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LaChapell Audio 983S 2-Channel Tube Microphone Preamplifier with Equalizer

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$401 (17%)

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Based on the 583S, this two channel tube preamp brings LaChapell Audio quality to a single rack space.

The Model 983S is a high quality tube preamplifier that integrates many of the key features that distinguish LaChapell Audio studio gear in a package developed for personal and professional studios as well as live sound applications. Based on the popular 583S, the 983S offers 2 channels of tube amplification in a single rack space unit.

In addition to the low profile single rack space design, the 983S has an ultra-low output impedance for unparalleled sound transfer across long cable runs such as are common in theaters and remote systems.


  • Input and Output knobs to dial in the perfect balance of warmth and definition for any application
  • 48V Phantom Power on each channel
  • Easy to access and identify illuminated front panel pad, polarity, mute and phantom power switches
  • Front panel Hi-Z input with auto-switching
  • Low pass and high pass filters on each channel


  • Internal Gain: 0 to >72dB
  • THD+N: 0.25% (Variable)
  • Frequency Response: 10Hz to 70KHz
  • Max Output (1% THD+N): +26dBu
  • Typical EIN: -122dBu
  • Input Impedance: 1.5KOhm
  • Tube Compliment: 1 x 12AX7/ECC83

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