Beat-Sonic Encore Sigma Plug and Play Amplifier Kit for Lexus GX550

The Beat-Sonic Encore Sigma (ENS-L201) is a plug-and-play premium sound upgrade kit engineered specifically for the 2024+ Lexus GX 550 and 2022+ Lexus NX without Mark Levinson - and it is the only plug-and-play solution available for these vehicles. No cutting, no harness modifications, no speaker replacements. Just dramatically better sound from a single unit that connects directly to your factory amplifier.

Why your factory premium sound system isn't performing at its best - and how the Encore Sigma fixes it

Even factory premium sound systems are built to a cost. The amplification stage inside your Lexus GX 550 and NX factory audio system leaves significant performance on the table - resulting in a sound that feels flat, lacking depth, and unable to fully reproduce the detail in the music you love. Vocals lose their immediacy, bass lacks definition, and the soundstage feels compressed. The Encore Sigma solves this by optimizing and strengthening the audio signal delivered to your factory amplifier - giving it a cleaner, more powerful signal to work with, and allowing your premium factory speakers to perform closer to their true potential.

Your factory head unit, steering wheel controls, and all original Lexus features stay completely intact. You simply get the rich, immersive sound your system was always capable of - finally unlocked.

Key features

• The only plug-and-play sound upgrade available - no other plug-and-play solution exists for the Lexus GX and NX non-Mark Levinson systems
• 50W x 8-channel Class AB output - powers all factory speakers simultaneously for a full, balanced soundstage
• Plug-and-play installation - connects directly to your factory amplifier, no special tools, no harness modifications, no cutting
• Deeper bass, clearer midrange, more articulate highs - without replacing a single speaker
• Engineered for factory premium sound systems - tuned to retain the original system's characteristics while elevating performance
• RCA audio output - L/R RCA outputs for additional system expansion if desired
• Retains all factory Lexus features - head unit, steering wheel controls, navigation, and all OEM functionality remain fully intact
• Made in Japan

Specifications

• Maximum output: 50W x 8ch (4Ω)
• Amplifier class: Class AB
• Compatible impedance: 4–8Ω
• Remote output: max 0.3A
• Frequency response: 20–80kHz
• Power supply voltage: DC11V–15V
• Current consumption: 0.4A (no signal)
• Fuse: 15A
• Audio output: RCA L/R
• Dimensions: 106mm (W) x 214mm (D) x 40mm (H)
• Weight: 850g

Compatible vehicles

The ENS-L201 is compatible with the following Lexus models - without Mark Levinson only:

• 2022+ Lexus NX without Mark Levinson - installed at the factory amplifier underneath the center console
• 2024+ Lexus GX 550 without Mark Levinson - installed at the factory amplifier underneath the driver seat

mportant: This kit is NOT compatible with Lexus models equipped with the Mark Levinson premium audio system. If your GX 550 or NX has Mark Levinson, this kit will not work. Mark Levinson is typically listed as a premium audio upgrade on your window sticker or Monroney label. Not sure which audio system your Lexus has? Email info@beatsonicusa.com with your year, model, and trim before purchasing.

NOTICE for GX 550: Depending on your vehicle's electronic tolerances from the factory, you may hear a faint thump or a pop noise upon car turn on or turn off.

Installation

No special tools required. No modifications to the factory wiring harness. The Encore Sigma connects directly to your factory amplifier -  under the center console on the NX and under the driver seat on the GX 550. Most owners complete the install in approximately one hour using our step-by-step YouTube video guides. Professional installation is available in Southern California through Beat-Sonic directly, or through our authorized installer network worldwide. Email info@beatsonicusa.com with your location or zip code to find the nearest shop.