Marantz GRAND HORIZON Wireless Speaker

Description

About the Marantz GRAND HORIZON Wireless Speaker

The Marantz GRAND HORIZON Wireless Speaker uses an 8-driver array, including an 8-inch Marantz Gravity woofer, 4 x 3-inch wideband drivers, and 3 x 1-inch high-frequency drivers. It is powered by a 370W Marantz Rise GaN FET amplifier and controlled by Marantz Mirage DSP for room-filling, low-distortion playback.

It also includes HEOS Built-in, Wi-Fi, Bluetooth, AirPlay 2, Spotify Connect, USB-C playback, optical input, RCA input, and HDMI eARC. It can work as a standalone wireless speaker, join a HEOS multi-room system, or be paired with another GRAND HORIZON for a true stereo setup.

What We Like

At Rapallo, the Marantz GRAND HORIZON is for customers who want hi-fi quality without the rack of separate boxes. It is not a small Bluetooth speaker. It is a premium wireless music system with enough scale, power, and low-frequency authority to suit larger living spaces.

The big difference over the smaller Horizon is scale. GRAND HORIZON has more drivers, a larger 8-inch woofer, and a more powerful 370W amplifier. Therefore, it is better suited to bigger rooms, open-plan living areas, and customers who want a more confident, room-filling sound from one elegant speaker. Marantz positions GRAND HORIZON as delivering the Horizon concept on a larger scale, with more amplifier power and more drive units.

We also like the everyday usability. HEOS makes streaming simple, while HDMI eARC lets the GRAND HORIZON improve TV sound without adding an AV receiver or soundbar. Plus, RCA, optical, and USB-C inputs give it useful wired flexibility. For NZ customers wanting one beautiful speaker for music, TV, entertaining, and multi-room audio, GRAND HORIZON is a strong premium option.

 

 

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The Marantz GRAND HORIZON Wireless Speaker Is Ideal For

• Premium all-in-one wireless music systems
• Larger living rooms and open-plan spaces
• Customers wanting Marantz sound without separates
• TV sound upgrades via HDMI eARC
• HEOS multi-room audio systems
• Design-led homes where the speaker is visible
• Listeners who want one powerful speaker rather than an amplifier and passive speakers

 

What the Experts Say

• Sound & Vision said the GRAND HORIZON is a rare all-in-one speaker that competes with traditional hi-fi gear in tone, fidelity, and musicality, while working well in real homes without racks of electronics or floorstanding speakers.
• Audioholics reported that the Horizon and GRAND HORIZON use high-end finishes, custom GaN FET amplification, HEOS streaming, and built-in bass drivers, with GRAND HORIZON positioned as the larger, more powerful model.
• The Verge noted that GRAND HORIZON is the larger model with more power and more drivers, including an 8-inch subwoofer, three 1-inch silk-dome tweeters, four 3-inch full-range drivers, and 370W amplification.
• “The Marantz Horizon takes the concept of a wireless speaker and turns it up to the max, adding in high-quality materials, a bold form factor and a serious amount of power.” – Wallpaper Design Awards

 

