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04-21-2008, 09:47 PM
| | Registered User | | Join Date: Sep 2004 Location: St. Louis, Missouri | | | Aguilar OBP-1...Single 9 Volt battery?
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I'm installing an Aguilar OBP-1 (2 band) preamp. I'm curious if anyone runs them with just a single 9V instead to the recommended 18V and what the results are.
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04-21-2008, 10:09 PM
| | Registered User | | Join Date: Dec 2004 Location: Calgary, Alberta, Canada | | | While I have no experience with the piece itself, I will guess that it won't work at all, just like effects pedals won't work without the correct voltage.
2 cents thrown.
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Demter VTBP-201S/VTHF-300M going through HD-210 and HD-212.
All I need now are the Demeter Cabs!... and maybe another power amp and another pre and a cross-ov....
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04-22-2008, 01:16 AM
|  | Musician - tech/repair at Nordstrand Guitars
Endorsing artist: Genz Benz - Nordstrand - DR strings | | Join Date: May 2003 Location: Los Angeles/Redlands, CA | | | always used it at 9v.... sounds great!
If you don't use the ctrls at their maximum (I have no idea why some one would this) you'll be fine.
M |
04-22-2008, 07:48 AM
| | | | Works fine. |
04-22-2008, 08:02 AM
|  | Supporting Member
Endorser: Dean Markley / Thunderfunk | | Join Date: Feb 2005 Location: Branson, Missouri | | Quote:
Originally Posted by cybersnyder  Works fine. | Yup...did that for years with 2 basses...no issues at all |
04-22-2008, 08:05 AM
| | Registered User | | Join Date: Sep 2004 Location: St. Louis, Missouri | | | Thanks for the replies. I just noticed, while looking at Nino Valenti's website, some photo's of OBP-1's wired with a single 9V's. Between that and what you guy's say, I should be fine. Thanks again.
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04-22-2008, 10:32 AM
|  | Registered User
Builder: Valenti Basses | | Join Date: Feb 2001 Location: Staten Island NYC | | Quote:
Originally Posted by maconbass Thanks for the replies. I just noticed, while looking at Nino Valenti's website, some photo's of OBP-1's wired with a single 9V's. Between that and what you guy's say, I should be fine. Thanks again. | The OBP-1's that have a single 9v have a Fishman Voltage Doubler. Unfortunately for me, Fishman discontinued this and I've been using 2 batteries since. |
04-22-2008, 10:59 AM
| | Registered User | | Join Date: Sep 2004 Location: St. Louis, Missouri | | | Thanks Nino. I almost sent you a PM to ask you about that. I appreciate the help and guess I'll just go with 18V instead. It's not really a big deal, just trying to save space.
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Sadowsky Club Member #60
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04-22-2008, 11:56 AM
| | Registered User
Builder: Valenti Basses | | Join Date: Feb 2001 Location: Staten Island NYC | | I hear you on saving space. It's getting too tight in my control cavities that I've started using battery boxes to keep things neat.   |
04-22-2008, 12:22 PM
| | Registered User | | Join Date: Sep 2004 Location: St. Louis, Missouri | | I bet mine won't look that nice!  If my little experiment doesn't work out, I just might be contacting you to build me J/MM.
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09-12-2010, 09:19 PM
| | Registered User | | Join Date: May 2004 Location: So. California | | | Can someone confirm what the skinny is on this? Some posts are saying 9v is fine, while Valenti says 9v used to be do-able but not anymore.
Thanks! |
09-12-2010, 09:58 PM
| | | Quote:
Originally Posted by DLM Can someone confirm what the skinny is on this? Some posts are saying 9v is fine, while Valenti says 9v used to be do-able but not anymore.
Thanks! | 9V is fine. No voltage doubler used on my OBP-1 with a single 9V and it sounds great. |
09-12-2010, 10:21 PM
|  | curiously looking back at what once was beautiful | | Join Date: Aug 2008 Location: Oregon | | Sure was a pain, trying to squeeze 2 batteries in a hacked-out '76 Jazz body. Worth it, though!! 
I don't doubt the folks who say it works fine @9V. But the official instructions did call for 18V IIRC and IME it really kicks butt that way.
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09-13-2010, 01:16 AM
|  | So much flame, it burns............ | | Join Date: Feb 2002 Location: Las Vegas, NV. | | Quote:
Originally Posted by cybersnyder 9V is fine. No voltage doubler used on my OBP-1 with a single 9V and it sounds great. | Me too. Although I have since changed them to 18 volt for the EMG's, both mine worked just fine at 9 volts and they are the newer versions (one is less than one year old).
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"Heck! Even Hulk Hogan plays a bass guitar. But, let’s be honest. As a bass player, the Hulkster is no Gene Simmons!"-Jeff Berlin |
09-13-2010, 09:03 AM
| | Registered User | | Join Date: May 2004 Location: So. California | | | Thanks for confirming!
Does that mean that instead of having +18db of boost with 18v, the increase will be less than that with the 9v?
Last edited by DLM : 09-13-2010 at 09:05 AM.
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09-13-2010, 02:34 PM
| | So much flame, it burns............ | | Join Date: Feb 2002 Location: Las Vegas, NV. | | Quote:
Originally Posted by DLM Thanks for confirming!
Does that mean that instead of having +18db of boost with 18v, the increase will be less than that with the 9v? | No. It's more about having a little more headroom in the pre, not the amount of boost. You probably won't even notice a difference.
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