Specifications

36
Tube Microphone Amplifier
COLETTE
modular
Tube Microphone M 222
Powering Units NT 222 DC and NT 222 AC
– made exclusively for SCHOEPS by
The model M 222 is based on the name of the leg-
end ary SCHOEPS tube microphone M 221 B. However,
its circuit design does not merely recycle techniques
from the sixties; rather, it unites a first-quality tube with
fully up-to-date circuitry. For example the audio signal
path is transformerless, and the overall specifications
and performance have been significantly improved.
The dimensions and fittings of the M 222 amplifier are
the same as those of the CMC series. Any capsules of
Technical Specifications:
M 222:
Dimensions: diameter: 20 mm,
len gth: 116 mm (without capsule)
Output connector: XLR-5M (gold-plated contacts)
Maximum SPL: 142 dB-SPL (k=0.5%, with MK 2S
and without attenuation)
Output: transformerless, balanced
Surface finish: matte gray (g), nickel (ni)
NT 222 DC and NT 222 AC
Dimensions: 105 mm × 50 mm × 140 mm
Input: XLR-5F, balanced
Output: XLR-3M (balanced, can be operated
in unbalanced mode without loss
of level)
Max. output level: DC: 9.5 V
rms
(+19.6 dBV)
AC: 3 V
rms
(+9.5 dBV)
Max. cable length: more than 100 m, (TU BE DI RECT:
40 m total length)
Switches: ON / OFF, FIL TER 150 Hz (6 dB/Oct),
HAR MO NICS (for more “tube sound“),
(DC: 1 step, AC: 5 steps)
NT 222 DC:
Further switches: FIL TER 60 Hz (12 dB/Oct), GROUND
LIFT, GAIN (-10 dB(Tu be Di rect) / 0 / 10 / 20 / 30 dB)
Powering: with miniature mains adapter (included) or
other mains adapters offering 12 VDC, ca. 300 mA,
may be unstabilized (internal switching regulator);
galvanic isolation from ground (switchable)
NT 222 AC:
Further switches: ATT –10 dB, BAL. / UNBAL, P48
(activates cable driver, for cable lengths up to 200 m;
requires 12 V or 48 V phantom powering)
Powering: 90 – 260 V AC powering
KS 5 U:
XLR-5 microphone cable for use with NT 222 DC and
NT 222 AC, 5 m long, low capacitance, fle xi ble,
100% shielded, gold-pla ted contacts
M 222 with
MK 4 micro-
phone capsule
the Colette series can be used (including the BLM 03 Cg)
as well as all Active Accessories such as the CUT, KC,
RC and GVC.
The M 222 can be ordered with two different power-
ing units. With the NT 222 DC, an AC adapter is sup-
plied but portable operation from an external 12-Volt
supply (e.g. car battery) is possible as well; the output
is also switchable to line level.
The NT 222 AC has identical dimensions, but its
mains transformer is internal and the output is not
switchable to line level. Thanks to its universal output
circuitry it can be used with any microphone input,
whether phantom powered or not and whether bal-
anced or not. When connected to 48 V phantom power
(“P48 ON“), cable runs up to 200 m can be used.
“HARMONICS“ (see below) is adjustable in five steps.
The po wer sup ply of fers a “TU BE DI RECT“ switch
set ting in which the re are no se mi con duc tors in the
signal path what soe ver. A “HAR MO NICS“ switch alters
the Q-po int of the tu be, cau sing the gra du al incre a se
of har mo nics to set in earlier, to em pha si ze the ty pi cal
“tu be sound.“
Visit : www.M222.de
Sup plied equipment:
trans port case with:
tube microphone M 222
microphone cable KS 5U, 5 m long
powering unit NT 222 DC or NT 222 AC
popscreen B 5
stand clamp with swivel SG 20
only with NT 222 DC: mi ni a ture mains adapter,
90 – 260 V
Cap su les must be or de red se pa ra tely.