Frequently Asked Questions

1. What is the Marantz GRAND HORIZON?
   The Marantz GRAND HORIZON is a flagship all-in-one wireless speaker with HEOS streaming, 370W amplification, an 8-driver array, HDMI eARC, AirPlay 2, Bluetooth, Wi-Fi, and premium Marantz design.
2. How powerful is the Marantz GRAND HORIZON?
   GRAND HORIZON uses a 370W Marantz Rise GaN FET amplifier. It is designed for larger rooms and more powerful playback than the smaller Marantz Horizon.
3. How many drivers does the GRAND HORIZON have?
   It uses eight drivers in total, including one 8-inch Marantz Gravity woofer, four 3-inch wideband drivers, and three 1-inch high-frequency drivers.
4. Does the GRAND HORIZON support HEOS?
   Yes, HEOS is built in. You can stream music, control playback from the HEOS app, and connect it with compatible HEOS multi-room products.
5. Can I connect the GRAND HORIZON to a TV?
   Yes, it includes HDMI eARC. This lets a compatible TV send sound to the GRAND HORIZON, making it a stylish (but expensive) alternative to a soundbar.
6. Can I use two GRAND HORIZON speakers as a stereo pair?
   Yes, two GRAND HORIZON speakers can be paired for stereo playback in the same room.
7. Does the GRAND HORIZON have Bluetooth and AirPlay 2?
   Yes, it supports Bluetooth, Apple AirPlay 2, Wi-Fi streaming, Spotify Connect, and HEOS app playback.
8. Can I connect a turntable to the GRAND HORIZON?
   Yes, but the turntable must have a built-in phono preamp, or you will need an external phono preamp, because the GRAND HORIZON has an RCA analogue input rather than a dedicated phono input.
9. How is GRAND HORIZON different from Marantz Horizon?
   GRAND HORIZON is the larger flagship model. It has more drivers, a larger 8-inch woofer, more amplifier power, and is better suited to larger rooms.
10. Who is the Marantz GRAND HORIZON best suited to?
    It is best for customers who want a premium all-in-one wireless speaker with serious sound, luxury design, HEOS streaming, HDMI eARC, and room-filling Marantz performance without separate amplifier and speaker boxes.

 

Key Features

• Marantz Rise™ Amplifier
• Marantz Radiance™ 360° Seamless Fabric
• Marantz AuraControl™
• Marantz Mirage™ DSP
• HEOS® Built-in
• Elegant, intuitive user interface

Flagship Marantz Wireless Speaker

GRAND HORIZON is Marantz’s flagship wireless speaker powered by HEOS. It is designed to combine luxury materials, bold form, Marantz sound tuning, and serious wireless audio performance.

8-Driver Acoustic System

The speaker uses eight total drivers, including one 8-inch Marantz Gravity woofer, four 3-inch wideband drivers, and three 1-inch high-frequency drivers. This driver layout helps deliver wide dispersion, strong bass, and a large soundstage from one enclosure.

370W Marantz Rise GaN FET Amplification

The GRAND HORIZON uses Marantz Rise amplification with GaN FET technology and a total amplifier power rating of 370W. This gives the speaker the power needed for large-scale playback with control and efficiency.

Marantz Gravity Woofer

The central 8-inch Marantz Gravity woofer gives GRAND HORIZON its low-frequency foundation. This makes it suitable for customers who want deeper bass from a single premium wireless speaker.

Marantz Mirage DSP

Marantz Mirage DSP helps control the speaker’s multi-driver array and soundfield. It helps fill the room with textured, authentic, and distortion-free music.

HEOS Built-In Streaming

HEOS Built-in gives access to streaming, app control, and compatible multi-room audio. GRAND HORIZON can join an existing HEOS system and play music throughout the home.

AirPlay 2, Bluetooth and Spotify Connect

Wireless playback options include Wi-Fi, Bluetooth, AirPlay 2, and Spotify Connect. This makes the GRAND HORIZON easy to use with phones, tablets, computers, and compatible streaming apps.

HDMI eARC for TV Sound

HDMI eARC allows a compatible TV to send sound to the GRAND HORIZON. This makes it a stylish alternative to a soundbar for customers who want better TV sound without a full surround system.

Wired Inputs for More Flexibility

The GRAND HORIZON includes RCA, optical TOSLINK, HDMI eARC, and USB-C connectivity. That means it can connect to a TV, turntable with built-in phono stage, CD player, DAC, music storage, or other compatible source.

Stereo Pairing Option

Two GRAND HORIZON speakers can be paired for stereo playback in the same space. This gives customers a higher-end two-speaker wireless setup while keeping the system clean and elegant.

