Acoustic Image Clarus amplifier

Clarus 1: 400W with one channel and Clarus+: 800W with two channels…plus effects

(or Get the complete Products Brochure and the new models like the Clarus 2R or the Focus)

Clarus 2R Model 501 IA, List price $ 1099

General description

  • Extended frequency range, high fidelity sound
  • Light weight (<5 lbs.), small size (10.2 x 8.2 x 3.5)
  • Unique, slanted front chassis with built-in handles on side rails (Clarus 1) or capable of being mounted in our Coda+ or Corus+ speaker cabinets (Clarus+)
  • Combo jack input (either 1/4″ or XLR)
  • Phantom power on XLR input
  • Three-band EQ preamp section per channel
  • Input and master level controls
  • Effects loop with return level control per channel

    Clarus 1
  • Switchable notch/low cut filter per channel
  • Balanced direct out with ground lift

    Clarus+: $1,149 list
  • Digital effects with 6 presets and level control (Clarus+)
  • Mute switch and pre/post EQ for direct out
  • Stereo capable with external power amp (Clarus+)
  • Headphone output (Clarus+)
  • 400 W switch mode power amplifier (Clarus 1) or 800W (Clarus+)
  • Switchable dual voltage operation (115/230V)
  • Dual speaker outputs via Speakon connectors
  • Comes with padded case, Speakon to 1/4 inch adapator

Design Goals

The Clarus amps were designed to accurately reproduce the sound of all acoustic and electric instruments without compromise or the size and weight that has traditionally be associated with high quality amplification.

Unlike other solid state amps, the Clarus has a distinct, warm sound, more like a tube amp. In addition, the Clarus is not “voiced” like many electronic instrument amps. So its frequency response is flat. This means that, with a high quality speaker system (like the Contra EX), what you hear is your sound of your instrument. The tonal shaping characteristics of the three-band EQ are sufficient to overcome room acoustics or to shape your sound without adding noise to the signal.

At the heart of the Clarus is a powerful Class D switch mode amplifier that runs cool yet delivers up to 1000 Watts of clean, full spectrum power into speaker loads as low as 2 ohms. Other features include a parallel effects loop with a return level control, a selectable notch or low cut filter for feedback or “boominess” elimination and a balanced direct out with ground lift and pre/post EQ selection to allow connection to a mixing board for PA augmentation or recording. A switch for dual voltage operation (115/230V, 50/60 Hz), a detachable power cord and a padded gig bag with shoulder strap make the unit convenient for the travelling musician.

Clarus amps are for the working player looking for exceptionally clean, natural sound, with wide frequency response and low noise. Carried in one hand, or in the supplied gig bag, they provide an exceptional combination of pure sound reproduction and portability.

Technical Specs

System Clarus 1 Clarus+
Frequency Response 20 Hz – 20 kHz, ± 0.5 dB
Distortion <0.5% full output, <0.1% typical
Hum and Noise -85 dB or better
AC Power 115V/60Hz, 230/50Hz, switchable
Japan version is 100V, 50/60 Hz only
Size 10.2 x 8.2 x 3.5 inches
Weight less than 5 pounds
Preamp (mic and instrument inputs through combo jack)
Mic Input 600 ohm balanced, XLR connector
Phantom Power 48 volts, on/off switch w/LED indicator
Instrument Input 1 Mohm impedance, 1/4″ jack
Direct Out +4 dB, balanced, XLR connector, ground lift, pre/post EQ selector
Effects Loop Parallel type with return level control
Bass Control Shelving type, ±15 dB @ 60 Hz
Mid Control ±15 dB @ 650 Hz
Treble Control Shelving type, ±15 dB @ 10 kHz
Notch Filter >-18 dB sweepable from 30 to 400 Hz
Low Cut Filter -12 dB/octave sweepable from 30 to 400 Hz
Type Digital with 6 presets and level control
Program presets 3 reverb (hall, room, plate), delay, ambient chorus, flange
Power Amp
Topology Class D (PWM)
Switching Frequency 250 kHz
Output Power 250 Watts (8ohm)
400 Watts (4ohm)
500 Watts (2ohm)
450 Watts (8ohm)
800 Watts (4ohm)
1000 Watts (2ohm)
Minimum Load 2 ohms
Output Connectors Neutrik Speakon type (pole 1)
Included Accessories Gig bag with shoulder strap, Speakon to 1/4 inch adapter

Control Panels
Clarus 1


Rear Panel

Clarus 1


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