ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 [2]  All   Go Down

Author Topic: will putting bass through pa blow speakers?  (Read 17028 times)

Charlie Zureki

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1244
  • South Eastern Michigan (near Windsor)
Re: will putting bass through pa blow speakers?
« Reply #10 on: May 17, 2012, 08:57:23 am »

Hey guys, I'm new to the live sound arena, and needing some help.  I just purchased some dual 12 pa speakers from seismic audio, rated for 600 watts rms, 1200 peak, and 4 ohms 45 hz - 20k. My guitarist has a peavy ipr 1600, at two 4 ohm speakers it is rated for 530 watts per channel.

Today we were setting the gear up, our equipment is all run through an old fender 100 watt power mixer.

any insight would be greatly appreciated.  Thank you.

  Hello,

  Just as others have written, the speakers are pretty bottom of the barrel.  If the 30 day thing is still in effect, take them back and look to rent a couple of speakers for your gig until you can save enough to purchase something a little better.  This box has a lousy $9 horn in it.

   Also.. how are you connecting the outputs of your 100 watt head mixer to the peavy amp?

   If you insist on using this rig for your party...put only vocals and a snare/hat mic through it.  It's not only the Bass guitar's low notes that you'd have to worry about, it's a kick drum that could cause over extension of your drivers.... but, I wouldn't worry too much as Brad had mentioned, the speakers seem under powered.  Just remember...no clipping.

  Good Luck....remember...a bargain isn't a bargain if it won't fit the task.
  Hammer
   
   
« Last Edit: May 18, 2012, 06:08:37 pm by Charlie Zureki »
Logged
Do it the right way....don't be a Dino!

Rob Gow

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 424
Re: will putting bass through pa blow speakers?
« Reply #11 on: May 17, 2012, 09:57:59 am »

Today we were setting the gear up, our equipment is all run through an old fender 100 watt power mixer. When I turned the bass channel up to only about 9 o clock on the mixer to get some smooooooth grooves from the bass guitar, immediately the guitarist told me to shut it off, then insisted the bass guitars open note is too low for the speakers to handle, (it's a B1) and that he read countless testimonials online about how putting bass through pa speakers can blow the speakers. And further insisted the bass cab will be more than enough to carry the bass.

I also caught the highlighted tidbit...

Running a powered signal to a power amp is not a good thing to do...
Logged

David Morison

  • SR Forums
  • Hero Member
  • *
  • Offline Offline
  • Posts: 689
  • Aberdeen, Scotland
Re: will putting bass through pa blow speakers?
« Reply #12 on: May 18, 2012, 07:49:06 am »

Ivan, you do realize he is talking about a 5 string bass, right?

The note referenced in the OP is an octave above the bottom B of a conventionally tuned 5 string, which is what Ivan was pointing out.
Of course, it could just be a typo, but maybe the OP's band uses some funky old baritone guitar for the low end or somesuch.
Logged

Ivan Beaver

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 9104
  • Atlanta GA
Re: will putting bass through pa blow speakers?
« Reply #13 on: May 18, 2012, 08:03:55 pm »

Ivan, you do realize he is talking about a 5 string bass, right?


But he said B1.  B 0 is 32 Hz.

I assumed that he was also doing some weird tuning on the low string to get B1.

Apparently there is a lot "mixed up" in this situation
Logged
A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Kenny Deal

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 253
Re: will putting bass through pa blow speakers?
« Reply #14 on: May 18, 2012, 11:19:20 pm »

Just to chime in here, if the bass is loud enough without going thru the PA, great. This is very common with smaller bands in smaller rooms. People tend to forget the primary function of a PA is to make the performers audible and (hopefully) balanced. You don't need to mic the guitars, drums, horns, tambourine, etc, if they are already loud enough (or too loud).
+1.
Don't put anything in the pa but vox and possibly a little gtr and that is only to keep the gtr stage volume down.
Logged

Harris Wangberg

  • Newbie
  • *
  • Offline Offline
  • Posts: 3
Re: will putting bass through pa blow speakers?
« Reply #15 on: June 12, 2012, 01:37:54 am »

Thanks for the information guys, since my posting we played, everything went well, actually the guitar running through the pa was too loud and drowned out everything else if you were standing in front of the speakers. The audience stood off to the side and we were told it sounded really clean and clear.

As for the tuning, it is a four string, tuned to c# standard or drop B. I was going entirely off what guitar pro tells me the notes are for that tuning, (guitar: c#3, f#3, b3, e4, g#4, c5) bass being one octave lower usually, I figured it was a b1, as the guitar would be a b2.

Rob: I have wondered if that was a bad idea, thanks for the note, I now know we need to get a passive mixer.

Again, thank you all.
Logged

Bob Leonard

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 6807
  • Boston, MA USA
Re: will putting bass through pa blow speakers?
« Reply #16 on: June 12, 2012, 06:54:08 am »

Harris,
Party indicates house gig / small hall. forget about pushing anything but vocals through the PA. Have the bass player use his own rig or rent one if needed. After that get a good mix on stage below the loudest vocals and you're all set. Work on replacing the cabinets ASAP and if they're within the 30 day window send them back after the gig.
Logged
BOSTON STRONG........
Proud Vietnam Veteran

I did a gig for Otis Elevator once. Like every job, it had it's ups and downs.

ProSoundWeb Community

Re: will putting bass through pa blow speakers?
« Reply #16 on: June 12, 2012, 06:54:08 am »


Pages: 1 [2]  All   Go Up
 



Page created in 0.036 seconds with 25 queries.