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  #1  
Old 12-13-2009, 10:34 AM
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Exclamation Thoughts on Boss- guitar EQ for piezo Buffer

Hey there fellow bassist I just inherited a 7 band guitar EQ. pedal with the frequencies 100 200 800 1.6k 3.2k 6.4k and I was wondering if it would be a sufficient buffer with my piezo element .
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  #2  
Old 12-13-2009, 01:26 PM
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Most important data is the input impedance.
What's the model?
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  #3  
Old 12-13-2009, 06:36 PM
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Not the right tool for the application. You need a buffer pre,
not so much more eq.
  #4  
Old 12-14-2009, 03:16 AM
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Quote:
Originally Posted by Francois Blais View Post
Most important data is the input impedance.
What's the model?
200 watts at minimum impedance
minimum impedance 2 ohms ?

It is a Yorkville- Bass Master 200XM -one 15" & Piezo Tweeter/30 watts
My pickup is just a Piezo element I took from an old Sony digital Organizer, shielded with copper Tape and soldered to a Jack.
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Last edited by Mr.Bassist : 12-14-2009 at 03:21 AM.
  #5  
Old 12-14-2009, 05:46 AM
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If it's the Boss GE-7, it actually has a 1 meg input, so it would do the job for buffering. The EQ points are different than the bass version, which has a low band of 50Hz versus the guitar model's 100Hz. That might be its weakness for DB

Last edited by tornadobass : 12-14-2009 at 06:45 AM.
  #6  
Old 12-14-2009, 06:14 AM
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Originally Posted by tornadobass View Post
If it's the Boss GE-7, it actually has a 1 meg input, so it would do the job for buffering....
+1 it works fine. The EQ points are OK, the GEB-7 goes up to 10k I think which is a little unnecessary. So the GE-7 maybe has a better spread across the mids.
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  #7  
Old 12-14-2009, 06:43 AM
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Quote:
Originally Posted by Mr.Bassist View Post
200 watts at minimum impedance
minimum impedance 2 ohms ?

It is a Yorkville- Bass Master 200XM -one 15" & Piezo Tweeter/30 watts
My pickup is just a Piezo element I took from an old Sony digital Organizer, shielded with copper Tape and soldered to a Jack.
I was asking about the Boss EQ model.
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  #8  
Old 12-14-2009, 10:57 AM
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GE-7
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  #9  
Old 12-14-2009, 03:08 PM
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I use this pedal (the guitar version) in conjunction with a Rev Solo II. It works! The band ranges I needed to tinker with worked better than the bass version.

Last edited by DrBassie : 12-14-2009 at 03:11 PM. Reason: more info
  #10  
Old 12-14-2009, 03:46 PM
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boss tu2 matches

The Boss TU2 chromatic pedal tuner matches impedance.
It has a 1M Ohm input on it. TU2 tuner is great, rugged , easy to read in dark, and it impedance matches.
http://www.bossus.com/gear/productde...&ParentId=252#

Bought mine used, best $50 I've spent.

But not to include that $50 I spent in TJ, but California court of law won't let me talk about that anymore.

Good Luck

Last edited by akmusicfreak : 12-14-2009 at 04:06 PM. Reason: added link
  #11  
Old 12-20-2009, 08:04 PM
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The buffer is active when the pedal is bypassed, so you don't even need to turn it on. I believe the majority of BOSS pedals use the same buffer and have a 1meg input impedance. I used to use a BOSS BF-2 Flanger as a buffer. Made for some interesting solo tones..
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  #12  
Old 12-20-2009, 11:18 PM
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you upright guys find 1M buffers to be sufficient?

for guitars and other instruments, anything below 6M or even 10M causes significant low end loss with piezo pickups.
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  #13  
Old 12-21-2009, 12:56 AM
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Many commercial preamps for DB piezo pickups are 1Mohm....
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