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Dirty-South Blues Harp forum: wail on! > Using DI to PA and AMP
Using DI to PA and AMP
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superchucker77
234 posts
Mar 04, 2010
10:22 AM
Something that I have been told at a few gigs is that it would be useful to get a DI box to go straight into the sound board. I know that Son of Dave uses a DI combined with having his amp miced onstage.
I would like to know if this is realy a good idea, and how this would really help.
During my solo performances, I like to have my amp setup on the slightly cleaner side so that I can sing through the harp mic at points without having too much distortion, while still having the warmth from the amps tube tone.


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Brandon Bailey

Superchucker77's Youtube
congaron
620 posts
Mar 04, 2010
10:31 AM
Doing this would let the sound tech control your volume more easily and let you turn down for a lower stage volume. that should also put you into the lower distortion or clean sounding area of your tube amp. The only downside for your particular scenario would be the added complexity of the amp to simply give you a clean tone anyway. My bet is the audience won't care if you just go straight in and let the sound tech do everything including control the monitor volume. If you're looking for clean tone anyway, I wouldn't even bother with the amp. It's not that hard to add it, but it is another piece of equipment to dial in by a person other than the sound tech.

Last Edited by on Mar 04, 2010 10:33 AM
MrVerylongusername
945 posts
Mar 04, 2010
10:36 AM
You could send a feed to the desk via a DI box and one to your amp and select them with an A/B/Y switch pedal.
congaron
621 posts
Mar 04, 2010
11:37 AM
I forgot to mention, I have a 300 watt keyboard am and a 2000 watt Pa I have connected this way with my valve junior..di into the pa/valve junior. Or DI keyboard amp/valve junior. I can't detect a significant difference in harp tone on clean valve junior settings. For guitar, yes...I can hear a "warmth", but for harp it is such a small difference the sound guy can tweak the board to "warm" it up with a touch of reverb and EQ.

Unless you intend to use your higher gain amp settings, i wouldn't bother with the amp. I do this very thing and use my digitech pedal as an EQ/volume/on-off control straight into the PA. Granted, if you want chicago tone, you'll need the amp. In your scenario above, i doubt the tone difference is worth the hassle. I don't even use my pedal in the praise team at church..straight into a stick mic.
superchucker77
235 posts
Mar 04, 2010
12:37 PM
Got it congaron. Thanks very much.
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Brandon Bailey

Superchucker77's Youtube
Greg Heumann
346 posts
Mar 06, 2010
8:21 AM
Brandon - How do you mean? a) Mic straight into DI box to board? or b) line-out from amp into DI box to board?

I don't recommend a) - lousy tone, no control. b) works great.

Remember if you use a splitter or passive A/B/Y box on your mic line, you'll be cutting the input impedance in half best case. A good strong dynamic should handle this OK, but it can suck a lot of tone from many a crystal.
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/Greg

BlowsMeAway Productions
BlueState - my band
Bluestate on iTunes
superchucker77
239 posts
Mar 06, 2010
9:11 AM
@Greg Heumann
I mean taking my dynamic microphone through a boss oc-2, into an Akai Headrush E2, then into the DI, then into the board. None of my amp's have a dedicated line out. I know that Son of Dave does something very similar to this at his solo show's, however he also has a miced amp setup on the stage, going from the high-z line out of the DI. What confuses me, is why I would need both a miced amp and a signal going straight to the board from my mic. I'm trying to get the best semi-clean sound possible, while still having a bit of tube warmth. Not too much distortion.
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Brandon Bailey

Superchucker77's Youtube
Elwood
391 posts
Mar 06, 2010
12:17 PM
I've been swamped with work so the Son of Dave interview is only going live in a few days, but here's a quick preview:

"I take a very tiny amp [and a] DI so the sound man gets two signals – he gets the amp and he gets the clean signal from the DI… and then he can mix the two. You get more lows especially for the bass and beatbox and kick, and get more lows out of the direct signal than you do out of a little amp. Or even a big amp sometimes." - Son of Dave


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Murray. The smartist formerly known as Elwood.
superchucker77
242 posts
Mar 06, 2010
12:19 PM
THANK YOU THANK YOU THANK YOU, ELWOOD.
Thats excatly what I needed to hear right from the man himself.
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Brandon Bailey

Superchucker77's Youtube

Last Edited by on Mar 06, 2010 12:20 PM
hvyj
179 posts
Mar 06, 2010
10:15 PM
@congaron: What keyboard amp do you use?
congaron
637 posts
Mar 07, 2010
5:00 PM
It's a behringer 300 watt..k3000fx with 15 inch woofer and compression horn tweeter..not piezo. I've had it several years. My bass player has played through it as well. He likes it better than his bass amp..galion krueger not sure what model. I have used it for vocals, electric guitar with my digitech pedal, acoustic guitar, bass, harmonica...so far only clean. Anytime My wife and i work up a number, I wheel it out into the living room with a mic and some cables to hook stuff into it. Very handy.

The amp is a great little small room PA for coffee houses and I have even used it alone in our church sanctuary...seats 300 on the main floor. Bang for the buck, I highly recommend it. It is a zero defect item I use also as a drum monitor on occasion. It does weigh nearly 70 pounds though. Like I said, I've had it several years, but I don't remember how many. I guess they still make it.

Last Edited by on Mar 07, 2010 5:01 PM
bluedogg
49 posts
Mar 09, 2010
5:17 AM
i use an H&K Redbox DI. it connects to full power via Speaker out on your amp. It also simulates a speaker sound. It actually comes very close. I use it with a Pro Jr. and also with a 59 Bassman RI. I use it in combo with a mic on the speaker for recording. i'm very happy with the outcome.


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