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ART Pro Channel II Tube Preamp-OPTO Compressor-EQ
ART Pro Channel II Tube Preamp-OPTO Compressor-EQART Pro Channel II Tube Preamp-OPTO Compressor-EQ
  • Availability: In Stock
  • Brand: ART
  • Product Code: ART Pro Channel II

A Super-affordable Channel Strip!

The ART Pro Channel II™ uses second-generation discrete Class-A microphone preamp to provide clean quiet gain while maintaining incredible transparency. A powerful dynamics processor subtly controls transients and noise of the most demanding sources.

The ART Pro Channel II™ 's semi-parametric EQ offers wide tune-ability and can be patched before OR after the dynamics processor. Separate rear-mounted insert points allow patching in external signal processing gear immediately after the Mic preamp and before the EQ and dynamics processor. Both analog and LED meters provide a detailed indication of audio levels.

An excellent channel strip for all kinds of microphones

When ART designed the Pro Channel II, they built it with a wide range of applications in mind. That's why they gave it with a set of highly flexible inputs. The preamp lets you select the ideal impedance for your microphone, and a variable highpass filter lets you roll off lows starting anywhere between 10Hz and 250Hz. A +20dB toggle lets you kick up the gain (perfect for ribbon mics), and you can even spice up the Pro Channel II's tone by upping the tube voltage.

Perfect for processing guitar and bass

ART's Pro Channel II is also great for instruments. Plug your guitar or bass into its high-impedance input, and it instantly bypasses the mic pre. That gives you full access to Pro Channel's compressor and EQ sections without coloring your sound.

Powerful compressor section lets you take control of your dynamics

The compressor in ART's Pro Channel II is modeled after the classic optical compressors of the '60s and '70s. On its more gentle settings, it lets you ease off changes in volume - perfect for smoothing out vocals and evening out the levels of your stems. You can turn up the ratio for limiting, and individual attack and release controls also make the Pro Channel II's compressor great for shaping the transients of bass lines, kick drums, and much more.

Flexible semi-parametric equalizer lets you tweak your sound

If you're looking for console-style control over your sound, then you're going to love the Pro Channel II's equalizer section. ART gave this channel strip a highly flexible semi-parametric EQ, complete with selectable low and high shelving bands and a pair of adjustable mid-frequency bands. This let you use the Pro Channel II to get great sound even out of the most demanding sources.

ART Pro Channel II Channel Strip Features:

  • This highly versatile channel strip lets you get excellent sound out of a wide range of sources

  • One of the most affordable complete channel strips available

  • Tube microphone preamplifier gives you transparent sound with the perfect touch of warmth

  • Variable impedance input lets you get the most out of any microphone

  • hi-Z instrument input bypasses the mic pre, letting you process guitar and bass directly, without extra coloration

  • Onboard opto compressor provides ultra-smooth dynamics processing

  • A full set of compression controls lets you shape transients and take hold of your dynamics

  • Console-style equalizer lets you tweak your tone to perfection

  • Pre-compressor and pre-equalizer insert points make integrating your outboard gear easy

  • Analog VU meter and LED level displays let you keep an eye on your volume and gain reduction

  • Balanced XLR and unbalanced 1/4" outputs let you connect the Pro Channel II to virtually any interface, mixer, or amplifier

  • Fully Featured discrete class "A" Tube Microphone Preamplifier

  • 1/4" High Z input on the front panel

  • Selectable plate Voltage

  • Smooth musical sounding Optical Compressor

  • Separate Attack and Release controls

  • Auto/Manual Attack/Release switch

  • Parametric EQ

  • Large VU and LED meters

  • Multi section clip monitor LED

  • Selectable Source switches for VU signal monitoring of any section of the unit

  • Two insert loops

  • +4/-10 dB switch for optimal signal output levels

  • Toroidal power transformer for low noise


Input Impedance

  • Mic: 150 to 3.4K Ohms, variable

  • Instrument: 2.5M Ohms

  • Preamp Insert: .5K Ohms

Output Impedance

  • Balanced Output: 600 Ohms balanced

  • Unbalanced Output: 300 Ohms

  • Insert Outputs: 300 Ohms

Frequency Response

  • Analog In to Analog Out: 12Hz to 100KHz +0, -1dB

  • THD @ 1 KHz: <0.15% typical

  • THD @ to to 20 KHz: <0.033% typical

Equivalent Input Noise

  • Mic/Line: -128dBu, Input shortened, Max gain, "A" weighted

  • Instrument: -109 dBu, Input shortened, Max gain, "A" weighted

Maximum Input Level

  • Mic: +18dBu balanced

  • Instrument: +15 dBu

Maximum Gain

  • Mic: 70dB (XLR to balanced output)

  • Instrument: 64 dB (1/4" to balanced output

Maximum Output Level

  • Balanced: +24 dBu

  • Unbalanced: +20 dBu

  • Output Level At Meter 0 VU: +4 dBu/-10dBV


  • Microphone Gain: 0 dB to +56 dB

  • Instrument Gain: +3 dB to +50 dB

  • Low Cut Filter: 0 - 250 Hz, 1-pole, 6 dB/Octave


  • Boost/Cut: +/- 12 dB on each band

  • Low Freq. Tuning: 40 / 120 Hz Selectable

  • MID 1 Freq. Tuning: 20 Hz to 2 KHz continuously variable

  • MID 2 Freq. Tuning: 200 Hz to 20 KHz continuously variable

  • High Freq. Tuning: 6 KHz / 18 KHz Selectable

Compressor / Limiter

  • Attack Time: 250 uSec. to 100 mSec.

  • Release Time: 00 mSec to 3 Sec.

  • Compression Ratio: 2:1 to 30:1

  • Dimensions (H x W x D - in): 3.5 x 19.0 x 9.2

  • Dimensions (cm): 8.9 x 48.3 x 23.3

  • Weight (lbs/kg): 11/5

  • Power Requirements: USA - 105 to 125 VAC/ 60 Hz
    Export units configured for country of destination.

Note: 0 dBu = 0.775 VRMS, 0 dBV = 1 VRMS

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