Acoustic Image Clarus 2R Series 4 - 2013 - Black

Incredibly versatile amp, two channels, reverb/chorus, HP filter, notch filter, in great working order.

(from Acoustic Image web archives ...)

The Acoustic Image Clarus 2R Series 4 is an ultra-lightweight, highly transparent 2-channel instrument amplifier head designed primarily for acoustic and double bass players, but popular across many acoustic instruments.

Key Specifications & Features

• Power Output: 350 watts into 8 ohms, 650 watts into 4 ohms (2-ohm minimum load).
• Weight: Approximately 3.5 to 4 lbs.
• Channels: 2 identical, independent channels featuring combo 1/4" or XLR inputs with separately buffered impedances.
• EQ & Tone Shaping: 4-band EQ per channel (Low, Low-Mid, High-Mid, High) plus a sweepable low-cut filter (30–150 Hz at 12 dB/octave) and feedback-fighting notch/phase controls.
• Effects Section: Built-in digital effects including selectable reverbs, delay, chorus, and flange depending on the exact 2R (Reverb/Effects) configuration.
• I/O Capabilities: Balanced XLR line output with ground lift and pre/post EQ switches, parallel effects loops, headphone out, and dual Neutrik Speakon speaker outputs.
• Transparency: Known for an uncolored, clean, high-headroom sound that faithfully reproduces the acoustic properties of whatever instrument or pickup is plugged into it.