PreSonus Studio Channel

1 channel with Class A 12AX7 vacuum-tube mic/instrument preamplifier

• Gain control with +10 dB to +54 dB gain range
• Tube Drive control
• 48V phantom power switch
• 80 Hz high-pass filter
• -20 dB pad
• Polarity-reverse switch

Fully Variable VCA compressor

• Attack, Release, Ratio, Threshold, and (makeup) Gain
• Auto Attack/Release switch
• Soft/Hard Knee switch
• Bypass switch

3-band parametric equalizer

• Gain, Frequency, and Q controls (mid band)
• Gain and Frequency controls (low and high bands)
• Shelving/peak switches (low and high bands)
• Switchable pre-/post-compressor
• Bypass switch

Master level control

• Backlit VU meter
  • Gain Reduction to Meter switch (selects gain reduction or output gain)

Input/Output

• 1 unbalanced ¼” instrument input (front panel)
• 1 balanced ¼” line input
• 1 balanced XLR mic input
• 1 balanced ¼” line output
• 1 balanced XLR line output

Physical

• 1U 19” rack-mountable, rugged steel chassis
• Sealed, detented, metal rotary controls
• External 16 VAC power supply