PreSonus Studio Channel Vacuum-Tube Channel Strip

The Studio Channel from PreSonus delivers great sound for virtually any type of recording or live music. Featuring tube preamplification, a VCA-based compressor, and three-band EQ, this channel strip delivers a huge variety of timbres. Produce luscious, in-your-face vocals, dynamic acoustic piano, and fat, solid bass guitar, not to mention crystal-clear acoustic guitars and cracking snare.

From slap bass, to snare drum, to vocals, the Studio Channel’s compressor allows you to record blazing-hot signals with accurate dynamics control. This channel strip’s three-band equalizer gives you the precision to carve out unwanted frequencies as well as tailor your tone to enhance your sound. Custom-designed amplifiers deliver sweet-sounding gain and cut for smooth highs; deep, solid lows; and clear midrange.

PreSonus Studio Channel Features

• 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)
• 1 unbalanced 1/4” instrument input (front panel)
• 1 balanced 1/4” line input
• 1 balanced XLR mic input
• 1 balanced 1/4” line output
• 1 balanced XLR line output
• 1U 19” rack-mountable, rugged steel chassis
• Sealed, detented, metal rotary controls
• External 16 VAC power supply

• Studio Channel vacuum-tube channel strip1
• Power supply1

• Channels1
• Dynamic Range>115dB
• Frequency Response10Hz to 50kHz
• Internal Operating Level0dBu = 0dB
• Microphone Preamp
  • Gain: -6dB to +66dB (±10dB trim on line input)
  • Noise Floor: -96dBu
  • EIN: -126dB
  • THD+Noise
  • 0% Tube Drive: <0.050%
  • 100% Tube Drive: <0.10%
  • Microphone Input Connector: XLR
  • Microphone Input Impedance: 1.3kΩ
  • Instrument Input Connector: 1/4" TS
  • Instrument Input Impedance: 1MΩ
  • Line Input Connector: 1/4" TRS
  • Line Input Impedance: 10kΩ
  • Phantom Power (switchable): +48V
  • Pad (switchable): 0dB / -20dB
  • Phase (switchable): 0°, 180°
  • High-Pass Filter (switchable): -3dB at 80Hz
• Compressor
  • Threshold (variable): -40dBu to +-2dBu
  • Ratio (variable): 1-10 (1:1 to 10:1)
  • Attack (variable): 0.1 to 200 ms
  • Release (variable): 0.05 ms to 3S
  • Gain Makeup: -10dB to +10dB
  • Metering: Analog VU (Gain Reduction/Output)
• Equalizer
  • LF Band Controls
  • Frequency: variable from 40Hz to 500kHz
  • Gain: variable between ±10dB
  • Q: 0.7 (on Peak setting)
  • MF Band Controls
  • Frequency: variable from 200Hz to 3kHz
  • Gain: variable from -10dB to +10dB
  • Q: variable from 0.7 to 2.5
  • HF Band Controls
  • Frequency: variable from 2kHz to 20kHz
  • Gain: variable between ±10dB
  • Q: 0.7 (on Peak setting)
• Master
  • Output Fader: -80dB to +10dB
  • Output Connectors: XLR balanced and 1/4" TRS balanced/unbalanced
  • Output Impedance: 51Ω
  • Metering (Output level): Analog VU (-20dBu to +6dBu)
  • Metering (Gain Reduction): Analog VU -20dB to 0dB
  • Output Headroom: +22dBu
• Power Supply
  • Type: linear
  • Input: 12 VAC/1000mA
  • Power Requirements (continuous): 16W
  • Transformer: external
• Dimensions (HxDxW)1.75" x 5.5" x 19" (1U rackmount)
• Weight5 pounds