March 28, 2022

Stevens Aerospace & Alto Aviation Complete Major G-IVSP CMS/IFE Retrofit

Touchscreen galley panel

Stevens Aerospace and Defense Systems, LLC (“Stevens”) and ALTO Aviation (“ALTO”) are proud to announce they have completed a major Gulfstream G-IVSP Cabin Management System (CMS) and In-Flight Entertainment system (IFE) retrofit. Along with the CMS and IFE, the aircraft received complete exterior and interior LED lighting including multi-colored upwash/downwash cabin mood lighting, the latest in high-speed Wi-Fi with Gogo’s AVANCE L5, full custom paint, extensive engine and maintenance work, and a complete interior re-configuration. The interior modification took this aircraft from an outdated flying office/apartment to an exclusive VIP Executive Cabin as envisioned by the new owner. The CMS/IFE retrofit represents ALTO’s most complete full-featured offering with ALTO’s top-of-the-line ALTO Sound™. In addition, ALTO supplied HD video monitors, A/V selection, HDMI inputs, Bluetooth® Audio, and interface to the moving map. The ALTO 6.2 Soundstage™ immersive sound system included multiple loudspeakers and subwoofers all tuned onsite by ALTO engineers to customize the performance specifically for this unique G-IVSP cabin to the owner’s ear and preference. The forward section incorporates ALTO’s recently introduced MySound™ VIP Optimization, allowing the owner to select the preferred audio mode and easily switch between full-cabin optimization and Surround Sound for the forward-facing VIP seats or VIP Surround. “Music and sound systems were extremely important to the new owner,” said Tony Raines, Stevens’ Large Cabin Sales Manager. “ALTO’s power and precision state-of-the-art audio system fit the application perfectly”.

The new owner had very specific requirements for the CMS which the original, and partially obsolete, system in the 2000 model Gulfstream could not handle. This led Stevens to choose ALTO’s Cadence™ Cabin Management System as the best solution for this specific application. The system incorporated updated and fully customized direct-replacement switch panels located at each seat. The CMS also included complete and seamless control of lighting, shades, climate, and galley functions. Lastly, the ALTO Cadence™ Cabin Control App allows all passengers to control all the cabin functions from their tablet or phone giving the owner precisely what he desired in functionality and ease of use. The touch-screen galley panel allows the flight crew elegant and efficient control of all aircraft cabin systems, including cabin entertainment. In addition to the mounted touch panel, the system includes a tablet PC to allow the crew to bring the galley panel control to their seat, offering a layer of redundancy.

“We are thankful to everyone at Stevens Aerospace for choosing us as their partners for this special project. This G-IVSP installation is as professional as it gets; the attention to detail was impeccable, and the final result was simply outstanding; a no-compromise solution with all the bells and whistles,” said Steve Scarlata, V.P. Engineering R&D at ALTO Aviation. “I’m delighted with the result that sets a reference in the industry and a whole new approach to an affordable, complete ALTO Sound and user-friendly cabin control experience.”

Gulfstream Interior gray tan

For more information on Stevens Aerospace contact Phil Stearns, Director of Sales and Marketing at

For more information on ALTO Aviation, visit or Cristina Scarlata, Senior Director, Strategic Marketing at

About Stevens Aerospace and Defense Systems, LLC
Stevens Aerospace and Defense Systems, LLC (“Stevens”) provides MRO (maintenance, repair, and overhaul) services on a wide range of aircraft produced by manufacturers such as Textron, Bombardier, Gulfstream, Pilatus, Dassault, and Embraer. Stevens presently operates facilities in Greenville, S.C. (GYH), Dayton, OH (DAY), Smyrna, TN (MQY), as well as a 24-hour/365-day AOG (aircraft on ground) mobile maintenance division. Stevens is also a provider of depot level aircraft maintenance, refurbishment, and modification for federal, state, and local governments. All Stevens locations hold FAR Part 145 repair station certificates and Mexican AFAC certification. GYH also holds EASA certification and conforms to ISO9001: 2015, AS9110C, and DCMA 8210.1C guidelines.

About ALTO Aviation
ALTO Aviation is an aerospace industry leader in premium cabin sound. Our team designs, manufactures, and distributes premium customized cabin audio systems and Cabin Management for all aircraft types in Business Aviation. Our solutions include Digital Surround Sound, Immersive 3D audio ALTO Soundstage™, VIP seat optimization, PA/Chime Systems, Bluetooth® audio, Cadence™ Cabin Management System, direct replacement Passenger Controls, and ALTO cabin control app. ALTO Cabin Audio Systems are standard OEM equipment on Gulfstream G700, G600, G650, and G280, Falcon F8X, F7X, F6X, F900, F2000, Embraer Praetor 600, Praetor 500, Legacy 500 and Legacy 450, Cessna Citation Latitude, Longitude and XLS+, Airbus 330 upper-level lounge speakers, Bell Helicopters PA Speakers, and Sikorsky S-92. All our products are FAA TSO-C139 approved and are sold to most major OEMs and successfully installed by leading MRO companies worldwide. In addition, ALTO cabin systems engineers tune each cabin on-site for maximum installation optimization. As a result, over 5,000 business jets fly with ALTO Aviation components. ALTO also manufactures precision sheet metal and machined parts for aerospace and multiple high-standard industries. ALTO Aviation’s corporate headquarters are located in Sterling, MA. Our systems are proudly designed, engineered, manufactured in the US, and distributed worldwide. For more information on ALTO Aviation, visit

  • News

Related Posts