The Restrepo Group
Every company in the Restrepo Group has been personally vetted by Michael Restrepo and his team over years of collaboration on real projects. We don’t maintain a referral list. we maintain a standard. These are firms we’ve worked alongside on dozens of builds, renovations, and installations, and whose work we stake our reputation on.
When you hire through the Restrepo Group, you’re not getting a name off a list. You’re getting a company that has already proven. on our most demanding projects. that they deliver the same caliber of work our clients expect from us. We coordinate directly with every partner to ensure timelines align, communication flows, and the outcome meets the standard we’ve set across every discipline.
Marantz
Why Marantz Is Part of the Restrepo Group
Founded in 1953 and headquartered in Kawasaki, Japan (now part of Sound United under Masimo), Marantz has spent over seven decades earning a reputation that no marketing budget could manufacture: the conviction among serious listeners that Marantz gear simply sounds better. That trademark warm, musical sonic character. present in the brand’s earliest amplifiers and preserved through every generation since. is the reason we specify Marantz for our most demanding home theater and hi-fi builds.
The current product line is the strongest in the brand’s history. The Cinema 30 is Marantz’s flagship 11.4-channel AV receiver, supporting Dolby Atmos, DTS:X Pro, and Auro-3D. the complete format set for immersive audio. For clients who want a separation of processing and amplification, the AV10 offers 15.4-channel pre/pro processing at reference level, and the AMP 30 power amplifier delivers 200 watts per channel. bridgeable to 400 watts. with the dynamic headroom that dedicated home theaters demand. The newly introduced AV 30 preamp (2026) brings the most advanced processing the brand has ever offered at $4,000, while the Cinema 70s provides an accessible entry point for 7.2-channel builds without sacrificing the Marantz sound.
Marantz was named Best Home Cinema Manufacturer by AVForums for 2025–26. recognition from one of the most technically rigorous review communities in the industry. We brought Marantz into the Restrepo Group because their engineering matches their legacy: these are products that reward a properly designed room and a well-calibrated installation.
Marantz Solutions
What We Build With Marantz
Dedicated Theater Systems
Cinema 30 and AV10 flagship systems paired with AMP 30 power amplification. designed, calibrated, and commissioned for dedicated screening rooms where Dolby Atmos, DTS:X Pro, and Auro-3D immersive audio perform at reference level.
Multi-Room Audio
Marantz receivers and zone amplifiers distributed across a residence. integrated with Crestron or other control platforms for consistent, room-by-room audio management with the sonic character Marantz is known for.
Two-Channel Hi-Fi
Pure stereo listening systems built around Marantz separates. for clients who want a dedicated music room that delivers the warmth, resolution, and musical honesty the brand has cultivated since 1953.
AV Processing & Amplification
AV 30 and AV10 pre/pro configurations with AMP 30 power amplification. the separation of processing and amplification for clients who demand maximum performance and the flexibility to upgrade components independently.
Working Together
How It Works When You Work Through Us
Every Marantz installation begins with a room analysis. Acoustic treatment, speaker placement, and amplifier selection are all interdependent. and getting them right requires both the technical knowledge to read a room and the listening experience to trust your ears when the measurements are done. We design the system, specify the Marantz components, handle procurement, install and rack the equipment, and calibrate using both measurement tools and critical listening.
After calibration, we walk you through every mode and input so you understand what you have. Ongoing support is available. software updates, calibration refreshes as a room settles, and expansion as your system grows. You work with Restrepo Innovations throughout. We manage the Marantz relationship directly.
Part of the Restrepo Group: When you work with Marantz through us, our team handles the complete design, installation, and calibration process. coordinating with your acoustic consultant, interior designer, and contractor to ensure the room and the equipment are optimized together. We’ve built this network over years of collaboration specifically so our clients never have to wonder whether the trades they’ve been connected to will deliver at the same level we do. They will.