A balanced signal contains a positive, a negative, and a ground path.Īn unbalanced only contains a positive and a ground path. The first is to convert an unbalanced signal to a balanced one. It is also common for them to feature a ground lift switch which is used to eliminate ground hum.īesides the connector matching, there are three main reasons for using a DI box. The box contains a ¼” jack input for your instruments, an XLR output for connecting to your preamp, and another jack which allows you to pass the input signal to an amplifier. So, let’s get into the specifics now! What is a DI Box?Ī direct input box (input, injection, insertion, take your pick) is a piece of hardware which allows you to plug instruments into the preamplifiers on your interface or mixer. Mic Preamps are designed to take a mic level signal and bring it up to line level, and the preamps that have DI inputs generally do not have the parallel feed for your amp.Įssentially, DI boxes are useless for microphones and are generally used with electric guitars and basses, and they generally have the ground lift feature which will disconnect the ground between the input and the output, getting rid of ground loops. So, without any further ado, let’s get started! The differences between a DI box and a preamp are Ī DI box converts a high impedance signal to a low impedance signal that a mic pre can deal with, and it also features parallel inputs to plug the guitar into it and have the signal go to the amp as well as the preamp. Well, in this post I will do my best to give you a good answer to the question as well as give you some detailed information about both, which ones to get, where to get them, and more. Like I said - I'll probably bite the bullet and just buy a box but I just wanted to know from the experts what options I have.Have you ever wondered what the difference between a DI box and a preamp is? I don't pretend to be an expert on this stuff but whther it is -10db or +4db, I think it will still result in a rolloff of the high end sending a low impedance signal into a guitar amp meant for a high impedance input. I am aware that -10db is consumer level and I think the idea was to lower the level going into the amp, but I don't think that addresses any impedance mismatching. Not sure if I can call sweetwater from Canada without a charge. It looks like exactly what I need- and they actually make them here in town (vancouver -canada) which I just found out.īy the way- I don't work for this company- if anyone can steer me in the direction of any other units that are better/cheaper/you've used with good results- please, by all means let me know. I just may buy one of those devices- in my other post I mentioned this one. I'd rather not spend the money on a device built specifically for that if I don't have to I've also heard I could just switch the output on the delta1010 to -10db and it will be fine. I know they make such devices but I was told by a sales guy the local store that I could just use a regular DI box but the exact reverse of how you'd normally convert your guitar signal to line level. The way I understand it is I need to "step down" the line level signal to a low level-high impedance instrument level in order not to worst case -fry the input on the amp or possibly get some signal loss. Send my already recorded dry guitar tracks (recorded using DI box) back out from my delta 1010 into a guitar amp. Maybe I'm not explaining myself correctly but it seems pretty clear to me. I posted in the techniques forum but not one reply.
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