北京橙音科技有限公司

 lake people F355 双通道电子管话放
  • lake people F355 双通道电子管话放
  • lake people F355 双通道电子管话放

    参考价格: ¥25000.00
    所在地区:北京
    上架时间:2012年09月27日
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    lake people F355 双通道电子管话放
     模拟输入:> 80 dB  (15 kHz / +60 dB) ,最大输入电平:> +21 dBu ( > 33 dBu with pad) ,增益:0---+66 dB (6 dB steps),增益准确度:+/- 0,25 dB ,低切:12 Hz---250 Hz (-3 dB) ,总谐波失真加噪声:< 0,001 % ,噪声比:-129 dB (60 dB gain) ,频率响应:10 Hz---30 kHz (-0,5 dB) ,内噪声带宽:200 kHz (+60 dB gain) ,最大输出电平:> +25 dBu (in 600 ohms )

     

    2-ch MICROPHONE PREAMP F355

     

    The LAKE PEOPLE MIC-AMP F355 is an extremely low-noise and fully featured microphone preamplifier with excellent specifications. Due to its versatile concept and high level capability it is also suitable for line signal boosting and balancing.

    The gain element of the standard version is a high quality instrumentation amplifier. As an option, MIC-AMP F355 may be equipped with a sophisticated Class-A frontend, built with discret components.

    Gain is controlled with two knobs per channel: a twelve-step rotary switch sets coarse gain in 6-dB steps from 0 to +66 dB. A centerdetented potentiometer allows fine adjustment within a range of +/- 5 dB. The lo-cut filter may be set individually from 10 to 250 Hz.

    Each channel is equipped with buttons for
    - Phantom powering
    - Pad
    - Phase reverse
    - (de-) activation of Gain-Fine adjust
    - (de-) activation of Lo-Cut control
    - Mute

    The state of all these buttons is reported by LEDs.

    In order to keep the signal path as pure as possible, the electronic components of the Gain-Fine control and the Lo-Cut filter stage may be removed completely with the aid of relais.

    Whilst switching on or off the phantom power, the outputs may be muted during 4 seconds.

    A sixteen-segment LED bargraph with semilogarithmical law displays the output level over a range of 36 dB. Display sensitivity can be adjusted to the users requirements with a trim located on the front panel.

    A clip LED starts flashing at levels above +20 dBu and thus reliably warns against distortion. The electronically balanced inputs and outputs are situated on the rear panel. Each channel is equipped with two outputs.


    Klicka på bilden om du vill se den i ett större format.

    Channel features:

    Electronically balanced input via XLR
    Gain 0 ... +66 dB switchable in 12 steps of 6 dB
    Fine-adjustment by center detent pot +/- 5 dB may be deactivated
    Lo-cut, 12 dB/oct., with variable frequency range 12...250 Hz may be deactivated
    Noise -129 dB at 60 dB gain
    Pad-switch for -12 dB level reduction
    Programmable intelligent muting system
    Switchable 48 V phantom powering
    Switchable phase reverse
    16-step ultra fast level meter, 0 … -36 dBr may be calibrated individually on the front panel
    Additional separate Clip Led
    2 x electronically balanced outputs via XLR
    Option: transformer balanced outputs
    Option: Ultra High Quality Class-A Frontend
    Option: GP-I/O e.g. for mute / rec light control

    Här kan du ladda hem en F355-manual (PDF 820 kB) på tyska och engelska.

     

    TECHNICAL DATA MIC-AMP F355
    Inputs:
    2, electr. balanced, 5 kohms
    Input CMRR: > 80 dB (@ 15 kHz / +60 dB)
    Max. input level: > +21 dBu ( > 33 dBu with pad)
    Gain coarse:: 0 ... +66 dB (6 dB steps)
    Gain fine: +/- 5 dB variable
    Gain accuracy: +/- 0,25 dB
    Lo-Cut: 12 Hz ... 250 Hz (-3 dB)
    THD+N: < 0,001 %
    Noise: -129 dB (@ 60 dB gain)
    Frequency range: 10 Hz … 30 kHz (-0,5 dB)
    Internal bandwidth: 200 kHz (@ +60 dB gain)
    Max. output level: > +25 dBu (in 600 ohms )
    Output CMRR: > 60 dB (@ 15 kHz)
    Output impedance: < 30 ohms
    Meter range: 0 … -36 dBr, adjustable
    Power supply: 115 / 230 VAC, 15 VA
    Dimensions: 483x44x166 mm (WxHxD), 19", 1U
    Case: Stainless steel
    Front: Front dark grey
    Options: Transformer balanced outputs
    Ultra High Quality Class-A Frontend
    GP-I/O e.g. for mute / rec light control