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PreSonus

PreSonus Studio Channel Vacuum

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The PreSonus® Studio Channel channel strip is a wonderful studio tool that's great for live performance, too. Featuring a tube preamp, VCA-based compressor, and three-band EQ, it delivers a huge variety of timbres. With XLR mic, balanced ¼-inch line, and unbalanced ¼-inch instrument inputs and balanced XLR and ¼-inch outputs, you can connect it to almost any audio interface, amp or PA.

The Class A preamp starts with a high-output 12AX7 tube for lots of headroom and big tone. Gain and Tube Drive controls enable a wide range of sounds, from transparent and clear to edgy and overdriven. A -20 dB pad, 80 Hz high-pass filter and polarity reverse let you tweak your signals

View Product Features

  • Class A Tube Preamp: Features a high-output 12AX7 vacuum tube for rich, warm tone.
  • Variable Tube Drive: Controls the amount of tube saturation, from subtle warmth to edgy overdrive.
  • VCA Compressor: Ultra-fast VCA-based compression circuit effectively tames transients.
  • 3-Band Parametric EQ: Precise 3-band equalizer, with sweepable mid-band.
  • Flexible Signal Routing: EQ can be switched to operate pre or post compressor.
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About the PreSonus Studio Channel Vacuum

The PreSonus Studio Channel is a versatile and musical channel strip that integrates a studio-grade microphone preamplifier, a tube-driven compressor, and a comprehensive equalizer into a single 1U rackmount unit. It is engineered to deliver the warmth and character of classic analog recording gear with the reliability and connectivity required in modern hybrid studios. The signal path begins with a pristine, high-headroom mic preamp featuring +48V phantom power, suitable for capturing the full dynamic range and subtle nuances of any microphone, from delicate condensers to robust dynamics. This clean foundation then passes through a genuine 12AX7 dual-triode vacuum tube stage, where engineers can introduce anything from a subtle harmonic richness to pronounced, musical saturation, imparting a vintage vibe that elevates vocals, guitars, and other instruments in the mix.

The optical compressor section is designed for intuitive, musical dynamics control. It offers flexible adjustment over threshold, ratio, attack, and release, complemented by a clear gain reduction meter. This compressor can transparently manage levels or be pushed to add punch and sustain, making it invaluable for taming vocal dynamics, thickening bass lines, or glueing drum bus elements. The three-band EQ provides powerful tonal shaping with a sweepable mid-frequency control, allowing for precise surgical cuts or broad tonal enhancements. Additional features include a switchable 75Hz high-pass filter to clean up low-end mud and a dedicated de-esser for controlling vocal sibilance, rounding out its utility as a complete vocal and instrument processing chain.

Housed in a durable steel chassis, the Studio Channel is built for daily use in both project and professional studio environments. Its straightforward layout and robust construction make it an accessible yet powerful tool for engineers seeking an all-in-one analog solution. By offering a blend of transparent amplification, tube warmth, musical compression, and flexible EQ, the PreSonus Studio Channel serves as a cornerstone outboard processor, capable of adding professional polish and analog character to any source before it reaches the digital audio workstation.

Key Features

  • Class A Tube Preamp: Features a high-output 12AX7 vacuum tube for rich, warm tone.
  • Variable Tube Drive: Controls the amount of tube saturation, from subtle warmth to edgy overdrive.
  • VCA Compressor: Ultra-fast VCA-based compression circuit effectively tames transients.
  • 3-Band Parametric EQ: Precise 3-band equalizer, with sweepable mid-band.
  • Flexible Signal Routing: EQ can be switched to operate pre or post compressor.

PreSonus Studio Channel Vacuum Specs

Microphone Preamplifier
Gain
+76 dB Maximum
Input Impedance
1.5 kΩ
Phantom Power
+48V Switchable
DI Input
Yes (Front Panel 1/4")
Tube & Dynamics
Tube Type
12AX7/ECC83
Compressor Type
Opto-electrical
Compression Ratio
1.1:1 to Infinity:1
Attack Range
0.1 ms to 100 ms
Release Range
50 ms to 3 seconds
Equalization
EQ Type
3-Band with Sweepable Mid
High Band
+/- 15 dB @ 12 kHz
Mid Band
+/- 15 dB (150 Hz - 5 kHz Sweep)
Low Band
+/- 15 dB @ 80 Hz
Filters & Output
High-Pass Filter
75 Hz, 18 dB/octave
De-Esser
Yes, Dedicated Control
Maximum Output
+22 dBu
Output Connectors
XLR & 1/4" TRS (Balanced)
Physical & Power
Power Supply
Internal
Rack Units
1U
Dimensions (WxDxH)
483 x 178 x 44 mm
Weight
2.7 kg
Operating Temperature
0°C to 40°C

Key Features

  • Class A Tube Preamp: Features a high-output 12AX7 vacuum tube for rich, warm tone.
  • Variable Tube Drive: Controls the amount of tube saturation, from subtle warmth to edgy overdrive.
  • VCA Compressor: Ultra-fast VCA-based compression circuit effectively tames transients.
  • 3-Band Parametric EQ: Precise 3-band equalizer, with sweepable mid-band.
  • Flexible Signal Routing: EQ can be switched to operate pre or post compressor.
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