Connect with us

Hi, what are you looking for?

A/V Receivers & Preamp/Processors

Denon AVR-X8500HA A/V Receiver and Marantz AV8805A Preamp (2021 models) Get HDMI 2.1 Upgrades

Denon and Marantz enable HDMI 2.1 in their top-of-the-line A/V receiver and preamplifier/processor for 2021.

Denon AVR-X8500HA A/V Receiver Front

The flagship Denon A/V receiver and Marantz preamp/processor have been hanging around the product line since 2018. Each top-of-the-line home theater component has been missing one very important feature — HDMI 2.1 — which enables compatibility with 4K/8K TVs and the latest gaming consoles. That’s about to change, for both new and previous owners.

Denon and Marantz today announced an upgrade option for current owners of their flagship home theater products, the Denon AVR-X8500H and Marantz AV8805. For a fee ($599 US / $749 CA), either unit can be sent back to the factory to have a new HDMI 2.1 circuit board installed. The upgrade enables 8K/60Hz upscaling and passthrough, 4K/120Hz pass-through, HDR10+, Dynamic HDR, HDCP 2.3, as well as other HDMI 2.1 technologies.

Denon AVR-X8500HA A/V Receiver Front
Denon AVR-X8500HA A/V Receiver (2021)

Denon and Marantz will also be selling the same units with the HDMI 2.1 upgrade pre-installed. These new units will labeled “A” models, named the AVR-X8500HA and AV8805A. The Denon AVR-X8500HA will retail for US $4,299, and the Marantz AV8805A at $4,799. 

Marantz AV8805A A/V Preamplifier 2021
Marantz AV8805A A/V Preamplifier (2021)

The improved components now also boast the latest HDMI technologies. Enjoy movies and shows with stunning picture quality thanks to a dedicated “8K” HDMI input enabling 8K/60Hz and 4K/120Hz video pass-through, new HDR format support including HDR10+ and Dynamic HDR, and a new HDMI feature called Quick Media Switching (QMS), which allows a source to instantly switch frame rate to eliminate screen blackout. For exceptional color, clarity and contrast the latest models still support HDR10, HLG (Hybrid Log Gamma) and Dolby Vision, as well as 4:4:4 Pure Color subsampling and BT.2020 pass-through.   

The improved products can also upscale existing HD and 4K content to 8K so more people can experience the power of 8K resolution. They also continue to support eARC (Enhanced Audio Return Channel), which allows lossless and object-based audio transmission like DTS:X and Dolby Atmos from TV apps or connected devices using a single HDMI cable. 

Denon AVR-X8500HA A/V Receiver Rear
Denon AVR-X8500HA A/V Receiver Rear
Marantz AV8805A A/V Preamplifier Rear
Marantz AV8805A A/V Preamplifier Rear

Several new features give gamers an edge, including razor sharp motion clarity with 4K/120Hz pass through and Variable Refresh Rate (VRR) to reduce frame tearing and improve overall precision. Get a jump on the competition with Auto Low Latency Mode (ALLM) and Quick Frame Transport (QFT), each designed to reduce lag and improve stats. See the enemy before they see you with stunning 8K picture quality.

In addition to this, and in accordance with Denon and Marantz’s history of advanced customer support, current owners of the Denon AVR-X8500H and Marantz AV8805 will have the opportunity to upgrade the HDMI/Digital board within their units to obtain the same features as the “A” components. The upgrade requires a hardware modification at a Denon and Marantz certified Service Center. Beginning June 15, 2021, this will be arranged on request by contacting Denon or Marantz directly via the Denon Site, and Marantz Site for US$599 or CA$749. This upgrade service willl be offered both in the United States and Canada. For customers outside of the US and Canada, it is recommended to contact the local Denon or Marantz dealer or distributor for the availability of the upgrade given potential variations in price and availability. 

Denon AVR-X8500HA HDMI 2.1 Circuit Board
Denon AVR-X8500HA HDMI 2.1 Circuit Board
Marantz AV8805A HDMI 2.1 Circuit Board
Marantz AV8805A HDMI 2.1 Circuit Board

Upgraded Features

Once upgraded, the components will be exactly the same as the new “A” models. See what’s changed below.

