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PreSonus Studio Channel Tube Channel Strip, Mic Preamplifier, Compressor, Equalizer

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List Price: $359.95

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Product Highlights

  • 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
  • Variable VCA compressor
  • Auto Attack/Release switch
PreSonus : Picture 1 regular $299.00

About PreSonus

The Studio Channel is a professional channel strip combining Class A tube preamplifier, VCA-based compressor and three-band parametric equalizer perfect for the professional and project studio. Great for all types of microphones, instruments, keyboards and synths, the Studio Channel has the sonic power and flexibility to achieve any tone you can dream of - luscious in your face vocals, crystal clear acoustic guitars, fat solid bass guitar, dynamic acoustic piano, cracking snare, punchy bass, huge MPC tracks and more.

The Studio Channel noticeably outperforms preamplifiers that are built-in to most recording interfaces and affordable mixers. Add a VCA-based compressor and studio-grade equalizer to the class A tube preamp and you get not only big fat tube tonality but also complete control of your tone and sounds. Since much of the recording process is accomplished one track at a time, you need a signal path that can deliver a variety of high quality tones and sounds, which is why the Studio Channel is the perfect tool for any studio.

The Studio Channel has everything needed to deliver big tone. The preamplifier stage of the Studio Channel is based on the award winning BlueTube preamplifier with a high output 12AX7 vacuum tube operating on voltages double than all other preamplifiers in its class delivering high headroom and big tone. Dual control Gain and Tube Drive enables a wide range of sounds from transparent and clear to edgy and overdriven.

The compressor in the Studio Channel is a fully variable ultra-fast and smooth VCA-based circuit with all of the controls needed for a wide range of compression settings: ratio, threshold, attack, release and gain make up. The VCA-based compressor is known for musicality as well as ultra fast attack with the ability to tame the fastest transients. From slap bass, to snare drum, to vocals, the Studio Channel's compressor stage allows you to record as hot as needed without clipping giving you total dynamic control.

The equalizer in the Studio Channel is like a Swiss Army pocket knife, with the ability to carve out unwanted frequencies as well as tailor your tone to enhance your sound. The custom-designed amplifiers in the EQ deliver sweet-sounding gain/cut for ultra smooth highs, deep solid lows and clear midrange. The mid-band of the EQ section has variable Q for controlling the width around the center point of the selected frequency. High and low frequency bands give you the option for selecting peak/dip or shelving frequencies.

PreSonus 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
  • 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)
  • 1U 19" rack-mountable, rugged steel chassis
  • External 16 VAC power supply

PreSonus Specifications

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
1 digital expansion-card slot
Dynamic Range
> 115 dB
Frequency Response
10 Hz to 50 kHz
Internal Operating Level
0 dBu = 0 dB
Microphone Preamp Gain
-6 dB to +66 dB (+/- 10dB trim on line input)
Noise Floor
-96 dBu
-126 dB
THD + Noise (0% Tube Drive)
< 0.050%
THD + Noise (100% Tube Drive)
< 0.10%
Microphone Input Connector
Microphone Input Impedance
1.3 kohms
Instrument Input Connector
1/4" TS
Instrument Input Impedance
1 Mohms
Line Input Connector
1/4" TRS
Line Input Impedance
10 kohms
Phantom Power (switchable)
Pad (switchable)
0 dB / -20dB
Phase (switchable)
0 deg., 180 deg.
Hi-pass filter (switchable)
-3 dB at 80 Hz
Threshold (variable)
-40 dBu to +2- dBu
Ratio (variable)
1-10 (1:1 to 10:1)
Attack (variable)
0.1 to 200 ms
Release (variable)
0.05 ms to 3 S
Gain Make Up
-10 dB to +10 dB
Analog VU (Gain Reduction / Output)
Equalizer LF Band Controls
Frequency: Variable from 40 Hz to 500 kHz, Gain: Variable between ±10 dB, Q: 0.7 (on 'peak' setting)
Equalizer MF Band Controls
Frequency: Variable from 200 Hz to 3 kHz, Gain: Variable from -10 dB to +10 dB, Q: Variable from 0.7 to 2.5
Equalizer HF Band Controls
Frequency: Variable from 2 kHz to 20 kHz, Gain: Variable between ±10 dB Q: 0.7 (on 'peak' setting)
Master Output Fader
-80 dB to +10 dB
Master Output Connectors
XLR Balanced and 1/4" TRS Balanced/Unbalanced
Master Output Impedance
51 ohms
Master Metering (Output level)
Analog VU (-20 dBu to +6 dBu)
Master Metering (Gain Reduction)
Analog VU -20 dB to 0 dB
Master Output Headroom
+22 dBu
Power Supply Type
Power Supply Input
16 VAC / 1000mA
Power Requirements (Continuous)
External (country specific)
19" x 1.75" x 5.5" / 48.26 x 4.44 x 14 cm
5 lbs / 2.26 kg
Mfr #

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Reviewed by 1 customers


PreSonus Studio Channel


Using this mostly for bas guitar pre-amplification into a QSC stereo power amp. My sound became much fuller and clear. My previous pre-amp was coloring the sound and also creating secondary tones. It is amazing to hear the difference.

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