|It is obvious that the ToolMod system
can be used to combine any kind of modules in any desired way. The ToolMod sets
are some examples of special setups for a particular application. The picture
shows a ToolMod M/S stereo recording set with two mic pre's, M/S matrix and
The M/S Mic Pre with Equalizer ToolMod MMV
The ToolMod MMV is a very special combination for recording with
stereo microphones. It combines a matched pair of mic pre's, a M/S matrix with
stereo direction mixer and elliptic equalizer, and a 4-band M/S stereo equalizer.
In addition to the common stereo recording modes, the coincidence stereophony
and the spaced-apart stereophony, the ToolMod M/S Microphone Pre-Amp can also
deal with microphones in M/S setup, which is considered as the best way for stereophonic
microphone recording by many specialists.
The spaced-apart stereophony uses two separate microphones, placed
on the left and right side of the sound source. The implementation of this principle
is easy; no special microphones or other special equipment are needed. It offers
an easy way for wide and deep sounding stereo recording; however, the distance
between the microphones causes a frequency dependent phase difference between
the channels, which results in low mono compatibility and in the need to adjust
the microphones with consideration to the mono compatibility carefully.
Coincidence stereo does not have these problems. Usually, a stereo
microphone is used. The distance between the two capsules is very low; both capsules
are cardioids, arranged at an angle of approximately 90 %. The small distance
between the capsules results in negligible phase shift. The location of the sound
signals is only based on the intensity relation of the stereo channels. The disadvantage
of this principle is the frequency dependence of the directional characteristics.
Cardioid microphones change the form of the characteristics with the frequency.
With high frequencies, the characteristics is narrow. This causes a loss of high
frequencies for the signals at the center.
The M/S principle uses the two capsules of a stereo microphone differently.
One capsule is set to cardioid mode and directed to the center of the sound source.
This microphone represents the mono signal. The second microphone is set to bidirectional
characteristics; the 'figure-eight-pattern' is arranged at an angle of 90°.
A signal in the center will not result in an output signal of the bidirectional
microphone that represents the S channel. Since both sides of the bidirectional
mic are out of phase, a sound source on the left side results in a signal that
is in phase with the M channel while a sound source on right channel is out of
phase. Such a microphone setup delivers a M/S output signal instead of left and
right. Since the cardioid is
directed to the center of the sound source, there is no loss of high frequency
in that area. The disadvantage of this principle is that the output signal of
the microphones must be converted by a matrix from M/S format to left & right
standard stereo format. Here is information on the L/R
- M/S Conversion Basics. The
INPUT M/S switch of the TM130 M/S matrix takes care about that. The unit also
includes controls for the stereo base width, including a huge stereo enhancement
range, M/S based direction control as well as an elliptic equalizer. Read about
the details of these control on the TM130 M/S
A matched pair of TM101 Transformer
Mic Pres is used as input amplifiers. The M/S microphone Preamp is completed
by the TM134 M/S Stereo Equalizer,
that allows frequency dependent base width modification. Here is basic information
on M/S Equalization
Instead of the TM101 transformer Mic-Pre, a matched
pair of the discrete
Mic-Pre TM102 can be installed. The TM134 MS-Equalizer can
be replaces by the TM222 Stereo
Mastering Compressor or
by the TM132 M/S Stereo Compressor.
In combination with the TM212 Stereo
Compressor, an additional TM215 oder TM215b Stereo
Limiter instead of the TM134 M/S EQ is possible as well.
|M/S Microphone Amp
2 x Mic Pre TM101
MS Equalizer TM134
M/S Matrix TM130
1U Frame + Power Supply
|Price: € 3086.00
|without Power Supply and Cable the Price is reduced by € 246.00
excl. of VAT and Shipping
Other ToolMod Modules for the M/S Mic-Preamp:
M/S Mastering Compressor
Stereo Mastering Compressor
Stereo Peak Limiter