The Maestro Arcas Compressor Sustainer is an all-analog compressor pedal with three knobs and a two-position mode switch, part of the second wave of pedals Gibson released under its revived Maestro brand in November 2022123. Maestro describes it as offering both transparent, light compression and heavy, tight compression, with enough sustain and level compensation to serve as a go-to workhorse in any situation1.
A compressor evens out the difference between your loudest and quietest notes: it pulls down peaks and raises the tail of a note so it rings longer. The Arcas is aimed at players who want that job done without the pedal announcing itself. GuitarPlayer's reviewer, Art Thompson, found it does the job effectively and is very quiet and transparent, ideal for guitarists who want a compressor that does not overtly affect dynamic feel4.
Where the Arcas came from
The Arcas arrived in the second wave of the relaunched Maestro lineup, announced on 8 November 2022 alongside the Agena Envelope Filter, Mariner Tremolo, Orbit Phaser and Titan Boost23. Like the rest of the range, it is built as an analog pedal with a true bypass footswitch and a HI/LO Mode toggle, and the LED lights in the bugles in the Maestro logo illuminate whenever the pedal is active1. It lists at $149 to $155 in the US, with UK pricing at £110 including VAT51. ===
What the Arcas does to your sound
Maestro positions the Arcas as a versatile compressor: at one end of its range it stays transparent and light, at the other it goes heavy and tight, and it delivers sustain and level compensation for everyday use1. Delicious Audio described it at launch as a transparent compressor/expander6.
The Hi/Lo mode switch is the pedal's main tonal dividing line. In Guitar World's review, Alex Lynham found Hi mode more sensitive to pick attack, giving a real snappy transient at the start of any note that is at once brighter and louder than Lo mode, which offers a more natural start to the note envelope5.
"The Arcas does the job effectively and is very quiet and transparent, making it ideal for guitarists who can appreciate a compressor that doesn't overtly affect that all-important dynamic feel."
The controls: Sustain, Attack, Level and the Hi/Lo switch
The Arcas keeps its control set to three knobs and one toggle1. Here is what each does, based on Guitar World's review and the maker's description:
| Control | What it does |
|---|---|
| Sustain | Effectively turns up the amount of compression5 |
| Attack | Sets how quickly the compressor engages, and can further shape the transient at the start of the note5 |
| Level | Adjusts the output so you can compensate for volume lost during compression, or build in an outright boost5 |
| HI/LO toggle | Selects the mode: HI is more sensitive to pick attack, LO is less sensitive1 |
Gearnews described the Lo/Hi switch as controlling the decrease and increase of the attack sensitivity2, which matches the maker's own wording: LO mode is less sensitive to pick attack, HI mode is more sensitive1.
The true bypass footswitch triggers LED lights in the bugles of the Maestro logo when the pedal is on, so you always know its status at a glance1.
Power: 9V, 21.9 mA
The Arcas runs on a 9V battery or a regulated 9V DC power supply with a 5.5 x 2.1 mm plug wired center negative, and draws 21.9 mA1.
The power switch is incorporated into the input jack, so unplug the input when the pedal is not in use to prevent the battery draining1.
At 21.9 mA the Arcas is an easy load for a typical pedalboard power supply, and its 470 Ohm output impedance1 means it drives long cable runs and later pedals without difficulty.
Videos
Pedal of the Day
gearfever
Buddy Blues
Questions
Is the Maestro Arcas true bypass?
Yes. Gibson lists the Arcas with true bypass switching, so with the pedal off your signal passes through without active circuitry in the way. The footswitch also lights the LEDs in the Maestro logo when the effect is engaged1.
What is the difference between Hi and Lo mode on the Arcas?
The two-position Mode toggle changes how sensitive the compressor is to pick attack. Hi mode is more sensitive and gives a snappy, brighter, louder transient at the start of a note; Lo mode is less sensitive and offers a more natural start to the note envelope15.
Is the Maestro Arcas analog?
Yes. Gibson's product page lists the Arcas as all-analog, and press coverage of the 2022 second wave described the batch as classic analog stompboxes13.
Does the Arcas work on bass?
Gibson does not publish a specific claim about bass use for the Arcas. It is a compressor with a Hi/Lo sensitivity switch, and compressors are commonly used on both guitar and bass, but the maker's own material does not single out bass as an application2.
Sources (6)
- Maestro Arcas Compressor Sustainer, Gibson (gibson.com)
- Maestro releases second wave of effects pedals, gearnews.com, 2022-11-08
- Maestro Knocks Out Another Batch of Classic Analog Stompboxes, GuitarPlayer, 2022-11-09
- Maestro Agena Envelope Filter, Arcas Compressor Sustainer, Mariner Tremolo, Orbit Phaser and Titan Boost Reviews, GuitarPlayer (www.guitarplayer.com), 2023-01-05
- Maestro Agena, Arcas, Mariner and Orbit review, Guitar World, 2023-02-08
- 5 New Maestro Pedals, Delicious Audio, 2022-12-06
