The J.Rockett Audio Designs Airchild Six Sixty is a compressor pedal from J Rockett that brings the tone of a legendary studio compressor to a pedalboard. The maker describes it as recreating the signature compression of the famous vintage Fairchild 660 limiter, a tube-powered studio unit from the 1960s that press coverage regularly calls one of the most legendary compressors ever built12.
Where most compressor pedals take their cue from stompbox circuits or generic studio designs, the Six Sixty is built around a specific reference. J Rockett says it offers a wide range of compression and an ultra-fast attack, letting you dial in the amount of sustain you want, and the company designed it to work like a studio compressor rather than just a limiter13.
A Fairchild 660 compressor in pedal form
The Fairchild 660 is a mono tube limiter, with the stereo 670 as its two-channel sibling, and both are treated as studio landmarks. Delicious Audio notes that there are not many pedals inspired by what it calls "perhaps the most legendary studio compressor of all times: the Fairchild 660"54. The Airchild Six Sixty is J Rockett's answer to that gap.
Guitar Pedal X frames the pedal as a compact Compressor/Utility pedal inspired by the 1960s Fairchild 660, and is careful about what that means2:
"And of course the J Rockett variant is more of sonic recreation / sound-alike."
In other words, this is not a tube limiter squeezed into an enclosure. It is a pedal-format circuit chasing the character of the original, which Gearnews describes as offering "a Fairchild 660 studio compressor in a compact pedal format"3.
What it does to your tone
J Rockett says the pedal is designed for players looking to enhance their tone with rich harmonics and balanced transients1. MusicRadar adds that it was designed as a way of enriching your tone with more harmonic content, just as the original tube-powered Fairchild 660 and the stereo 670 do, and that J Rockett hopes it will be an always-on pedal4.
MusicRadar's launch coverage sums up the intended effect:
"The Airchild Six Sixty simply makes you want to play more, it increases sustain without crushing your output, it imparts richness to your overall tone and adds feel to your playing."
One design choice shapes how you use it. Delicious Audio reports that the J Rockett team chose to stick to a fixed ratio that is optimal for electric guitars, so there is no Ratio control to adjust5. Gearnews describes the result as adding a studio-grade sonic richness to your tone, and notes the pedal was designed to work like a studio compressor, not just a limiter3.
The R&D team had specific players in mind. MusicRadar reports they used the guitar tones of Mark Knopfler and Lowell George as a reference, specifically George's slide playing4.
Controls, housing and connections
The pedal has top-mounted jacks on what MusicRadar calls a sturdy housing4, a layout that keeps the sides clear so the pedal sits tightly against its neighbors on a board. The maker lists its weight at 1 lb1.
Price and availability
The maker's product page lists the Airchild Six Sixty at $230.00 USD1. At launch in March 2024, MusicRadar reported a price of $229 USD (with a UK price of £239), and Gearnews quoted an MSRP of GBP 239 / EUR 269 with a retail price of $239.00 at its affiliate partner43. Guitar Pedal X called it "exceptional value for money" at $229 and noted it was available quite widely, including on Sweetwater2.
J Rockett has also offered a B-stock version of the Airchild6.
J Rockett has offered a B-stock version of the Airchild Six Sixty in addition to the standard unit, so condition may vary by listing.
What reviewers said
Press coverage at launch was positive about the concept. Gearnews concluded that "this looks like a solid interpretation of a Fairchild 660-style unit, and the compact pedalboard-friendly format will help it sell units overall"3. Guitar Pedal X highlighted the value proposition, calling it exceptional value for money at $2292.
Videos
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Questions
Is the J.Rockett Airchild Six Sixty based on the Fairchild 660?
Yes. J Rockett describes the Six Sixty as recreating the signature compression of the famous vintage Fairchild 660 limiter, and press coverage from MusicRadar, Gearnews and Guitar Pedal X all identifies it as the company's take on that classic studio compressor. Guitar Pedal X calls it more of a sonic recreation or sound-alike than a literal copy.
How much does the J.Rockett Airchild Six Sixty cost?
The maker's product page lists it at $230.00 USD. At launch in March 2024 it was priced at $229 USD, with Gearnews quoting an MSRP of GBP 239 / EUR 269 and a retail price of $239.00 at its affiliate partner. Guitar Pedal X called it exceptional value for money at $229.
Where are the jacks on the Airchild Six Sixty?
The jacks are top-mounted, on what MusicRadar describes as a sturdy housing. Top-mounted jacks keep the pedal's footprint tight on a pedalboard, since cables run up and over the enclosure rather than out the sides.
What does the Airchild Six Sixty do to your tone?
J Rockett says it enhances your tone with rich harmonics and balanced transients, with a wide range of compression and an ultra-fast attack. MusicRadar reports that it increases sustain without crushing your output, imparts richness to your overall tone and adds feel to your playing. It was designed as an always-on pedal.
Is the J.Rockett Airchild Six Sixty still in production?
At launch in March 2024 it was available to pre-order, and by the following week Guitar Pedal X reported it was available quite widely, including on Sweetwater.
Sources (6)
- .45 Caliber Overdrive, rockettpedals.com, 2026-06-26
- Guitar Pedal X, Guitar Pedal X, 2024-03-21
- J Rockett Airchild Six Sixty, gearnews.com, 2024-03-19
- “It smoothens out the transients, enhances harmonic richness and adds a hint of 'growl'”: J Rockett Audio Designs launches the Airchild Six Sixty Compressor, MusicRadar, 2024-03-19
- J. Rockett Airchild Six Sixty Compressor, Delicious Audio, 2024-04-18
- .45 Caliber Overdrive, rockettpedals.com, 2026-04-01
