The ART Pro Channel III is a channel strip with selectable microphone impedance, two compression voicings, and semi-parametric EQ. It was designed for recording musicians seeking an affordable character preamp with extensive tone shaping and real tube warmth.

The Pro Channel III features a discrete FET input stage and up to 60 db of preamp gain. Switchable impedance optimizes the input for various microphones, and the variable low cut filter can eliminate rumble, tame plosives, and tighten bass.

Connecting to the front 1/4" input will override the rear XLR input, so you can record direct tracks without disconnecting your mic/line signal.

The compressor section features variable threshold, ratio, attack, and release controls, and can be placed before or after the EQ section in the signal path. Press the Voice button to switch between smooth tube/opto and punchy FET compressor modes.

The equalizer section features a switchable low shelf frequency, variable low-mid and high-mid frequencies with over 4 octaves of range per band, and a 12 kHz high shelf that can soften sizzle or boost brilliance, so you can sculpt and enhance.

MPN: ProChannelIII

- Discrete FET input stage and up to 60 db of preamp gain
- Switchable Microphone impedance options
- Low cut filter eliminates rumble, tame plosives, and tightens bass
- Compressor section has variable threshold, ratio, attack, and release controls
- Equalizer section has switchable low shelf frequency, variable low-mid and high-mid frequencies with over 4 octaves of range per band

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) 3.5” x 19” x 9.2”

8.9 cm x 48.3 cm x 23.3 cm
Weight 10.5 lbs / 4.76 kg