Extensive Tone Shaping and Real Tube Warmth

The ART Pro Channel III is a mono tube channel strip with two selectable microphone impedances, two compression voicings, a 4-band semi-parametric EQ, and an astounding 12Hz–100kHz frequency response. Designed for home recording musicians looking to get studio-quality tones and real tube warmth without breaking the bank, the ART Pro Channel III has become a smash hit here at Sweetwater, and we’re sure you’ll love it as well.

Convenient mic and instrument preamp

The Pro Channel III starts with a discrete FET input stage, up to 60dB of preamp gain, switchable mic impedances, and a variable low-cut filter from 10Hz to 250Hz. You’ll also get a hi-Z 1/4-inch front-panel input that overrides the rear-panel XLR input, making it handy to switch back and forth between mic and line-level signals for direct recording.

Opto or FET at the press of a button

Next, you can press the Voice button to switch between smooth tube/opto-style compression and its punchy FET compressor cousin. Both compressors can be shaped with variable Threshold, Ratio, Attack, and Release controls. Additionally, the compressor can be placed before or after the EQ section in your signal chain for your preferred style of tracking.

Highly flexible 4-band parametric EQ

Finally, the ART Pro Channel III’s EQ section features a switchable low-shelf frequency, variable low-mid and high-mid frequencies with over four octaves per band, and a 12kHz high shelf. Also, the EQ (and the compressor) have independent bypass so that you can dial in your sounds. Add it all up, and you have some serious tone-shaping capabilities that can work with any voice or instrument.

Key Features
Class A FET Input Microphone Preamp
Hand selected 12AT7 Tube
Selectable Microphone Impedance
1/4” High Z Input on Front Panel
Compressor and EQ Sections with Switchable Order and Independent Bypass
Tube/Opto and FET Compressor Voicings
4-Band Semi-Parametric EQ and Variable Low Cut Filter
Insert Point after Preamp Stage
+4 dBu or -10 dBv Operation
Universal Internal Power Supply

Tech Specs
Frequency Response 12 Hz to 100 kHz (+0, -1 dB)
Dynamic Range >110 dB A-Weighted
CMRR >90 dB
THD <0.009% (Typical @ 1k)
Equivalent Input Noise -128 dBu (Mic / Line) -109 dBu (Instrument)
Maximum Insert Input Level +22 dBu (+4 dBu Mode)

+13 dBu (-10 dBV Mode) Balanced

Maximum Instrument Input +23 dBu (+4 dBu Mode) +14 dBu (-10 dBV mode) Unbalanced
Input Impedance 600Ω / 47 kΩ (XLR) >800 kΩ (Instrument) 7.5 kΩ (Insert)
Maximum Output Level) +26 dBu (Balanced), +20 dBu (Unbalanced)
Output Impedance < 47Ω (XLR)
Maximum Gain 40 dB Variable Input Gain 20 dB Switchable Boost

15 dB Variable Output Gain

+75 dB Total

Low Cut Filter 10 Hz – 250 Hz (Single Pole)
Compressor Attack 0.25 ms – 100 ms
Compressor Release 0.1 s – 3 s
Compressor Ratio 1.25:1 – 20:1
Low Cut Filter 10 Hz – 250 Hz (Single Pole)
Parametric EQ 40 Hz / 120 Hz (Low) 20 Hz – 2 kHz (Lo-Mid)

200 Hz – 20 kHz (Hi-Mid)

Power Requirements 100 – 240 V 50 Hz / 60 Hz 25 W
Dimensions (HWD) 8.9 cm x 48.3 cm x 23.3 cm
Weight 4.76 kg