to zero and that they are therefore identical in signal and level. If you re-amp into the LWADI you can simultaneously record loopback and verify that the levels are correct. I would just get your cables right as described above and verify that you can capture and re-amp without hum from ground connections. Re-amping will definitely require a bit of experimentation. This is another place where the simple impedance balanced single op amp device I originally mentioned would be good. If it's not balanced, you probably want connection diagram 3 but in this case you are connecting grounds so you might get hum. If it does, then use connection diagram 5 probably and just plug right into the amp or pedal board or clean buffer. So you might just use a clean buffer in front of the LWADI.įor re-amp, you can make another cable but this depends on whether or not the USB audio interface has a balanced output or not. But even then, it will be in parallel with your amp which is probably 1M so the impedance seen by the guitar would only be around 400K which is probably ok but some real pedants might take exception to it. Or you can change the two resistors as described in my mods and get the impedance higer. So you could use it with a clean buffer in front. Note: The livewire ADI direct box (LWADI) would work stock EXCEPT for the fact that the input impedance is only ~175K. This should be provided either by the guitar amp.įor capture, you need a pedal like the livewire thing I have that has a "through" connection or equivalent pedal that splits the unmodified signal to the amp and then outputs to said cable to your USB interface. Note: The guitar needs a really solid earth connection. So I would really like to hear your thought on the topic, keeping in mind this is going to be used just for a $200 audio interface budget home "studio" AKA my computer desk in my front room. As my main usage is going to recording guitar tracks via a cheap USB interface and plan to use the DI box mainly so I can get a clean DI signal into my DAW while playing with my amp and then post-production on the clean DI track and would love to use my pedal in my DAW (I have too many guitar pedals), so thinking about reamping more as a way to play with the pedal setting, could I (or rather should I?) be better off making a couple of passive DI boxes set up in a signal chain like DI track from:ĭAW -> Output of audio interface -> Reamp box -> Pedal chain -> DI box-> audio interface -> DAW?Īs if I use a passive DI can I just flip it 180 and use it as a reamp box? The internet seems not to agree on if this can/should be done. Slight tangent here but you seem to know what you're talking about. And having an active volume foot pedal can be useful for a variety of reasons (great for a keyboard rig if that happens to be what you need the DI for).Ĭlick to expand.Thank you will give that a try! I have an Ernie Ball MVP active volume foot pedal which seems to be as simple as it needs to be very quiet. The op-amp is a dual and there's an LED but it lasts for literally months on two batteries as long as I don't forget to switch it off.Īnother possibility depending on your circumstances is to just get some little booster pedal and make a TS to TRS or XLR cable or whatever cable you need. Unfortunately because that's so trivial, nobody seems to make such a thing.Ĭurrently I have one DI which is cheapo off-the-shelf unit that I hacked with 1) dual 9V battery bipolar supply and 2) a switch to make it impedance balanced out so that it can drive unbalanced loads. IMO the ideal modern DI would be a dual 9V single op-amp impedance balanced output in a smallish steel box. Phantom power noise on USB audio interfaces can be even worse because they have to use DC converters which are difficult to implement properly without polluting the noise floor with whistling noises. The small format mixers are quite common but usually they only allow switching phantom power on all channels together which can easily add noise to a mix. I don't have statistics of course but your average recording environment probably does NOT have phantom power available that would be useful for a DI. But these days the big analog desks aren't used as much. Phantom power is standard on large format mixing desks which long ago every studio used daily. Click to expand.The obvious answer is that it's not powered.
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