2021 (“A”) Models / Upgraded2018 Models
FeaturesDenon AVR-X8500HA
Marnantz AV8805A
Denon AVR-X8500H
Marantz AV8805
8K60Hz and 4K120Hz Pass-throughYes
(A dedicated “8K” input and “Main”, ”Sub” outputs support up to FRL 40Gbps)
No
(4K60Hz, up to TMDS 18Gbps)
HDR10+, Dynamic HDR, VRR, ALLM, QMS, QFTYes (all Inputs)ALLM only
UpscalingUp to 8K (all inputs)Up to 4K (all inputs)
Copy Protection StandardHDCP 2.3HDCP 2.2
Denon AVR-X8500HA A/V Receiver Top

Upgradability 

For owners of either the Denon AVR-X8500H or Marantz AV8805 who wish to perform the HDMI 2.1 upgrade, please visit the Denon Site or Marantz Site for details. The process to upgrade the Denon AVR-X8500H or Marantz AV8805 follows: 

  1. Customer visits Denon Site or Marantz Site. Follows instructions, and checks out.
  2. United Radio, official repair partner of Denon and Marantz, will ship a box to the customer.
  3. A confirmation will be sent to the customer via email with instructions on what to do with the shipping carton. This will include details on how to affix an upgrade kit label to the box, and a prepaid shipping label. 
  4. Customer ships carton to United Radio.
  5. United Radio receives product and performs upgrade within 48 hours. 
  6. Return shipment sent out, customer receives shipping notification from United Radio with tracking.
Denon AVR-X8500HA A/V Receiver Top
Denon AVR-X8500HA A/V Receiver Top
Marantz AV8805A A/V Preamplifier Top
Marantz AV8805A A/V Preamplifier Top

Price & Availability

Advertisement. Scroll to continue reading.

Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Advertisement

Latest Products

LG StanbyME 2 Portable TVs

HDTV 4K & 8K TV

LG's new StanbyME 2 is a portable smart touchscreen TV with a detachable design, QHD screen, built-in battery, and flexible placement.

Pro-Ject E1.2 Turntable Top Black Pro-Ject E1.2 Turntable Top Black

New Products

Pro-Ject E1.2 delivers audiophile-grade performance at a budget price. A real entry-level winner with serious upgrades and no gimmicks—just sound.

Cambridge Audio Melomania P100 SE White Headphones in hand Cambridge Audio Melomania P100 SE White Headphones in hand

New Products

Cambridge Audio's Melomania P100 SE brings audiophile-grade ANC, 100-hour battery life, and aptX Lossless Bluetooth in a sleek £249/$299 package.

Audio Advice Revelation Luxury Home Theater Chairs with Underneath Lighting On Audio Advice Revelation Luxury Home Theater Chairs with Underneath Lighting On

A/V Furniture & Accessories

Tired of sharing a stained IKEA couch with your dog? The Revelation Luxury chair from Audio Advice brings heat, massage, USB-C, and legit comfort...

Epson ProCinema LS9000 projector. Epson ProCinema LS9000 projector.

New Products

With true 4K resolution, a bright colorful image and a motorized lens for maximum flexibility, Epson's new Pro Cinema LS9000 offers a lot of...

Onkyo C-30 CD Player Black Front Onkyo C-30 CD Player Black Front

CD Players

Onkyo's new Icon C-30 CD player brings audiophile tech at a surprising price. Discover why physical CDs still matters at Audio Advice Live 2025...

Gift Ideas?

Amazon Prime Day is July 8-11, 2025

Daily Deals

Amazon Prime Day is a four-day shopping event from July 8-11, 2025 offering the biggest discounts of the year on consumer electronics.

You May Also Like

Earbuds & In-Ear Headphones

Denon+ lets anyone try its PerL or PerL Pro noise cancelling wireless earbuds for a low monthly fee with annual upgrades to next model.

Integrated Amps & Stereo Receivers

Check out the Marantz M1 streaming amplifier, Quad's retro Integrated Amp, Ruark's stereo console and Schiit's sold out headphone amp.

Home Theater

Trinnov has produced its own series of trailers and clips that demonstrate the limits of home and commercial theater installations.

Ask an Expert

Just like Sonos, HEOS enables multiroom music streaming, but with higher quality audio and more device choices. Here's what it is and how to...

Reviews

Denon’s $599 DL-A110 cartridge: same legendary DL-103 guts, fancy headshell, and enough detail to make overpriced MCs look like a midlife crisis.

A/V Receivers & Preamp/Processors

Marantz offers six home theater A/V Receivers from $599 to $4,500. What’s the difference, and which one might be right for you?

New Products

Denon is celebrating its 110th Anniversary with a new version of the DL-103 cartridge. The Denon DL-A110 MC phono cartridge is $599.

Articles

Class D amps from $130 to $50,000—pulling more ears into hi-fi without demanding you sell a kidney. Solid tech, serious power, and none of...

Advertisement

ecoustics is a hi-fi and music magazine offering product reviews, podcasts, news and advice for aspiring audiophiles, home theater enthusiasts and headphone hipsters. Read more

Copyright © 1999-2024 ecoustics | Disclaimer: We may earn a commission when you buy through links on our site.



SVS Bluesound PSB Speakers NAD Cambridge Audio Q Acoustics Denon Marantz Focal Naim Audio RSL Speakers