LSD2
The LSD-2 is comprised of two separate dual-membrane solid
state microphones contained within a single housing. Its capsules
are mounted in close proximity on a vertical axis - the upper cap-
sule assembly having the ability to rotate 270 degrees horizontally,
relative to the lower capsule. Two C&K three-way switches control
the polar response, high pass filtering and -10dB pad for each
capsule (The switches on the front of the body correspond to the
lower fixed capsule, while the switches 180° opposite on the back
of the mic control the rotating upper capsule). It is the combination
of capsule articulation and independent pattern switching which
allows a user of the LSD2 to achieve all manner of coincident pair
stereophonic recording techniques. Due to the close proximity of
the capsules, there is no phase cancellation resulting from time
delay between the two signals. This translates into excellent mono
compatibility.
The inner workings of the LSD-2 are essentially that of two Studio
Projects Model C3 microphones. The capsules are 1.06” (27mm)
diameter, dual membrane, Braunmuhl-Weber design. These are
independently coupled through low-noise amplifiers based on
FET driven discrete balanced output stages. The outer housing is
plated brass with a single layer brass wire mesh grill surrounding
the capsules.
Included with the LSD-2 microphone is a dedicated 7-pin XLR to
dual 3-pin XLR “Y” cable, magnum-sized foam windscreen, stan-
dard shockmount and carrying case.
LSD2 SPECIFICATIONS
Type: Stereo condenser microphone with vertically coincident
1.06” (27mm.) dual diaphragms.
Polar pattern: Cardioid, Omni directional Figure of 8
Frequency response: 30~20000Hz.
Sensitivity: 12mV/Pa=-38dB(0dB=1V/Pa).
Output impedance: <200 Ohm.
Load impedance: >1200 Ohm.
Max. SPL: 139/146dB SPL for 1% THD
@1000Hz(0dB/-10dB pad, 0dB SPL=0.00002Pa).
Noise: (Line)---28 dB (A weighted)---18 dB-A.
S/N ratio: 76 dB.
Power requirement: 24v.-52.5v. phantom power
Current Consumption: 2.5mA
Connector: Gold-plated 7-pin XLR
Size: 2.1” (53.34mm.) dia.
Weight: 1.8 lbs.
98
C4
The C4 is small diaphragm condenser microphone featuring inter-
changeable capsules, switchable -10dB pad/high pass filter and a
linear low-noise, solid state amplifier body. The microphone’s modular-
ity makes it a useful multi-purpose tool intended for all-around use on
stage, on location and in studios of all caliber.
As a cardioid (pressure gradient) microphone, the C4 provides excellent
pickup of on-axis sources while attenuating extraneous sound occurring
from around and behind the mic. This makes it ideal for close miking
of individual instruments where bleed from other nearby instruments or
sound is undesirable. The C4 cardioids also make excellent stereo pairs
for coincident and near-coincident miking techniques such as X-Y and
ORTF. Additionally the C4’s are quite useful on a drum kit as overheads
and on toms.
Used as an omni-directional (pressure) microphone, the C4 offers a
warm tonal response and is recommended especially for close miking in
favorable acoustical environments. There is very little off axis coloration
owing to the inherent physical properties of pressure capsules, and it is
this - combined with the low self-noise of the mic amplifier that makes
the C4 omni an excellent ambience mic –especially in pairs. In a good
room, a pair of omni’s can provide a vibrant and live feel to recordings,
which is not achievable through the use of directional microphones.
Recommended uses are, spaced pair omni, Jecklin disc (OSS), piano,
guitar, drum overheads and room miking. The C4 is available in pairs
with shockmounts, windscreens and case.
C4 SPECIFICATIONS
Type: Single diaphragm modular FET condenser microphone
Polar pattern: cardioid (CC1) Omni-directional (OC1)
Frequency response: 40Hz.~20kHz.
Sensitivity: 12m V/Pa. where 1 Pa = 94dB SPL
Output impedance: <200 Ohm.
Load impedance: >1200 Ohm.
Max SPL: 150 dB SPL with -10dB pad
Equivalent Noise: 16 DB SPL, (A-weighted per IEC268-15).
S/N ratio: 78 dB
Power requirement: P48 +/- 4V
Current consumption: <2 ma
Circuit: FET driven, discrete balanced output
Connector: Gold-plated 3-pin XLR .
Pad: -10 dB
Low cut: 6 dB/Octave at 250 Hz.
Length: 4.90”(124.5mm)
dia: .787” (20mm)
Weight: 3.3oz. (92g)
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