Here is a twist: two different and discrepant mic preamps in one box for
two different colors. By popular demand, one channel is the exact same micpre
as in our SLAM! with tubes and transformers. The second preamp is a fresh
"No Tubes" design from Hutch and is inspired by old British console preamps
with a tasty combination of "No Tubes" design with transformers.
This one is not a clone of anything preexisting. It is a new flavor but
reminiscent of that classic discrete sound. Both channels are designed around
the basic goal of “just plug a mic in and it sounds great.” The tube
channel excels on traditionally difficult sources like some bright guitars,
reed and brass, cymbals and some vocals. The "No Tubes" channel might be
more suited for smoother vocals, drums, bass and raunchy guitars, but you
never really knows which preamp is best for the job at hand until you try
them. At least you’ll have two qualified candidates in one handy 1U chassis.
There are a vast number of mic preamps available and today people choose
Mic Preamps based on the sound and performance for particular sources, different
mics and how those combinations work in individual songs. This approach
is valid but tends to require at least 3 or 4 different stereo preamps (almost
all are basic stereo) and that can be expensive when quality is involved
and certainly overkill for most simple overdubs when we get the chance to
choose the micpre. The Manley TNT is a new concept in microphone preamplification
for those who don't always need stereo everything but often need choices
and often need the best. Besides, you probably have a number of typical
stereo preamps and are still looking for that one killer preamp.
Manley Labs saw a need for a different unit that truly offered a rainbow
of high-end preamp colors at an affordable price. The "T" (Tubes) channel
starts off with the highly acclaimed vacuum tube micpre from the SLAM! that
is certainly a contender amongst the best cost-no-object tube preamps. The
"NT" (No Tubes) channel adds a no-compromise solid-state preamp that sets
new sonic standards. (Just trust us.) Because the solid-state side uses
two opposite topologies in tandem that are user controllable, it is like
getting two pre-amp 'sounds' on that side alone. It gets even better...
We participated in 3D Audio's "Preamps in Paradise" forum, which was a remarkable
opportunity to discuss preamps in depth and more importantly listen to what
top engineers liked, disliked, and desired in the next generation of preamps.
The number one request was variable input impedance somewhat tempered by
the number one complaint that so far, the typical gain changes associated
with that feature were not fun. We decided to offer variable impedance done
right, with typically near-zero gain changes. In fact, on the solid-state
side a current-mode preamp is used for the lowest impedance and a voltage
mode preamp is used for the highest impedances, and these two preamps are
appropriately blended for the medium impedance settings. All of the microphone
signal is used and almost none thrown away. Both the voltage-mode and current-mode
stages are truly optimized and when one changes impedance settings, one
hears the effects of how this changes microphone and cable characteristics
as opposed to other approaches which mostly take the preamp out of its ideal
conditions. In other words, doing variable impedance the right way required
fresh, new, and clever circuits and topologies. We also added a 3-way impedance
switch to the tube side that also compensates for the typical gain changes.
Another request the engineers requested was to have a switch to bypass the
output transformer. We went a step further and put that concept on a knob
so that the engineer could dial in the amount of "Iron" which is a novel
and inventive approach. With the knob centered at 12:00, you get the basic
untouched sound of the output transformer, and like an EQ for cut, turning
the knob counter-clockwise, reduces the effect of the transformer thru zero
and into the negative zone or 'anti-iron'. Of course, turning the knob clockwise
allows one to exaggerate the transformer effect to about triple. This is
not a simulation and truly is based on the actual output transformer and
leans more towards subtle than an obvious effect.
A third request involved Input and Output controls so that the engineer
could create some overdriven effects one day and keep it clean the next.
Again we saw this as an opportunity to figure this out and finally do it
right. We added a toggle switch to that idea and labeled it "Clean", "60's"
and "70's". "Clean" is very clean, very low noise, very accurate and very
musical. Both the "60's" and "70's" positions introduce discrete class-A
circuits for vintage colors, controlled overload characteristics and creative
opportunities. Essentially this gives a range from incredibly clean thru
subtle warmth or 3D-like thru to heavy grunge. Now you are beginning to
appreciate how a single 1U box can provide a rainbow of tone especially
when each aspect is done to Manley Labs' standards.
The MANLEY TNT is a remarkable and desirable tube preamp on one side and
its equivalent in solid-state on the other side. These are not simulations,
not samples, nor are they a clone or a toy. It is really good ol' analog
done right.
The first request for this preamp and what started the project, was two-part:
1) Provide the SLAM! Mic Pre, by itself at a great price and 2) don't abandon
the concept of a basic preamp where "one just plugs in a mic and it sounds
great" (without needing to adjust 6 controls). The solid-state side helps
keep the price reasonable while providing a much bigger range of colors
and options and while there a few more knobs and switches, their action
tends to be subtle and intuitive while difficult to dial in a bad setting.
You don't have to tweak, but if you want to, it's there without much possibility
of going wrong. Now there is a challenge: Give me a really useful range
of colors because I don't want to buy 6 preamps, yet it's gotta be fast
and safe to operate, and not too expensive, please, but you had better give
me Manley quality.
Of course, all the usual front panel features: phantom power, phase switch,
HP filters, LED overload and level indicators, and instrument inputs are
there. Phantom is soft-switched and shunt regulated for lowest noise. (There
are 6 low noise shunt regulators, and 5 standard regulators in the solid-state
side). The High Pass Filter is a new approach, but suffice it to say that
with it bypassed, the preamp is designed to have almost DC response (.01Hz)
at all gain settings. The LED meter is set up to indicate first and second
stage clipping, even though the output is capable of greater than +30 dBu
(70 volts peak to peak into 50 ohms from the solid-state side actually!).
While we are tossing out numbers, both the current mode and voltage mode
preamps sport EIN numbers of 130dB, very close to the theoretical minimum
noise possible. So this thing is gravely quiet!
And for the true connoisseurs, the preamps don't suffer at the highest (80
dB) or lowest (10 dB) gain settings, however you connoisseurs might be disappointed
that this level of performance won't be exclusive and only available for
the elite or very wealthy. We will announce the final price soon, but we're
for now just going to hint that it will not break the bank or drain yer
wallet...