Benchmark Media Systems, Inc.
 

MPS-400 Mic-Pre System

The MPS-400 mic-pre system consists of four MP-4 microphone preamplifier modules installed in a 1 RU, 19" wide rack mount chassis. Each MP-4 has balanced inputs and outputs, with switchable phantom power and 20 dB input attenuator.

The MP-4 was designed to achieve the highest performance available in microphone pre-amplification. The MP-4 is ideal for the recordist who wants to maximize performance from analog or digital recorders using the superior microphone technologies that have emerged in the past few years. With the MP-4 at or close to the microphone, the signal amplitude can be immediately raised to line level and sent to the console or recorder. The results are a minimization of interference pickup from power lines, SCR stage lighting, etc., and allowing longer lines to be driven. The MP-4 allows existing consoles to be retained, since it now provides the state-of-the-art mic-pre performance that is most often missing from an otherwise good console.

When trying to describe the pristine character of the MP-4 the tried and true superlatives are left wanting. State-of-the-Art, though accurate, is so misused that its meaning has faded. One recording engineer recently said "I find it hard to believe all the improvement I hear could come from the microphone preamplifier, but that's all we've changed. Perhaps we tuned the piano better." Is it possible? You have to hear to believe! And you'd better do it before your competition does.

Features

  • Active balanced inputs and outputs
  • Gain range = +15 to +65 dB - Gain Switch Option (5dB steps)
  • Gain range = +17 to +73 dB - Gain Potentiometer Option
  • 20 dB attenuator increases range to -5 dB, and -2 dB respectively
  • THD @ 20 kHz (A=40 dB) = 0.0009%
  • 1 dB noise figure, EIN = -130 dBu (150 ohm)
  • DIM 100 = 0.0035%
  • 500 kHz bandwidth at all gain settings
  • Output Z = 60 ohm balanced, 30 ohm unbalanced
  • Maximum output level +28 dBu
  • Outstanding RF immunity
  • PS2000 power supply included

Price: $1395.00 Product has been discontinued.

Performance Graph [THD+N and Phase vs. Freq]  (size = 15 K)
Performance Graph [CCIF Intermod Distortion]  (size = 8 K)
Performance Graph [DIM vs. Amplitude]  (size = 10 K)

Two gain control options are now available.  The first is the switched gain option.  The gain range of the switched gain option is +15 to +65 dB in 5 dB steps or +30 to +50 dB in 2 dB steps.  This new option allows a much more precise gain matching from channel to channel.

The second option is the gain potentiometer.  It provides continuously variable gain from +18 to +73 dB.

The system is normally powered by a  PS-2000 high current, 120/240 volt supply.



MPS-420 - Four Channel Mic-Preamp System
with Stereo Mix and Headphone Amp

Features

The MPS-420 has the same features as the MPS-400, plus a stereo mix (four preamps to two outputs) and a front panel stereo headphone amp to monitor the mixed outputs. This system is excellent for location recording.

Two gain control options are now available.  The first is the switched gain option.  The gain range of the switched gain option is +15 to +65 dB in 5 dB steps or +30 to +50 dB in 2 dB steps.  This new option allows a much more precise gain matching from channel to channel. The second option is the gain potentiometer.  It provides continuously variable gain from +18 to +73 dB.

The system is powered by a PS2000 power supply (included).

  • Active balanced inputs and outputs
  • Gain range = +15 to +65 dB - Gain Switch Option (5dB steps)
  • Gain range = +17 to +73 dB - Gain Potentiometer Option 
  • 20 dB attenuator increases range to -5 dB, and -2 dB respectively
  • THD @ 20 kHz (A=40 dB) = 0.0009%
  • 1 dB noise figure, EIN = -130 dBu (150 ohm)
  • DIM 100 = 0.0035%
  • 500 kHz bandwidth at all gain settings
  • Output Z = 60 ohm balanced, 30 ohm unbalanced
  • Maximum output level +28 dBu
  • Outstanding RF immunity
  • External PS2000 power supply included in price

Price: $1595.00 Product has been discontinued.

MPS-400 and MPS-420 Manual 2316.08KB

©2007 Benchmark Media Systems, Inc.