those of you with OBP-1 pre's...

Fine Cut · #1 11-26-2009, 12:17 AM

i'm looking a bit more info on this preamp, even the great Google monster didn't seem to know much. i know it's listed as being an 18 Volt pre, but is it possible to run this pre on 9v? also, being that the bands are boost-only, this makes it sound as if you can't turn the treble down...is this so?

**line6man** · #2 11-26-2009, 12:50 AM

It can run 9, 18 or 27V.

Boost only means that the EQ only boosts and does not cut.

If you want to turn the treble, you would need to add a passive tone control.

Archaeobass · #3 11-26-2009, 01:15 AM

Depending on what you want out of your Pre, an OBP-1 can be great or insufficient.

If you want more gain in general and the ability to goose it up at the bottom or the top, its great. If you want to shape your tone at the instrument level, the OBP-1 is probably gonna fall short. For nearly even money, I would pick up an OBP-3. You get a mid contour and treb/mids/bass boost AND cut - a much more flexible and warmer rig.

My Q5 sounds great with OBP-1. Its gonna transcend great when I install an OBP-3 over the holidays.

Edit: I should add, the OBP-1 has LOTS of boost. Way more than is really useful. I rarely dial in any boost past 3 o'clock.

Kubs · #4 11-26-2009, 01:36 AM

very VERY rough said its same as Sadowsky EQ, only difference in "tech specs" is ammount of boost...Sadowsky had more boost available.

I had one OBP-1, assembled like "ouboard pre" and...yes its definitely great pre-amp! Its only on your tastes, it doesnt make "ugly highs and boomy bass" sound like f.e. el cheapo ibanez electronics do...

Clark Dark · #5 11-26-2009, 05:30 AM

I think the two band OBP-1 is a good pre. It depends what you're using it with IME.
In one of my basses, a mohagany body (maple top) with mohagany neck (ebony fretboard) it's great because the mohagany tends to be midrangy by itself.
On the other hand in my swamp ash with maple neck/fretboard the 3 band serves me better.

ddnidd1 · #6 11-26-2009, 11:06 AM

Quote:

Originally Posted by Kubs

very VERY rough said its same as Sadowsky EQ, only difference in "tech specs" is ammount of boost...Sadowsky had more boost available.

I had one OBP-1, assembled like "ouboard pre" and...yes its definitely great pre-amp! Its only on your tastes, it doesnt make "ugly highs and boomy bass" sound like f.e. el cheapo ibanez electronics do...

The OBP-1 has 18 db of boost. The Sadowsky has 13 db of boost. The frequency centers are identical and if I recall correctly both were designed by the same person.

Fine Cut · #7 11-26-2009, 02:46 PM

thanks for the responses, folks!

i'm looking at the simpler 2 band layout over the 3 band because this is going in an OLP MM2, which is already mid heavy anyway, all i'm looking is a way to bring up the bass or treble in a pinch.

something else i've had on my mind is the battery compartment. the OLP doesn't have one (obviously), so would anyone happen to know of a good tutorial or simple walkthrough in routing the battery compartment, or ideas as to what to do with the battery?

if you can't tell, i'm new to active

skb5string · #8 11-26-2009, 02:52 PM

Hey, I was thinking of installing a OBP-1 into a Warwick Corvette STD fretless. Bubinga body...ebony Board. Has MEC Dynamic Correction Jazz Pups...Any thoughts on this? Am I gonna loose any mids? Its passive right now. Thanks

Kubs · #9 11-26-2009, 05:38 PM

Quote:

Originally Posted by ddnidd1

The OBP-1 has 18 db of boost. The Sadowsky has 13 db of boost. The frequency centers are identical and if I recall correctly both were designed by the same person.

aaa sorry, I swap it in my head

but....does it matter

Pickebass · #10 11-26-2009, 05:42 PM

Quote:

Originally Posted by ddnidd1

The OBP-1 has 18 db of boost. The Sadowsky has 13 db of boost. The frequency centers are identical and if I recall correctly both were designed by the same person.

Correct!! However, these do not sound alike!! I have both. Actually I have the outboard version of both and have both installed in basses with similar specs. VERY Different! I like the OBP-1 because the boost is more "round" than the Sadowsky. The high end is a little brittle of you boost it too much. The useful part of the treble boost is around halfway. I think the Sadowsky is a little bigger sounding but the aguilar is definitely warmer and more "old school" sounding