for those of you who are not able to get your hands on lots of preamps
to compare, perhaps this may assist you a bit. over the past few
months i have had the opportunity to do some comparative testing of a
pair of grace 101s, an RNP, a millennia media HV3B, a vintech 1272,
and a sytek mpx-4aii (with two channels of burr brown opamps). i used
a mackie vlz pro mixer as the baseline for all comparisons since
almost everyone is familiar with those units. i tested the preamps
using pairs of schoeps cmc64s and akg c480s, on a kimball baby grand
piano, a gold powell flute, and an old gibson j40 (thanks, bob). all
tracks went straight from the pre to a roland vs1880, and monitored on
tannoy active reveals with no eq and no effects. here were my results
- take 'em with a grain of salt.


grace 101 ($500 per channel) - clean all the way up and down, with a
slight de-emphasis on the low mids. way sweeter than than the RNP,
but far less punch. not as smooth overall as the HV3B. flute was a
bit thin, but very clean and easily fixed wiht a touch of eq, piano
was really nice, acoustic guitar was super nice, but again a little
thin in lower mids. a quite different sound than the mackie, which
was grainy in the upper mids by comparison. the vintech was so
different, it hardly makes sense to compare them. the sytek rivalled
the grace unit in general, though the grace got the nod for overall
clarity, especially on the piano tracks. the grace is not a pre i
would select for a male rock vocal, but it is damn nice on acoustic
stuff, and an excellent choice for classical applications. not quite
in the same league as the millennia media, IMHO. build quality is a
bit lacking compared to the more robust grace 201, but this is what
makes this unit affordable.

vintech 1272 ($650 per channel) - there is much to love about this
unit, but it is surely not what i would select for the classical and
chamber music that i do. this is the only transformer-based unit in
the group, and you can tell immediately how much difference a
transformer can make compared to an all solid-state unit. the 1272
has lots of punch in the lower mids, highs are noticeably rollled off,
bottom end is loose sounding on piano. acoustic guitar was full and
warm, but not too clean in the highs. flute was warm and full and
useable, but more of a rock sound than a classical sound. this is a
wonderful pre for male rock/pop vocals, and i have to admit, the build
quality is outstanding - a very handsome unit. not a good choice for
classical acoustic instruments, IMHO, but i can see many places where
it would be perfect for pop studio applications - for example, matched
with a pair of akg 451s as OHs, or for warming up a synth, or with a
vintage C12 for that classic neve vocal sound.

mackie vlz pro ($50 per channel) - pretty useable, and overall, and
amazing performance vs price. - a little more bottom than the grace
101 on piano, though looser. quite a bit grainier in the 5-8k range
compared to the grace and HV3. in fact, the mackie is grainy compared
to very other pre tested here. i would still choose the mackie over
the 1272 for most acoustic applications, but at a certain sacrifice.
mackie was grainy and not as clean in the highs as the sytek,
otherwise sounds pretty similar to the sytek, but the much lessened
grain and the clean high end of the sytek make it a clear winner over
the mackie. the mackie also sounds pretty close to the RNP on first
listen, except the RNP has a much more agressive mid range, almost
like a wide-q eq bump there, and the mackie is noticeably grainier
than the RNP as you listen more closely. anyway you look at it
though, the mackie is an outstanding piece of gear for the money, and
the preamps are useable for almost anything.

RNP ($250 per channel) - a pretty nice little unit, though it looks
pretty cheesy. (i have to admit i am not a fan of the RNC, for all of
its ardent advocates, though i tend to never use any outboard
compression anyway.) this pre has a fairly distinct sound - it is
rather punchy sounding due to it midrange emphasis, but the bottom is
tighter than the 1272, and the highs are fairly clean, though not near
as smooth as the HV3 nor the grace, and not quite as smooth as the BB
channels on the sytek. this seems to be an excellent overall preamp
at this price point, and seems very suited to lots of pop/rock
applications. not quite as clean and smooth as i might want for
classical, especially in comparison to the HV3 and the grace, but
certainly a clear improvement over the comparatively grainy mackie.
the sytek was pretty similar to the RNP in several ways, but the sytek
has a bit smoother midrange, and perhaps just slightly cleaner in the
upper mids (on the BB channels). i could probably use the RNP for
many things, and i can see why this little unit is so popular - i like
it.

millennia media HV3B ($850 per channel) - a clear winner in almost
every way - this one is very smooth across the entire freq range, yet
retains an amazing clarity in the upper end, bottom end is tight and
controlled - wish i had 8 channels of this stuff. piano is perfect
with the schoeps, flute was clean and clear with both schoeps and
c480s (i could hardly tell the mics apart), acoustic guitar just jumps
out of the machine. less high end emphasis than the grace, though
oddly just as clear. this is the best preamp i have ever used. (HV3B
was courtesy of john lagrou).

sytek (about $215 per channel) - i am pretty impressed with this unit.
even the unmodified channels were an improvement over the mackie. i
found the sytek yeilded a very nice clean top end, especially on the
Burr Brown channels, that was more pronounced than the top end on the
mackie - the mackie seemed rolled off in the highs in comparison, but
even at that the top end on the mackie was still grainier and harsher
than the sytek. the BB channels were not as smooth as the HV3, nor
the grace, espacially in the highs, but the sytek was fuller in the
low mids than the grace. the unit was clearly cleaner and smoother
than the mackie, and very similar to the RNP except for the more
emphasized mid on the RNP, which makes it sound much more agressive
than the sytek. this was very noticeable on the piano tracks, where
the RNP gave a nice clean punchy rock sound, and the sytek gave a more
balanced classical sound - both were good - just a matter of choice
depending on the sound you are after. high end was simialr to the
grace, but not quite as delicate. flute was not as smooth on the
sytek as on the HV3 or the grace, but it was very useable, and clearly
an improvement over the mackie - sounded pretty close to the RNP for
this application. acoustic guitar was clean and distinct and full,
but again, not as smooth as the HV3, and not as punchy as the RNP -
sounded pretty close to the grace on this appllication, but the grace
was a little cleaner and tighter, and the sytek had a little more
empahsis on the lower mids. this is a very good overall unit that can
be used for many acoustic applications with excellent results, and
other than the RNP i havent seen anything that can touch it at its
price point. in this price range, i'd probably choose the RNP for
most rock/pop apps, and choose the sytek for more classical
applications.