Radiance 360 Seamless Ecofiber

The speaker is wrapped in Marantz Radiance 360 Seamless Ecofiber, a sustainable fabric made from recycled ocean plastics. The finish gives the GRAND HORIZON a premium tactile look while supporting its circular design.

AuraControl Touch Interface

The front ring includes Marantz AuraControl lighting and touch interaction. The illuminated ring responds as you approach and can be used for control, including volume adjustment.

Award-Winning Design

GRAND HORIZON has received major design recognition, including a 2025 Red Dot Design Award and iF Design Award recognition listed by Marantz.

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Perfect System Match

The perfect system match is the Marantz GRAND HORIZON as the main wireless speaker in a premium living room. Connect it to the TV using HDMI eARC, stream music through HEOS, and use AirPlay 2 or Bluetooth for quick everyday playback.

For a larger or more immersive music setup, use two GRAND HORIZON speakers as a stereo pair. This keeps the system elegant, wireless, and simple while giving a more traditional left-right stereo image.

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Product Comparison Snapshot

Model	Best For	Key Difference
Marantz Horizon	Premium wireless sound in smaller or medium rooms	6-driver design, 310W amplifier, smaller form
Marantz GRAND HORIZON	Larger rooms and flagship wireless Marantz sound	8-driver design, 8-inch woofer, 370W amplifier, larger scale
Marantz MODEL 60n with speakers	Stereo systems with passive speakers	More traditional hi-fi approach with separate speakers
Marantz MODEL 40n with speakers	Higher-power stereo and TV systems	Separate amplifier and passive speakers, more placement flexibility

 

Specifications

Brand: Marantz

Model: GRAND HORIZON

Product Type: Wireless Speaker / HEOS Wireless Speaker

Speaker Type
Flagship all-in-one wireless speaker

Amplifier Type
Marantz Rise GaN FET amplification

Total Amplifier Power
370W FTC power output rating

Driver Configuration
8-driver array

Bass Driver
1 x 8-inch Marantz Gravity woofer

Wideband Drivers
4 x 3-inch wideband drivers

High-Frequency Drivers
3 x 1-inch high-frequency drivers

DSP
Marantz Mirage DSP

Maximum SPL
111dB at 1m, listed by HiFi Guide

Streaming Platform
HEOS Built-in

Wireless Connectivity
Wi-Fi
Bluetooth
Apple AirPlay 2
Spotify Connect

Multi-Room Audio
HEOS multi-room compatible

Stereo Pairing
Yes, two GRAND HORIZON speakers can be paired for stereo playback

Wired Inputs
HDMI eARC
Optical TOSLINK
RCA analogue input
USB-C playback input

Bluetooth Version
Bluetooth 5.4, reported in launch coverage

Bluetooth Codec
SBC, listed in Marantz manual specifications

USB Playback
Supports compatible music files from USB-C storage, format support varies by file type and system

Control Interface
Marantz AuraControl touch and light ring
HEOS app control

Fabric / Finish Material
Marantz Radiance 360 Seamless Ecofiber

Design Recognition
Red Dot Design Award 2025
iF Design Award 2025 recognition listed by Marantz

Finish Options
Midnight Sky
Moon Ray
Champagne

Optional Accessories
Grand Horizon wall mount
Horizon / Grand Horizon stand options, market dependent

Dimensions
Not publicly confirmed in the sources checked

Weight
Not publicly confirmed in the sources checked

Rapallo Product Data

MPN: GRANDHORIZON

SKU: MARANTZ-GRAND-HORIZON

EAN / UPC / GTIN: 0747192141356

 

Why Buy From Rapallo

✔ Expert advice on choosing between wireless speakers and traditional hi-fi
✔ Help setting up HEOS, HDMI eARC, stereo pairing, and streaming
✔ NZ support and after-sales service
✔ Trusted hi-fi and home entertainment specialists
✔ Practical guidance for placement, room size, and TV audio integration