PMS125

OCTAL PREAMP

[Current Store(ja)] [Selection Guide][System Diagram][Catalog]

8ch microphone, line amplifier
Redundant power supply
Transformer for input and output
Input impedance switch
HPF
10 points level meters
High-quality sound 19 inches 3U size
48V phantom power supply
19 inches 3U size

PMS125 is 8ch microphone line amplifier configured with a 19 inches 3U size frame.
The Jensen carefully made transformer which it adopted for input and output realizes superior CMRR (common-mode signal rejection ratio) and reliable signal transmission.
Moreover, by the design that careful consideration was accomplished, it shows the best performance with superior S/N, high-quality sound in a studio, a hall, a stadium and every spot such as the broadcast.

“INPUT”
The input impedance can choose 150 Ω or 600 Ω.
An input sensitivity level corresponding to each is indicated in a gain trim.
Moreover, it can supply the +48V power for condenser microphones.

“OUTPUT”
+4dBu or -20dBu can set the output reference level with an internal switch.
(in factory +4)

“HPF”
It can cut an unnecessary low frequency noise in implemented 70Hz, a high pass filter of 24dB/oct sharply.

“METER”
It allows monitoring of the output level to -20 to +3dB in 10 points of LED bar graph.

“PSU”
A make contact by the MOS relay is output in case of trouble to each redundancy power supply unit.

“Others”
Please refer about the change of input impedance and the gain.

■ Specifications
•INPUTS 1-8: Transformer balanced 150Ω / 600Ω, XLR3-F
•OUTPUTS 1-8: Transformer balanced 600Ω, XLR3-F
•High Gain trim: -70dBm~-8dBm(z=150Ω)
•Low Gain trim: -58dBm~+4dBm(z=600Ω)
•HPF: 70Hz 24dB/oct
•Phantom power: +48V
•FREQ.RESPONSE: 20 to 20kHz ±1dB
•THD: <0.01% at 1kHz ref.level
•Power fail: Photo-MOS RELAY, Dsub9-M (#4-40)
•DIMENSIONS: 483Wx132.5Hx350D 6kg

  Power Fail DSUB9-M
01 contact-a   06 contact-b
02             07
03             08
04             09
05

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