Are you still rocking your EHBs with the East pre?
Yes !
in short: yes, go for it ! The East EQ is super clear ! the ibby slightly muddy in the low mids/lows, and overall somehow "undefined". That was my impression as well.
Sorry folks,.....looong post, caused by enthusiasm. 
starts here:
i have a second Bass now also with the same East pre setup:
( i run it as a semi-custom setup: a Uni-pre3 + a midsweep 01, combined to a 4band setup with TWO sweeping mids / prewired by John / so, comes as finished as a uni-pre 3 does )
The second Bass had also the stock Ibby pre inside for some period of time ( a 34", 5er, neckthru, Ovangkol )
So, i had also some time to play both pres, the East and the stock Ibby, side by side.
please note: i play NOT thru any amps + Cabs !!! only thru a Good tube pre setup, into mixer, ...then headphones or studio speakers ( 5" or 7" )
( also to mention, i run both basses E-hiB !
not shure if i ever played with the East EQ with a low B on the bass )
yes, my impression too, in both basses: the ibby onboard pre, has something "slightly muddy" to it "in the lower mids or lows" * ( * can´t distinguish these two ).
my main impression with the East EQ at first, and still remaining:
yes, it feels especially "clear sounding", beside all its versatility soundwise.
The highs do feel a bit harsh (as has been mentioned here at TB in other threads i stumbled upon), ....maybe tailored more for older pickups ? idk.
They could be a bit tamer for modern strong sounding PUps, thats true. But its absolutely manageable to deal with. Just adjust the high EQ very subtle !
it works for me ! .....no real complaints on this from my side.
@auvkey
so, you seem to be one of they few who does perceive the stock ibby pre as muddy/slightly muddy...? It seems, most folks do not. Then yes, anyway, head for the East EQ ! ( Can´t comment on any other aftermarket onboard pres/EQs)
i did similar settings with both pres.
I also tested the East pre by NOT touching one band, and just use it as a 3 band EQ.
I do run all possible settings, thats my nature having knobs at hand, .....since i´m no longer a bassist, but a sounddesign guy since 15 years or longer.
what i can tell, ......adjusting all these knobs is not everybodys cup of tee, for shure.
3 band ibby, or 3 ....or 4 band East.
I have been happy with the ibby 3 band too.
To have 3 Bands IS great anyway !
BUT, and that tells something:
i´m quicker to dial in "my sound" with the East EQ, ...even despite the fact that i run it as a 4 band setup.
The slightly muddyness, undifferentiatedness of the ibby, ...and the clarity of the East EQ, .......beeing factors here, IMHO.
Not everybody would like to have a 4 band setup, ..even not a 3 band setup,
But i personally would recommend to opt for the 4 band setup when taking an East uni-pre. At least if you seek "a big" versatility in tone !
it works like this:
i look at the Bass and low-mid sweep EQ as one pair !
Highs same: the hi-mid EQ and the high-EQ ( plus its switch to emphasize a certain freq) do work also like a pair !
They help each other out.
so, my 4 band setup is more like a 2 band setup, with two EQs each.
Giving an immense flexibility !
But, to each his own ! Folks playing with Amps might have diffferent needs, true !
No, modifications on the ehb1005sms needed to install "that" semi-custom 4 band setup !...just to mention.
just: its VERY dense ! ...and takes some upfront thinking and planning ( pictures are available on the EAst preamp thread)
Go for the East EQ ! its super super awesome.
I´m stoked till this day. Best sounding basses ever. lol
ahh, and then: take the highs a bit out by running pure Nickel strings ! or NPS
Thats the deal !
( in fact are my Pyramid PNs and my Fodera NPS similar sounding, vs. its brightness.
Its the perfect match with the East EQ on the ehb1005sms)
also to mention, and probably way underrated here:
with such an onboard EQ + good modern clean&clear PUPs, do you perceive *the differences* between strings, completly different !
its just another world that opens up.
a warning: but its NOT necessarily for people who seek a pure vintage P- Bass Tone.
.....yet, i would have claimed i can dial in any tone.
purists would disagree ! ( i have now myself a P- and a JP.....i can disagree now myself vs. myself, lol)
also: the "compression effect" with the stock ibby EQ is NOT given with the East EQ.
i personally liked that compression effect with my BigBlades, ....and even miss it a bit.
Did some other reading about East preamps in other basses, too, and it seems just about every time folks see it as an improvement, so I can't wait for mine.
