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Post by Johnkenn on Mar 10, 2015 11:09:43 GMT -6
This is kind've a continuation of my "Diagnose my sta-level" issue...now I'm beginning to think it's my DI. I have new tubes for the Sta - same issue. Wolfiness on the Double and triple attack. When I plug directly into the Apollo Hiz, honestly, it's a much better tone. I need to route into the Sta-Level from the Apollo to see if I'm still getting the farting... So - I guess I have a couple of issues/questions and I'm not being completely clear. First - I've owned Radial P48 Active DI before, but picked up the passive Pro DI - didn't think there would be that much of a difference. Any thoughts on which is better? Second - you can hear what's going on here www.realgearonline.com/post/50205 ...Could this just be my cheap P bass pickups? Is there a bigger problem with my Sta? |
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Post by Johnkenn on Mar 10, 2015 11:11:34 GMT -6
BTW - the weird thing is that I plugged in an EG and crushed it with the sta and I don't get any of the attack problems? When I plug my bass into the Apollo, I don't get any of the attack problems with the comps loaded up. I'm just kinda confused.
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Post by svart on Mar 10, 2015 11:29:52 GMT -6
I'll reply with my thoughts to the other thread about your problem.
As for active vs. passive, I find that active is much better if you want to preserve transients from a passive bass. Most passive DI boxes have relatively low impedance compared to amp inputs, so they tend to load pickups down more. Some pickups can take it, some poop their pants. It's hard to say what pickup will work and what won't.
Once I switched to active DI I no longer had to worry..
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Post by Johnkenn on Mar 10, 2015 11:33:29 GMT -6
Well, that's what it sounds like...pooping it's pants...
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Post by category5 on Mar 10, 2015 12:04:14 GMT -6
A passive DI's performance is directly related to the output impedance of the source, and input impedance of the input device. Generally, drive current has to come from somewhere, and passive pickups have only so much. A transformer can change impedance by trading voltage for current, or vice-versa but you have to have enough to begin with. As a rule, I generally like to have an active device when using passive instruments and either/or for active sources. An active DI will become a buffer between the instrument and next device in the chain, optimally loading them both. The radial boxes are great at what they do, but pick up an Avalon U5 or (my new personal favorite) A Tonecraft 363 and you'll never worry about your DI again. You have to provide a proper load to your instrument, and with passive devices you're at the mercy of the reflected load of the input device.
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